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1

Wojtasik, Mieczysław, and Dawid Szatten. "Granulometryczny wskaźnik gęstości naturalnej gleb = Granulometric coefficient of natural bulk density of soil." Journal of Education, Health and Sport 5, no. 5 (2015): 76–85. https://doi.org/10.5281/zenodo.17444.

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<strong>Wojtasik Mieczysław, Szatten Dawid. </strong><strong>Granulometryczny wskaźnik gęstości naturalnej gleb = </strong><strong>Granulometric coefficient of natural bulk density of soil. </strong><strong>Journal of Education, Health and Sport. </strong><strong>2015;5(5):76-85. ISSN 2391-8306. DOI</strong> <strong>10.5281/zenodo.17444</strong> <strong>http://ojs.ukw.edu.pl/index.php/johs/article/view/2015%3B5%285%29%3A76-85</strong> <strong>https://pbn.nauka.gov.pl/works/559147</strong> <strong>http://dx.doi.org/10.5281/zenodo.17444</strong> <strong>Formerly Journal of Health Sciences. ISSN
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2

Wojtasik, Mieczysław, and Dawid Szatten. "Wyznaczanie gęstości naturalnej gleb = Determination of natural bulk density of soils." Journal of Education, Health and Sport 5, no. 3 (2015): 218–28. https://doi.org/10.5281/zenodo.16379.

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<strong>Wojtasik Mieczysław, Szatten Dawid. Wyznaczanie gęstości naturalnej gleb = </strong><strong>Determination of natural bulk density of soils</strong><strong>. </strong><strong>Journal of Education, Health and Sport. </strong><strong>2015;5(3):218-228. ISSN 2391-8306. DOI: </strong><strong>10.5281/zenodo.16379</strong> <strong>http://ojs.ukw.edu.pl/index.php/johs/article/view/2015%3B5%283%29%3A218-228</strong> <strong>https://pbn.nauka.gov.pl/works/550075</strong> <strong>http://dx.doi.org/10.5281/zenodo.16379</strong> <strong>Formerly Journal of Health Sciences. ISSN 1429-9623 / 2300-665
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3

KISHNÉ, A. SZ, C. L. S. MORGAN, H. C. CHANG, and L. B. KISH. "VIBRATION-INDUCED CONDUCTIVITY FLUCTUATION MEASUREMENT FOR SOIL BULK DENSITY ANALYSIS." Fluctuation and Noise Letters 07, no. 04 (2007): L473—L481. http://dx.doi.org/10.1142/s0219477507004112.

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Soil bulk density is a physical property of soils that affects water storage, water and nutrient movement, and plant root activity in the soil profile. The ability to quantify soil bulk density using vibration-induced conductivity fluctuation was investigated with possible field applications in the future. The AC electrical conductance of soil was measured using a pair of blade-like electrodes while exposing to periodic vibration. The blades were positioned longitudinally and transversally to the direction of the induced vibration to enable the calculation of a normalized index. This normalize
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Gao, Aimin, and Wei Sun. "Natural Recovery Dynamics of Alfalfa Field Soils under Different Degrees of Mechanical Compaction." Agriculture 14, no. 10 (2024): 1721. http://dx.doi.org/10.3390/agriculture14101721.

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Soil compaction in alfalfa fields has become increasingly severe due to the mechanization of animal husbandry and the increased use of heavy agricultural machinery. Perennial alfalfa land undergoes mechanical compaction several times during the planting period without mechanical tillage. The compacted soil structure may recover through moisture changes, freezing and thawing cycles, and plant growth, but the extent and rate of this recovery remain unknown. In this study, alfalfa plots with two different soil types (medium loam and sandy) in Gansu, China, were selected to address these issues. T
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Pereira, V. P., M. E. Ortiz-Escobar, G. C. Rocha, R. N. Assis Junior, and T. S. Oliveira. "Evaluation of soil physical quality of irrigated agroecosystems in a semi-arid region of North-eastern Brazil." Soil Research 50, no. 6 (2012): 455. http://dx.doi.org/10.1071/sr12083.

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Concern about soil physical quality has grown in recent years, particularly in view of serious problems caused by intensive soil use. We hypothesised that improper soil management in irrigated areas damages the structure of sensitive soils in some regions in North-eastern Brazil. The aim of the study was to evaluate the physical quality of irrigated soils planted with annual and perennial crops, compared with soils under natural vegetation in Ceará State, Brazil. Measurements were made of least limiting water range (LLWR), the S index, and relative density. Undisturbed soil samples were collec
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Ildefonso, Jesner Sereni, Beatriz Carraro da Purificação, Jeselay Hemetério Cordeiro dos Reis, and Marcelo Luiz Chicati. "Correction of the granulometric curve of fine soil using ash from the burning of sugarcane bagasse." MOJ Ecology & Environmental Sciences 8, no. 2 (2023): 47–50. http://dx.doi.org/10.15406/mojes.2023.08.00273.

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In road works, there are cases in which natural soils have inadequate characteristics for their intended use, especially clayey or fine ones, which leads to the need to find stabilization methods that allow the soil to present itself as a suitable material for its application. Thus, the ash, residue generated in the sugar and alcohol industry from the burning of sugarcane bagasse and which often does not have an adequate destination, becomes an attractive material due to its granulometry and chemical composition. Thus, the objective was to study the feasibility of correcting the granulometric
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Rocha, Jonas Elias Castro da, Alberto Bentes Brasil Neto, Norberto Cornejo Noronha, et al. "ORGANIC MATTER AND PHYSICAL-HYDRIC QUALITY OF AN OXISOL UNDER EUCALYPT PLANTING AND ABANDONED PASTURE." CERNE 22, no. 4 (2016): 381–88. http://dx.doi.org/10.1590/01047760201622042224.

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ABSTRACT The aim of this study was to assess organic matter and physical-hydric attributes of an Oxisol under a clonal planting of eucalypt and an abandoned pasture in comparison to a successional forest with its soil under natural conditions at Paragominas municipality, southeast region of the state of Pará. In July 2013, soil samples were collected at the depths 0-0.15 and 0.15-0.35 m, which were used for the determination of the following attributes: organic matter content; soil bulk density; porosity, soil water retention and S index. In field, soil water infiltration tests were performed.
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Nga, Nguyen Thi Thu, Pham Mai Phuong, Nguyen Quoc Khanh, et al. "Risk of Land Degradation: A Case Study of Phu Yen Province, Vietnam." Ecological Questions 35, no. 2 (2023): 1–21. http://dx.doi.org/10.12775/eq.2024.019.

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The issue of the land degradation vulnerability index (LDVI) is multifaceted, encompassing climate, soil, vegetation, policy formulation, and human actions. In Vietnam, the convergence of climatic fluctuations and human impact results in phenomena, such as soil sealing, erosion, salinization, and landscape fragmentation. These phenomena are recognized as significant triggers of land degradation. This paper seeks to present a method for assessing a land's susceptibility to degradation by utilizing ten ecological 10 criteria: NDVI; slope; bulk density (cg/cm3); cation exchange capacity in the so
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Muscolo, Adele, Giovanna Settineri, Federico Romeo, and Carmelo Mallamaci. "Soil Biodiversity as Affected by Different Thinning Intensities in a Pinus laricio Stand of Calabrian Apennine, South Italy." Forests 12, no. 1 (2021): 108. http://dx.doi.org/10.3390/f12010108.

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Forest soil biodiversity, which drives natural ecosystem multifunctionality, can be altered by incorrect forestry management practices. Pinus laricio is the most representative and widespread conifer species in Calabria, South Italy, and appropriate management is needed to maintain Pinus laricio forest for its great economic and natural value. In Europe, thinning is considered the most effective silvicultural treatment to maintain/increase the ecological value of coniferous stands. In this study, moderate thinning (MT), intense thinning (HT), and clear cut (CC) treatments were used to manage P
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10

Stephen, J. Mallo, and A.Umbugadu Alu. "GEOTECHNICAL STUDY OF THE PROPERTIES OF SOILS: A CASE STUDY OF NASSARAWA – EGGON TOWN AND ENVIRONS, NORTHERN NIGERIA." Continental J. Earth Sciences 7, no. 1 (2012): 40–47. https://doi.org/10.5281/zenodo.833425.

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The principal objective in geotechnical testing is to know the properties and behavior of soil as an engineering material. The performance of soil in engineering practice is greatly influenced by the natural environmental conditions and conditions imposed by construction of structures. The aim of soil testing is to obtain reasonably representative values of the soil properties that are reliable and have direct and significant bearing upon the solution of the practical problems involved especially in various aspects of civil engineering. This important more so that Nasarawa State is relatively
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11

Watanabe, Rafaela, Getulio Coutinho Figueiredo, Alvaro Pires da Silva, Júlio César Lima Neves, and Teógenes Senna de Oliveira. "Physical quality of a Luvisol under agroforestry systems in a semi-arid region, Brazil." Soil Research 54, no. 4 (2016): 430. http://dx.doi.org/10.1071/sr15179.

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Agroforestry systems provide many environmental benefits in semi-arid regions; however, trampling by cattle, and agricultural practices, can degrade physical quality of the soil. The aim of this study was to evaluate the degree of compaction and the compression behaviour of a Luvisol after 14 years under agro-silvopastoral (ASP) and silvopastoral systems (SILV), compared with a soil under natural vegetation (NV). We evaluated the degree of soil compactness, compaction index, pre-consolidation pressure, maximum bulk density, critical water content and the stocks of total organic carbon (C), org
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12

Sarkar, Sukamal, Anannya Dhar, Saikat Dey, et al. "Natural and Organic Input-Based Integrated Nutrient-Management Practices Enhance the Productivity and Soil Quality Index of Rice–Mustard–Green Gram Cropping System." Land 13, no. 11 (2024): 1933. http://dx.doi.org/10.3390/land13111933.

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The effects of integrated nutrient-management (INM) practices on soil quality are essential for sustaining agro-ecosystem productivity. The soil quality index (SQI) serves as a tool to assess the physical, chemical, and biological potential of soils as influenced by various edaphic and agronomic practices. A multiyear (2018–2021) field experiment was performed at the University Organic Research Farm, Narendrapur, West Bengal, India, to investigate the influence of integrated and sole applications of different conventional fertilizers, organic (e.g., vermicompost), and natural farming inputs (e
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13

Qalbi, Andria Harfani, Suria Darma Tarigan, Baba Barus, and Untung Sudadi. "Short-term natural restoration effects on groundwater table in several peatland conditions of Acacia plantation forests." Journal of Degraded and Mining Lands Management 12, no. 4 (2025): 8191–99. https://doi.org/10.15243/jdmlm.2025.124.8191.

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One significant approach to restore the ecosystem function of degraded peatlands is natural restoration. This study evaluated the effect of short-term natural restoration on groundwater table in several peatland conditions in the Acacia plantation retired since 2016. Four types of land: burned land, Acacia post-harvest land, retired Acacia plantation forest, and the natural forest were considered as our study area. This study analyzed soil properties and remote sensing using the NDVI index to evaluate vegetation density in 2016, 2019, and 2022. This study found that natural restoration in the
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14

Lopes, Giovana Tetsuya, Jean Sérgio Rosset, Jefferson Matheus Barros Ozório, et al. "Influence of land use and occupation on the chemical and physical fractions of organic matter in cultivated and native areas in the Atlantic Forest biome." Ambiente e Agua - An Interdisciplinary Journal of Applied Science 17, no. 5 (2022): 1–21. http://dx.doi.org/10.4136/ambi-agua.2814.

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This study quantified the C content of the chemical and physical fractions of SOM in different management systems in an Argisoil of sandy texture. The study was carried out in a reference area of Native Forest (NF), and in three managed areas: Permanent Pasture (PP), No-Tillage System (NTS) and an area of Private Natural Heritage Reserve (PNHR) in the process of natural regeneration. Soil samples were collected in the layers 0.0-0.05, 0.05-0.10 and 0.10-0.20 m. We assessed the soil density (Sd), total organic carbon (TOC) content, chemical fractionation of SOM with determination of the C conte
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15

Lyu, Qian, Jiangli Liu, Junjie Liu, et al. "Response of plant diversity and soil physicochemical properties to different gap sizes in a Pinus massoniana plantation." PeerJ 9 (September 21, 2021): e12222. http://dx.doi.org/10.7717/peerj.12222.

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As one means of close-to-nature management, forest gaps have an important impact on the ecological service function of plantations. To improve the current situation of P. massoniana plantations, three different sizes of forest gaps (large gaps, medium gaps and small gaps) were established to observe whether gap setting can improve the soil fertility and plant diversity of forest plantations. The results showed that compared with the control, the soil organic matter content of different soil layers increased significantly in the medium forest gap and large forest gap. The content of soil organi
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16

Blouin, V. M., M. G. Schmidt, C. E. Bulmer, and M. Krzic. "Mechanical disturbance impacts on soil properties and lodgepole pine growth in British Columbia’s central interior." Canadian Journal of Soil Science 85, no. 5 (2005): 681–91. http://dx.doi.org/10.4141/s04-077.

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Forest landings are areas located adjacent to haul roads where harvested trees that were skidded from the cutblock are processed and loaded onto trucks. Soils on landings are often excessively compacted by heavy timber harvesting machinery and may take many years to recover from such disturbance. This study examined soil properties and tree growth on unrehabilitated landings (with and without natural regeneration) and adjacent naturally regenerated clearcuts in the central interior of British Columbia (BC), 23 yr after landing construction. Landings (both with and without natural regeneration)
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17

Xing, Yunfei, Jianjun Shi, Yuan Ma, et al. "Keystone Species and Driving Factors of Artificial Grassland on the Qinghai–Tibetan Plateau, China." Diversity 16, no. 12 (2024): 758. https://doi.org/10.3390/d16120758.

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In order to investigate the characteristics and driving factors of keystone species change in vegetation communities, we conducted a network analysis to analyze the complexity of grassland plant communities and keystone species. We conducted a study with six plots of degraded grassland, intact grassland, and various ages of artificial grassland. We systematically analyzed the characteristics of vegetation community and soil physical–chemical properties under different treatments. Our findings revealed that the 5-year-old artificial grassland exhibited lower biodiversity, as indicated by a Shan
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18

Masto, R. E., S. Sheik, G. Nehru, V. A. Selvi, J. George, and L. C. Ram. "Environmental soil quality index and indicators for a coal mining soil." Solid Earth Discussions 7, no. 1 (2015): 617–38. http://dx.doi.org/10.5194/sed-7-617-2015.

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Abstract. Assessment of soil quality is one of the key parameters for evaluation of environmental contamination in the mining ecosystem. To investigate the effect of coal mining on soil quality, opencast and underground mining sites were selected in the Raniganj Coafield area, India. The physical, chemical, biological parameters, heavy metals, and PAHs contents of the soils were evaluated. Soil dehydrogenase (+79%) and fluorescein (+32%) activities were significantly higher in underground mine (UGM) soil, whereas peroxidase activity (+57%) was higher in opencast mine (OCM) soil. Content of As,
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19

Zhao, Yan, Muxin Zhao, Lele Qi, et al. "Coupled Relationship between Soil Physicochemical Properties and Plant Diversity in the Process of Vegetation Restoration." Forests 13, no. 5 (2022): 648. http://dx.doi.org/10.3390/f13050648.

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An in-depth exploration of plant–soil interactions can improve our knowledge of the succession and evolution of forest ecosystems. To understand the coupling relationship between species diversity and soil physicochemical properties in natural secondary forests during the process of vegetation restoration, the species diversity of trees, shrubs and herbs and the physicochemical properties of soil at different depths were investigated in six forest communities in the Qinling Huoditang area over two years (2013 and 2019). The analysis indicated that the soil nutrient content in the region decrea
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20

Ogunwole, Joshua Olalekan, Luiz Fernando Pires, and Bello Muhammed Shehu. "Changes in the Structure of a Nigerian Soil under Different Land Management Practices." Revista Brasileira de Ciência do Solo 39, no. 3 (2015): 830–40. http://dx.doi.org/10.1590/01000683rbcs20140017.

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Quantification of soil physical quality (SPQ) and pore size distribution (PSD) can assist understanding of how changes in land management practices influence dynamics of soil structure, and this understanding could greatly improve the predictability of soil physical behavior and crop yield. The objectives of this study were to measure the SPQ index under two different land management practices (the continuous arable cropping system and natural bush fallow system), and contrast the effects of these practices on the structure of PSD using soil water retention data. Soil water retention curves ob
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21

Maira, Alejandra Barriga-Vélez, Carolina Ramírez-Vargas Laura, Anne López Barrera Ellie, and Arturo Peña-Rincón Carlos. "Potential ecological risk index for metals in a grazing area, Guasca, Cundinamarca." Revista Facultad de Ingeniería, Universidad de Antioquia, no. 106 (April 6, 2021): 103–12. https://doi.org/10.17533/udea.redin.20210422.

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The presence of metals in soils used for primary economic activities can negatively impact the environment and public health. This research identified soil contamination by heavy metals (Lead, Copper, Zinc, and Manganese) by examining physical and chemical properties (Phosphorus, Potassium, organic carbon, cation exchange capacity, pH, texture, and bulk density) of the area during the dry and rainy seasons of 2017. Composite samplings of soil were carried out in both seasons, in order to obtain a representative value of the soil in certified laboratories. Thereafter, through interpolation by m
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22

Portella, Cibele Mascioli Rebello, Maria de Fátima Guimarães, Christian Feller, Inês Cristina de Batista Fonseca, and João Tavares Filho. "Soil aggregation under different management systems." Revista Brasileira de Ciência do Solo 36, no. 6 (2012): 1868–77. http://dx.doi.org/10.1590/s0100-06832012000600021.

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Considering that the soil aggregation reflects the interaction of chemical, physical and biological soil factors, the aim of this study was evaluate alterations in aggregation, in an Oxisol under no-tillage (NT) and conventional tillage (CT), since over 20 years, using as reference a native forest soil in natural state. After analysis of the soil profile (cultural profile) in areas under forest management, samples were collected from the layers 0-5, 5-10, 10-20 and 20-40 cm, with six repetitions. These samples were analyzed for the aggregate stability index (ASI), mean weighted diameter (MWD),
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23

Xu, Yaozhan, Han Y. H. Chen, Zhiqiang Xiao, et al. "Species Richness Promotes Productivity through Tree Crown Spatial Complementarity in a Species-Rich Natural Forest." Forests 13, no. 10 (2022): 1604. http://dx.doi.org/10.3390/f13101604.

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Ecological theory suggests that species with complementary architectural and physiological traits can optimize crown packing to improve resource efficiency and promote ecosystem productivity in forest communities. However, empirical evidence of this prediction is rare in species-rich natural forests, as little is known about how crown spatial complementarity regulates community species richness-productivity relationship (SRPR). In this study, we measured tree architectural traits (stem diameter, height, crown depth and width) for 11,337 trees, and quantified species richness, functional divers
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24

Li, Jingsong, Ce Yang, Tabassum Hussain, Xiaohui Feng, Xiaojing Liu, and Kai Guo. "Long-Term Effect of Tamarisk Plantation on Soil Physical Properties and Soil Salt Distribution in Coastal Saline Land." Agronomy 12, no. 8 (2022): 1947. http://dx.doi.org/10.3390/agronomy12081947.

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Ecological restoration of coastal land by planting salt-tolerant plants has been widely used to construct vegetation. The aim of this study was to evaluate the changes induced by tamarisk (Tamarix chinensis) shrub on coastal soil physical quality and as well as the corresponding impact on salt distribution in the soil. A field study was conducted on coastal saline land, North China, where tamarisk plantation was established 5-year-old (T-5yr) and 11-year-old (T-11yr), and compared with barren land as control (CK). Quantitative soil physical properties, soil physical quality index, soil salt di
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25

Ferreira, Ruan L. S., Mauricéia Medeiros, Jéssyca E. S. Pereira, et al. "Effects of Particle Size Distribution of Standard Sands on the Physical-Mechanical Properties of Mortars." Materials 16, no. 2 (2023): 844. http://dx.doi.org/10.3390/ma16020844.

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Obtained natural sands can present different particle size distributions (PSD), although they have the same mineralogical origin. These differences directly influence the physical and mechanical behavior of mortars and, therefore, the performance of mortar and ceramic renderings. Standardizing the particle size of sands based on pre-established requirements in normative standards (NBR 7214 or ASTM C778) is one way to minimize these effects. However, these standards do not consider the optimization of the granular skeleton through the analysis of bulk density and PSD, which may be insufficient
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26

Mehammednur Seid, Nurhussen, Birru Yitaferu, Kibebew Kibret, and Feras Ziadat. "Soil-Landscape Modeling and Remote Sensing to Provide Spatial Representation of Soil Attributes for an Ethiopian Watershed." Applied and Environmental Soil Science 2013 (2013): 1–11. http://dx.doi.org/10.1155/2013/798094.

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Information about the spatial distribution of soil properties is necessary for natural resources modeling; however, the cost of soil surveys limits the development of high-resolution soil maps. The objective of this study was to provide an approach for predicting soil attributes. Topographic attributes and the normalized difference vegetation index (NDVI) were used to provide information about the spatial distribution of soil properties using clustering and statistical techniques for the 56 km2Gumara-Maksegnit watershed in Ethiopia. Multiple linear regression models implemented within classifi
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27

Güler, Sümeyye, and Bülent Turgut. "Assessing Soil Degradation: A Comprehensive Study Using Soil Degradation Index (SDI) in Godrahav Watershed." Research in Agricultural Sciences 56, no. 2 (2025): 141–54. https://doi.org/10.17097/agricultureatauni.1667680.

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Soil degradation is an important problem for watersheds that contain agricultural and natural areas within their border. This study was conducted to assess soil degradation using soil degradation index (SDI). The watershed was divided into transects at 500m intervals in the north-south and the east-west directions. Except for the hard-to-reach points because of topography, disturbed and undisturbed soil samples were taken from 138 sample points at the intersections of the transects. The SDI was calculated using the measured soil parameters including particle size distribution, aggregate stabil
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28

Abdelrahman, Noudar A., Makeen A. Makeen, Elgailani A. Abdalla, Feisal M. Ismaeil, Salah Eldeen E. Ahmed, and Aisha A. Adam. "Effects of Urea and Goat Organic Manure on Growth and Yield of Sorghum (Sorghum bicolor L.) Under Rain Fed Sandy Soil of North Kordofan State, Sudan." British Journal of Earth Sciences Research 13, no. 1 (2025): 22–32. https://doi.org/10.37745/bjesr.2013/vol13n12232.

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This study was carried out at the premises of Faculty of Natural Resources and Environmental Studies, demonstration farm, in Sheikan locality, North Kordofan state during two consecutive rainy seasons 2021- 2022, 2022-2023. The study was aimed at evaluating the effects of urea and goat organic manure fertilizers on growth and yield of sorghum (Sorghum bicolor L.) and some soil physical properties. The experiment consisted of four treatments (Control, 2 ton goat organic manure \ feddan, 2 ton goat organic manure / feddan + 40 kg urea / feddan and 2 ton goat organic manure / feddan + 80 kg urea
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29

Basnet, Manisha, Tika Regmi, Man Kumar Dhamala, and Shankar Adhikari. "Effects of Grazing in Natural Regeneration at Tree Line region in Lamtang National Park, Nepal." Journal of Environment Sciences 10 (July 4, 2024): 79–91. http://dx.doi.org/10.3126/jes.v10i1.66974.

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Livestock grazing in the form of transhumance activities is common practices in the mountainous region of Nepal. Such grazing activities can impact on natural regeneration of tree species. Being grazing practices as major occupation, not enough research has been carried out on impacts of grazing and management of grazing area in Nepal. This study was conducted with an aim to assess the effects of grazing in natural regeneration in tree line region of Lamtang National Park (LNP). Transect method was carried out for study after identifying different grazing intensities in field. Data were analyz
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30

Chowdhury, Abhiroop, Aliya Naz, and Subodh Kumar Maiti. "Variations in Soil Blue Carbon Sequestration between Natural Mangrove Metapopulations and a Mixed Mangrove Plantation: A Case Study from the World’s Largest Contiguous Mangrove Forest." Life 13, no. 2 (2023): 271. http://dx.doi.org/10.3390/life13020271.

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Sundarban is the world’s largest mangrove wetland. This study, conducted in 2016, to compare blue carbon sequestration with different natural metapopulations and a four-year-old Avicennia marina (30% area)-Rhizophora mucronata (70% area)-mixed mangrove plantation under anthropoganic stress. The aims of the study is to find out the variations in soil ecological function indicators (pH, electrical conductivity, bulk density, soil texture, available nitrogn, phosphorus and soil organic carbon) and key ecological service indicator (soil blue carbon pool) between sites. Simpson’s Index of dominance
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31

Zhu, Baoguo, Chunfeng Zheng, Huibin Jia, et al. "Effects of drip irrigation on spring soybean (Glycine max (L.) Merr.) growth and soil physical indexes of Heilongjiang province of China." Bangladesh Journal of Botany 48, no. 1 (2019): 95–103. http://dx.doi.org/10.3329/bjb.v48i1.47420.

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Effects of different drip irrigation on the growth, development and yield of spring soybean was carried out by measuring the growth index and soil physical characteristics index of spring soybean (Glycine max (L.) Merr.). On the basis of natural precipitation in the same year, 4 drip irrigation levels, namely W1 (0 mm), W2 (200 mm), W3 (400 mm) and W4 (600 mm) were established. From flowering to the pod stage of soybean, a significant increase in the soil moisture and a reduction in the soil hardness and bulk density were observed. Though the difference between W3 and W4 was not significant, d
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32

Pereira, Nayana Alves, João Carlos Medeiros, Julian Júnio de Jesus Lacerda, et al. "Soil Physical Attributes Under Eucalyptus stands With Non-living and Living Plants." Journal of Agricultural Science 11, no. 3 (2019): 197. http://dx.doi.org/10.5539/jas.v11n3p197.

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The conservation of ecosystems has benefited from planted forests which provide reforested wood reducing the pressure on deforestation of natural forests. Soil physical attributes determine soil water storage capacity; therefore, they play an important role on plant roots&amp;rsquo; development which may compromise plant&amp;rsquo;s survival. The study tested the influence of soil physical and water attributes on the survival of Eucalyptus spp. clones under dry tropical climate. Two areas were selected, including one with living plants and a second with non-living plants of Eucalyptus spp. clo
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Tavankar, Farzam, Rodolfo Picchio, Mehrdad Nikooy, et al. "Soil Natural Recovery Process and Fagus orientalis Lipsky Seedling Growth after Timber Extraction by Wheeled Skidder." Land 10, no. 2 (2021): 113. http://dx.doi.org/10.3390/land10020113.

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The growth and quality of natural seedlings are important goals of forest management in uneven-aged high stands. In this study, the recovery process of the physical and chemical properties of soil, as well as growth variables of beech seedlings on the skid trails after skidding operations in three time periods (10, 20, and 30 years) were investigated in the Hyrcanian forests of Iran. Results revealed that the soil chemical properties (organic C, total N, and pH) were fully recovered after 20 years, while soil physical properties (bulk density, porosity, and penetration resistance) were not yet
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Yang, Xiaorong, Rouzi-Guli Turmuhan, Lina Wang, Jiali Li, and Long Wan. "Five Years of Natural Vegetation Recovery in Three Forests of Karst Graben Area and Its Effects on Plant Diversity and Soil Properties." Forests 16, no. 1 (2025): 91. https://doi.org/10.3390/f16010091.

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In recent decades, excessive human activities have led to large-scale rocky desertification in karst areas. Vegetation restoration is one of the most important ways to control rocky desertification. In this study, vegetation surveys were conducted on three typical plantations in Jianshui County, Yunnan Province, a typical karst fault basin area, in 2016 and 2021. The plantations were Pinus massoniana forest (PM), Pinus yunnanensis forest (PY), and mixed forests of Pinus yunnanensis and Quercus variabilis (MF). Plant diversity and soil nutrients were compared during the five-year period. This p
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35

Mishra, Gaurav, and Jesús Rodrigo-Comino. "The impact of traditional land use management on soil quality in Northeastern Himalayas (India)." Geographia Polonica 94, no. 1 (2021): 91–109. http://dx.doi.org/10.7163/gpol.0195.

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n the Northeast Himalayas (NEH) region, four major conventional land-use types are forest, Jhum lands, fallow Jhum lands and plantations, but little is known about their sustainability and responses to changes. We collected soil samples at two uniform depths (0-15 and 15-30 cm) from the Zunheboto district of Nagaland (India). The dataset was statistically analyzed by conducting an ANOVA-one way, principal component analysis (PCA) and calculating an additive soil quality index (SQIa). Our results confirmed that sand content, bulk density (BD), porosity, soil organic carbon (SOC), cation exchang
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Amaral, Luise Andrade, Israel Marinho Pereira, Michele Aparecida Pereira da Silva, Marcio Leles Romarco de Oliveira, Evandro Luiz Mendonça Machado, and Marcelo Luiz de Laia. "Use of topsoil for restoration of a degraded pasture área." Pesquisa Agropecuária Brasileira 52, no. 11 (2017): 1080–90. http://dx.doi.org/10.1590/s0100-204x2017001100014.

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Abstract: The objective of this work was to evaluate the influence of topsoil thickness, shading and origin when performing environmental restoration in a degraded pasture area. The experiment was conducted in a randomized block design with a factorial (3 x 2 x 2) + 2 layout. Treatments consisted of combinations of topsoil origins (forest at early or middle regeneration stages), topsoil thicknesses (10, 20, or 30-cm superficial soil layer), and presence or absence of 70% shading; with two additional control treatments. Surveys on topsoil physical-chemical attributes and flora and soil coverage
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Alcântara, Laiza Coelho de, Jean Sérgio Rosset, Isabela Neves, et al. "Effect of soil management on carbon stock and soil aggregation in an area of natural regeneration and surrounding systems in the Atlantic Forest biome." Ambiente e Agua - An Interdisciplinary Journal of Applied Science 19 (July 12, 2024): 1–22. http://dx.doi.org/10.4136/ambi-agua.2987.

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This study aimed to quantify total organic carbon (TOC), carbon of humic substances (HS), and their stocks and evaluate the soil structural stability of areas with different uses under sandy loam soil texture. Soil samples were collected from managed areas and a reference area: Permanent Pasture (PP), No-Till (NT), Private Natural Heritage Reserve in the process of natural regeneration (PNHR) and Native Forest (FN). Dry mass analysis, carbon stock quantification, chemical fractionation of soil organic matter and soil aggregation were carried out. The NF area had the highest deposition of litte
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Parron, Lucilia M., Ricardo Trippia dos G. Peixoto, Krisle da Silva, and George G. Brown. "Traditional Yerba Mate Agroforestry Systems in Araucaria Forest in Southern Brazil Improve the Provisioning of Soil Ecosystem Services." Conservation 4, no. 1 (2024): 115–38. http://dx.doi.org/10.3390/conservation4010009.

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Soils are a source of natural capital that provide and regulate a range of ecosystem services (ES) and play an important role in sustaining human welfare. Nonetheless, the quality and quantity of soil ecosystem services (SES) delivery over the long term depend on the use of sustainable land management practices. In the present study, we assessed seven SES using a set of soil quality indicators in four production systems based on yerba mate (Ilex paraguariensis A. St.-Hil) in the Araucaria Forest biome of Southern Brazil: two sites were under traditional agroecological agroforestry management,
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Lisec, Urška, Maja Prevolnik Povše, Miran Podvršnik, and Branko Kramberger. "Impact of Grassland Management System Intensity on Composition of Functional Groups and Soil Chemical Properties in Semi-Natural Grasslands." Plants 14, no. 15 (2025): 2274. https://doi.org/10.3390/plants14152274.

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Semi-natural grasslands are some of the most species-rich habitats in Europe and provide important ecosystem services such as biodiversity conservation, carbon sequestration and soil fertility maintenance. This study investigates how different intensities of grassland management affect the composition of functional groups and soil chemical properties. Five grassland management systems were analyzed: Cut3—three cuts per year; LGI—low grazing intensity; CG—combined cutting and grazing; Cut4—four cuts per year; and HGI—high grazing intensity. The functional groups assessed were grasses, legumes a
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Sun, Yunpeng, Xin Zhang, Jingtian Xian, et al. "Saline–Alkaline Characteristics during Desalination Process and Nitrogen Input Regulation in Reclaimed Tidal Flat Soils." Sustainability 15, no. 5 (2023): 4378. http://dx.doi.org/10.3390/su15054378.

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Coastal salt-affected soils account for a large area all around the world. Soil salinity and pH are two important parameters affecting soil quality. Investigating the correlation of electrical conductivity (EC) and pH at different soil depths in saline soil was useful for quickly assessing the saline–alkaline characteristics. During the natural desalination process in the field area of reclaimed lands, the phenomena of pH increase and nitrogen accumulation may occur. A field sampling experiment was conducted in slightly saline soil affected by natural desalination and newly reclaimed heavily s
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Yeo, Joseph G., Julien K. N'Dri, Ettien F. Edoukou, and Jean-Luc D. S. Ahui. "Changes in surface soil properties and macroinvertebrate communities with the conversion of secondary forests to oil palm (Elaeis guineensis) plantations." Crop and Pasture Science 71, no. 9 (2020): 837. http://dx.doi.org/10.1071/cp19370.

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The conversion of natural forest to oil palm (Elaeis guineensis Jacq.) plantation is perceived as a threat to biodiversity conservation. The aims of this investigation were to assess variation in soil physico-chemical parameters and macroinvertebrate structures following the conversion of secondary forests to oil palm plantations, and to understand what to expect with the aging of the plantations. We hypothesised that soil properties would be improved with respect to biodiversity conservation with the aging of the oil palm plantations. Sampling was carried out in secondary forests, and in 13-,
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Albalasmeh, Ammar A., Ma’in Z. Alghzawi, Mamoun A. Gharaibeh, and Osama Mohawesh. "Assessment of the Effect of Irrigation with Treated Wastewater on Soil Properties and on the Performance of Infiltration Models." Water 14, no. 9 (2022): 1520. http://dx.doi.org/10.3390/w14091520.

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An alternative strategy for saving limited water resources is using treated wastewater (TWW) originating from wastewater treatment plants. However, using TWW can influence soil properties owing to its characteristics compared to conventional water resources. Therefore, assessing the effect of TWW on soil properties and soil water infiltration is crucial to maintain sustainable use of TWW and to increase the water use efficiency of the precious irrigation water. Moreover, several studies were carried out to assess the performance of infiltration models. However, few studies evaluate infiltratio
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Marschalko, Marian, Işık Yilmaz, Lucie Fojtova, David Lamich, and Martin Bednarik. "Properties of the Loess Sediments in Ostrava Region (Czech Republic) and Comparison with Some Other Loess Sediments." Scientific World Journal 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/529431.

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This study deals with a methodical identification and evaluation of physical-mechanical properties of one genetic type of geological structure. This is represented by an engineering-geological zone of eolian sediments, which is regionally rather abundant. The paper contributes to a need to identify typical soil properties for widespread geological environments in a particular region and thus add to good engineering geologists and geotechnical engineers’ awareness in the region. Such information is much required as it permits comparing results of newly conducted engineering-geological investiga
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Silva, Fernanda De Fátima da, Onã Da Silva Freddi, José Frederico Centurion, Ricardo Garcia Aratani, Fabrícia Flávia Andrioli, and Itamar Andrioli. "PROPRIEDADES FÍSICAS DE UM LATOSSOLO VERMELHO CULTIVADO NO SISTEMA PLANTIO DIRETO." IRRIGA 13, no. 2 (2008): 191–204. http://dx.doi.org/10.15809/irriga.2008v13n2p191-204.

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PROPRIEDADES FÍSICAS DE UM LATOSSOLO VERMELHO CULTIVADO NO SISTEMA PLANTIO DIRETO Fernanda de Fátima da Silva; Onã da Silva Freddi; José Frederico Centurion; Ricardo Garcia Aratani; Fabricia Flavia Andrioli; Itamar Andrioli Departamento de Solos e Adubos, Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterináiras, Jaboticabal, São Paulo, ona_freddi@yahoo.com.br 1 RESUMO A pressão exercida pelo tráfego de máquinas necessário ao cultivo das culturas pode levar à compactação do solo com o tempo de uso do sistema plantio direto. O objetivo do trabalho foi avaliar o efeito do tem
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Masto, R. E., S. Sheik, G. Nehru, V. A. Selvi, J. George, and L. C. Ram. "Assessment of environmental soil quality around Sonepur Bazari mine of Raniganj coalfield, India." Solid Earth 6, no. 3 (2015): 811–21. http://dx.doi.org/10.5194/se-6-811-2015.

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Abstract. Assessment of soil quality is one of the key parameters for evaluation of environmental contamination in the mining ecosystem. To investigate the effect of coal mining on soil quality, opencast and underground mining sites were selected in the Raniganj coalfield area, India. The physical, chemical, and biological parameters of the soils, and trace metals and PAHs (polycyclic aromatic hydrocarbons) in the soils were evaluated. Soil dehydrogenase (+79 %) and fluorescein (+32 %) activities were significantly higher in underground mine (UGM) soil, whereas peroxidase activity (+57 %) was
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Liu, Qiang, Yue Sun, Gerong Wang, Fushan Cheng, and Fucai Xia. "Short-term effects of thinning on the understory natural environment of mixed broadleaf-conifer forest in Changbai Mountain area, Northeast China." PeerJ 7 (July 26, 2019): e7400. http://dx.doi.org/10.7717/peerj.7400.

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Background The understory natural environment is critical in affecting the succession and recovery process of vegetation, stand structure, and species composition of forest. The thinning intensity could significantly change the forest microclimates and soil properties, therefore, to analyze the effects of thinning intensity on the understory natural environment of forest is of important significance for promoting the ecological benefits of thinning. Methods A total of 16 fixed sample plots with different thinning intensities were established in the mixed broadleaf-conifer forest in Jiaohe, sit
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Tavankar, Farzam, Aezam Rezaee Kivi, Ramin Naghdi, Francesco Latterini, Rachele Venanzi, and Rodolfo Picchio. "Growth and Architectural Response of Beech Seedlings to Canopy Removal and Soil Compaction from Selective Logging." Sustainability 16, no. 14 (2024): 6162. http://dx.doi.org/10.3390/su16146162.

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Logging operations change the forest environment by creating a heterogeneous canopy with a range of different microenvironments that differ mostly in light intensity and level of soil disturbance. In this study, the growth characteristics and architecture of beech (Fagus orientalis Lipsky) seedlings grown in three different microenvironments in terms of canopy and soil conditions were investigated. The experimental treatments (microenvironments) included skid trail (removal of canopy and compacted soil), winching corridor (natural canopy and compacted soil), felling gap (removal of canopy and
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Abera, Wondwosen, and Mohammed Assen. "Dynamics of Selected Soil Quality Indicators in Response to Land Use/Cover and Elevation Variations in Wanka Watershed, Northwestern Ethiopian Highlands." Ekológia (Bratislava) 38, no. 2 (2019): 126–39. http://dx.doi.org/10.2478/eko-2019-0010.

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AbstractSoil quality (SQ) dynamics assessment vis-à-vis land use/land cover (LULC) and elevation variations in Ethiopia is desirable as elevation impact on land use is highly pronounced. This study examined SQ indicators dynamics across LULC and elevation variations. For this, surface soil samples (0−20 cm) were collected from the recognized LULC categories of different elevations in Wanka watershed, northwestern Ethiopian highlands. Both disturbed and undisturbed soil samples that were taken from three adjacent LULC (natural forest, grazing and cultivated lands) and elevation (2238–2300, 2400
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Kozłowski, Michał, Krzysztof Otremba, Marek Pająk, and Marcin Pietrzykowski. "Changes in Physical and Water Retention Properties of Technosols by Agricultural Reclamation with Wheat–Rapeseed Rotation in a Post-Mining Area of Central Poland." Sustainability 15, no. 9 (2023): 7131. http://dx.doi.org/10.3390/su15097131.

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During opencast lignite mining, the natural landscape is damaged, along with soils, and new anthropogenic landforms are created which require reclamation. Usually, the evaluation of the effects of reclamation (mostly forestry) is concerned with changes in chemical properties in the first years, mainly in the surface horizon. This study analyzed the effect of long-term agricultural reclamation (43 years) on the physical and water retention properties of Technosols. The experiment involved cultivation of winter wheat and winter oilseed rape under 3 fertilization variants. After 43 years, an Ap h
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Béland, Martin, and Yves Bergeron. "Height growth of jack pine (Pinushanksiana) in relation to site types in boreal forests of Abitibi, Quebec." Canadian Journal of Forest Research 26, no. 12 (1996): 2170–79. http://dx.doi.org/10.1139/x26-246.

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A combination of surface deposit and moisture regime class was used to investigate the utility of site type as a predictor of jack pine growth in northwestern Quebec. Height–age curves produced from stem analyses of dominant trees from 96 sample plots produced three jack pine (Pinusbanksiaina Lamb.) productivity classes. The low productivity class includes moderately dry shallow tills, shallow organic deposits over bedrock, and fluvioglacial sands with moisture regime classes moderately dry and fresh. Moderately dry to very moist deep tills and moderately dry to moist clays are classified as h
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