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Journal articles on the topic 'Forests productivity'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Moreno, Adam, Mathias Neumann, Phillip M. Mohebalian, Christopher Thurnher, and Hubert Hasenauer. "The Continental Impact of European Forest Conservation Policy and Management on Productivity Stability." Remote Sensing 11, no. 1 (2019): 87. http://dx.doi.org/10.3390/rs11010087.

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The ecological impact of continental scale land-use policies that influence forest management is often difficult to quantify. European forest conservation began in 1909 with a marked increase in designated areas with the inception of Natura 2000 in the early 1990s. It has been shown that increases in European forest mortality may be linked to climate variability. Measuring productivity response to climate variability may be a valid proxy indicating a forest’s ability to bear this disturbance. Net Primary Production (NPP) response to climate variability has also been linked to functional divers

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Safe'i, Rahmat, Christine Wulandari, and Hari Kaskoyo. "Assessment of Forest Health in Various Forest Types in Lampung Province." Jurnal Sylva Lestari 7, no. 1 (2019): 95. http://dx.doi.org/10.23960/jsl1795-109.

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In Lampung Province, awareness of the importance of forest health in achieving sustainable forest management in various types of forests is still low so that forest health problems have not received serious attention so far. This study aims to obtain indicators of forest health assessment and the status of forest health conditions in various types of forests in Lampung Province. This research was carried out in mangrove and community forests in East Lampung District, and protected and conservation forests in Tanggamus District in 2018. The stages of this study consisted of formulating guarante

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Rochmah, Siti Fauzia, Rahmat Safe’i, Afif Bintoro, and Hari Kaskoyo. "ANALISIS PRODUKTIVITAS SEBAGAI SALAH SATU INDIKATOR KESEHATAN HUTAN (Studi Kasus Pada Hutan Rakyat Jati di Kecamatan Natar Kabupaten Lampung Selatan Provinsi Lampung)." JURNAL HUTAN PULAU-PULAU KECIL 4, no. 2 (2020): 204–15. http://dx.doi.org/10.30598/jhppk.2020.4.2.204.

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Currently, community forests are increasingly showing an important role in meeting the timber demand for the timber industry. This can be seen from the log production which continues to decline every year. The reduced supply of wood from natural and plantation forests is one of the reasons why community forests are used as an alternative to meet the demand for industrial wood raw materials. This study aims to determine the parameter value of productivity indicators and health status of jati community forests in Natar District. To achieve this, the stages include: determining the number of plot

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Absalyamov, R. R., D. A. Pozdeev, S. L. Absalyamova, M. V. Yakimov, and M. N. Starkov. "Birch forests productivity in Udmurt Republic." FORESTRY BULLETIN 24, no. 6 (2020): 12–18. http://dx.doi.org/10.18698/2542-1468-2020-6-12-18.

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The results of research on the productivity of birch stands on the territory of the Udmurt Republic belonging to the region of southern taiga forests of the European part of the Russian Federation, the taiga zone are presented. The dynamics of the area and reserves of birch forests in the Udmurt Republic is analyzed. Based on the sample area data, changes in the percentage of business wood yield were revealed depending on the type of forest, the composition coefficient and the age of the forest element stand. A comparison of birch stocks growing in different types of forests is made.

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Park, Juhan, Hyun Seok Kim, Hyun Kook Jo, and II Bin Jung. "The Influence of Tree Structural and Species Diversity on Temperate Forest Productivity and Stability in Korea." Forests 10, no. 12 (2019): 1113. http://dx.doi.org/10.3390/f10121113.

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Research Highlights: Using a long-term dataset on temperate forests in South Korea, we established the interrelationships between tree species and structural diversity and forest productivity and stability, and identified a strong, positive effect of structural diversity, rather than tree species diversity, on productivity and stability. Background and Objectives: Globally, species diversity is positively related with forest productivity. However, temperate forests often show a negative or neutral relationship. In those forests, structural diversity, instead of tree species diversity, could co

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Wagner, Fabien H., Bruno Hérault, Damien Bonal, et al. "Climate seasonality limits leaf carbon assimilation and wood productivity in tropical forests." Biogeosciences 13, no. 8 (2016): 2537–62. http://dx.doi.org/10.5194/bg-13-2537-2016.

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Abstract. The seasonal climate drivers of the carbon cycle in tropical forests remain poorly known, although these forests account for more carbon assimilation and storage than any other terrestrial ecosystem. Based on a unique combination of seasonal pan-tropical data sets from 89 experimental sites (68 include aboveground wood productivity measurements and 35 litter productivity measurements), their associated canopy photosynthetic capacity (enhanced vegetation index, EVI) and climate, we ask how carbon assimilation and aboveground allocation are related to climate seasonality in tropical fo

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Xu, Wei, Ping Zhou, Miguel Ángel González-Rodríguez, Zhaowei Tan, Zehua Li, and Ping Yan. "Changes in Relationship between Forest Biomass Productivity and Biodiversity of Different Type Subtropical Forests in Southern China." Forests 15, no. 3 (2024): 410. http://dx.doi.org/10.3390/f15030410.

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Forest productivity is influenced by various factors, including biodiversity, environmental factors, functional traits, and forest types. However, the relative importance of these factors in determining the productivity of subtropical forests in southern China remains controversial. In this study, we analyzed a dataset of 24 forest plots from four subtropical forest types in the Nanling Mountains with the main goal of identifying and quantifying the relative contribution of the main driving factors of forest productivity in these forests. Generalized linear regression and structural equation m

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Wen, Zhiliang, Zhen Zhou, Xiting Wei, Deli Xiao, Liliang Xu, and Wei Wan. "Spatio-Temporal Simulation of the Productivity of Four Typical Subtropical Forests: A Case Study of the Ganjiang River Basin in China." Forests 16, no. 4 (2025): 603. https://doi.org/10.3390/f16040603.

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As an important component of the global carbon cycle, the variation patterns and driving mechanisms of the productivity and carbon sink capacity of subtropical forest ecosystems urgently need in-depth research. In this study, taking the forest ecosystem in the Ganjiang River Basin as the research object, the Biome-BGC model was used to simulate the forest productivity at different time scales (annual, seasonal, and monthly) from 1970 to 2021, and its spatio-temporal distribution characteristics and responses to climate change were analyzed. The results showed that the interannual net primary p

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9

Abaturov, B. D. "Comparative productivity of forest and grass ecosystems." Вестник Российской академии наук 93, no. 2 (2023): 162–70. http://dx.doi.org/10.31857/s0869587323020020.

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Among the land-dominated natural formations, like forests and grasslands, the attention of humanity is drawn at present primarily to the former. It is the forests of temperate and tropical zones that are supposed to play an important role in the regulation of biosphere processes on Earth, including the current climate. This almost completely ignores the importance of herbaceous systems widely represented by steppes and meadows. The overwhelming superiority of forests over grass ecosystems in productivity and phytomass stock is recognized. A comparative analysis of production estimates (t/ha/ye

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Bahtiar, La Ode. "Implementation of the Industrial Plantation Forest Development Policy to Increase the Productivity of Industrial Plantation Forests in North Gorontalo Regency." Jurnal Ekonomi Manajemen, Ilmu Sosial dan Politik 1, no. 2 (2024): 91–100. http://dx.doi.org/10.69623/j-emspol.v1i2.10.

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The aim of this research is to find out how development policies are implemented industrial plantation forests in increasing the productivity of industrial plantation forests in North Gorontalo Regency; what factors hinder the implementation of development policies industrial plantation forests in increasing the productivity of industrial plantation forests in North Gorontalo Regency. This type of research is descriptive with a qualitative approach, where primary data is obtained from interviews and research observations. The main instrument in the research is to see to what extent the impleme

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Vais, A. A., A. A. Andronova, V. V. Popova, S. K. Mamedova, P. A. Zaykova, and S. A. Chanchikova. "Dynamics of carbon productivity of pine stands according to growth tables." IOP Conference Series: Earth and Environmental Science 981, no. 3 (2022): 032084. http://dx.doi.org/10.1088/1755-1315/981/3/032084.

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Abstract Nowadays, there is a lack of information on organic carbon stocks in forest stands of various ages. To assess the biological productivity, sketches of growth tables (GT) of various types (“normal”, “modal”, “typological”) were used, drawn up in relation to the pine forests of Karaulny forestry of the educational and experimental forestry enterprise of Reshetnev Siberian State University of Science and Technology. The research area is located in the suburban area of Krasnoyarsk. Depending on the forest density, quality of growing conditions and age, pine forests accumulate different am

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Zhang, Jing, Jinman Zhao, Ruiming Cheng, Zhaoxuan Ge, and Zhidong Zhang. "Effects of Neighborhood Competition and Stand Structure on the Productivity of Pure and Mixed Larix principis-rupprechtii Forests." Forests 13, no. 8 (2022): 1318. http://dx.doi.org/10.3390/f13081318.

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Understanding the factors influencing tree productivity is central to forest ecology. However, the relative contributions of neighborhood interactions, tree species diversity, and tree size to larch (Larix principis-rupprechtii) productivity require further study. Three plots in the Guandi Mountains, Shanxi Province, were set up for each of the following forest types: natural pure larch forest (PL), mixed larch and birch (Betula platyphylla) forest (LB), and mixed larch and spruce (Picea asperata) forest (LS). Based on the tree size-stratified sampling method, a total of 318 tree core samples

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Cao, Lanfang, Cheng Jiang, Qiqi Xiao, et al. "Forestry Subsidies, Forestry Regulatory Policies, and Total Factor Productivity in Forestry—Plot-Scale Micro-Survey Data from A Heterogeneous Forest Types Perspective." Forests 15, no. 4 (2024): 692. http://dx.doi.org/10.3390/f15040692.

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Enhancing the total factor productivity in forestry is an important part of deepening the reform of the collective forest rights system. Based on the survey data of 295 forest plots in 12 towns of Liuyang City, Hunan Province, China, the study utilized a three-stage DEA model to assess the total factor productivity of forestry at the plot level. The empirical study employs Tobit and fractional regression models to investigate the effects and differences of forestry subsidies and forestry regulatory policies on the heterogeneous total factor productivity of different types of forests. The study

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14

Jactel, H., E. S. Gritti, L. Drössler, et al. "Positive biodiversity–productivity relationships in forests: climate matters." Biology Letters 14, no. 4 (2018): 20170747. http://dx.doi.org/10.1098/rsbl.2017.0747.

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While it is widely acknowledged that forest biodiversity contributes to climate change mitigation through improved carbon sequestration, conversely how climate affects tree species diversity–forest productivity relationships is still poorly understood. We combined the results of long-term experiments where forest mixtures and corresponding monocultures were compared on the same site to estimate the yield of mixed-species stands at a global scale, and its response to climatic factors. We found positive mixture effects on productivity using a meta-analysis of 126 case studies established at 60 s

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Zhou, Hua, Yang Luo, Guang Zhou, et al. "Exploring the Sensitivity of Subtropical Stand Aboveground Productivity to Local and Regional Climate Signals in South China." Forests 10, no. 1 (2019): 71. http://dx.doi.org/10.3390/f10010071.

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Subtropical forest productivity is significantly affected by both natural disturbances (local and regional climate changes) and anthropogenic activities (harvesting and planting). Monthly measures of forest aboveground productivity from natural forests (primary and secondary forests) and plantations (mixed and single-species forests) were developed to explore the sensitivity of subtropical mountain productivity to the fluctuating characteristics of climate change in South China, spanning the 35-year period from 1981 to 2015. Statistical analysis showed that climate regulation differed across d

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Davydova, Galina, Anastasia Biryukova, and Dmitry Litvin. "Features of the Development of the Forest Industry and Forestry in Russia and Abroad." Bulletin of Baikal State University 32, no. 2 (2022): 325–32. http://dx.doi.org/10.17150/2500-2759.2022.32(2).325-332.

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he decrease in the size of the world's forest area is a cause for concern. Therefore, it is necessary to study the dynamics of the world's forests and the reasons for deforestation. We used quantitative and qualitative data to evaluate the dynamics and trends in the growth of world forests. The study examined specifics of forest growth conditions around the globe over a thirty-year period employing statistical research methods. We analyzed the tendencies of changes in forest areas by continents and identified countries and continents with the largest increase and decrease in forest areas. Sinc

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Homeier, Jürgen, and Christoph Leuschner. "Factors controlling the productivity of tropical Andean forests: climate and soil are more important than tree diversity." Biogeosciences 18, no. 4 (2021): 1525–41. http://dx.doi.org/10.5194/bg-18-1525-2021.

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Abstract. Theory predicts positive effects of species richness on the productivity of plant communities through complementary resource use and facilitative interactions between species. Results from manipulative experiments with tropical tree species indicate a positive diversity–productivity relationship (DPR), but the existing evidence from natural forests is scarce and contradictory. We studied forest aboveground productivity in more than 80 humid tropical montane old-growth forests in two highly diverse Andean regions with large geological and topographic heterogeneity and related producti

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Heyderova, A., S. Abasova, R. Talisxanova, T. Babayeva, N. Zeynalova, and A. Orucova. "BASIC PRINCIPLES IN INCREASING THE PRODUCTIVITY OF FORESTS." Scientific heritage, no. 98 (October 5, 2022): 14–16. https://doi.org/10.5281/zenodo.7148231.

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Among the various natural resources of Azerbaijan, forests occupy the main place. The development of science and technology and the continuous growth of the national economy's need for firewood impose important requirements on the forest enterprise, such as restoration of forest resources, efficient use and increase in productivity. It should be noted that only highly productive forests are able to maintain the environment and increase its wealth. Therefore, one of the important issues of forestry is expanding their areas and increasing their productivity. Solving this valuable task can be

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Permanasari, Paramyta Nila, Karuniawan Puji Wicaksono, Akbar Saitama, Bayu Adi Kusuma, and Muhammad Rafi Bamratama. "Productivity of Arabica Coffee in Brawijaya University’s Agroforestry." International Journal of Environment, Agriculture and Biotechnology 9, no. 2 (2024): 137–42. http://dx.doi.org/10.22161/ijeab.92.15.

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Agroforestry is an agricultural system that combines annual crops with various woody or annual plants. The research carried out in arabica coffee agroforestry of Brawijaya University’s forest with pines as shading plant. Differences in management mechanisms result in differences in arabica coffee production and environmental conditions in the four pine-arabica coffee agroforestry management models in UB forests. The research’s purpose is to analyze production and biodiversity of arabica coffee in UB forests. Based on the results, it can be concluded that different levels of cultivation managem

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Budiaman, Ahmad, Hardjanto, and Yohana Natalia Rahayaan. "TIME CONSUMPTION AND PRODUCTIVITY OF BUCKING OF SENGON IN PRIVATE FORESTS." Jurnal Belantara 8, no. 1 (2025): 28–36. https://doi.org/10.29303/jbl.v8i1.1070.

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Bucking is a forest harvesting stage that determines the quality of round wood. The bucking in private forests uses a chainsaw. Efficient bucking process is a prerequisite for sustainable forest harvesting. The study aimed to analyze the working time and productivity of bucking using a chainsaw in private forests. The study was conducted in private forests planted with an agroforestry pattern in the Probolinggo district, East Java. Working time measurements are carried out based on analysis of video images recorded during data collection in the field. The number of bucking work cycles observed

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McPherson, Scott, F. Wayne Bell, Jeff Leach, Peter Street, and Al Stinson. "Applying research for enhanced productivity on the Canadian Ecology Centre – Forestry Research Partnership forests." Forestry Chronicle 84, no. 5 (2008): 653–65. http://dx.doi.org/10.5558/tfc84653-5.

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The application of enhanced forest productivity (EFP) through intensive silviculture on designated forest areas is arguably one means to maintain or increase fibre supply and global market competitiveness. The Canadian Ecology Centre – Forestry Research Partnership’s (CEC-FRP) 10/10 objective (to increase sustainable fibre production by 10% in 10 years) has focused many years of forest research largely on the practical application of EFP. Large-scale implementation of this research, through a process of adaptive management, is incumbent on first identifying forests that are available and poten

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Zhu, Yu, Shuguang Liu, Wende Yan, et al. "Impact of Ice-Storms and Subsequent Salvage Logging on the Productivity of Cunninghamia lanceolata (Chinese Fir) Forests." Forests 13, no. 2 (2022): 296. http://dx.doi.org/10.3390/f13020296.

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The impacts of ice-storms on forests have received growing attention in recent years. Although there is a wide agreement that ice-storms significantly affect forest structure and functions, how frequent ice-storms and subsequent salvage logging impact productivity of subtropical coniferous forests in the future still remains poorly understood. In this study, we used the Ecosystem Demography model, Version 2.2 (ED-2.2), to project the impact of salvage logging of ice-storm-damaged trees on the productivity of Cunninghamia lanceolata-dominated coniferous forest and C. lanceolata-dominated mixed

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Pinho, JB, and MÂ Marini. "Birds' nesting parameters in four forest types in the Pantanal wetland." Brazilian Journal of Biology 74, no. 4 (2014): 890–98. http://dx.doi.org/10.1590/1519-6984.08713.

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We tested the heterogeneity/productivity hypothesis with respect to the abundance and richness of birds and the vegetation density hypothesis with respect to birds' nest predation rates, and determined the relative importance of forested vegetation formations for the conservation of birds in the Pantanal. We estimated the apparent nesting success, and the abundance and richness of nesting birds' in four forest types, by monitoring nests during two reproductive seasons in four forested physiognomies (two high productivity/heterogeneity evergreen forests = Cambará and Landi; two low productivity

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Gorbunov, Roman. "Productivity dynamics of oak forests of the Crimean Peninsula." E3S Web of Conferences 169 (2020): 03007. http://dx.doi.org/10.1051/e3sconf/202016903007.

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The work proposes a methodology for studying the productivity dynamics of forest ecosystems based on remote sensing data. The possibility of using the NDVI vegetation index to study the interannual variability in productivity of regional ecosystems is shown. The long-term productivity dynamics of oak forests of the Crimean Peninsula is analyzed. On the basis of the data series obtained, the periods characterized by peculiarities of the productivity dynamics of forest ecosystems are identified.

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Hogg, E. H. (Ted), and Pierre Y. Bernier. "Climate change impacts on drought-prone forests in western Canada." Forestry Chronicle 81, no. 5 (2005): 675–82. http://dx.doi.org/10.5558/tfc81675-5.

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From a climate change perspective, much of the recent international focus on forests has been on their role in taking up carbon dioxide (CO2) from the atmosphere. The question of climate change impacts on forest productivity is also emerging as a critical issue, especially in drought-prone regions such as the western Canadian interior. Because of the complexity of interacting factors, there is uncertainty even in predicting the direction of change in the productivity of Canada's forests as a whole over the next century. In the most climatically vulnerable regions, however, successful adaptatio

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Bončina, Andrej, Vasilije Trifković, and Živa Bončina. "Modeliranje višinske in debelinske rasti dominantnih dreves ter ocenjevanje indeksov produkcijske sposobnosti gozdnih rastišč." Acta Silvae et Ligni 125 (August 2021): 1–12. http://dx.doi.org/10.20315/asetl.125.1.

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Modeling the height and diameter growth of trees is an important part of forest management. Growth models provide the basis for determining the thinning regime, target tree dimensions and optimal proportions of developmental phases of forest stands. We developed individual height growth models for dominant Norway spruce (Picea abies (L.) Karst) and European beech (Fagus sylvatica L.) in two forest types (sessile oak-European beech forests and pre-Alpine silver fir-European beech forests). Based on the models, the site productivity index (SPI), defined as the dominant tree height at a diameter

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Chen, Xiaoyu, Meng Xiang, Lan Yao, et al. "Functional trait identity regulates productivity better than tree diversity and structural complexity in subtropical mixed-species forests." PLOS One 20, no. 5 (2025): e0324541. https://doi.org/10.1371/journal.pone.0324541.

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Subtropical forests play an important role in global carbon cycle and in mitigating climate change. Understanding the relationship between multiple diversity and ecosystem function is crucial for protecting and managing forests. Here we used forest inventory data from a 6-hectare sample plot in natural evergreen deciduous broad-leaf mixed forest systems for the years 2016 and 2021. We analyzed the effects of multiple aspects of diversity and topographic factors on forest productivity using multiple causal analyses. We found that Fagaceae was the primary contributor to productivity in the fores

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Latterini, Francesco, Andrzej M. Jagodziński, Paweł Horodecki, Walter Stefanoni, Rachele Venanzi, and Rodolfo Picchio. "The State of the Art of Forest Operations in Beech Stands of Europe and Western Asia." Forests 14, no. 2 (2023): 318. http://dx.doi.org/10.3390/f14020318.

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Beech (Fagus spp.) is one of the most common tree species in Europe and Western Asia. The implementation of sustainable forest Operations (SFOs) in beech forests is therefore crucial in terms of sustainable forest management. This review summarises the state of the art concerning time-motion studies carried out in beech forests, defining the work productivity and the related costs of different harvesting systems applied in these stands. The main focus in recent years on felling and processing operations has been the introduction of fully mechanised systems in beech forests, obtaining satisfact

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Bohn, Friedrich J., Felix May, and Andreas Huth. "Species composition and forest structure explain the temperature sensitivity patterns of productivity in temperate forests." Biogeosciences 15, no. 6 (2018): 1795–813. http://dx.doi.org/10.5194/bg-15-1795-2018.

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Abstract. Rising temperatures due to climate change influence the wood production of forests. Observations show that some temperate forests increase their productivity, whereas others reduce their productivity. This study focuses on how species composition and forest structure properties influence the temperature sensitivity of aboveground wood production (AWP). It further investigates which forests will increase their productivity the most with rising temperatures. We described forest structure by leaf area index, forest height and tree height heterogeneity. Species composition was described

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Lal, Bijendra, and L. S. Lodhiyal. "Stand Structure, Productivity and Carbon Sequestration Potential of Oak Dominated Forests in Kumaun Himalaya." Current World Environment 11, no. 2 (2016): 466–76. http://dx.doi.org/10.12944/cwe.11.2.15.

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Present study deals with stand structure, biomass, productivity and carbon sequestration in oak dominated forests mixed with other broad leaved tree species. The sites of studied forests were located in Nainital region between 29058’ N lat. and 79028’ E long at 1500-2150 m elevation. Tree density of forests ranged from 980-1100 ind.ha-1. Of this, oak trees shared 69-97%. The basal area of trees was 31.81 to 63.93 m2 ha-1. R. arboreum and Q. floribunda shared maximum basal area 16.45 and 16.32 m2 ha-1, respectively in forest site-1 and 2 while Quercus leucotrichophora shared maximum (35.69 m2 h

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Ren, Siyuan, Qingsong Yang, Heming Liu, et al. "The Driving Factors of Subtropical Mature Forest Productivity: Stand Structure Matters." Forests 12, no. 8 (2021): 998. http://dx.doi.org/10.3390/f12080998.

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Forest productivity (increment of above-ground biomass) is determined by biodiversity but also by stand structure attributes. However, the relative strengths of these drivers in determining productivity remain controversial in subtropical forests. In this study, we analyzed a tree growth data from 500 plots with in a 20 ha mature subtropical forest in eastern China. We used spatial simultaneous autoregressive error models to examine the effects of diversity variables (species richness, evenness, and composition), stand structural attributes (stand density, tree size range and diversity), envir

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Bolstad, Paul V., James M. Vose, and Steven G. McNulty. "Forest Productivity, Leaf Area, and Terrain in Southern Appalachian Deciduous Forests." Forest Science 47, no. 3 (2001): 419–27. http://dx.doi.org/10.1093/forestscience/47.3.419.

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Abstract Leaf area index (LAI) is an important structural characteristic of forest ecosystems which has been shown to be strongly related to forest mass and energy cycles and forest productivity. LAI is more easily measured than forest productivity, and so a strong relationship between LAI and productivity would be a valuable tool in forest management. While a linear relationship has been observed between LAI and forest productivity, most of these data have been collected in needle-leaved evergreen stands. The generality and consistency of the relationship between LAI and productivity has not

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Hovi, Aarne, Jingjing Liang, Lauri Korhonen, Hideki Kobayashi, and Miina Rautiainen. "Quantifying the missing link between forest albedo and productivity in the boreal zone." Biogeosciences 13, no. 21 (2016): 6015–30. http://dx.doi.org/10.5194/bg-13-6015-2016.

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Abstract. Albedo and fraction of absorbed photosynthetically active radiation (FAPAR) determine the shortwave radiation balance and productivity of forests. Currently, the physical link between forest albedo and productivity is poorly understood, yet it is crucial for designing optimal forest management strategies for mitigating climate change. We investigated the relationships between boreal forest structure, albedo and FAPAR using a radiative transfer model called Forest Reflectance and Transmittance model FRT and extensive forest inventory data sets ranging from southern boreal forests to t

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Sierra Cornejo, Natalia, Christoph Leuschner, Joscha N. Becker, Andreas Hemp, David Schellenberger Costa, and Dietrich Hertel. "Climate implications on forest above- and belowground carbon allocation patterns along a tropical elevation gradient on Mt. Kilimanjaro (Tanzania)." Oecologia 195, no. 3 (2021): 797–812. http://dx.doi.org/10.1007/s00442-021-04860-8.

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AbstractTropical forests represent the largest store of terrestrial biomass carbon (C) on earth and contribute over-proportionally to global terrestrial net primary productivity (NPP). How climate change is affecting NPP and C allocation to tree components in forests is not well understood. This is true for tropical forests, but particularly for African tropical forests. Studying forest ecosystems along elevation and related temperature and moisture gradients is one possible approach to address this question. However, the inclusion of belowground productivity data in such studies is scarce. On

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Song, Cholho, Stephan A. Pietsch, Moonil Kim, et al. "Assessing Forest Ecosystems across the Vertical Edge of the Mid-Latitude Ecotone Using the BioGeoChemistry Management Model (BGC-MAN)." Forests 10, no. 6 (2019): 523. http://dx.doi.org/10.3390/f10060523.

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The mid-latitude ecotone (MLE)—a transition zone between boreal and temperate forests, which includes the regions of Northeast Asia around 30°–60° N latitudes—delivers different ecosystem functions depending on different management activities. In this study, we assessed forest volume and net primary productivity changes in the MLE of Northeast Asia under different ecological characteristics, as well as various current management activities, using the BioGeoChemistry Management Model (BGC-MAN). We selected five pilot sites for pine (Scots pine and Korean red pine; Pinus sylvestris and P. densif

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Messerli, Siroco. "Agroforestry – A way forward to the sustainable management of the Walnut Fruit Forests in Kyrgyzstan." Schweizerische Zeitschrift fur Forstwesen 153, no. 10 (2002): 392–96. http://dx.doi.org/10.3188/szf.2002.0392.

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The unique Walnut Fruit Forests in Kyrgyzstan are a good example of the multifunctional use of forests in temperate zones. Not only are non-timber forest products (NTFPs) collected but the land in and around the forests is used for grazing and haymaking, as well as for arable cropping and the establishment of fruit orchards. Apart from sustaining the lives of the local mountain people, the Walnut Fruit Forests are extremely rich in biodiversity and have an important function as a watershed for the Ferghana valley. The simultaneous dependence of the population on both agriculture and forest off

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Tkach, Viktor, Maksym Rumiantsev, Volodymyr Luk’yanets, et al. "State and productivity of mixed stands with silver birch and Scots pine in Ukrainian Polissya." Journal of Forest Science 68, No. 12 (2022): 519–28. http://dx.doi.org/10.17221/144/2022-jfs.

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The aim of the study was to assess the current state of silver birch (Betula pendula Roth.) stands in Ukrainian Polissya, as well as to identify optimal composition resulting in productive and resilient mixed birch forests. It was found that in forests managed by the State Forest Resources Agency of Ukraine, birch stands grow on an area of 352 800 ha, covering 5.6% of the total area of forests in Ukraine. Within the study region of Ukrainian Polissya, birch stands cover 294 900 ha making 12.3% of the total forest area. Naturally originated birch stands were found to dominate in the study regio

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Saatchi, S., Y. Malhi, B. Zutta, et al. "Mapping landscape scale variations of forest structure, biomass, and productivity in Amazonia." Biogeosciences Discussions 6, no. 3 (2009): 5461–505. http://dx.doi.org/10.5194/bgd-6-5461-2009.

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Abstract. Landscape and environmental variables such as topography, geomorphology, soil types, and climate are important factors affecting forest composition, structure, productivity, and biomass. Here, we combine a network of forest inventories with recently developed global data products from satellite observations in modeling the potential distributions of forest structure and productivity in Amazonia and examine how geomorphology, soil, and precipitation control these distributions. We use the RAINFOR network of forest plots distributed in lowland forests across Amazonia, and satellite obs

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Duhovnik, Alesya, Yuliya Balabanova, Maria Lushpaeva, Albina Gaiduk, and Aidar Nurullin. "Analysis of promising methods for felling for forest care by multi-operation systems of machines." E3S Web of Conferences 390 (2023): 07043. http://dx.doi.org/10.1051/e3sconf/202339007043.

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One of the leading places in the complex of measures to increase the productivity of forests and the rational use of wood resources is occupied by thinning for forest care. Timely and justified thinning for forest maintenance allows not only increasing the productivity and sustainability of forests, increasing the size of forest use, but also creating prerequisites for the effective implementation of environmental protection and climate control functions by forests. Growing highly productive stands of optimal composition requires regular forest maintenance. In the Republic of Belarus, forest t

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Данчева, Анастасия Васильевна, and Владислав Константинович Панкратов. "ASSESSMENT OF BIRCH FORESTS ECOLOGICAL-BIOLOGICAL PRODUCTIVITY IN OUTLIER FORESTS OF THE KAZAKHSTAN." Вестник Бурятской государственной сельскохозяйственной академии имени В. Р. Филиппова, no. 1(62) (March 25, 2021): 102–9. http://dx.doi.org/10.34655/bgsha.2021.62.1.015.

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Приведены результаты исследования эколого-биологической продуктивности березовых древостоев островных боров Казахстана (на примере Костанайской области). Предпринята попытка составления нормативов эколого-биологической продуктивности исследуемых древостоев на основе таблиц их хода роста. В качестве показателей эколого-биологической продуктивности березовых древостоев были использованы запас стволовой древесины, надземная фитомасса древостоя, прирост запаса и фитомассы за 10-летний период, количество депонированной углекислоты (сток СО) и продуцируемого кислорода (О) надземной фитомассой и ее п

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Bayat, Mahmoud, Pete Bettinger, Sahar Heidari, Seyedeh Kosar Hamidi, and Abolfazl Jaafari. "A Combination of Biotic and Abiotic Factors and Diversity Determine Productivity in Natural Deciduous Forests." Forests 12, no. 11 (2021): 1450. http://dx.doi.org/10.3390/f12111450.

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The relative importance of different biotic and abiotic variables for estimating forest productivity remains unclear for many forest ecosystems around the world, and it is hypothesized that forest productivity could also be estimated by local biodiversity factors. Using a large dataset from 258 forest monitoring permanent sample plots distributed across uneven-aged and mixed forests in northern Iran, we tested the relationship between tree species diversity and forest productivity and examined whether several factors (solar radiation, topographic wetness index, wind velocity, seasonal air temp

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Budiaman, A., Hardjanto Hardjanto, S. Agustin, et al. "Time Consumption and Productivity of Sandat Felling Technique in Agroforestry Private Forests in Probolinggo, Indonesia." Jurnal Manajemen Hutan Tropika (Journal of Tropical Forest Management) 30, no. 1 (2024): 1–11. http://dx.doi.org/10.7226/jtfm.30.1.1.

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Agroforestry is a cropping pattern that is commonly applied to private forest management in Indonesia. Agroforestry based private forest is a land-based silviculture that incorporates forestry plants with agricultural crops, plantation crops, and multi-purpose plants. One of the felling techniques used in agroforestry based private forests is the sandat-felling technique (SFT), which is a rope-assist felling technique. The felling technique was used to protect the remaining stand of the agroforestry based private forest. This technique is an innovation in the harvesting of agroforestry based p

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Xie, Menglu, Yu Zhu, Shuguang Liu, et al. "Simulating the Impacts of Drought and Warming in Summer and Autumn on the Productivity of Subtropical Coniferous Forests." Forests 13, no. 12 (2022): 2147. http://dx.doi.org/10.3390/f13122147.

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The impacts of drought and/or warming on forests have received great attention in recent decades. Although the extreme drought and/or warming events significantly changed the forest demography and regional carbon cycle, the seasonality quantifying the impacts of these climate extremes with different severities on the productivity of subtropical coniferous forests remains poorly understood. This study evaluated the effects of seasonal drought and/or warming on the net primary productivity (NPP) of subtropical coniferous forests (i.e., Cunninghamia lanceolata and Pinus massoniana forests) from H

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Hansen, Winslow D., Naomi B. Schwartz, A. Park Williams, et al. "Global forests are influenced by the legacies of past inter-annual temperature variability." Environmental Research: Ecology 1, no. 1 (2022): 011001. http://dx.doi.org/10.1088/2752-664x/ac6e4a.

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Abstract Inter-annual climate variability (hereafter climate variability) is increasing in many forested regions due to climate change. This variability could have larger near-term impacts on forests than decadal shifts in mean climate, but how forests will respond remains poorly resolved, particularly at broad scales. Individual trees, and even forest communities, often have traits and ecological strategies—the legacies of exposure to past variable conditions—that confer tolerance to subsequent climate variability. However, whether local legacies also shape global forest responses is unknown.

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Moshnikov, S. A., A. M. Kryshen, and I. V. Romashkin. "HISTORY OF RESEARCH ON FOREST PRODUTIVITY IN KARELIA." FOREST SCIENCE ISSUES 6, no. 2 (2023): 1–21. http://dx.doi.org/10.31509/2658-607x-202362-126.

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The article deals with the history of research on the biological productivity of forests in Republic of Karelia as a methodological basis for the modern field of research into the components of carbon balance in forests. Particular attention is paid to the review of the studies of the researchers of the Forest Institute of the Karelian Research Center of the Russian Academy of Sciences from the moment of its formation to the present. The studies of the structure and stocks of phytomass, organic matter and carbon in different components of forest ecosystems, as well as biological aspects of the

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Voevodina, K. I., R. R. Absalyamov, and S. L. Absalyamova. "Berry crop productivity assessment in Seltinsky and Vavozhsky forestries in Udmurt Republic." Forestry Bulletin 6, no. 6 (2021): 31–38. http://dx.doi.org/10.18698/2542-1468-2021-6-31-38.

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The study of berry crops was carried out on the territory of forest areas located in the southern taiga forests in the European part of the Russian Federation, in the taiga zone and in the area of coniferous-broadleaved (mixed) forests of the European part of the Russian Federation as well as in the zone of coniferous-broadleaved forests. By establishing circular plots in the prevailing types of forest, the dominant berry crops were determined such as cranberries (Vaccinium vítis-idaéa L.), blueberries (Vaccinium myrtillus L.) and wild strawberries (Fragaria vesca L.). The dependence of their

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Price, Karen, Rachel F. Holt, and Dave Daust. "Conflicting portrayals of remaining old growth: the British Columbia case." Canadian Journal of Forest Research 51, no. 5 (2021): 742–52. http://dx.doi.org/10.1139/cjfr-2020-0453.

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Old growth is disappearing globally, with implications for biodiversity, forest resilience, and carbon storage; yet uncertainty remains about how much exists, partly because assessments stratify ecosystems differently, sometimes obscuring relevant patterns. This paper compares portrayals of British Columbia’s (BC) old-growth forest stratified in two ways: by biogeoclimatic variant, as per policy, and by relative site productivity. Our analyses confirm provincial government claims that about a quarter of BC’s forests are old growth but find that most of this area has low realized productivity,

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Williams, Christopher J., Arthur H. Johnson, Ben A. LePage, David R. Vann, and Tatsuo Sweda. "Reconstruction of TertiaryMetasequoiaforests. II. Structure, biomass, and productivity of Eocene floodplain forests in the Canadian Arctic." Paleobiology 29, no. 2 (2003): 271–92. http://dx.doi.org/10.1017/s009483730001811x.

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Abundant fossil plant remains are preserved in the high-latitude middle Eocene deposits of the Buchanan Lake Formation on Axel Heiberg Island, Nunavut Territory, Canada. Intact leaf litter, logs, and stumps preserved in situ as mummified remains offer an opportunity to determine the structure, biomass, and productivity of two Taxodiaceae-dominated forests that grew north of the Arctic Circle (paleolatitude 75–80°N). We excavated fossil tree trunks and treetops to develop equations that describe the height, structure, and mass of the aboveground components of Eocene-ageMetasequoiatrees. We comb

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Stelmakh, Valentyna, and Mykhailo Melniichuk. "FOREST FUND OF RIVNE REGION: STRUCTURE AND DYNAMICS." SCIENTIFIC ISSUES OF TERNOPIL VOLODYMYR HNATIUK NATIONAL PEDAGOGICAL UNIVERSITY. SERIES: GEOGRAPHY 50, no. 1 (2021): 188–94. http://dx.doi.org/10.25128/2519-4577.21.1.23.

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In the article, we investigated the current state of the forest fund of Rivne region, which is in the process of reform. We analyzed the dynamics of forest-covered lands from the 1996 to the present time. Forests of Rivne region by ecological and socio-economic significance and depending on the main functions performed by them are divided into the following categories: protective forests - 45085.4 ha, operational forests - 527010.3 ha, recreational and health forests - 63821,8 ha, forests of nature protection, scientific, historical and cultural purpose - 78253.9 ha. The study of the forest sp

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Valladares-Samperio, Karla, and Leopoldo Galicia-Sarmiento. "Impacts of forest management on soil properties: a fundamental research topic for Mexico." Revista Chapingo Serie Ciencias Forestales y del Ambiente 27, no. 1 (2020): 33–52. http://dx.doi.org/10.5154/r.rchscfa.2019.11.088.

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Introduction: The increase in the intensity of wood harvesting has a negative influence on ecosystem functions of soils in temperate and boreal forests. Objective: To understand the impacts of intensive and extensive forest management methods on the physical, chemical and biological properties of soils, and consequences on nutrient availability and stabilization processes in temperate and boreal forests. Results and discussion: Intensive forest management methods can generate greater imbalance in the processes of availability and stabilization of nutrients, compared to selective methods. The i

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