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Articles de revues sur le sujet "Seed-based restoration":
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Beveridge, Fernanda Caro, Alwyn Williams et Steve Adkins. « Seed enhancement of Australian native species to improve seed-based restoration ». Australasian Plant Conservation : journal of the Australian Network for Plant Conservation 27, no 4 (mai 2019) : 11–13. http://dx.doi.org/10.5962/p.373776.
Wambugu, Peterson W., Desterio O. Nyamongo et Everlyne C. Kirwa. « Role of Seed Banks in Supporting Ecosystem and Biodiversity Conservation and Restoration ». Diversity 15, no 8 (29 juillet 2023) : 896. http://dx.doi.org/10.3390/d15080896.
The world is witnessing massive land degradation caused by climate change and various anthropogenic activities. There has been a significant increase in habitat restoration efforts, with demand for seeds to restore these degraded ecosystems in some cases outstripping supply. Traditionally, seeds for restoration activities have mainly been sourced through collections from the wild, but with the growing seed demand, this is increasingly becoming unsustainable. In order to ensure responsible restoration practice, restoration practitioners need to explore other options of economical, ethical and sustainable sourcing of seeds. Ex situ seed banks can leverage their technical and infrastructural capacity to play a greater and more direct role in supporting biodiversity and ecosystem conservation and restoration, particularly through the supply of quality ecologically and genetically suitable seed. In this paper, we review whether ex situ seed banks possess the capacity and competence for supporting habitat restoration and the challenges they are likely to face in these efforts. The review focuses on seed collecting, field-based seed bulking, seed handling and storage, seed quality control as well as experience and capacity in facilitating germplasm exchange. The availability of high-quality germplasm collections of documented provenance and with broad genetic diversity is arguably the greatest resource and asset that seed banks have in supporting habitat restoration.
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Govers, Laura L., Jannes H. T. Heusinkveld, Max L. E. Gräfnings, Quirin Smeele et Tjisse van der Heide. « Adaptive intertidal seed-based seagrass restoration in the Dutch Wadden Sea ». PLOS ONE 17, no 2 (9 février 2022) : e0262845. http://dx.doi.org/10.1371/journal.pone.0262845.
Seagrasses form the foundation of many coastal ecosystems but are rapidly declining on a global scale. The Dutch Wadden Sea once supported extensive subtidal seagrass meadows that have all disappeared. Here, we report on the setbacks and successes of intertidal seed-based restoration experiments in the Dutch Wadden Sea between 2014–2017. Our main goals were to 1) optimize plant densities, and 2) reduce seed losses. To achieve our goals, we conducted research-based, adaptive seagrass (Zostera marina) restoration, adjusting methods yearly based on previous results. We applied various seeding methods in three subsequent years–from Buoy Deployed Seeding (BuDS), and ‘BuDS-in-frame’ in fall, to a newly developed ‘Dispenser Injection Seeding’ (DIS) method. Our adaptive experimental approach revealed high seed losses between seeding and seedling establishment of the BuDS methods (>99.9%), which we mitigated by controlled harvest and storage of seeds throughout fall and winter, followed by DIS-seeding in spring. These iterative innovations resulted in 83 times higher plant densities in the field (0.012 to 1.00 plants m-2) and a small reduction in seed loss (99.94 to 99.75%) between 2015–2017. Although these developments have not yet resulted in self-sustaining seagrass populations, we are one step closer towards upscaling seagrass restoration in the Dutch Wadden Sea. Our outcomes suggest that an iterative, research-based restoration approach that focuses on technological advancement of precision-seeding may result in advancing knowledge and improved seed-based seagrass restoration successes.
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Valkó, Orsolya, Péter Török, Béla Tóthmérész et Gábor Matus. « Restoration Potential in Seed Banks of Acidic Fen and Dry-Mesophilous Meadows : Can Restoration Be Based on Local Seed Banks ? » Restoration Ecology 19, no 101 (7 juin 2010) : 9–15. http://dx.doi.org/10.1111/j.1526-100x.2010.00679.x.
Urzedo, Danilo, Fatima Piña-Rodrigues, Rafael Feltran-Barbieri, Rodrigo Junqueira et Robert Fisher. « Seed Networks for Upscaling Forest Landscape Restoration : Is It Possible to Expand Native Plant Sources in Brazil ? » Forests 11, no 3 (27 février 2020) : 259. http://dx.doi.org/10.3390/f11030259.
In this paper, we explore how diverse community networks in Brazil have locally advanced seed production and institutional systems to enhance a restoration economy. By focusing on the experiences of the six major native seed suppliers in Amazonia, the Cerrado, and the Atlantic Forest, we estimate the capacity to scale-up community-based systems to meet a large-scale restoration target as a rural development strategy. Over one decade, 1016 collectors traded 416.91 tonnes of native seeds representing, on average, 31.41 kilos yearly and USD 256.5 as household income. Based on this well documented empirical evidence, we estimate that Brazil’s restoration goal would require from 3.6 to 15.6 thousand tonnes of native seeds depending on the share of each restoration method adopted with potential work opportunities for 13.2 to 57.1 thousand collectors yearly and total income from USD 34 to 146 million. We argue that community networks represent feasible arrangements for increasing the availability of plant material sources which provide high socio-economic benefits. For scaling up native seed sources, we suggest the following key strategies: (i) government incentives and subsidies; (ii) enforcement of ecosystem restoration; (iii) community participation; (iv) adaptation of the seed regulations; (v) technological development; and (vi) seed market diversification.
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Unsworth, R. K. F., C. M. Bertelli, L. Coals, L. C. Cullen-Unsworth, S. den Haan, B. L. H. Jones, S. R. Rees, E. Thomsen, A. Wookey et B. Walter. « Bottlenecks to seed-based seagrass restoration reveal opportunities for improvement ». Global Ecology and Conservation 48 (décembre 2023) : e02736. http://dx.doi.org/10.1016/j.gecco.2023.e02736.
Reis, Ademir, Fernando Campanhã Bechara et Deisy Regina Tres. « Nucleation in tropical ecological restoration ». Scientia Agricola 67, no 2 (avril 2010) : 244–50. http://dx.doi.org/10.1590/s0103-90162010000200018.
Ecological theories of facilitation and nucleation are proposed as a basis for environmental restoration in tropical ecosystems. The main goal of this paper is to present restoration techniques based on the concept of nucleation, in which small nuclei of vegetation are established within a degraded land. The nucleation techniques (artificial shelters for animals, planting of herbaceous shrub life forms, soil and seed bank translocation, seed rain translocation, soil and seed rain translocation's seedling set, artificial perches, planting of native trees in groups, and ecological stepping-stones with functional groups) promote the landscape connectivity on two flows: inward: receiver connectivity and outward: donor connectivity. The nuclei development represents an alternative for restoration by prioritizing the natural processes of succession. This methodology appears to take long to generate vegetation corresponding to tropical climates, but is fundamental in the formation of communities capable of acting, in the future, as a new functional nuclei within the current fragmented landscape. This strategy also encourages greater integration between the theories and projects of ecological restoration for the development of human resources and to benefit the restoration practitioner.
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KASCHIEVA, Mariya, Ivaylo IVANOV, Nikolay DINKOV et Nikolay NEDYALKOV. « REVIEW OF METHODS FROM AGRICULTURAL AND HORTICULTURAL PRACTICE USED IN PROJECTS RELATED TO THE RESTORATION OF NATURAL HABITATS ». "Annals of the University of Craiova - Agriculture Montanology Cadastre Series " 52, no 2 (5 janvier 2023) : 90–99. http://dx.doi.org/10.52846/aamc.v52i2.1394.
Review of methods from agricultural and horticultural practice used in projects related to the restoration of natural habitats. Ecological restoration supports the reconstruction of degraded, damaged or destroyed natural habitats. Restoration activities lead to an increased demand for seeds or seedlings of plant species characteristic of different habitats. This creates a demand that cannot be met by the supply of wild plant seeds. In order to ensure sufficient quantities of seeds for restoration activities, methods typical of agricultural production are increasingly applied. Often, seeds intended for ecological restoration are obtained under natural conditions from natural populations that reflect the genetic diversity of the given species. Obtaining seeds in this way is a labour-intensive and expensive process and does not meet the requirements for large-scale restoration activities required by practice. In this case, to improve seed production and to reduce costs, different wild seed production systems are integrated that are based on agricultural or horticultural production methods (Pedrini et al. 2020), providing a new intersection between habitat restoration and agriculture. Both the classic selection methods and the methods of modern selection science are applied in the restoration practice. Restoration ecology in its application combines selection, agricultural seed production and plant physiology. Some of the reviewed methods were applied in practice during the implementation of a project related to the restoration of natural habitat 62С0* Ponto-Sarmatian steppes in Bulgaria.
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Pedrini, Simone, Jason C. Stevens et Kingsley W. Dixon. « Seed encrusting with salicylic acid : A novel approach to improve establishment of grass species in ecological restoration ». PLOS ONE 16, no 6 (9 juin 2021) : e0242035. http://dx.doi.org/10.1371/journal.pone.0242035.
To achieve global ambitions in large scale ecological restoration, there is a need for approaches that improve the efficiency of seed-based interventions, particularly in overcoming the bottleneck in the transition from germination to seedling establishment. In this study, we tested a novel seed-based application of the plant stress modulator compound salicylic acid as a means to reduce seedling losses in the seed-to-seedling phase. Seed coating technology (encrusting) was developed as a precursor for optimising field sowing for three grass species commonly used in restoration programs, Austrostipa scabra, Microlaena stipoides, and Rytidosperma geniculatum. Salicylic acid (SA, 0.1mM) was delivered to seeds via imbibition and seed encrusting. The effects of SA on seed germination were examined under controlled water-limited conditions (drought resilience) in laboratory setting and on seed germination, seedling emergence, seedling growth and plant survival in field conditions. Salicylic acid did not impact germination under water stress in controlled laboratory conditions and did not affect seedling emergence in the field. However, seedling survival and growth were improved in plants grown from SA treated seeds (imbibed and encrusted) under field conditions. When SA delivery methods of imbibing and coating were compared, there was no significant difference in survival and growth, showing that seed coating has potential to deliver SA. Effect of intraspecific competition as a result of seedling density was also considered. Seedling survival over the dry summer season was more than double at low seedling density (40 plants/m2) compared to high seedling density (380 plants/m2). Overall, adjustment of seeding rate according to expected emergence combined with the use of salicylic acid via coating could improve seed use efficiency in seed-based restoration.
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Lin, Wei, et Yu Lin. « Soybean image segmentation based on multi-scale Retinex with color restoration ». Journal of Physics : Conference Series 2284, no 1 (1 juin 2022) : 012010. http://dx.doi.org/10.1088/1742-6596/2284/1/012010.
Abstract Aiming at the matter of seed overlapping and adhesion within the actual quality detection of soybean, a soybean image segmentation based on multi-scale Retinex with color restoration (MSRCR) was proposed. Firstly, original images of soybean were obtained by the industrial camera. secondly, these images were enhanced by MSRCR. Thirdly, these images after MSRCR were segmented by Otsu. Finally, soybean seed images were extracted by mask and minimum bounding rectangle from soybean images after MSRCR. The image acquisition system was constructed and the algorithm was verified. The experiment showed that the segmentation accuracy of the proposed algorithm was 98.05%, which can meet the requirement of soybean image segmentation. Additionally, the proposed algorithm can also provide an image preprocessing method for agricultural seed classification in similar scenes.
Yannelli, Lucero Florencia [Verfasser], Johannes [Akademischer Betreuer] Kollmann et Johannes [Akademischer Betreuer] Schnyder. « Biological invasions and restoration : trait-based design of seed mixtures, biotic resistance and competition with native species / Florencia Yannelli Lucero. Betreuer : Johannes Kollmann. Gutachter : Johannes Kollmann ; Johannes Schnyder ». München : Universitätsbibliothek der TU München, 2016. http://d-nb.info/1096459140/34.
Howe, Alexander Addison. « Assessment of a Seedling-Based Approach to Aspen Restoration in the Intermountain West ». DigitalCommons@USU, 2018. https://digitalcommons.usu.edu/etd/7062.
Quaking aspen (Populus tremuloides) is an important species ecologically and culturally in the western U.S., where it is one of the only broadleaf trees in the mostly conifer-dominated forests. Aspen management in the West has focused on regenerating existing stands vegetatively through root suckering, however this approach is restricted to locations where aspen currently exists and limits the genetic diversity of aspen populations. Planting nursery-grown aspen seedlings offers a potential method for overcoming these limitations, but it has received little attention in the U.S. Intermountain West (IW) to date. In order for this approach to be more broadly implemented, nursery protocols designed to grow high-quality aspen seedlings are needed, along with an understanding of what the major challenges to seedling establishment will be.
With the assistance of my committee, my research tested a seedling-based approach to aspen restoration in an IW context in two phases. I first used nursery protocols developed for boreal aspen to grow seedlings collected from IW sources in order to assess whether modification of the protocols would be necessary. I then planted the seedlings I grew at three sites in southwestern Utah and monitored their growth and survival over two years. Results from the nursery phase suggest that protocols will need to be modified in order to produce a more consistent response from IW aspen seedlings. In the field, only 10% of the seedlings survived, though the majority of survival occurred in just two locations where soil moisture remained highest during the driest part of the early summer. These results provide useful information to direct future research and suggest that with a better understanding of appropriate site selection, seedling-based aspen restoration could still become a viable management tool in the IW.
Livres sur le sujet "Seed-based restoration":
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Erickson, Todd, Russell Barrett, David Merritt et Kingsley Dixon, dir. Pilbara Seed Atlas and Field Guide. CSIRO Publishing, 2016. http://dx.doi.org/10.1071/9781486305537.
The Pilbara region in Australia’s arid northwest is rich in flora that is suited to extreme temperatures and boom and bust cycles of moisture availability. It is also a region important for its natural resources. In places where mining activities have finished and the land is under management for ecological restoration, there is increasing demand for information about native plant communities and the biology of their seeds.
Pilbara Seed Atlas and Field Guide is the first book to combine plant identification with robust, scientific criteria for cost-effective seed-based rehabilitation. It describes 103 regional plant taxa and provides guidelines for effective collection, cleaning, storage and germination of their seeds. It addresses issues such as timing of collection, quality and viability of seed, and dormancy release, which are essential for successful restoration programs. With photographs to portray the subtle differences and unique features of each species’ biology, this book will be of great use to practitioners in the field, including environmental consultants, rehabilitation companies, commercial seed collectors and government authorities, as well as naturalists and people interested in growing the Pilbara’s remarkable plants.
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Dunphy, Mark, Steve McAlpin, Paul Nelson, Michelle Chapman et Hugh Nicholson. Australian Rainforest Seeds. CSIRO Publishing, 2020. http://dx.doi.org/10.1071/9781486311514.
Have you ever wondered how to grow your own rainforest trees? Is there a beautiful tree that you have always wanted to collect and propagate the seed from? Are you in the business of ecological restoration, rainforest propagation or environmental education?
This long-awaited guide to rainforest seed propagation unlocks the secrets to growing 300 rainforest species. Providing specific information on how to sustainably collect, process and germinate seeds, this user-friendly book aims to support a growing movement of rainforest restoration.
With invaluable information based on 30 years of research in northern New South Wales, users will find even difficult rainforest species delightfully easy to grow. Seeing a seed germinate, caring for the seedling and eventually planting the tree is deeply satisfying. And, in this time of widespread deforestation, millions of trees are needed for restoration and every tree counts. Whether you are growing one or one hundred thousand, why not start today?
Chapitres de livres sur le sujet "Seed-based restoration":
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Tata, Hesti Lestari. « Genetic Diversity in Peatland Restoration : A Case of Jelutung ». Dans Global Environmental Studies, 185–95. Singapore : Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-0906-3_10.
AbstractThe target of the Indonesian government was to restore at least 2 million ha of degraded peatlands by 2020. This can be achieved by applying three approaches: rewetting, revegetation, and revitalization of the community. In revegetation, the use of native tree species is recommended in the technical guidelines for peatland restoration. The interest in using native plant species for ecosystem restoration, particularly for peatland restoration, is increasing significantly. The native species may adapt well to the environment and usually correspond with the people’s preference. An important concern in revegetation is the selection of suitable genetics of the planting stocks. In peatland restoration, a seed source with high genetic diversity should be used since it maintains the genetic entity. On the other hand, low genetic diversity used for peatland restoration may result in the genetic drift of the populations. A native tree species, Dyera polyphylla (locally known as jelutung), has been widely used for peatland restoration in Indonesia. Many other species can also be developed and require further research. Several community-based seedling nurseries have been established in Sumatra and Kalimantan. The challenge is to emphasize the importance of genetic diversity to the farmers with businesses in a seedling nursery. The necessary strategy of seed sourcing in peatland restoration includes composite provenancing and admixture provenancing.
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Bradford, Kent J., et Pedro Bello. « Applying population-based threshold models to quantify and improve seed quality attributes ». Dans Advances in seed science and technology for more sustainable crop production, 67–154. Burleigh Dodds Science Publishing, 2022. http://dx.doi.org/10.19103/as.2022.0105.05.
Achieving rapid and uniform stand establishment in crops requires a combination of high-quality seeds and appropriate environmental conditions. In particular, temperature and soil moisture (or water potential) are the major factors influencing germination in the field. In this chapter, we focus on the application of population-based threshold (PBT) models to characterize seed germination time courses and how environmental and technological inputs influence them. Viewing seed quality as a product of the behavior of populations of individual seeds is critical for understanding the causes and consequences of poor performance. Quantitatively characterizing seed population features enables their use in seed sorting and seed enhancement, and provides phenotypes for use in research, breeding, conservation and restoration. We believe that PBT models are essential tools to enable full utilization of new advances in seed technology to improve seed quality and enable successful stand establishment in agriculture or in natural settings.
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Li, Shengdong, Zhikui Liu, Lei Wang, Ying Xiong, Yongxiong Xie et Bingyan Huang. « Selection of Dominant Moss Species for Ecological Restoration of Abandoned Mines – A Case Study of Tieshan Quarry in Qixing District, Guilin, China ». Dans Advances in Transdisciplinary Engineering. IOS Press, 2022. http://dx.doi.org/10.3233/atde221002.
The local dominant mosses were used to study the revegetation of the high and steep slope of the open-pit mine. Based on the improved Line Intercept Method (LIM), the rapid screening of dominant pioneer mosses for mine reforestation was carried out and the impact of habitat on the development of wild mosses was preliminarily explored. The results showed that 6 species of mosses belonging to 5 families were found in the representative plots, and Barbula unguiculata was the dominant species among the pioneer mosses. The important values of mosses were as follows: Barbula unguiculata > Brachymenium exile > Haplocladium microphyllum > Amblystegium serpens,> Sematophyllum subpinnatum > Thuidium glaucinoides. Altitude, temperature and humidity are important factors affecting the development of wild Barbula unguiculata. The improved LIM was applied in field experiment to obtain and quickly screen dominant moss, this method was also of great significance to other research areas. It is a development direction for mine regreening engineering to select superior local moss species suitable for the regional environment as the re greening seed source.
Actes de conférences sur le sujet "Seed-based restoration":
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Tikhmenev, Evgeny, et Pavel Evgenievich Tikhmenev. « Seed Reduplication of the Flowering Plants of the Disturbed Landscapes in the Northern of Far-East of Asia ». Dans 3rd International Congress on Engineering and Life Science. Prensip Publishing, 2023. http://dx.doi.org/10.61326/icelis.2023.57.
The results of studies of anthropogenic landscapes functioning with an assessment on the processes natural self-revegetation and effectivity of reclamation in tundra, forest-tundra, larch forest complexes are summarized. The principles of accelerated restoration of the ecological and aesthetic value of disturbed landscapes at the permafrost zone are substantiated, based on the data obtained during studying the self-revegetation and reclamation processes on disturbed complexes. Development of placer and ore deposits of mineral resources is leading to deep transformation of landscape and to destruction of soil-vegetation complexes. The processes caused by mining activity are leading to variable mechanisms of degradation of soil and vegetation often having complex impact. Results of study of sustainability of soil-vegetable complexes to the impact of mancaused activity have showed the dependence from the structure of soil profile and it characteristic, from the character of genetic horizons, frozen status of the landscape elements, form of the structure, biomass and seed productivity. The rate of fertilization and fruiting regularity of perspective some species of native flora for introduction as medical, nutritive or fodder plants was also determined.
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Skliar, Viktoriia. « DISCOVERY OF THE FEATURES AND REGULATIONS OF THE PROCESS OF NATURAL REGENERATION OF FORESTS ON THE BASIS OF THE CONSTRUCTION OF PHYTOCENOTIC PYRAMIDS ». Dans 22nd International Multidisciplinary Scientific GeoConference 2022. STEF92 Technology, 2022. http://dx.doi.org/10.5593/sgem2022v/3.2/s14.36.
Studies were conducted on the territories of the Left Bank Polissia, which aimed to assess the state and find out the peculiarities and patterns of natural seed regeneration of the leading forest-forming species of the Left Bank Polissia of Ukraine � Pinus sylvestris L., Quercus robur L., Acer platanoides L., Betula pendula Roth., Populus tremula L. as a mechanism for ensuring the preservation and functioning of forest phytocoenoses of this region. Phytocoenoses of 24 groups of associations representing forest communities typical for the region were covered by the study. The studies were carried out based on the original system of the division of woody plant populations into intrapopulation structural groups - cohorts. Considering the established facts regarding the prevalence of cohorts in the phytocoenoses of the Left Bank Polissia of Ukraine, a special method of building phytocoenotic pyramids of natural restoration was developed. According to the results of the analysis of the condition and signs of phytocenotic pyramids, it is shown that the natural regeneration of each of the forest-forming species within the areas of the Left Bank Polissia of Ukraine has its own specific features signs of formation, distribution of cohorts and their transition from tier to tier of forest phytocoenoses. Although all these species are characterized by a tendency to decrease the prevalence of cohorts in the range small undergrowth > medium > large.
