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DocumentOther documentHybrid Poplar and Russian Olive: Height Growth, Survival, and Phytoremediation on Saline Soils 2019
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ArticleJournal articleGrowth and physiological acclimation to shade in young plants of Adesmia bijuga Phil., critically endangered species in central Chile
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Adesmia bijuga Phil. is an endemic and endangered shrub species of central Chile. Its potential shade intolerance is one of the leading hypotheses for its vigor loss when the species grows beneath closed canopies. In this study we aimed to assess growth and physiological acclimation to shade in young of A. bijuga plants. A nursery experiment was established with three light levels based on the interception of photosynthetic active radiation (PAR) (TRT0: control at full sun, TRT60: 60% shaded, and TRT90: 90% shaded), and maintained for 71 days during the summer season. Growth and leaf morpho-physiological responses were evaluated at the beginning, at the middle, and at the end of the experiment. The shading treatment increased plant height (H) and live crown percentage (Lcrown) compared to the control treatment at full sun. However, light-saturated photosynthetic rate (Amax), dark respiration rate (Rd), and light compensation point (Gi) were higher in TRT60 than in the other treatments.No differences were found among treatments for the apparent quantum yield (α). At this stage of plant development, our results suggest high acclimation plasticity of A. bijuga to light levels; however, a semi-shade environment (i.e., TRT60) favored a better performance of the species. Keywords: Shade tolerance, photosynthesis, light acclimation, forest restoration. ID: 3624055
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Book (stand-alone)High-profileState of knowledge of soil biodiversity - Status, challenges and potentialities
Report 2020
2020Also available in:
No results found.There is increasing attention to the importance of biodiversity for food security and nutrition, especially above-ground biodiversity such as plants and animals. However, less attention is being paid to the biodiversity beneath our feet, soil biodiversity, which drives many processes that produce food or purify soil and water. This report is the result of an inclusive process involving more than 300 scientists from around the world under the auspices of the FAO’s Global Soil Partnership and its Intergovernmental Technical Panel on Soils, the Convention on Biological Diversity, the Global Soil Biodiversity Initiative, and the European Commission. It presents concisely the state of knowledge on soil biodiversity, the threats to it, and the solutions that soil biodiversity can provide to problems in different fields. It also represents a valuable contribution to raising awareness of the importance of soil biodiversity and highlighting its role in finding solutions to today's global threats. -
ArticleJournal articleNurturing Soil Life through Agroforestry – The Roles of Trees in the Ecological Intensification of Agriculture 2023
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No results found.Soil resources constitute the very foundation of agriculture, so sustainable agriculture is inherently dependent on soil health. Soil health reflects the capacity of soil to respond beneficially to agricultural management, maintaining both agricultural production and the provision of varying ecosystem services, nutrient cycling, and biodiversity conservation in the long term. Soil health depends on the physical, chemical, and biological conditions of the soil that are required for plant growth and development. Ecological intensification differs from current strategies for agricultural intensification by embracing agroecological transitions to more sustainable agriculture and food systems. This chapter discusses the pivotal role that trees play in building and maintaining the soil health and functional resilience that are required for the ecological intensification of agriculture. It summarizes the current knowledge about functions and impacts of trees on soil health, and highlights the tree/soil biodiversity interactions that drive these functions. -
Book (stand-alone)Technical bookSoil erosion: the greatest challenge for sustainable soil management 2019
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Despite almost a century of research and extension efforts, soil erosion by water, wind and tillage continues to be the greatest threat to soil health and soil ecosystem services in many regions of the world. Our understanding of the physical processes of erosion and the controls on those processes has been firmly established. Nevertheless, some elements remain controversial. It is often these controversial questions that hamper efforts to implement sound erosion control measures in many areas of the world. This book, released in the framework of the Global Symposium on Soil Erosion (15-17 May 2019) reviews the state-of-the-art information related to all topics related to soil erosion.