Rasilimali tambuliswa: Land Degradation
13 vitu vilivyopatikana (Inaonyesha 1 - 10) Kifuatacho
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Rasilimali Muhimu14-11-2012 The UNCCD estimates that over 250 million people are affected by land degradation, and about 1 billion people in over 100 countries are at risk. According to the WMO, 33% of the world’s land surface is vulnerable to land degradation.Degraded lands lead to overall reduced productivity and reduced...
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Abstract, Wiley Online, 2020 Land degradation (LD) in Mali is prevalent and leads to an enduring environmental and humanitarian crisis. Farmers' ecological knowledge has proven to be a valuable tool in addressing its challenges. How farmers perceive LD affects how they deal with induced risks,...
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Abstract, Scientific Reports, 2018 The debate over whether soil erosion is a carbon (C) sink or atmospheric CO2source remains highly controversial. For the first time, we report the magnitude of C stabilization associated with soil erosion control for an entire large river basin. The soil erosion...
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Soils are the main terrestrial reservoir of organic carbon, nitrogen and phosphorus. Thus, any type of disturbance, e.g. landuse changes, that alters soil integrity is a threat to planetaryscale biogeochemical cycles that sustain the life-support systems of the Earth. Soil erosion impacts the...
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Abstract, European Jounal of Soil Science, 2018 Land degradation in the form of soil erosion is a major problem in semiarid and arid regions. Understanding the processes and mechanisms affecting the generation of runoff and subsequent soil erosion in these regions is essential for the development...
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Abstract, Science Advances, 2018 Understanding of the processes governing soil organic carbon turnover is confounded by the fact that C feedbacks driven by soil erosion have not yet been fully explored at large scale. However, in a changing climate, variation in rainfall erosivity (and hence soil...
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Abstract, Land Degradation and Development 2018 Soils are vital for supporting food security and other ecosystem services. Climate change can affect soil functions both directly and indirectly. Direct effects include temperature, precipitation, and moisture regime changes. Indirect effects...
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Wakati maarifa ya jinsi mmomonyoko wa udongo unavyotokea na jinsi ya kuudhibiti umedhibitishwa, utafiti zaidi unahitajika juu ya jinsi ya kupima viwango vya upotezaji wa udongo na bajeti ya hatua za kuipunguza bado inajadiliwa. Kwa kweli, kuna kutokubaliana juu ya ikiwa mmomonyoko hubadilisha...
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Abstract, Environmental Research Letters, 2018 Implementation of socially acceptable and environmentally desirable solutions to soil erosion challenges is often limited by (1) fundamental gaps between the evidence bases of different disciplines and (2) an implementation gap between science-based...
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20-01-2019 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...