The Impact of Agricultural Soil Erosion on the Global Carbon Cycle. Agricultural soil erosion is thought to perturb the global carbon cycle, but estimates of its effect range from a source of 1 petagram per year-1 to a sink... - 《Science》 被引量: 724发表: 2007年 Agricultural activities...
Soil erosion processes in vineyards, beyond surface runoff and sediment transport, have a strong effect on soil organic carbon (SOC) loss and redistribution along the slope. Variation in SOC across the landscape can determine differences in soil fertility and vine vigor. The goal of this research...
The global impact of soil erosion on productivity. Advances in Agronomy 2004;18:1-95.Biggelaar, C, Lal, R, Wiebe, K, Breneman, V (2004) The global impact of soil erosion on productivity. I: Absolute and relative erosion-induced yield losses. Adv Agron 81: pp. 1-48...
Influence of Soils on Crop Yield and Food Security Food securityis achieved when all people have access to sufficient, safe, and nutritious food (Food and Agriculture Organization of the United Nations, 2003). Food security is central to human health (Brevik 2009a; Carvalho 2006), and the...
on soil erosion risk assessment,an improved method of soil erosion risk assessment was adopted in this paper.Firstly,distribution of soil erosion degree by various impact factors including altitude,gradient,land use type and soil types were calculated by GIS and statistic analysis.Secondly,integrative ...
The least developed economies have been found to experience the highest estimates of soil erosion rates. Human activity and related land use change are the primary cause of soil erosion. Here, the authors show the impacts of 21st century global land use change on soil erosion based on an ...
In implementing the national strategy on the Yellow River, both farsighted vision and down-to-earth work are needed, Xi once said. For him, the purpose of all these efforts is simple: to make the Yellow River benefit the people.
Human activity and related land use change are the primary cause of accelerated soil erosion, which has substantial implications for nutrient and carbon cycling, land productivity and in turn, worldwide socio-economic conditions. Here we present an unpre
Soil erosion has both on-farm and off-farm impacts. Reduction ofsoil depth can impair the land's productivity, and the transportof sediments can degrade streams, lakes, and estuaries. Since1933, soil conservation policies have existed in the UnitedStates. Originally they focused on the on-farm...
The Impact of Neotectonics on the Environmental Evolution and Soil Erosion of Loess Plateau 来自 Semantic Scholar 喜欢 0 阅读量: 38 作者:LI Yu yuan,H Shi 摘要: Neotectonics was the dominant factor of the environmental evolution of Loess Plateau. Since 2.5 MaB.P. , because of the periodical ...