Hydrological Effects of Water and Soil Conservation Measures in Loess Plateau
نویسنده
چکیده
Taking the two typical tributaries in the loess plateau as an example, the hydrological effects of water and soil conservation measures were studied with parallel comparative analysis method. The results show that water and soil conservation measures can reduce annual runoff and sediment module, cut down flood peak discharge and lower sediment concentration efficiently. And meanwhile, it also can delay the occurred time of flood peak; shorten the flood duration in small-scale watershed. Although the measures can change the relationships between runoff, sediment and rainfall, it has no significant effects on correlativity between these factors.
منابع مشابه
Rainfall Characteristics of the Liudaogou Catchment on the Northern Loess Plateau of China
The objectives of this study were to understand the rainfall characteristics of thewind-water erosion crisscross region on the northern Loess Plateau, China, to provide basisfor the studies on mitigation of soil erosion, estimation on surface water resources andlocal hydrological circle, etc. The Liudaogou Catchment with representative climatic andhydrologic conditions of wind-water erosion cri...
متن کاملImpacts of soil conservation on groundwater recharge in the semi-arid Loess Plateau, China
Soil conservation measures undertaken to address land degradation can alter the hydrologic cycle by changing partitioning of water fluxes at the land surface. While effects on runoff are well documented, impacts of soil conservation activities on fluxes to groundwater are poorly understood. The goal of this study was to examine fluxes to groundwater in a semi-arid area of China’s Loess Plateau ...
متن کاملA Policy-Driven Large Scale Ecological Restoration: Quantifying Ecosystem Services Changes in the Loess Plateau of China
As one of the key tools for regulating human-ecosystem relations, environmental conservation policies can promote ecological rehabilitation across a variety of spatiotemporal scales. However, quantifying the ecological effects of such policies at the regional level is difficult. A case study was conducted at the regional level in the ecologically vulnerable region of the Loess Plateau, China, t...
متن کاملCoupling Analysis of Hydrometeorology and Erosive Landforms Evolution in Loess Plateau, China
1State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, CAS and MWR, Yangling, Shaanxi 712100, China 2University of Chinese Academy of Sciences, Beijing 100049, China 3Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, China 4Department of Forestry, Mississippi State University, Starkvil...
متن کاملDetecting water yield variability due to the small proportional land use and land cover changes in a watershed on the Loess Plateau, China
Soil conservation practices have been widely implemented on the Loess Plateau to reduce severe soil erosion in north-central China over the past three decades. However, the hydrologic impacts of these practices are not well documented and understood. The objective of this study was to examine how water yield has changed after implementing soil conservation practices that resulted in changes in ...
متن کامل