Farmer‘s perception and response towards grain-for-green program and eco-environment based on participatory rural appraisal Application of regression tree in analyzing the effects of climate factors on NDVI in loess hilly area of Shaanxi Province. Resource conditions and countermeasures implementing the strategy of returning the grain plots to forestry and grass on Loess Hilly Area Modeling Soil Moisture Based on GIS in Small Watershed of Loess Hilly Area Comparative Analysis of Soil Moisture Characteristics Under Typical Vegetation Types in Loess Area of West Shanxi Effects of vegetation types on soil microbial biomass C, N, P on the Loess Hilly Area Initiation stage to regulate the caragana growth and soil water in the semiarid area of Loess Hilly Region, China Variance analysis of soil carbon sequestration under three typical forest lands converted from farmland in a Loess Hilly Area Study on Potential Productivity of Forestry Land in Huang Jiaercha Small Water Shed of Loess Hilly Area Study on the Ameliorate Benefits of Caragana korshinskii Shrubwood to Soil Properties in Loess Hilly Area