文档介绍：Analysis of Land-Use Changes in Loess Hilly Region
Based on PSR Model
———A Case Study in Shanghuang study area in GuYuan City
HAO Shilong CHEN Nanxiang
1. School of Resources and Environment,North China School of Resources and Environment,North China
University of Water Conservancy and Electric Power, University of Water Conservancy and Electric Power,
Zhengzhou 450011, China; Zhengzhou 450011, China
2. State Key Laboratory of Soil Erosion and Dryland Farming E-mail: ******@ncwu.
on the Loess Plateau,Institute of Water and Soil
Conservation,Chinese Academy of Sciences and Ministry of
Water Resources, Yangling 712100 Shaanxi, .
E-mail: ******@ncwu.
Abstract: The Pressure-State-Response model (PSR) proposed result, it is important to study the problems of soil erosion and
by the OECD and UNEP in 1994 was used to evaluate ecosystem understanding the natural and social factors which cause the
health, In this paper, the PSR concept model was cited to reflect land degradation and ecological deterioration in this region.
the pressures upon land resource in different time exerted by From the beginning of the period of the “Seventh Five-year
human activities, the responses of society to these pressures, and Plan” period, Chinese government set up a number of
the state changes of land resources in different phase. A experi