基于PSR模型的华北平原水土流失易发性评价指标体系初探

Proneness Evaluation Index System of Soil and Water Loss in the North China Plain based on PSR Model

平原水土流失易发区划定是水土流失研究中的一个新领域，目前有关这方面的研究详见相关的文献。本文在剖析平原水土流失易发性内涵的基础上，构建了平原水土流失易发性评价的压力-状态-响应概念模型，并运用此模型建立了包括压力、状态和响应三方面26个影响因子的华北平原水土流失易发性评价的指标体系。该指标体系探索了压力与平原（华北平原）水土流失易发程度之间的关系，为平原水土流失易发区划定工作提供了理论依据。

The proneness zone delineation of soil and water loss in plain is a new field in the research of soil and water conservation, which rarely has seen relative literature by now. Based on the analysis of connotation of proneness of soil and water loss in plain,and for proneness evaluation of soil and water loss in plain is proposed in the paper. The evaluation index system which including the pressure,state and response,and 26 im- pact factors for proneness of soil and water loss in the North China Plain is established based on the model. The index system aims to explore re- lationships between the pressure and the proneness of soil and water loss in plain（the North China Plain） change. The paper puts forward some theoretical basis for proneness zone delineation of soil and water loss in plain.