固原县上黄村人地关系中心环节分析

水土流失是土地利用不合理造成的,但为什么长期以来直到今天,人们不能合理地利用土地呢?通过上黄村理论联系实际的分析,认为这是涉及到人口的环境容量问题。只有从这里出发考虑问题,所出之策,方有可能为治本之策,提出土地利用上人地关系的中心环节,并将它抽象为一简单等式:m_i=a_i×p_i。对此式作的分析,仍然认为一地区的人口环境容量是有限度的,提出一个完备的综合治理典型是生物与工程相结合的,但在方法上可分为两步走:先生物,后工程,才顺理成章。

The analyses of man-made relationship in Shanghuang Village of Guyuan County

In this paper, some analyses had been done by combining theory with practice based on a case study of a village which is located in Xi-Hai-Gu region, the very well-known poor region in our country.Soil and water loscaused by improper land use as usually saying, but why people do not use their land properly even today? The analysshow that. firstly the key problem refers to the population capacity of environment in an area; secondly, the central link is man-land relaticnship in land use, from which the equation, m_i=a_i×p_i can be summarized and it also predicates the population capacity of an area to be limited; and thirdly a perfect model of comprehensive controlling may be reached by two steps, the first is planting grasses, shrubs and trees and the second is controlling with engineering.