基于区域土壤水分供给量的土地利用优化模式

Optimum Land-Use Patterns Based on Regional Available Soil Water

与以数量结构生态优化为目标的土地利用优化配置不同 ,提出了基于主要生态过程的土地利用空间格局优化的思路。借助于地理信息系统等技术 ,在对主要生态水文过程模拟的基础上 ,建立了土地利用最小耗费表面模型 ,探讨了土地利用时空格局优化模式研究的技术途径。最后 ,以受沙质荒漠化威胁地区较严重的鄂尔多斯高原的考考赖沟流域为例 。

s: Different from the previous land use allocation that aimed at ecological optimum of quantitative structure, this paper put forward space optimum patterns of land use, which was based on the major ecological process. On the basis of simulation of hydrological process by means of Geographical Information System techniques, The land use MCR(Minimum Cumulative Resistance) model was developed and the technology approaches to land use space optimum patterns were discussed. Taking the Kaokaolaigou river basin of Erdos plateau as the case, the model was applied and the result was analyzed.