甘肃白银地区生态区域分异及其恢复途径初步探讨

A probe into the differentiation and restoration method of the ecological zone in Baiyin prefecture,Gansu province

依据白银地区的水-热及土壤基质等自然环境状况及生态恢复需要,划分白银地区为冷温微润、冷温微干、微温微干、微温干旱、微温极干5个生物气候及生态恢复区、10个恢复亚区。根据各恢复区的基本特征、退化现状和退化主导因子的分异,探讨了区域生态恢复途径。

The paper, according to the natural environment conditions such as water-heat and soil etc. and the need of restoring the ecological environment, divides Baiyin prefecture into five zones such as cold temperate-feeble wet, cold temperate-feeble drought, feeble temperate-feeble drought, feeble temperatedrought, feeble temperate-ultradrought zone and ten subzones of biological climate and for ecological restoration. The approach to restore the zonal ecology was probed according to the basic characteristics, current status of degradation and the major degradation factors of each restoration zone.