土地演替与生态设计——以陕北黄土高原为例

LAND NATURAL EVOLUTION AND ECOLOGIC DESIGN——WITH LOESS PLATEAUE IN NORTHERN SHANXI AS EXAMPLE

本文是以往在陕北黄土高原有关土地及其形态单位的分布、演替和生态设计研究的基础上,对陕北黄土高原土地演替与生态设计模式的进一步研究;通过对典型地段土地形态单位的生态设计模拟,并由土地形态单位生态样地和生态功能地段的有规律结合,构成土地基本单位的土地生态系统网络;目的在于人为的控制土地的动态演替趋势,并与现实生产紧密结合起来,提出一个带有规律而具有普遍意义的生态设计模式。为治理黄土高原,实现以林牧为主、农林牧综合发展建设方针的规划设计,提供科学依据。

On the base of study about distribution, structure and evolution of land pattern unit and ecologic design,this paper further researched land pattern evolution and ecologic design in northern Shanxi. It also formed land ecosystem network of land basis pattern unit by ecologic design of land pattern unit in typical region and regular combine of ecosystem function and land pattern unit ecologic typical region. Its aim is to control land evolution tendency artificially combiniing with production and to present ecologic design pattern with regular and general sense. It provided scientific basis for controling loess plateaue and realizing construction principle of combining farming, foresery with animal husbandry in forestry and animal husbandry as main item.