我国西南主要干旱河谷生态及其研究进展

在广泛查阅前人工作的基础上, 发现到目前为止, 对干旱河谷生态方面的研究主要集中在成土特征和土壤养分水分分布特征、植被状况及生态恢复上.认为干旱河谷生态研究的进一步工作应该注重人为因素的研究, 对干旱河谷区人口与生态环境间不协调的方面进行干预, 以实现该区域人口与生态环境的良性互动;加强景观生态学研究和多尺度集成, 利用景观生态学原理、方法来探讨干旱河谷景观结构和功能的相应变化, 寻求维持区域生态安全的关键机制.

Ecological problems of primary dry valleys is Southwest China and advances in the researches into them

On the basis of referring to massive data, we find out that the previous studies on dry valley ecological environment were focused on soil forming feature,the distribution of soil nutrients and moisture,vegetation restoration, ecological environment reconstruction. To achieve harmony among population, resources and environment, the relationship between human being and environment should be focused in further study. After analyzing response and feedback of ecosystem and ecological factors to ecological environment change of dry valley, landscape ecology theories should be used to study the structure and function of dry valley and seek the primary mechanism of local ecological safety.