人为干扰对我国西南干热河谷景观的影响

Impacts of Human Disturbances on Dry Valley Landscape in Southwestern China

干热河谷是我国西南山区一种特殊的地理区域,其景观演变与人类干扰密不可分。随着人类活动范围和强度的逐渐增大以及人为干扰方式多样化,人为干扰已成为干热河谷景观演化的主要驱动力,其生态效应日益凸显。本文阐述了干热河谷主要的人类干扰方式以及人为干扰对干热河谷景观组分、景观空间格局、景观结构和景观生态过程的影响,认为未来应该强化人为驱动力因素定量化及人为干扰多角度研究,注重政策、行为及文化对景观的影响,为干热河谷景观格局的优化和生态环境保护提供参考。

The dry-hot valleys （DHV） is a special geographical area in China＇ s southwest mountainous areas and its landscape evolution is closely connected with human disturbances. As human activities have expanded gradually in range and intensity and human disturbances take diversified forms, human disturbances have been the major driving factors to DHV landscape evolution, and its ecological effects have been looming. The paper concluded the major forms of human disturbances as well as human disturbances impacts on the landscape composition, landscape spatial pattern, landscape structure and landscape ecological process in DHV. Then it put forward that quantification of human driving forces and multi-angle researches of human disturbances should be strengthened and more attention should be paid on the impacts of policies, actions and culture on the landscape. This is expected to optimize DHV landscape pattern and provide references for protecting ecological environment there.