生态环境学报2018，Vol.27Issue(4)：699-705,7.DOI:10.16258/j.cnki.1674-5906.2018.04.015
四川省水土保持生态保护红线划定方法研究
The Demarcation of Ecological Protection Red Line Based on Soil and Water Conservation Function
摘要
Abstract
Ecological protection red line is the most important boundaries in the ecological protection zones, and the baseline of the ecological security of a nation or a region. Ecological red line zones are expected to help to solve the problems of environmental degradation and natural resource depletion. Currently, demarcating ecological red line have been one of the important environmental protection strategy of our country. However, it is still a new study topic in field of academic research. Demarcating ecological red line zones in important eco-functional areas and ecological sensitive/fragile areas are necessary for maintaining regional ecological integrity and for sustaining ecosystem services and functions. Therefore, in this study, we should explore the methods to demarcate ecological red line which have high soil and water conservation function, based on remote sensing date, meteorological data and solar radiation date, etc, combined with GIS technology, and the RUSLE model. The results indicate that the soil and water conservation amount in Sichuan ecological red line areas reach up to 35 000 t·km-2·a-1above, which is significantly higher than that of other region of Sichuan region. The ecological red line zones cover an area of 64 938 square kilometres, accounting for 13.61% percent of Sichuan's total territory. The ecological red line of Sichuan area is concentrated in the mountain areas in the southwest Sichuan, mountain areas around the Sichuan basin, especially distributed centrally in Ya'an and Leshan prefecture situated in mountain areas in the southwest Sichuan. Survey results further indicate that the ecological red line zones show a similar spatial distribution patterns with area of evergreen broadleaf forest, which maintains high vegetation coverage. Thus our results suggest that the ecological red line demarcated in this study have an important ecological function of soil conservation, and the research method of demarcating ecological red line are of great importance for other regions of our country. It should be pointed out that this study is a beneficial attempt for demarcating of ecological red line. In fact, the demarcatiion of ecological red line is related not only to several factors such as regional eco-environmental condition, ecological security situation, regional resource and environment carrying capacity, but also to environmental protection goals and request of ecosystem. Therefore, when we demarcated the ecological red line, it is necessary to comprehensively consider all these factors.关键词
生态保护红线/水土保持/RUSLE模型/植被覆盖度Key words
ecological red line/water and soil conservation/RUSLE model/vegetation coverage分类
资源环境引用本文复制引用
柏松,景连东,冯文兰,牛晓俊..四川省水土保持生态保护红线划定方法研究[J].生态环境学报,2018,27(4):699-705,7.基金项目
四川省科技厅应用基础研究计划项目(2017JY0245) （2017JY0245）
中国西部民族经济研究中心项目(CWEER201505) （CWEER201505）
西南民族大学中央高校基本科研业务费专项资金项目(2018NQN44) （2018NQN44）
