湘西舞水河流域土地利用变化与环境状况分析

生态学杂志

湘西舞水河流域土地利用变化与环境状况分析

阳柏苏¹；廖中建²；欧阳志云³；何平⁴

¹怀化学院，怀化 418008；²湖南省农业厅，长沙 410005；³中国科学院生态环境研究中心系统生态重点实验室，北京 100085；⁴中南林业科技大学，长沙 410004

收稿日期:2006-05-09 修回日期:2006-06-29 出版日期:2006-08-10 发布日期:2006-08-10

Land use change and related environmental status in Wushuihe River Basin of West Hunan Province

YANG Bosu¹;LIAO Zhongjian²;OUYANG Zhiyun³; HE Ping⁴

¹Huaihua University, Huaihua 418008, China; ²Agriculture Department of Hunan Province, Changsha 4100052, China; ³Key Laboratory of Systems Ecology, Research Center for EcoEnvironmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;⁴Central South University of Forestry and Technology, Changsha 410004, China

Received:2006-05-09 Revised:2006-06-29 Online:2006-08-10 Published:2006-08-10

摘要/Abstract

摘要： 通过遥感分析，对舞水河流域土地利用变化及其主要生态环境状况进行了研究。结果表明，舞水河流域1986～2000年林地面积增加了12.69%, >25°的坡旱地减少了1.13×10⁴ hm²；耕地面积增加了16.31%，草地面积减少了98.10%；整个流域水土流失年增加速率为1.79%，中度侵蚀面积增幅高达77.75%；工业废水排放总量净增加2.50%，工业废气排放总量增加了1.37倍。针对上述问题，应加强灌木林地的保护和林下植被的恢复；控制水体和大气污染，重点加强煤烟型污染企业的整治；开展非点源污染控制，从小流域尺度对非点源污染进行综合整治。

关键词: Bemisia tabaci, Natural population, Life table, Index of population development trend, Exclusion index of population control.

Abstract: With the help of remote sensing, this paper analyzed the land use change and related ecological environment in Wushui River Basin of Hunan Province. The results indicated that in 1986-2000, the forestland of this basin increased by 12.69%, uplands with a slope larger than 25° reduced by 1.13×10⁴hm², and cultivated land and lawn increased by 16.31% and 98.10%, respectively. The annual increasing rate of water and soil erosion was 1.79%, with a moderately eroded area increased by 77.75%. Industrial wastewater discharge raised 2.5% annually, and industrial waste gas emission increased by 1.37 times. In light of these problems, more attention should be paid to the bush land protection and forest vegetation restoration, the control of water and air pollution with focus on the renovation of coal-smoke pollution enterprises, and the small scale integral management of non-point source contamination.

Key words: Bemisia tabaci, Natural population, Life table, Index of population development trend, Exclusion index of population control

阳柏苏；廖中建；欧阳志云；何平 . 湘西舞水河流域土地利用变化与环境状况分析[J]. 生态学杂志.

YANG Bosu¹;LIAO Zhongjian²;OUYANG Zhiyun³; HE Ping⁴. Land use change and related environmental status in Wushuihe River Basin of West Hunan Province[J]. cje.