广西河池地区人类干扰下的河流生境破碎化评价  

Assessment of River Habitat Fragmentation Disturbed by Human Active in Hechi,Guangxi,China

作　　者：周伟[1] 刘恺[1] 李凤莲 蓝家湖 

机构地区：[1]西南林业大学保护生物学学院云南省森林灾害预警与控制重点实验室,云南昆明650224 [2]国际野生生物保护学会,广东广州510260 [3]广西都安县水产局,广西河池530700

出　　处：《广西师范大学学报（自然科学版）》2010年第4期90-95,共6页Journal of Guangxi Normal University:Natural Science Edition

基　　金：国家环境保护部和美国大自然协会联合资助项目(AP/SSC070106);中国香港特别行政区嘉道理农场暨植物园奖学金资助项目(208604)

摘　　要：借鉴河流生态系统完整性评价的指标体系,初步构建包含10个指标的河流生境破碎化评价的指标体系。通过调查、收集数据对指标进行筛选和赋值,确立包含4个指标的适合河池地区的河流生境破碎化评价指标体系。经层次分析法对指标赋予权重后,应用该指标体系对该地区的部分河流(河段)进行评价,结果表明:小环江为较小程度破碎化;红水河、龙江和大环江为中度破碎化;刁江为较大程度破碎化。研究得出的指标体系是针对目前河池及周边地区河流生境破碎化状况的一种快速评估。根据指标调查的结果,提出了该地区河流生境保护的建议。This study used the index system of river ecosystem integrity for reference to construct a preliminary index system of river habitat fragmentation,which included 10 indices.By surveying and collecting data,the indices were filtrated and scored.Then an index system of river habitat fragmentation suitable for the area was built,which contained 4 indices.After these indices were weighted by AHP,the system was used to assess some rivers（reaches） in the area.The result of assessment revealed that the degree of habitat fragmentation in Xiaohuanjiang River was lesser;in Hongshuihe River,Longjiang River and Dahuanjiang River,that was moderate;in Diaojiang River,that was greater.This index system was just a rapid assessment used for the present status of river habitat fragmentation in Hechi and its surrounding areas.Some suggestions for river habitat protection were given according to the results of indices survey.

关 键 词：河流 生境破碎化 评价 指标体系 

分 类 号：X821[环境科学与工程—环境工程]