挠力河流域河流生境质量评价  

Assessment of stream habitat quality in Naoli River Watershed,China

作　　者：王建华[1,2,3] 田景汉[2] 吕宪国[4] 

机构地区：[1]地表过程与资源生态国家重点实验室北京师范大学,北京100875 [2]沧州师范专科学校,沧州061001 [3]北京师范大学资源学院,北京100875 [4]中国科学院湿地生态与环境重点实验室东北地理与农业生态研究所,长春130012

出　　处：《生态学报》2010年第2期481-486,共6页Acta Ecologica Sinica

基　　金：国家自然科学基金重点资助项目(40830535);国家自然科学基金资助项目(40971110)

摘　　要：选择挠力河流域6个河段21个样点进行河流生境质量调查和评价。采用包括河水、河道和人类干扰等3大项目共11项评价指标,涵盖河流水量、水质和速度与深度组合,河道形状、结构、侵蚀程度和植被状况,河岸人类活动、周围土地利用以及水工设施等河流生境质量评价指标系统,进行河流生境质量评价。结果显示,全流域47.6%的样点河流生境质量处于优等或良好等级,33.3%的样点为一般等级,约19.1%的样点为较差等级,没有最差等级的样点。研究表明,挠力河流域河流生境质量整体状况良好,个别样点生境质量较差;河流生境质量受到周围土地利用的重要影响;河流生境质量与河流水质及河流生物完整性密切相关。有关河流生境评价的指标与标准以及参照系等研究有待深入。Based on data collected from 21 sample sites in 6 sections of the Naoli River,this paper assesses the river＇s habitat quality using the Index of Stream Habitat Quality（ISHQ）which includes 3 groups of indices：（1）stream water dimension（flow volume,water quality,index combining flow speed and water depth）;（2）channel-riparian dimension（shape,structure and degree of erosion of the channel and riparian vegetation）;（3）human disturbance dimension（human activities along the bank,land use,hydraulic facilities）.Our findings show that the stream inhabitant quality in the Naoli River is in a good condition with few sites in poor condition.The habitant quality with ranking score of ＇excellent and very good＇ is accounted for 47.6 percent of the sampling sites,33.3 percent with ranking score of ＇average＇ and 19.1 percent with ranking score of ＇poor＇.There is no site in this catchment with ranking score of ＇very poor＇.This paper concludes that the quality of stream habitat in the Naoli River catchment has been strongly influenced by the land use and land cover in the surrounding areas and is also closely related to the water quality and biological integrity.The paper also highlights the further research direction：to establish index system and criteria for stream inhabitant quality assessment and to set up standardized reference conditions for the key assessment indices.

关 键 词：河流生境 生境评价 河流生境质量指数 挠力河流域 

分 类 号：X824[环境科学与工程—环境工程] P941.78[天文地球—自然地理学]