基于RBPs的广东省典型中小河流生境评价

Habitat Evaluation for Typically Small and Medium Rivers in Guangdong Province Based on RBPs

引入美国快速生物评估协议(RBPs)生境部分,以广东省韶关市境内重阳河及柳坑河为调查对象开展生境评价,对包括河床表层生境、河床泥沙组成、流速与水深参数、河床稳定性、河流形态改造和蜿蜒程度、河道水流情况、河岸稳定性,河岸植被保护和河岸植被带宽度等10个指标开展现场调查和统计分析。研究结果显示广东省韶关市境内重阳河及柳坑河整体生境质量优良,"较差"的占14.89%,"一般"的占36.17%,"较好"的占40.42%,"好"的占8.5%。并根据河流生境状况,提出了相应的修复措施与建议。

The habitat in the rapid biological evaluation protocol （RBPs） is introduced in this study, and Chongyang River and Liukeng River （both are located in Shaoguan, Guangdong province ） are taken as research projects for its habitat evaluation. In these sections, field investigation is carried out, and about ten indicators are statistical analyzed, including the riverbed surface habitat, sediment composition, flow velocity and water depth parameters, riverbed stability, river morphology transformation and winding degree, river flows, river stability, the protection of riparian vegetation and the width of riparian vegetation. Research results show that the conditions of habitat in Liukeng River and Chongyang River are better. Moreover, ＂poor condition＂ accounts for 14. 89% , and ＂ general condition＂ accounts for 36. 17% , and ＂ better condition＂ accounts for 40. 42% , and ＂ good condition＂ accounts for 8. 5%. According to the river habitat conditions, ecological restoration measures and suggestions are proposed correspondingly.