基于影响因素分析的洪河湿地及周边农场退化评价

发布时间：2018-07-08 19:04

  本文选题：影响因素 + 层次分析法　； 参考：《科学技术与工程》2017年28期

【摘要】：基于对洪河湿地退化的影响因素分析,采用层次分析法确定评价指标及各指标权重,进而用综合指标法对洪河湿地退化进行评价和退化分级。结果表明:洪河湿地退化的影响因素包括气温、大气降水量、湿地水质、湿地水量、水利工程建设和农场建造,其中水利工程建设与农场建造所占权重最大,分别为0.239与0.339;2014年洪河湿地周边各农场退化等级均为Ⅳ级,退化程度高,处于重度退化且有向极度退化发展的趋势;同年,洪河湿地保护区内综合评价指数降至0.811退化等级降为Ⅱ级,为轻度退化。为减缓湿地退化速率,应杜绝洪河湿地内耕地及排干渠扩建。
[Abstract]:Based on the analysis of the influencing factors of the degradation of Honghe wetland, the evaluation index and the weight of each index are determined by AHP, and then the degradation of Honghe wetland is evaluated and classified by comprehensive index method. The results show that the factors influencing the degradation of Honghe wetland include temperature, atmospheric precipitation, wetland water quality, wetland water quantity, water conservancy project construction and farm construction, among which water conservancy engineering construction and farm construction are the most important factors. In 2014, all the farms around Honghe Wetland were grade 鈪，

本文编号：2108453