| 萨茹拉,刘来胜,霍炜洁,殷淑华,李志萍.北方缺水河流生境质量评价研究—以妫水河为例[J].中国水利水电科学研究院学报,2019,17(2):81-89 |
| 北方缺水河流生境质量评价研究—以妫水河为例 |
| Evaluation of habitat guality of rivers with shortage of water in northern region: A case study of Guishui river |
| 投稿时间：2018-07-26 |
| DOI：10.13244/j.cnki.jiwhr.2019.02.001 |
| 中文关键词: 北方缺水河流 指标体系 生境评价 妫水河 |
| 英文关键词:northern river index system habitat evaluation Guishui River |
| 基金项目:妫水河世园会及冬奥会水质保障与流域生态修复技术和示范项目（2017ZX07101004） |
|
| 摘要点击次数: 1231 |
| 全文下载次数: 1735 |
| 中文摘要: |
| 北方地区由于缺水干旱、城市化进程发展和人为活动等影响导致河流生境退化严重，现有评价体系和方法不能很好地反映河流生境状况，基于此，构建了包括河流形态结构、水质水量、河岸带状况、景观环境、水生生物5个方面共13项指标的北方河流生境质量评价指标体系，确定了各指标的等级划分及生境质量综合指数计算方法。结合北京市延庆区妫水河生境调查结果，对流域内选取的妫水河干流及3条支流按照河流河段尺度分为缓坡型、山区型和城区型河段，并利用构建的评价体系和方法开展具体评价。结果表明：（1）研究区域13个样点的河流生境质量状况差异显著，约46.2%的样点河流生境质量处于好等级，约15.4%的样点为较好等级，约7.7%的样点为一般等级，约23.1%样点为较差等级，约7.7%的样点为最差等级。（2）缓坡型河段的生境质量明显优于山区型河段和城区型河段，其生境等级为“好”，山区型和城区型河段的生境等级均为“较差”，表明河流水量和人类负面干扰对河流生境影响较大。（3）该评价指标体系适合北方缺水干旱的特殊生境状况，其评价结果较为直观的反映了河流生境现状，兼备科学性和可操作性。 |
| 英文摘要: |
| Due to the water shortage and the drought, development of urbanization and human activities in the northern region, the degradation of river habitats is serious. The existing evaluation systems and methods cannot reflect the conditions of river habitat well. Based on this situation, an evaluation index system of river habitat quality in the northern region is established, which includes 13 indicators from 5 aspects, including river morphology structure, water quality and quantity,riparian zone conditions,landscape environment and aquatic organisms. The grade classification of each index and the calculation method of comprehensive index of habitat quality are determined. Based on the habitat survey results of the Guishui River in Yanqing District of Beijing, the main stream and three tributaries of the Guishui River selected in the basin are classified into the type of gentle slope, mountain area and urban area according to the river reach scale, and the constructed evaluation systems and methods are used to carry out specific evaluation. The results show that:(1) There are significant differences in the quality of river habitat among the 13 sampling sites in the study area. About 46.2% of the sampling sites are in very good grade, about 15.4% in good grade, about 7.7% in general grade, about 23.1% in poor grade, and about 7.7% in the worst grade. (2) The habitat quality of gentle slope reach is obviously better than that of mountain reach and urban reach, and its habitat grade is "Good" while the habitat grade of mountain reach and urban reach are both "Poor", which indicates that river water quantity and human negative interference have great influence on river habitat. (3) The evaluation index system is suitable for the special habitat conditions of water shortage and drought in the northern region. The evaluation results can reflect the current conditions of river habitat intuitively, which are both scientific and operable. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
