长江流域资源与环境 >> 2014, Vol. 23 >> Issue (05): 626-.doi: 10.11870/cjlyzyyhj201405005

• 自然资源 • 上一篇    下一篇

平原河网区河流连通性评价研究

孟慧芳, 许有鹏, 徐光来, 张兴奇   

  1. (1.南京大学地理与海洋科学学院,江苏 南京 210023; 2.安徽师范大学国土资源与旅游学院,安徽 芜湖 241000)
  • 出版日期:2014-05-20

STUDY ON RIVERS CONNECTIVITY EVALUATION IN PLAIN RIVER NETWORK AREA

MENG Huifang1, XU Youpeng1, XU Guanglai1,2, ZHANG Xingqi1   

  1. (1.School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210023,China;2.College of Territorial Resources and Tourism, Anhui Normal University, Wuhu 241000,China
  • Online:2014-05-20

摘要:

河流连通性对流域水文过程特征、水环境条件以及河湖蓄泄能力等有较大影响。平原河网地区是河流高度发育并受到城市化等人类活动深刻影响的区域,并且区域内水系结构破坏、河流连通受阻已成为洪涝灾害频发的重要原因之一。为此通过对现有的河流连通评价方法的分析,尝试建立基于水流阻力与水文过程的平原河网河流连通性评价方法,并以鄞东南平原河网为例开展了应用分析,结果表明2010年的河流连通性比1990年的明显减小。同时,通过对比分析几种河流连通性评价方法可以看出,基于水流阻力与水文过程的河流连通性评价方法能较好的评价平原河网区河流连通性,评价结果优于其他方法计算结果,更符合实际情况,可为平原河网区河流连通性定量评价提供参考

Abstract:

River connectivity has a great influence on characteristics of watershed hydrological processes, water environmental condition and the capacity of lakes drainage storage, etc. At present, the connectivity of a riverlake system has become the new strategy to promote water safety management in our country. Drainage structure damage and increasing connectedness of rivers have become one of the most important causes of frequent floods and waterlogging in plain river network regions which are highly developed and deeply influenced by urbanization and human activities. Therefore through the analysis of the existing river connected evaluation method, we proposed a new river connectivity evaluation method of plain river network based on the flow resistance and hydrological processes. Based on the river system of three periods of 1990, 2003 and 2010, the proposed approach has been tested on a river network of the Yin southeast plain. The results indicated that the rivers connectivity decreased more significantly in 2010 than in 1990. At the same time, by analyzing and contrasting several rivers connecting evaluations methods, it can be seen that river connectivity evaluation method based on water flow resistance and the hydrological processes can evaluate rivers connectivity of the plain river network area better, and the calculation result is superior to that from other methods because it coincides better with the actual situation. The river network connectivity evaluation method based on water flow resistance and river hydrological processes can evaluate river connectivity and on the corresponding relationship to rainfallrunoff synthetically. It can well explain the influence the river connected degree on flood drainage, and river connected degree is higher, the ability of river flood and waterlogging drainage is stronger. The study can provide the reference for rivers connectivity quantitative evaluation of the plain river network area

No related articles found!
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] 李燕玲, 刘爱民. 长江流域冬季农业主要作物的耕地竞争机制及案例研究[J]. 长江流域资源与环境, 2009, 18(2): 146 .
[2] 解晓南,许朋柱,秦伯强. 太湖流域苏锡常地区地面沉降若干问题探析[J]. 长江流域资源与环境, 2005, 14(1): 125 -131 .
[3] 简敏菲,弓晓峰,游 海,黄志中,朱 捷. 鄱阳湖水土环境及其水生维管束植物重金属污染[J]. 长江流域资源与环境, 2004, 13(6): 589 -593 .
[4] 王海英,宫渊波,陈林武. 不同植被恢复模式下土壤微生物及酶活性的比较——以嘉陵江上游地区为例[J]. 长江流域资源与环境, 2006, 15(2): 201 -206 .
[5] 向云波,徐长乐,彭秀芬. 长江三角洲城市群循环经济发展水平的空间格局分析[J]. 长江流域资源与环境, 2008, 17(5): 661 .
[6] 刘方炎,李 昆,马姜明,. 金沙江干热河谷几种引进树种人工植被的生态学研究[J]. 长江流域资源与环境, 2008, 17(3): 468 .
[7] 张 强.
近40年来长江流域水沙变化趋势及可能影响因素探讨
[J]. 长江流域资源与环境, 2008, 17(2): 257 .
[8] 袁旭音. 污染河道的常量和微量元素特征及指示意义[J]. 长江流域资源与环境, 2008, 17(2): 270 .
[9] 张其成,姚亦锋,蒋成煜. 南京城市滨江带功能演变及现代景观规划研究[J]. 长江流域资源与环境, 2004, 13(1): 30 -34 .
[10] 胡鸿兴,康洪莉,贡国鸿,朱觅辉5,郑文勤5,吴法清,何定富,李振文,耿 栋5. 湖北省湿地冬季水鸟多样性研究[J]. 长江流域资源与环境, 2005, 14(4): 422 -428 .