Assessing the Importance of Water Conservation Function in Wuhan City Circle

  • 1. Hainan University, HaiKou 570228, China;
    2. Satellite Environment Application Center, Ministry of Environmental Protection, Beijing 100012, China;
    3. Chinese Research Academy of Environmental Sciences, Beijing 100012, China

Received date: 2013-10-30

  Revised date: 2013-12-10

  Online published: 2014-03-10


In this paper, we analyzed the influence of city development on the regional water conservation function in Wuhan City Circle. Taking the factors of vegetation, meteorology, terrain, soil and man-made into account, we respectively selected vegetation cover, precipitation, evaporation, slope, slope length, soil thickness and coverage types as the assessment indicators of water conservation function importance. Based on a combination of the expert judgment matrix and AHP, the index system was built. Furthermore, we applied RS and GIS spatial analysis technology to analyze the dynamic change and the spatial distribution of each factor importance on the water conservation function, and then comprehensively assessed the function importance. The results showed that the intensity of the water conservation function importance increased first and then decreased from 2000 to 2009 in Wuhan City Circle, the area of the most important water conservation function increased from 9283 to 16 131 km2, but then reduced to 11 258 km2, the area of the general important water conservation function increased dramatically, especially from 2005 to 2009 it grew by 1.1 times. The Northeast of the city circle and in the Southeast of the hilly areas were much more important, and the factor of human activities that caused the changes in vegetation cover and coverage types played an important role on the water conservation function in short time. Recently, lots of unreasonable activities, such as deforestation, grass destruction, and farming around the lake turned out. Because of a significant reduction in water area, forest and grass owning to urban expension, the water conservation function changed. The main reason why the water conservation function declined between 2005 and 2009 in Wuhan City Circle was that human being explored land irrationally which directly made a reduction in vegetation cover, and in areas of lakes and wetlands.

Cite this article

BAI Yang, CHU Dong, TIAN Liang, FENG Yu, ZHANG Zhe . Assessing the Importance of Water Conservation Function in Wuhan City Circle[J]. Journal of Geo-information Science, 2014 , 16(2) : 233 -241 . DOI: 10.3724/SP.J.1047.2014.00233


[1] 张彪,李文华,谢高地,等.森林生态系统的水源涵养功能及其计量方法[J].生态学杂志,2009,28(3):529-534.

[2] 欧阳志云,王如松,赵景柱.生态系统服务功能及其生态经济价值评价[J].应用生态学报,1999,10(5):635-640.

[3] Daily G C. What are ecosystem services. // Daily G C (ed.). Nature's services: Societal dependence on natural ecosystems[M]. Washington DC: Island Press, 1997:1-10.

[4] Black R E. Research issues in forest hydrology[J]. Journal of the American Water Resource Association, 1998,34(4):723-728.

[5] 刘世荣,孙鹏森,温远光.中国主要森林生态系统水文功能的比较研究(英文)[J].植物生态学报,2003,27(1):16-22.

[6] Burt T P, Swank W T. Flow frequency responses to grass conversion and subsequent succession[J]. Hydrological Processes, 1992,6(2):179-188.

[7] 刘敏超,李迪强,温琰茂,等.三江源地区生态系统水源涵养功能分析及其价值评估[J].长江流域资源与环境,2006,15(3):405-408.

[8] 王晓学,沈会涛,李叙勇,等.森林水源涵养功能的多尺度内涵、过程及计量方法[J]..生态学报,2013,33(4):1019-1030.

[9] 傅斌,徐佩,王玉宽,等.都江堰水淹涵养功能空间格局[J].生态学报,2013,33(3):789-797.

[10] 王晓学,李叙勇,莫菲,等.基于元胞自动机的森林水源涵养量模型新方法——概念与理论框架.生态学报,2010,30(20):5491-5500.

[11] Kareiva P,Tallis H,Ricketts T H, et al. Natural capital: Theory and practice of mapping ecosystem services[M]. New York: Oxford Univ Press,2011.

[12] 孙立达,朱金兆.水土保持林体系综合效益研究与评价[J].四川林业科技,2001,22(1):15-23.

[13] 聂忆黄,龚斌,衣学文.青藏高原水源涵养能力评估[J].水土保持研究,2009,16(5):210-212.

[14] 谢高地,鲁春霞,冷允法,等.青藏高原生态资产的价值评估[J].自然资源学报,2003,18(2):189-196.

[15] 张宏鸣,杨勤科,刘晴蕊,等.基于GIS的区域坡度坡长因子提取算法[J].计算机工程,2010,36(9):246-248.

[16] 孔亚平,张科利,曹龙熹.土壤侵蚀研究中的坡长因子评价问题[J].水土保持研究,2008,15(4):43-48.

[17] Leprieur C,Kerr Y H,Mastorchio S, et al. Monitoring vegetation cover across semi-arid regions comparison of remote observations from various scales[J]. International Journal of Remote Sensing,2000,21(2):281-300.

[18] 傅辉恩.森林土壤涵养水源功能的研究[J].林业科技通讯,1985(8):14-17.

[19] 姜文来.森林涵养水源的价值核算研究[J].水土保持学报,2003,17(2):36-40.

[20] 范世香,蒋德明,阿拉木萨,等.论森林在水源涵养中的作用[J].辽宁林业科技,2001,(5):22-25.

[21] 王春菊,汤小华.GIS支持下的水源涵养功能评价研究[J].水土保持研究,2008,15(2):215-217.