长江流域资源与环境 >> 2018, Vol. 27 >> Issue (09): 1988-1997.doi: 10.11870/cjlyzyyhj201809010

• 生态环境 • 上一篇    下一篇

基于空间格局视角的武汉市土地生态系统服务价值研究

张丽琴1,2,3,渠丽萍2,吕春艳1*,李  玲2   

  1. (1. 中国土地勘测规划院,国土资源部土地利用重点实验室,北京 100035;2. 中国地质大学(武汉)公共管理学院,湖北 武汉 430074;3.渥太华大学地理系,渥太华 加拿大 KIN6N5)
  • 出版日期:2018-09-20 发布日期:2018-11-01

Study on Land Ecosystem Service Value in Wuhan With Spatial Structural Perspective

ZHANG Li-qin, QU Li-ping, LV Chun-yan, LI Ling   

  1. (1. Key Laboratory of Ministry of Land and Land Use, China Land Surveying and Planning Institute, Beijing 100035,China;2. School of Public Administration, China University of Geosciences (Wuhan), Wuhan 430074,China;3.Department of Geography,University of Ottawa, Ottawwa Canada KIN6N5)
  • Online:2018-09-20 Published:2018-11-01

摘要: 为区域生态环境质量提升和土地合理利用提供参考,以LandsatTM影像解译数据为基础,采用当量因子修正的生态系统服务价值评估模型、空间分析等方法,分析了武汉市1990~2016年4个时期土地生态系统服务价值变化特征及空间演变规律。结果表明:(1)武汉市生态系统服务价值呈先减少后增加态势,不同时期河流湖泊的生态系统服务价值始终最高,农田和坑塘湿地次之,这三类生态系统提供了武汉市85%以上的生态系统服务价值;(2)各乡镇生态系统服务总价值的空间分布特征表现为空间集聚,且相关性程度有递增的趋势;(3)各乡镇生态系统服务价值变化率的空间相关性在不断减弱,后期扩散效应显现;(4)中心城区生态系统服务价值空间分布不均衡的趋势在向郊区蔓延,乡镇的区位条件以及河流湖泊的占比与其地均生态系统服务价值的变化有密切的关系。研究显示,城市生态系统服务价值的空间分布受城市发展方向和土地利用结构影响较大,河流湖泊在改善城市生态环境方面具有重要作用。

Abstract: In order to provide reference for the improvement of regional ecological environment and rational utilization of land, this paper analyzed the characteristics and spatial evolution of land ecosystem service value during the four periods from 1990 to 2016 in Wuhan. Based on Landsat TM image interpretation data, this paper used adjusted equivalent factor valuation model of ecosystem service to compute ecosystem services value and further utilized spatial analysis tools to explore spatial features of the value changes. The results showed that: (1) The ecosystem services value in Wuhan showed a trend of first decreasing and then increasing. The ecosystem services value of rivers and lakes was always the highest in all periods, followed by that of farmland, pond and wetland. These three types of ecosystems provided Wuhan More than 85% of ecosystem service value. (2) The spatial distribution of the total value of ecosystem services in each township was characterized by spatial agglomeration and the degree of correlation tended to increase. (3) The spatial correlation of the ecosystem service value change rate in each township was weakened continuously. In the later stage, discrete effect appeared. (4) The unbalanced spatial distribution of ecosystem services in central urban areas tended to spread to the suburbs. The location conditions of townships as well as the proportion of rivers and lakes were closely related to the changes of the total value of ecosystem services in urban areas. The research showed that the spatial distribution of urban ecosystem services value was greatly influenced by the urban expansion directions and the change of land use structure. Rivers and lakes played an important role in improving urban ecological environment.

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