长江流域资源与环境 >> 2020, Vol. 29 >> Issue (1): 90-100.doi: 10.11870/cjlyzyyhj202001009

• 自然资源 • 上一篇    下一篇

基于土地利用的三峡库区生态系统服务价值时空格局分析

王大菊1 ,卫海燕1* ,贺  敏2,辜  清3,马明国3,李  晶1   

  1. (1.陕西师范大学地理科学与旅游学院,陕西 西安 710119; 2. 中国科学院大学,中国科学院遥感科学国家重点实验室,北京 100101; 3.西南大学地理科学学院,重庆 400715)
  • 出版日期:2020-01-20 发布日期:2020-03-24

Temporal and Spatial Patterns of Ecosystem Services Value in the Three Gorges Reservoir Area Based on Land Use

WANG Da-ju1, WEI Hai-yan1, HE Min2, GU Qing3, MA Ming-guo3,LI Jing1   

  1. (1. School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China; 2. State Key Laboratory of Remote Sensing Science, Chinese Academy of Sciences, Beijing 100101, China; 3. School of Geography Sciences, Southwest University, Chongqing 400715, China)
  • Online:2020-01-20 Published:2020-03-24

摘要: 生态服务价值评估是对生态功能的一种经济性量化评价。以三峡库区为研究区,结合净初级生产力(NPP)、土地利用/土地覆盖变化(LUCC)、遥感(RS)、气候、国家统计数据和GIS技术,采用替代花费法、影子工程法、碳税法、市场价值法和水量平衡法对三峡库区蓄水前后4个时期(2000、2005、2010和2015年)的生态系统服务价值进行量化评估,分析库区生态系统服务价值时空变异格局。结果显示: (1)从2000年到2015年,三峡库区生态服务总价值增加了269.37亿元,增长率为15.32%。(2)其中林地生态系统贡献较高,占48.14%,耕地次之,占44.04%。(3)林地生态系统服务价值随其面积的增长而增加。耕地生态系统面积减少了4.64%,但生态系统服务总价值却增加了14.54%,耕地存在不合理利用的现象。草地生态系统面积减少了16.57%,生态系统服务总价值减少了5.01%,应加强对草地生态系统的保护。总之,三峡工程的实施在整个研究区尺度上对库区生态系统服务功能的影响是利大于弊。在未来的发展中,应合理规划土地利用,制定区域发展和环境保护计划,确保三峡库区生态环境的改善和可持续发展。

Abstract: The evaluation of ecological service value is a kind of economic quantitative assessment of ecology function. This paper employed various methods including replacement engineering method, shadow engineering method, carbon tax law, market value method and water balance method to evaluate the ecological services value of the natural resources in the Three Gorges Reservoir (TGR) based on the net primary productivity dataset (NPP), land use/land cover change (LUCC), Remote Sensing data, climate data and statistical data in 2000, 2005, 2010 and 2015, with GIS technology, respectively. And analyze of changes in its temporal and spatial patterns. The results show, from 2000 to 2015, the total value of ecological services in this area increased by 26.937 billion yuan, with a growth rate of 15.32%. The most contribution to total value was made by forest ecosystem with a proportion of 48.14%, followed by cropland with 44.04%. The changing value of forest ecosystem services is mainly correlated with expanding forest area. The area of cropland decreased by 4.64%, whereas the total services value of cropland increased by 14.54%, which means that croplands in this region were used unreasonably. As for grassland, the area decreased by 16.57% along with 5.01% decrease of services value, for which protection of grassland ecosystems should be strengthened. Overall, the implementation of the TGR has a greater impact on the ecosystem services than the disadvantages on the reservoir area globally. Reasonable and efficient land use plan and environment protection plan should be made to ensure the security of the TGR, sustainable economic, and ecological development in the future.

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