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冰川冻土 ›› 2016, Vol. 38 ›› Issue (5): 1432-1439.doi: 10.7522/j.issn.1000-0240.2016.0168

• 生态经济与可持续发展 • 上一篇    下一篇

基于地形梯度的陕西省生态系统服务价值评估

王晓峰1,2, 薛亚永1,3, 张园1,3   

  1. 1. 长安大学 地球科学与资源学院, 陕西 西安 710054;
    2. 陕西省灾害监测与机理模拟重点实验室, 陕西 宝鸡 721016;
    3. 中国科学院 生态环境研究中心 城市与区域生态国家重点实验室, 北京 100085
  • 收稿日期:2016-03-21 修回日期:2016-07-28 出版日期:2016-10-25 发布日期:2017-01-22
  • 作者简介:王晓峰(1977-),男,甘肃平凉人,副教授,2007年在陕西师范大学获博士学位,从事生态遥感方面的教学与科研.E-mail:wangxf@chd.edu.cn.
  • 基金资助:

    高分辨率对地观测系统重大专项(30-Y30B13-9003-14/16);陕西省自然科学基金项目(2014JM5211);中央高校基本科研业务费高新研究项目(自然科学类)(310827162026)资助

Assessing the ecosystem service values in Shaanxi Province based on terrain

WANG Xiaofeng1,2, XUE Yayong1,3, ZHANG Yuan1,3   

  1. 1. School of Earth Science and Resources, Chang'an University, Xi'an 710054, China;
    2. Shaanxi Key Laboratory of Disaster Monitoring and Mechanism Simulation, Baoji 721016, Shaanxi, China;
    3. State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
  • Received:2016-03-21 Revised:2016-07-28 Online:2016-10-25 Published:2017-01-22

摘要:

为评估陕西省生态系统服务价值在地形梯度上的分布及变化趋势,利用2000、2010年土地利用DEM数据,定量探讨了陕西省生态系统服务价值的时序变化和空间分布特征,并对陕西省整体生态经济协调度进行分析.结果表明:2000-2010年,陕西省生态系统服务价值增加了10.92亿元,其中林地和草地生态系统服务价值分别增加21.40亿元和23.16亿元,耕地生态系统服务价值减少34.16亿元;在地形梯度上,生态系统服务价值呈中间高、南北低的分布特征,且主要集中于坡度为0°~14.6°,高程为1 067~1 380 m的地形梯度单元内.单项生态系统服务价值中,废料处理和食物生产生态系统服务价值因耕地减少而损失严重,共减少6.08亿元.生态经济协调度评估结果表明:区域生态经济的发展整体趋于不协调,建议在经济发展的同时加强对生态环境的保护力度.

关键词: 地形梯度, 生态系统服务, 生态价值, 陕西省

Abstract:

The purpose of this study is to assess the distribution and variation trend of ecosystem services values with terrains in Shaanxi Province. Land use status was evaluated on the basis of land use information and DEM data of 2000 and 2010. The sequential variation as well as spatial distribution pattern of ecosystem services was quantitatively analyzed by reference to"ecosystem service value equivalent per unit area of Chinese terrestrial ecosystem" with ArcGIS. Simultaneously, eco-economic harmony index (EEH) of the province was also evaluated. It is found that from 2000 to 2010, the ecosystem service value had increased 1.09 billion yuan, among which ecosystem service value in forest land and grassland had increased 2.14 billion and 2.32 billion yuan, respectively, while that in cultivated land had decreased 3.42 billion yuan. As regards the terrain and gradient, ecosystem service value shows a decreasing tendency northwards and southwards from the center, and concentrates on the regions with gradient of 0°-14.6° and on the elevation ranges of 1 607-1 380 m. As for the single ecosystem service value, waste disposal and food production has severely decreased 0.61 billion yuan owing to sharp decline of cultivated land. The results of EEH show that the ecological economy in Shaanxi Province is tending to be no harmonious as a whole. Thus, it is of great necessity to put emphasis up on ecological environmental protection and economy development.

Key words: terrain gradient, ecosystem service, ecological value, Shaanxi Province

中图分类号: 

  • X826