基于生态系统格局变化的东西部结合区生态服务价值评价——以珠江—西江经济带为例
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中国科学院战略性先导科技专项(A类)地球大数据科学工程专项数字一带一路项目“一带一路生态环境监测与评估”(XDA19030301);国家重点研发计划项目“华南地区土地覆被遥感监测”(2016YFC0500201-07);河南省科技攻关项目(192102310025);河南省哲学社会科学规划项目(2017BTY007);河南省高等学校重点科研项目支持计划(18B890001);河南理工大学年度项目(SKND2018-05);河南理工大学博士基金(SKB2016-10)


Evaluation of Ecological Service Value of East-West Combined Area Based on Changes of Ecosystem Pattern—A Case Study in Pearl River-Xijiang River Economic Zone
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    [目的] 以珠江—西江经济带为例,分析典型东西部结合区生态系统格局变化特征以及对其生态系统服务价值进行评价,为积极构建区域生态安全格局和开展生态补偿研究提供科学依据。[方法] 基于珠江—西江经济带2000—2015年生态系统类型数据,采用生态系统类型年均变化率、生态系统类型转移矩阵研究其生态系统格局变化特点;参考生态系统服务价值估算方法,对研究区近15 a来的生态服务价值进行评价与分析。[结果] ①2000—2015年珠江—西江经济带以森林和农田生态系统为主,生态系统空间分布格局较稳定,变化的部分主要体现在东部人工表面生态系统的扩张上。②近15 a间农田和草地生态系统面积下降最多,湿地下降较少,其余生态系统类型面积均有不同程度地增加。生态系统类型转换主要发生在森林、农田和人工表面生态系统三者之间。③2000—2015年珠江—西江经济带生态服务价值减少了14.55亿元,其中草地生态系统服务价值下降最多,森林生态系统服务价值增加最多。④珠江—西江经济带各县区生态服务价值空间分布格局稳定,但东部地区单位面积生态服务价值有持续下降的趋势。[结论] 2000—2015年珠江—西江经济带东部生态系统格局变化对其生态服务价值下降产生了较大影响。今后在生态建设方面需重点合理控制东部人工表面生态系统面积的扩张速度,预防其生态服务价值持续下降。

    Abstract:

    [Objective] Taking the Pearl River-Xijiang River economic zone as an example, this paper analyzed the change of ecosystem pattern and evaluated its ecosystem service value in the typical east-west junction area, in order to provide a scientific basis for the construction of the regional ecological security pattern and ecological compensation research.[Methods] Based on the data of ecosystem types in the Pearl River-Xijiang River economic zone from 2000 to 2015, the change characteristics of ecosystem pattern were studied by using the annual average change rate and the transfer matrix of ecosystem types. The ecosystem service value in the research area was evaluated and analyzed in the past 15 years.[Results] ① During 2000-2015, the Pearl River-Xijiang River economic zone was dominated by forest and farmland ecosystems, and the spatial distribution pattern of ecosystems was relatively stable. The changes were mainly the expansion of the eastern artificial surface ecosystem. ② The area of farmland and grassland ecosystems decreased the most, while the wetland decreased least, and the area of the other ecosystem types increased in varying degrees. The conversion of ecosystem types mainly occurred between forest, farmland and artificial surface ecosystems. ③ From 2000 to 2015, the ecosystem service value in the Pearl River-Xijiang River Economic Zone decreased by 1.455 billion RMB, of which the value of grassland ecosystem service declined the most, while the value of forest ecosystem service increased the most. ④ The spatial distribution pattern of ecosystem service value in the counties and the districts of the Pearl River-Xijiang River economic zone was stable, but the ecosystem service value of per unit area in the eastern region showed a continuous decline trend.[Conclusion] The changes in the ecosystem pattern in the eastern part of the Pearl River-Xijiang River economic zone from 2000 to 2015 had a great impact on the decline of its ecosystem service value. In the future, it is necessary to control the expansion rate of the area of the artificial surface ecosystem in the east, to prevent the continuous decline of ecological service value.

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肖红克,王莉,李洪忠,陈劲松,韩宇.基于生态系统格局变化的东西部结合区生态服务价值评价——以珠江—西江经济带为例[J].水土保持通报,2019,39(6):252-259,266

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  • 收稿日期:2019-06-21
  • 最后修改日期:2019-08-05
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  • 在线发布日期: 2020-01-17
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