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白洋淀流域生态系统服务评估及其调控
引用本文:白杨,郑华,庄长伟,欧阳志云,徐卫华.白洋淀流域生态系统服务评估及其调控[J].生态学报,2013,33(3):711-717.
作者姓名:白杨  郑华  庄长伟  欧阳志云  徐卫华
作者单位:1. 上海市环境科学研究院应用生态研究所,上海,200233
2. 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
3. 环境保护部南京环境科学研究所,南京,210042
基金项目:国土资源部公益性行业科研专项项目(201011018);中国科学院国际合作项目(GJHZ0948);戈登和贝蒂摩尔基金
摘    要:政策制定者在制定土地利用相关政策时需要权衡各方面的利益关系,协调资源保护和经济发展之间的关系.由于缺乏有效的评价与权衡办法,目前对这方面研究还较少.采用InVEST模型,评价了白洋淀流域7种服务功能指标,分析了其空间分布特征.通过情景(政策情景与保护情景)分析,较好的反映了农业直接经济收入与服务功能之间的关系.结果表明:生物多样性、水源涵养、土壤保持和固碳重要区域主要分布在流域西部、北部和流域中部山区;水质保护和授粉重要区域主要分布于流域东部、南部和中部平原区.政策情景下,产水量第二,农业产出有所下降,固碳能力较保护模式差,N/P输出最少.保护情景下产水量最大,农田产出价值不变,氮磷保持与政策情景差不多,但固碳效果最好.通过权衡不同情景下服务功能得失,筛选既不损害流域居民实际经济收入,又能使得水文服务功能得到提高的管理模式.研究表明InVEST模型可以很好的用于对自然资本评估和空间化特征分析,通过建立不同情景,评价结果可以用于权衡不同管理策略下服务功能得失,是一种评价和预测自然资本变化的有效方法,对政策制定和策略筛选具有重要的指导意义.

关 键 词:InVEST模型  权衡  生态系统服务
收稿时间:2012/3/27 0:00:00
修稿时间:2012/10/23 0:00:00

Ecosystem services valuation and its regulation in Baiyangdian baisn: Based on InVEST model
BAI Yang,ZHENG Hu,ZHUANG Changwei,OUYANG Zhiyun and XU Weihua.Ecosystem services valuation and its regulation in Baiyangdian baisn: Based on InVEST model[J].Acta Ecologica Sinica,2013,33(3):711-717.
Authors:BAI Yang  ZHENG Hu  ZHUANG Changwei  OUYANG Zhiyun and XU Weihua
Institution:Shanghai Academy of Environmental Sciences, Institute of Applied Ecology, Shanghai 200233,China;State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;Nanjing Institute of Environmental Sciences,Ministry of Environmental Protection,Nanjing 210042,China;State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
Abstract:Ecosystem services are benefits humans derive from natural ecosystems, which include provisioning services, regulating services, supporting services and cultural services. However, ecosystem services are undergoing degradation with the population growth and economic development. Moreover the increase of ecosystem provisioning services usually is at the expense of the other services, especially the regulating services. One of the great challenges faced by the decision-makers was that how to tradeoff the multiple ecosystem services through the informed management. We map seven ecosystem services (agricultural production, biodiversity conservation, water conservation, soil retention, carbon sequestration, water provisioning and pollination) in Baiyangdian watershed and analyze their tradeoffs based on the scenario analysis by using InVEST models, which enable decision-makers to assess the tradeoffs associated with alternative choices and to identify areas where investment in natural capital can enhance human development and conservation in terrestrial, freshwater, and marine ecosystems. The results showed that the western and northern areas provided higher services in biodiversity conservation, carbon sequestration, soil retention and water conservation than other areas, while the eastern and southern area provided higher services in N/P retention and pollination in Baiyangdian watershed. Under sloping land conservation scenario, N/P retention services increase greatly, however agricultural production decreases and carbon sequestration service is lower than that under conservation scenario. Under conservation scenario, the services in water provisioning, N/P retention and carbon sequestration increase with no impact on agricultural production. Our research presents an initially analytical framework for integrating direct benefits and ecosystem regulating services in policy design. InVEST models provide an effective approaches to map and tradeoff ecosystem service bundle, and then provide informed management for decision-makers.
Keywords:InVEST model  tradeoff  ecosytem service
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