| 基于LUCC的生态系统服务空间化研究——以张掖市甘州区为例 |
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| 作者姓名： | 梁友嘉 徐中民 钟方雷 宋晓谕 |
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| 基金项目： | 国家自然科学基金重大研究计划的重点支持项目(91125019);国家自然科学基金资助项目(40971291,40901292) |
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| 摘 要： | 生态系统服务(ES)评价为减缓或阻止人类活动导致的各种复杂生态问题提供了一种可能的方法,同时也有助于解决日益增加的各种土地利用冲突。以张掖市甘州区为例,运用一种新的空间化方法开展生态系统服务研究,并注重实现与土地利用研究的集成分析。首先根据研究区不同的群落生境和土地利用类型划分生态系统服务类型,然后检验不同土地利用类型和方式对各类生态系统服务供给的影响,最后分析该方法和数据的不确定性。结果表明:1)在灌区和甘州区两个尺度上,4类ES生产能力值均表现为:文化服务>支持服务>调节服务>供给服务;2)2000-2009年,4类ES供给都呈递减趋势,同时,城镇用地、路网建设等人类活动驱动的土地利用方式迅速增加,整个绿洲农业区处于过度开发状态;3)该方法可操作性强,多学科的数据和知识分析是ES研究的难点。
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| 关 键 词： | 生态系统服务 GIS 土地利用/覆盖变化 空间化 |
An spatial ecosystem services approach based on LUCC: a case study of Ganzhou district of Zhangye City |
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| Authors: | LIANG Youji XU Zhongmin ZHONG Fanglei and SONG Xiaoyu |
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| Abstract: | The assessment of Ecosystem Services(ES) is a relatively new scientific methodology, and it can offer a possible approach to the palliation and prevention of complex ecological problems caused by human activities and also helpful to the resolution of conflicts arising from land-use questions. Since Ecosystem Services were launched as a major conceptual tool in the Millennium Ecosystem Assessment (MEA, 2005), interest in them has been increasing rapidly. Despite the scientific as well as economic and political enthusiasm for the approach, only few case studies have as yet been published. We studied the interface between Ecosystem Services and landscape or land use planning in Ganzhou district of Zhangye city, in western Gansu province, integrating ES and land use is our core object. In the article, we present a visualization methodology and various data which can be used in applied research on Ecosystem Services. Firstly, we classify the Ecosystem Services offered by various biotopes and land use types of the study area, and then examine the effects of different land-use types and forms on the provision of ESs. On the basis of our results, we discuss the uncertainty of data and method, and suggest possible advantage and disadvantage of the approach in case studies. The results show that: 1) The four types of ES production capacity values were shown to: Cultural Services>Supporting Services>Regulating service>Provisioning services at two scales of the irrigated and Ganzhou District; 2) From 2000 to 2009, the four types of ES supply were decreasing, at the same time, urban land use and road network construction which driven by human activities were rapidly increasing, and the whole oasis of agricultural area had exploited overly; 3) The approach developed in this study is highly workable and reliable, and the difficult work is analysis of multi-disciplinary data and knowledge. This study may have some implications for the ES assessment of other zones. |
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| Keywords: | ecosystem service GIS LUCC spatialization |
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