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成渝经济区土地利用变化对生态系统服务价值的影响
董会忠, 姚孟超
山东理工大学 管理学院, 山东 淄博 255000
摘要:
[目的] 评价成渝经济区土地利用变化引起的生态系统服务价值演变及其敏感性,以期为优化区域土地资源配置,保护生态环境,促进成渝经济区可持续发展提供理论支撑和经验借鉴。[方法] 以成渝经济区为研究对象,基于2005,2011,2017年3期的Landsat TM/ETM/OLI遥感影像数据,借助ArcGIS分析土地利用变化和生态系统服务价值的演变过程,并运用交叉敏感性系数法,研究土地利用变化对生态系统服务价值的敏感性程度。[结果] ①成渝经济区的土地利用之间的转换主要发生在耕地、林地、草地和建设用地之间,且耕地的土地利用动态度较大,约为40%;②研究期内,成渝经济区生态系统服务价值略有波动,呈现总体上升趋势,其中林地和耕地对生态系统服务价值的贡献率超过90%;③成渝经济区土地利用中水域与耕地之间的转换,交叉敏感性由2005年的2.06增加到2017年的2.15,表现出较强的敏感程度且有升高的趋势,水域与建设用地的转换导致的生态系统服务价值下降且交叉敏感性较强烈,意味着高强度的人类活动对生态系统服务价值产生较大影响。[结论] 应制定合理的土地利用政策,优化土地利用结构,实现成渝经济区生态环境一体化协调发展。
关键词:  土地利用变化  生态系统服务价值  交叉敏感性系数  成渝经济区
DOI:10.13961/j.cnki.stbctb.2020.01.031
分类号:X24
基金项目:国家自然科学基金项目"区域复合生态经济系统耦合效应与政策调控研究:以黄河三角洲高效生态经济区为例"(71371112);国家社会科学基金项目"‘2+26’市煤炭消费减量替代差异化路径与政策协同机制研究"(19BJY085)。
Impacts of Land Use Change on Value of Ecosystem Services in Chengdu-Chongqing Economic Zone
Dong Huizhong, Yao Mengchao
School of Business, Shandong University of Technology, Zibo, Shandong 255000, China
Abstract:
[Objective] The ecosystem service value and the sensitivity of ecosystem service values to land use changes in Chengdu-Chongqing economic zone were evaluated to provide scientific references for optimizing the allocation of regional land resources, protecting the environment, and promoting sustainable development.[Methods] Chengdu-Chongqing economic zone was selected as a case study. The evolution of land use type changes and ecosystem service values were studied using ArcGIS software, based on the Landsat TM/ETM/OLI remote sensing image data of 2005, 2011, and 2017. The sensitivity of land use type change to the ecosystem service value was analyzed using the coefficient of cross-sensitivity.[Results] ① The land use type conversion in the economic zone mainly occurred in cultivated land, forest land, grassland, and construction land, and the land use dynamics of cultivated land was relatively large with a value of about 40%; ②During the research period, the ecosystem service value in the economic zone slightly fluctuated, but showed an upward trend. The forest land and cultivated land contributed to the ecosystem service value for more than 90%; ③The coefficient of cross-sensitivity between water and cultivated land increased from 2.06 in 2005 to 2.15 in 2017 which the type of land use conversion in the economic zone showed high sensitivity and increasing trend. The ecosystem service value caused by the conversion of water and construction land decreased, and the coefficient of cross-sensitivity was high. The results indicate that human activities had a significant impact on the ecosystem service value.[Conclusion] Land use policies should be formulated to optimize land use structures and to manage the development of regional ecological environment integration in the Chengdu-Chongqing economic zone.
Key words:  land use change  ecosystem service value  coefficient of cross-sensitivity  Chengdu-Chongqing economic zone