摘要
本文以河北省黄骅市为案例,针对城镇化进程中空间城镇化导致的土地利用变化,从数量变化和人类活动强度影响两方面定量分析城镇化对生态系统服务价值的影响。结合生态系统服务价值流向损益矩阵,建立城镇化对生态系统服务价值影响程度评估模型,评估空间城镇化对生态系统服务价值的影响;并引入人类活动强度指数(HAI),对区域生态系统服务价值受人类活动干扰的空间分异特征进行分析。结果表明:城市扩展对生态系统服务价值影响显著;从生态系统服务价值流向损益来看,城镇化造成的建设用地转入使生态系统服务价值损失较大,1990—2011年城镇扩展共减少7656万元,占生态系统服务价值损失总量的44.57%;在空间上,黄骅市人类活动强度表现为低影响强度、中高影响强度占主导,高影响强度多集中于黄骅市区周边和东部近海地区的分布特征;1990—2011年,总人类活动强度呈现持续升高的趋势,平均提高了21.43%。其中活动强度变化较大的区域也是城镇化发展较快区域,其HAI增幅可达50%以上。
Taking Huanghua City as an example, the impacts of spatial and quantitative land use changes on ecosystem service values during urbanization were analyzed. We developed an ecosystem service flow gain-and-loss matrix and established an assessment model to assess the impacts of urbanization on ecosystem service values. Meanwhile, a human activity intensity index （HAI） was introduced to analyze the spatial differentiation of regional ecosystem service values resulting from the interference of human activities. The results showed that increased urbanization significantly affected the value of ecosystem services. From the flow of ecosystem service value gains and losses, the construction land due to the urbanization resulted in ecosystem service value losses of 76.56 million yuan, which accounted for 44.57% of the total decreased value of ecosystem services during 1990-2011. Spatially, human activity intensity was dominated by low impact strength and high impact strength, and high impact strength mainly distributed in surrounding and eastern coastal areas of Huanghua City. During 1990-2011, the total disturbance continued to increase, with an average increase of 21.43%. The area with great change of activity intensity was also the region with rapid urbanization, with an increase of HAI over 50%.
出处
《生态学杂志》
CAS
CSCD
北大核心
2017年第5期1374-1381,共8页
Chinese Journal of Ecology
基金
城市与区域生态国家重点实验室自主项目(SKLURE2013-1-02)
"十二五"国家科技支撑计划课题(2013BAJ04B01)资助
关键词
生态系统服务
城镇化
土地利用
空间分异
ecosystem service
urbanization
land use
spatial differentiation.
