摘要
以湟水流域为例,利用土地利用数据,测定该流域各类生态系统重心轨迹。从局域—全域景观变化嵌套关联的视角出发,引入合作博弈论中的Shapley值,构建重心移动贡献指数,分析湟水流域景观敏感度分异格局。结果表明:①湟水流域各类生态系统重心区间相对独立,沿"西北—东南"的河谷走向移动,人居和水域重心移幅较大。②景观敏感度空间分异明显,上游和支流地区敏感度更高。③矿产和水电开发、城镇用地扩张、生态保护与治理行动是影响湟水流域景观敏感度的三大重要因素。
Taking a case study of Huangshui River Basin,this paper used the land use data to calculate the centroid trajectory of all kinds of ecosystems. Proposing Baryceter Migration Contribution index(BMCI)constructed from the Shapley value in the cooperative game theory,this paper analyzed the spatial differentiation pattern of landscape sensitivity in Huangshui river basin which based on the perspective of landscape change in local and global were nested with each other. The results showed that:(1)The centroid of all kinds of ecosystems in the basin was rela tively independent and moved along the stretch direction of the river valley from northwest to southeast,and the centroid of the ecosystems of hu man settlements and waters has shifted greatly.(2) The spatial differentiation of landscape sensitivity was obvious,and the upper reached and tributaries were more sensitive.(3) Mineral and hydropower development,urban expansion,ecological protection and management actions were important factors which affected the landscape sensitivity of Huangshui River Basin.
作者
冯涛
石培基
张学斌
童华丽
赵武生
FENG Tao;SHI Pei-ji;ZHANG Xue-bin;TONG Hua-li;ZHAO Wu-sheng(College of Geography and Environment Science,Northwest Normal University,Lanzhou 730070,China;Land Use and Comprehensive Improvement Engineering Research Center of Gansu Province,Lanzhou 730070,China)
出处
《资源开发与市场》
CAS
2020年第8期829-836,共8页
Resource Development & Market
基金
国家自然科学基金面上项目“河湟地区多尺度地理格局与兰西城市群相互作用的空间效应”(编号:41771130)
国家自然科学基金地区项目“基于景观格局的绿洲型城镇空间演变的生态风险效应研究”(编号:41661035)。
