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杭嘉湖平原耕地多功能时空动态演变分析 被引量:6
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作者 马仁锋 姜露露 《上海国土资源》 2019年第4期21-26,共6页
以分析耕地多功能权衡与协同关系为契机,实现耕地利用效率评价,以及耕地利用综合效益的提高和耕地资源与环境的保护。通过ArcGIS10.5、Fragstas4.2、斯皮尔曼秩相关和空间自相关等分析法综合研究发现:(1)物质产出、生态环境、景观美学... 以分析耕地多功能权衡与协同关系为契机,实现耕地利用效率评价,以及耕地利用综合效益的提高和耕地资源与环境的保护。通过ArcGIS10.5、Fragstas4.2、斯皮尔曼秩相关和空间自相关等分析法综合研究发现:(1)物质产出、生态环境、景观美学以及劳动承载力功能的趋势持续增强,其中物质产出与景观美学相较于生态环境与劳动力承载增强较快,劳动力承载功能变化最平稳。(2)耕地各功能间主要呈协同作用,且随时间推移协同程度不断减弱,权衡作用相反。(3)耕地多功能权衡与协同呈现较强的集聚性特征,部分耕地功能空间格局随时间变化较大。同一功能中,物质产出的空间格局较其余三种稳定;不同功能中,物质产出与景观美学间协同较强,生态环境与劳动力承载间权衡较强。故在改善耕地本底质量、合理引导劳动力流向和发展现代观光农业的同时,应加强县域内各部门以及县际之间的合作,科学划定功能区;促进耕地多功能协同,增强耕地综合效益。 展开更多
关键词 耕地利用 效率评价 多功能权衡与协同 空间自相关 粮食主产区 杭嘉湖平原
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Exploring the Scale Effects of Trade-offs and Synergies of Multifunctional Cultivated Land——Evidence from Wuhan Metropolitan Area 被引量:2
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作者 YANG Fengyanzi HU Weiyan 《Journal of Resources and Ecology》 CSCD 2022年第6期1116-1127,共12页
The purpose of this paper is to explore the trade-offs and synergies of multifunctional cultivated land(MCL) at multiple scales. The study area is Wuhan Metropolitan Area, China. The entropy method and the method of S... The purpose of this paper is to explore the trade-offs and synergies of multifunctional cultivated land(MCL) at multiple scales. The study area is Wuhan Metropolitan Area, China. The entropy method and the method of Spearman’s rank correlation were employed for the analysis of combined land use/cover data, administrative division data, population data and statistical yearbook data, from the multi-scale perspectives of cities, counties and townships. The results showed that:(1) The multi-functionality of cultivated land had obvious spatial differences and its overall spatial patterns were relatively robust, which did not change very much at the single scale.(2) At each single scale, the MCL’s trade-offs and synergies had spatial heterogeneity.(3) Scale effects existed in the MCL’s trade-offs and synergies. From the prefecture-level city scale, to the county scale, and to the township scale, the MCL’s trade-offs were changed to synergies, and some synergic relationships were enhanced. This article contributes to the literature by deepening the multiscale analysis of trade-offs and synergies of multifunctional cultivated land. The conclusions might provide a basis for helping policy-makers to implement protection measures for the multi-functionality of cultivated land at the right spatial scale, and to promote the higher-level synergies of multifunctional cultivated land to realize its sustainable use. 展开更多
关键词 sustainable cultivated land use multifunctional cultivated land trade-offs and synergies scale effects Wuhan Metropolitan Area
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