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黄河三角洲土地利用与生态系统服务演变特征及耦合关系分析

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为探究土地利用变化背景下黄河三角洲生态系统服务的响应,采用遥感与地理信息技术,量化土地利用动态度、土地利用强度以及生态系统服务价值,分析了1985-2019年该地区土地利用及生态系统服务价值的时空演变特征,并基于耦合协调模型计算其土地利用强度与生态系统服务价值的耦合关系.结果表明,(1)1985-2019年研究区建设用地和水体面积呈增加趋势,裸地、草地和耕地面积呈减少趋势,其中耕地整体动态度数值较小,年际变化小,水体的动态度数值较大,年际变化大;土地利用强度表现为由沿海向内陆逐渐增加的空间分布特征.(2)研究区东南部海岸黄河入海口区域草地面积减少,生态系统服务价值呈减弱趋势;西北部海岸受水体面积增加的影响,其生态系统服务价值呈上升趋势;内陆由于建设用地面积的增加,生态系统服务价值相对较低.(3)1985-2019年研究区生态系统服务价值与土地利用强度间的耦合协调性总体呈上升趋势,新增高协调发展区域位于研究区内陆与海岸的过渡区域,适度发展不平衡区主要分布于沿海.研究为研究区的高质量发展和资源环境监测提供了参考.
Evolution characteristics and coupling relationship between land use and ecosystem services in the Yellow River Delta
In order to explore the response of ecosystem services in the Yellow River Delta under the background of land use change,remote sensing and geographic information technology were used to quantify land use dynamic attitude,land use intensity and ecosystem service value,and the spatio-temporal evolution characteristics of land use and ecosystem service value were analyzed in the research area from 1985 to 2019.The coupling relationship between land use intensity and ecosystem service value was analyzed based on the coupling coordination model.The results showed that,(1)From 1985 to 2019,the area of construction land and water body in the research area showed an increasing trend,while the area of bare land,grassland and cultivated land showed a decreasing trend.The dynamic attitude value of cultivated land was small and the inter-annual change was small,while the dynamic attitude value of water body was large and the inter-annual change was large.The land use intensity in the research area was characterized by the increase of spatial characteristics from coastal to inland.(2)In the southeast coast the grassland area decreased and the ecosystem service showed an weakentrend;in the northwest coast,affected by the increase of water area,the ecosystem service value showed an upward trend.In the inland part of the delta,the ecosystem service value was relatively low due to the increase of construction land area.(3)The coupling coordination between ecosystem service value and land use intensity in the research area showed an increasing trend from 1985 to 2019,the newly added areas of high coordinated development were mainly located in the transition area from inland delta to the coast,and moderate unbalanced development were mainly distributed in the coastal areas.The research provided a reference for high-quality development and resource and environment monitoring in the Yellow River Delta.

Yellow River Deltaland useecosystem servicescoupling coordination

薛书奇、许颖

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山东交通学院交通土建工程学院,山东济南 250000

黄河三角洲 土地利用 生态系统服务 耦合协调

教育部人文社会科学研究青年基金项目山东省自然科学基金青年项目山东交通学院科研基金项目

20YJCZH198ZR2021QD093Z202111

2024

安徽农学通报
安徽省农学会

安徽农学通报

影响因子:0.275
ISSN:1007-7731
年,卷(期):2024.30(18)