首页|长江上游"三生空间"演变特征及生态环境效应

长江上游"三生空间"演变特征及生态环境效应

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快速的城镇化、工业化进程加剧了各利益主体对土地资源的竞争,生产、生活、生态空间之间的相互转化日趋激烈,进而造成区域生态环境质量的波动.以长江上游地区为研究对象,基于1980～2020年5期土地利用遥感监测数据,运用转移矩阵、生态环境质量模型等方法,定量分析长江上游"三生空间"转型以及由此带来的生态环境效应.结果表明:(1)研究期内,长江上游"三生空间"转型具体表现为生活空间和工业生产空间面积快速扩张,农业生产空间和生态空间面积减少,转变的主要类型是生产空间和生态空间之间的转化.(2)1980～2020年,生态环境质量略有提升,高值区主要分布在长江上游东部和西南部,中部和西部形成低值集聚区.(3)研究期内,生态环境质量同时存在改善和恶化两种趋势,工业生产空间、其他生态空间对林地、草地等生态空间的侵占是导致生态环境质量恶化的关键因素.未来长江上游生态环境和经济发展政策制定应充分考虑"三生空间"转型,推动"三生空间"用地结构合理化,构建起长江上游生态安全屏障.
Evolution Characteristics of the"Production-Living-Ecological"Space and Eco-Environmental Effects in the Upper Yangtze River
The rapid process of urbanization and industrialization has intensified the competition of land resources among various stakeholders.The mutual transformation between"production-living-ecological"space(PLES)has become increasingly fierce,which caused fluctuations in the quality of regional eco-environment.Taking the upper reaches of the Yangtze River(URYB)as the research object,we quantitatively analyzed the transformation of the PLES and the eco-environmental effects.Five periods of land use remote sensing monitoring data from 1980 to 2020 were used.The transfer matrix and eco-environmental quality modeling methods were applied.The results showed that:(1)During the study period,the transformation of the PLES in the URYB was characterized by the rapid expansion of living space and industrial production space,and the reduction of agricultural production space and ecological space.The main type of transformation was between production space and ecological space.(2)The eco-environment quality slightly improved.The high-value areas were mainly distributed in the eastern and southwestern parts of the URYB,while the central and western parts formed a low-value area.(3)There existed both improving and deteriorating trends in eco-environment quality.The encroachment of industrial production space and other ecological space on forest land,grassland and other ecological space was the key factor leading to the deterioration of ecological environment quality.In the future,the eco-environment and economic development policies in the URYB should take into full consideration of the transformation of the PLES,promote the rationalization of the land use structure of the PLES,and build up an ecological security barrier in the URYB.

production-living-ecological spaceland transformationecological and environmental effectsthe upper reaches of the Yangtze River

苏旭阳、曾艳梅、范娅梅、文传浩

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云南大学经济学院,云南昆明 650000

"三生空间" 土地转型 生态环境效应 长江上游

国家社会科学基金重大项目云南省教育厅科研项目研究生项目云南省哲学社会科学专家工作站项目重庆市研究生科研创新项目

20&ZD0952023Y02812021GZZH01yjscxx2023-211-10

2024

10.11870/cjlyzyyhj202408015

长江流域资源与环境
中国科学院资源环境科学与技术局 中国科学院武汉文献情报中心

长江流域资源与环境

CSTPCDCSSCICHSSCD北大核心
影响因子：1.35
ISSN：1004-8227
年,卷(期)：2024.33(8)