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黄河上游流域生态系统服务变化及其权衡协同关系
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作者 庞彩艳 文琦 +2 位作者 丁金梅 吴昕燕 施琳娜 《生态学报》 CAS CSCD 北大核心 2024年第12期5003-5013,共11页
黄河上游是我国重要的生态屏障和生态功能区,研究其生态系统服务的时空演化及其权衡协同关系对实现黄河流域生态保护和高质量发展具有重要意义。基于土地利用、土壤、气象等数据,借助InVEST模型、相关性分析以及空间自相关分析等方法,... 黄河上游是我国重要的生态屏障和生态功能区,研究其生态系统服务的时空演化及其权衡协同关系对实现黄河流域生态保护和高质量发展具有重要意义。基于土地利用、土壤、气象等数据,借助InVEST模型、相关性分析以及空间自相关分析等方法,定量分析了2000—2020年黄河上游生态系统服务的时空演化特征及其权衡与协同关系。结果表明:(1)黄河上游各项生态系统服务整体表现为“西南高,东北低”的分布格局,高值区主要分布于流域西南部,低值区主要分布于流域东北部;(2)研究期内,黄河上游各项生态系统服务均呈现波动变化的趋势,产水量和土壤保持呈现整体减少趋势,生境质量与碳储量呈现增加的趋势;(3)各项生态系统服务两两之间均存在不同程度的相关关系,产水量与生境质量、碳储量呈现此消彼长的权衡关系,产水量-土壤保持、生境质量-碳储量与土壤保持-碳储量之间呈现协同关系;(4)在空间分布格局上,各项生态系统服务间的权衡与协同关系表现出显著的空间异质性与尺度效应,不同分区之间差异较大。本文可为科学管理区域生态系统,促进流域可持续发展提供参考。 展开更多
关键词 黄河上游 生态系统服务 权衡与协同 InVEST模型 相关性分析
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Impacts of Ecological Restoration and Human Activities on Habitat of Overwintering Migratory Birds in the Wetland of Poyang Lake, Jiangxi Province, China 被引量:6
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作者 SUN Chuan-zhun ZHEN Lin +3 位作者 WANG Chao YAN Bang-you CAO Xiao-chang WU Rui-zi 《Journal of Mountain Science》 SCIE CSCD 2015年第5期1302-1314,共13页
Increasing human activities have contributed to global climate change, and thus resulted in a downward trend in the number of species and population sizes of migratory birds. This trend is closely related to a reducti... Increasing human activities have contributed to global climate change, and thus resulted in a downward trend in the number of species and population sizes of migratory birds. This trend is closely related to a reduction in habitat size and lower habitat quality. The Poyang Lake wetland in China constitutes one of Asia's largest overwintering habitats for migratory birds. Over the past 10 years, restoration projects have improved the habitat ecology of these wetlands. In this study, we assessed the changes in habitat quality for overwintering migratory birds from 2000 to 2012 near two villages in the Poyang Lake wetland using the In VEST model. Average habitat quality for migratory birds has been improved by 18.8% and47.7%. Differences in the degrees of habitat improvement can be attributed to differences in the change of habitat size and in the impact of threat sources that resulted from the combined effects of restoration and human activities in these two villages. 展开更多
关键词 WETLAND Ecological restoration investmodel Migratory bird HABITAT
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