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| 黄河流域景观破碎化对土壤保持服务影响研究 | |
| 引用本文： | 陈万旭,梁加乐,卞娇娇,曾杰,潘思佩.黄河流域景观破碎化对土壤保持服务影响研究[J].地理科学,2022,42(4):589-601. |
| 作者姓名： | 陈万旭 梁加乐 卞娇娇 曾杰 潘思佩 |
| 作者单位： | 1.中国地质大学（武汉）地理与信息工程学院，湖北 武汉 430074 2.中国地质大学（武汉）空间规划与人地系统模拟研究中心，湖北 武汉 430074 3.北京师范大学地表过程与资源生态国家重点实验室，北京 100875 4.中国地质大学（武汉）公共管理学院，湖北 武汉 430074 |
| 基金项目： | 国家自然科学基金（42001187、42001231、41701629）；;地表过程与资源生态国家重点实验室开放基金（2021-KF-03）资助~~； |
| 摘 要： | 基于2000年、2005年、2010年和2015年土地利用现状遥感监测数据，分别采用景观格局指数和当量因子法测度了黄河流域多尺度景观破碎化和土壤保持服务的时空特征，并且综合运用热点分析工具、普通最小二乘法和空间回归分析模型，探索了2000—2015年黄河流域多尺度土壤保持服务时空演变特征及景观破碎化对土壤保持服务的影响机制。结果如下：① 黄河流域土壤保持服务低值区主要集中分布在黄河流域上游青海-甘肃-宁夏-陕西-内蒙古沿线地区以及流域下游河南和山东，另外省会城市以及周边地区同样是土壤保持服务低值区，土壤保持服务具有显著的尺度依赖性；② 研究期间黄河流域土壤保持服务变化的热点区域主要分布在流域上游黄土高原地区，冷点区域主要分布在黄土高原的周边地区，不同尺度下土壤保持服务变化冷热点差异显著；③ 回归结果显示，经济社会因子与土壤保持服务具有显著的负相关；自然本底因子中海拔和林地面积比重与土壤保持服务具有显著的正相关；景观破碎化指数对土壤保持服务的影响差异性显著。未来黄河流域不同分区土壤保持和土地利用政策的制定不仅需要考虑自然本底和经济社会驱动因子，还应考虑多尺度景观格局破碎化以及空间溢出效应，跨区域协同治理对于黄河流域土地利用政策制定和生态系统保护具有重要现实意义。 |
| 关 键 词： | 景观破碎化 土壤保持服务 黄河流域 跨区域协同治理 |
| 收稿时间： | 2021-01-19 |
| 修稿时间： | 2021-07-11 |
Impact of Landscape Fragmentation on Soil Conservation Services in the Yellow River Basin |
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| Chen Wanxu,Liang Jiale,Bian Jiaojiao,Zeng Jie,Pan Sipei.Impact of Landscape Fragmentation on Soil Conservation Services in the Yellow River Basin[J].Scientia Geographica Sinica,2022,42(4):589-601. | |
| Authors: | Chen Wanxu Liang Jiale Bian Jiaojiao Zeng Jie Pan Sipei |
| Abstract: | Natural ecosystem is increasingly disturbed by the human system. It is of great significance to clarify the influence mechanism of landscape fragmentation on soil conservation services for soil conservation and land use policies formulation in the Yellow River Basin. However, previous studies lacked the studies about the impacts of landscape fragmentation on soil conservation services that considering the spatial dependence at multi-scale comprehensively, which, to a certain extent, limited the effective formulation and implementation of soil conservation and land use policy-making in the Yellow River Basin. This study attempted to measure the spatiotemporal pattern of soil conservation services and landscape fragmentation based on the current situation of land use remote sensing monitoring data in 2000, 2005, 2010, and 2015 using the landscape pattern metrics and equivalent factor method in the Yellow River Basin, respectively. The hot spots analysis tool, ordinary least squares, and the spatial regression models were used to explore the spatio-temporal evolution characteristics of soil conservation services in the Yellow River Basin from 2000 to 2015 at multi-scales and the influence mechanism of landscape fragmentation on soil conservation services. Results are as follows. 1) The low-valued soil conservation services areas in the Yellow River Basin were mainly distributed along Qinghai-Gansu-Ningxia-Shaanxi-Inner Mongolia and the lower reaches of the Yellow River basin in Henan and Shandong. In addition, provincial capitals and surrounding areas were also low-valued soil conservation services areas. Soil conservation services had significant scale dependence. 2) The hot spots of soil conservation services change in the Yellow River Basin were mainly distributed in the Loess Plateau region, and the cold spots were mainly distributed in the surrounding areas of the Loess Plateau during the study period. The spatial patterns of cold and hot spots of soil conservation services change at multi-scale exhibited obvious spatial differences. 3) Regression results showed that the socioeconomic factors had a significant negative association with soil conservation services. In natural background factors, altitude and the proportion of forestland area were significantly positively associated with soil conservation services. Landscape fragmentation metrics had significant influence on soil conservation services, but varied greatly. In the future, soil conservation and land use policy-making in different regions of the Yellow River Basin should not only consider the natural background and socioeconomic drivers, but consider the fragmentation of multi-scale landscape pattern and spatial spillover effect. Cross-regional joint governance is of great practical significance for the formulation of land use policies and ecosystem conservation. |
| Keywords: | landscape fragmentation soil conservation services the Yellow River Basin cross-regional joint governance |
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