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| 基于主导因素约束的典型西南山地乡村土地资源承载力研究 |
| Carrying capacity of land resources in a typical southwest mountainous countryside based on the constraints of dominant factors |
| Received:September 27, 2023 |
| DOI：10.13254/j.jare.2023.0615 |
| 中文关键词: 聚落，粮食，产业，山地乡村，三元耦合约束，四川省，汉源县 |
| 英文关键词: settlement, grain, industry, mountainous and rural area, triple constraint, Sichuan Province, Hanyuan County |
| 基金项目:国家社会科学基金项目（19XGL027）；重庆市自然科学基金项目（CSTB2023NSCQ-MSX0643） |
| Author Name | Affiliation | E-mail | | KONG Xiangyuan | School of Geography and Tourism, Chongqing Normal University, Chongqing 401331, China
GIS Application Research Key Laboratory of Chongqing Education Commission of China, Chongqing 401331, China | | | WANG Yang | School of Geography and Tourism, Chongqing Normal University, Chongqing 401331, China
GIS Application Research Key Laboratory of Chongqing Education Commission of China, Chongqing 401331, China
Chongqing Key Laboratory of Carbon Cycle and Carbon Regulation in Mountainous Ecosystems, Chongqing 401331, China
Chongqing Key Laboratory of Surface Process and Environmental Remote Sensing in the Three Gorges Reservoir Area, Chongqing 401331, China | cqwangyang@foxmail.com | | LI Fan | School of Geography and Tourism, Chongqing Normal University, Chongqing 401331, China
GIS Application Research Key Laboratory of Chongqing Education Commission of China, Chongqing 401331, China | | | ZHANG Peihua | School of Geography and Tourism, Chongqing Normal University, Chongqing 401331, China
GIS Application Research Key Laboratory of Chongqing Education Commission of China, Chongqing 401331, China | | | CHEN Moduo | School of Geography and Tourism, Chongqing Normal University, Chongqing 401331, China
GIS Application Research Key Laboratory of Chongqing Education Commission of China, Chongqing 401331, China | | | MEI Yan | School of Geography and Tourism, Chongqing Normal University, Chongqing 401331, China
GIS Application Research Key Laboratory of Chongqing Education Commission of China, Chongqing 401331, China | | | ZHANG Hongrui | School of Geography and Tourism, Chongqing Normal University, Chongqing 401331, China | |
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| 中文摘要: |
| 为厘清山地乡村的土地资源承载力空间格局和约束因素，本研究以四川省汉源县为例，基于DEM、LUCC等多源空间数据以及行政村统计数据，通过聚落承载力、粮食承载力和产业承载力分析，构建“聚地产”三元约束视角下土地承载力测评算法，定量分析了案例区域的土地资源综合承载力。结果表明：聚落承载力总体处于盈余状态，盈余村庄139个，占68%，过载村庄64个，占32%。聚落承载力盈余区集中于中部河谷，超载区集中分布在北部中高山区。粮食承载力总体处于临界过载状态，过载村庄116个，占57%，盈余村庄87个，占43%。粮食承载力盈余区分布零散，过载区集中分布在中部河谷区。产业承载力总体处于过载状态，盈余村庄63个，仅占31%，过载村庄140个，占69%。产业承载力盈余区集中在北部，过载区域集中于中部及南部。乡村综合土地承载力呈现过载状态，综合承载指数表明，过载村庄共计180个，占89%，严重超载村庄93个，占46%。承载力受限的基础性自然约束因素集中于地貌条件，各子因素的约束力排序为平均高程（r=-0.58）>起伏度（r=-0.42）>坡度25°以上面积占比（r=-0.40）>局部高差（r=-0.37）。汉源县乡村“聚地产”耦合协调水平高，高耦合阶段的村庄约占全县土地面积的71%、村庄数量的68%。处于协调水平的村庄占总数的81%，其中高水平协调的村庄占总数的29%。研究表明，西南山地乡村土地资源承载力受聚落、粮食、产业要素综合影响，针对承载力结果和不同耦合协调影响模式制定相应发展规划，有利于乡村高质量发展。 |
| 英文摘要: |
| To clarify the spatial pattern and constraints of land resource carrying capacity in mountainous rural areas, we take Hanyuan County, Sichuan Province as an example, based on multi-source spatial data such as DEM and LUCC, as well as administrative village statistical data. Through the analysis of settlement carrying capacity, grain carrying capacity, and industrial carrying capacity, a land carrying capacity evaluation algorithm under the“real estate”ternary constraint perspective is constructed. The comprehensive carrying capacity of land resources in the case area is quantitatively analyzed. We found that the overall carrying capacity of settlements is in a surplus state, with 139 surplus villages, accounting for 68%, while 64 overloaded villages accounting for 32%. The surplus area is concentrated in the central valley, while the overload area is concentrated in the middle and high mountain areas in the north. The overall grain carrying capacity is in a critical overload state, with 116 surplus villages accounting for 57% and 87 overloaded villages accounting for 43%. The surplus area is scattered, while the overload area is concentrated in the central valley area. The overall industrial carrying capacity is in an overloaded state, with 63 surplus villages accounting for only 31%, and 140 overloaded villages accounting for 69%. The surplus area is concentrated in the north and east, while the overload area is concentrated in the middle and south. The comprehensive land carrying capacity of rural areas is in an overloaded state. The comprehensive carrying index shows that there are a total of 180 overloaded villages, accounting for 89%, and 93 severely overloaded villages, accounting for 46%. The basic natural constraints with limited bearing capacity are concentrated in the geomorphic conditions, and the order of constraints for each subfactor is：average elevation（r=-0.58）> undulation（r=-0.42）> proportion of area with a slope of 25° or above（r=-0.40）> local height difference（r=-0.37）. The coupling and coordination level of rural real estate in Hanyuan County is high, with villages in the high coupling stage accounting for about 71% of the county's land area and 68% of the number of villages. Approximately 77% of the total villages are at a coordinated level, with high-level coordinated villages accounting for 59% of the total. The carrying capacity of land resources in mountainous rural areas is comprehensively influenced by settlement, food, and industrial factors. Developing corresponding development plans based on the results of carrying capacity and different coupling and coordinating impact modes is conducive to high-quality development of rural areas. |
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