| 国土空间多功能耦合协调测度及多维功能冲突诊断 |
| 摘要点击 2158 全文点击 300 投稿时间：2023-11-07 修订日期：2024-01-29 |
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| 中文关键词 国土空间 多功能评价 耦合协调 功能冲突 格网 |
| 英文关键词 territorial space multi-function evaluation coupling coordination function conflict grid |
| DOI 10.13227/j.hjkx.20241027 |
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| 中文摘要 |
| 探索城镇、农业和生态功能之间的关系是优化国土空间格局和实现国土空间均衡发展的重要基础．基于2010~2020年土地利用数据、人口密度数据、夜间灯光数据、路网数据、降水量数据及县域统计数据等多源数据,从格网尺度构建鄱阳湖生态经济区国土空间多功能评价指标体系,而后借助耦合协调度模型和空间自相关分析等方法测度国土空间多功能耦合协调水平,并借助多维功能冲突识别模型诊断其功能冲突的类型及强度．结果表明：①城镇功能以提高为主,提高的格网占比75.67%,功能评价高值区主要分布在研究区南部,但北部地区城镇功能提高的强度高于南部地区；农业和生态功能主要表现为降低,二者降低的格网占比分别达77.44%和57.66%,明显降低的格网多分布在鄱阳湖以南地区；②耦合协调类型以失调衰退型为主,失调衰退型的格网占比在2010年和2020年分别达53.87%和49.89%,但严重失调及初级协调区均有所减少,总体耦合协调类型趋向于“两头向中间”转变；耦合协调热点区主要集中在南部平原,冷点区主要分布在北部山地丘陵区,二者均表现为缩小的趋势； ③4类国土空间功能冲突的强度以中度或重度为主,且多表现为加剧,冲突加剧的地区主要分布在赣江及抚河流域,加剧的原因主要为城镇功能明显提高而生态和农业功能显著下降．研究表明区域国土空间多功能耦合协调类型及多维功能冲突存在空间差异,需要因地制宜地提出优化策略；同时,在城镇化发展的各个时期均需注重保护生态环境和保障农业生产． |
| 英文摘要 |
| Exploring the relationship between urban, agricultural, and ecological functions is crucial for optimizing the territorial spatial patterns and achieving balanced territorial spatial development. Based on the classification system of “urban-agricultural-ecological” territorial spatial planning and with the help of multi-source data, including land use, population density, nighttime light, road network, precipitation, and county statistical data from 2010 to 2020, we constructed an evaluation index system of territorial space functions at the grid scale in the Poyang Lake Ecological Economic Zone. The coupling coordination levels among territorial space functions was measured using the coupling coordination degree model and spatial autocorrelation analysis. Moreover, the multi-dimensional function conflict identification model was used to diagnose the type and intensity of function conflicts. The results showed that： ① The urban function was mainly improved, accounting for 75.67%. The grids with high function evaluation index were mainly located in the south of the study area, whereas the intensity of urban function improvement in the north was higher than that in the south. Otherwise, the agricultural and ecological functions were mainly reduced, accounting for 77.44 % and 57.66%, respectively, and the majority of grids with a significant decrease were distributed in the south of Poyang Lake. ② From 2010 to 2020, the coupling coordination type was dominated by an imbalance recession, accounting for 53.87% and 49.89 %, respectively. However, the number of grids with crucial imbalance and primary coordination was reduced, and the coupling coordination types tended to change from both ends to the middle. The coupling coordination hot spots were mainly concentrated in the southern plain, whereas the cold spots were mainly distributed in the northern mountainous and hilly areas, both of which showed a reducing trend. However, in the north of Poyang Lake, a small number of hot spots, distributed along the lake area with relatively flat terrain, showed an expanding trend. ③ The intensity of four territorial space function conflicts was mainly moderate or severe. In addition to the slight positive trend of ‘urban-agricultural' function conflict, the function conflicts of “urban-ecological”, “agricultural-ecological”, and “urban-agricultural-ecological” were all aggravated. The grids with aggravating conflicts were mainly distributed in the Ganjiang River and Fuhe River Basin. The major reason for the aggravation was that the urban function increased obviously, whereas the ecological and agricultural functions decreased significantly. In conclusion, in both the coupling coordination types and multi-dimensional conflicts among territorial space functions, significant spatial differences existed； thus, proposing optimization strategies according to local conditions is necessary. Additionally, the protection of ecological and agricultural spaces during each stage of urbanization development must be focused. |
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