青海省耕地生态承载力评价

蒋如琦 1; 王　卫 1; 2; 任向宁 1; 胡月明 1

文章摘要

蒋如琦 1，王　卫 1，2，任向宁 1，胡月明 1.青海省耕地生态承载力评价[J].广东农业科学,2020,47(8):137-144

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Evaluation of Ecological Carrying Capacity of Cultivated Land in Qinghai Province

DOI：10.16768/j.issn.1004-874X.2020.08.018

中文关键词: 耕地生态足迹生态承载力供需平衡青海省

英文关键词: cultivated land ecological footprint ecological carrying capacity balance of supply and demand Qinghai Province

基金项目:国家重点研发计划（2018YFD1100103）

作者	单位
蒋如琦 1，王　卫 1，2，任向宁 1，胡月明 1	1. 华南农业大学资源环境学院 / 广东省土地利用与整治重点实验室 /广东省土地信息工程技术研究中心，广东广州 510640；2. 韶关学院英东生物与农业学院 / 韶关学院粤北土壤土地研究中心，广东韶关 512005

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中文摘要:

【目的】对青海省的耕地生态承载力进行研究，为其农业产业结构调整、生态安全预警、区域经济发展及土地利用总体规划编制提供决策依据。【方法】以青海省 2017 年耕地生态承载力为研究出发点，运用GIS 空间分析和生态足迹模型分析生态承载力的供需平衡指数，对青海省耕地生态足迹供需平衡现状进行分析与评价，并定性分析其驱动因素。【结果】（1）青海省耕地生态足迹东部地区较大，西部地区相对较小，测算结果与各市（州）人口总数有较好的一致性；（2）耕地生态承载力的相关比值在区域分布上不匹配，主要因为各市（州）的耕地总面积存在差异性；（3）从整体上看，青海省各市（州）耕地生态承载状况都属于耕地生态盈余区与耕地生态平衡区，并未出现耕地生态赤字区；（4）青海省耕地生态承载力供需空间分布依然存在不平衡性，西部地区的耕地生态承载力供需平衡状况较东部地区好，东北部的海北州、海南州和海东市已经处于临界超载的状态，且临界超载区与经济发展速度较快区域具有较好的吻合性。【结论】对于青海省土地的总体规划要格外慎重，要做好生态和经济两方面工作；同时在耕地资源方面坚守原则，为生态的可持续发展提供保障。

英文摘要:

【Objective】The ecological carrying capacity of cultivated land in Qinghai Province was studied to provide decision-making basis for agricultural industrial structure adjustment, ecological security warning, regional economic development and overall land use planning.【Method】Taking the ecological carrying capacity of cultivated land in Qinghai Province in 2017 as the starting point of this study, the supply and demand balance index of ecological carrying capacity was analyzed through GIS spatial analysis and the ecological footprint model, then the current situation of supply and demand balance of cultivated land ecological footprint in Qinghai Province was evaluated, and its driving factors were analyzed. 【Result】（1）The ecological footprint of cultivated land in the eastern region of Qinghai Province is larger than that in the western region, and the calculated results are in good consistency with the total population of each city（state）;（2）The correlation ratio of ecological carrying capacity of cultivated land can not match perfectly in regional distribution, mainly due to the difference of total cultivated land area among various cities（states）;（3）In general, the ecological carrying capacity of cultivated land in each city of Qinghai Province belongs to the ecological surplus area and ecological balance area, and there is no ecological deficit area;（4）The spatial distribution of ecological carrying capacity of cultivated land in Qinghai Province is still unbalanced, the balance between supply and demand of ecological carrying capacity of cultivated land in the western region is better than that in the eastern region. Haibei, Hainan and Haidong in the northeast have been in the state of critical overload,and the critical overload area is in good consistency with the region with rapid economic development.【Conclusion】Special attention should be paid to the overall land planning in Qinghai Province, and the balance of ecological protection and economic development should be done well for the consideration of long-term development. In terms of cultivated land resources, we should stick to the principle to provide protection for the ecological sustainable development at the same time.

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