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| Evaluation of Ecological Carrying Capacity of Cultivated Land in Qinghai Province |
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| DOI：10.16768/j.issn.1004-874X.2020.08.018 |
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| Abstract: |
| 【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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