唐秀美, 潘瑜春, 郝星耀, 刘 玉. 中国耕地整治生态潜力测算方法[J]. 农业工程学报, 2015, 31(17): 270-277. DOI: 10.11975/j.issn.1002-6819.2015.17.036
    引用本文: 唐秀美, 潘瑜春, 郝星耀, 刘 玉. 中国耕地整治生态潜力测算方法[J]. 农业工程学报, 2015, 31(17): 270-277. DOI: 10.11975/j.issn.1002-6819.2015.17.036
    Tang Xiumei, Pan Yuchun, Hao Xingyao, Liu Yu. Calculation method of cultivated land consolidation ecological potential in China[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2015, 31(17): 270-277. DOI: 10.11975/j.issn.1002-6819.2015.17.036
    Citation: Tang Xiumei, Pan Yuchun, Hao Xingyao, Liu Yu. Calculation method of cultivated land consolidation ecological potential in China[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2015, 31(17): 270-277. DOI: 10.11975/j.issn.1002-6819.2015.17.036

    中国耕地整治生态潜力测算方法

    Calculation method of cultivated land consolidation ecological potential in China

    • 摘要: 为合理测算耕地整治生态潜力,指导区域土地整治生态建设,该研究在耕地整治数量、质量潜力测算的基础上,采用生态系统服务价值增加值表征耕地整治生态潜力,提出了全国耕地生态潜力的测算方法,并以县为单位,对全国的耕地整治生态潜力进行了测算。结果表明,中国的耕地整治生态潜力巨大,生态服务价值总量达到6.14×1011元;潜力较高的县集中分布在黑龙江省、吉林省,其次是东部地区的河南省、安徽省、湖北省,西南地区的四川省、宁夏回族自治区大部分县的生态潜力也较高;潜力较低的县主要分布在西北地区、闽粤琼地区和青藏区。该研究探索了耕地整治生态潜力的新思路和方法,研究结果对掌握全国耕地整治潜力分布特点、指导区域土地整治生态建设、确定全国的土地整治与生态保护重点区等有很好的指导作用。

       

      Abstract: Abstract:Cultivated land consolidation (CLC) is the key component of agricultural land consolidation and the potential of CLC has great significance for the planning of land consolidation and major projects. Based on the evaluation of quantitative and qualitative potential of CLC, in this study, we explored the ecological potential of CLC in China at county scale using the ecosystem services value (ESV) to characterize the ecological potential. First, the national basic average ESV of cultivated land was determined by the existing research. Then, the reference ESV of each county in China was calculated after the spatial correction and time scale correction. Combined with the original area of cultivated land, the total ESV of each county in China was calculated. Second, the qualitative potential of CLC was calculated by pre-evaluation of farmland classification, and then the ESV of cultivated land after CLC was obtained by combining the farmland classification, production capacity and ESV. The total ecological potential included the added ESV of original cultivated land after CLC and the ESV of added cultivated land. The added ESV of original cultivated land was equal to the product of the basic ESV after CLC and the area of original cultivated land. The ESV of added cultivated land was equal to the product of the basic ESV before CLC and the area of new cultivated land. Finally, the ecological potential of each county was calculated with the ESV before and after CLC. Based on the result on county-scale, we got the total ecological potential of CLC on provincial-scale and, national scale. The results proved that there were considerable and concentrated potential capacities of the CLC in China. The total ecological potential was 6.14×1011 Yuan. The counties with high ecological potential were mainly distributed in Heilongjiang and Jinlin in Northeast China, Henan, Anhui and Hubei in the east, Sichuan in the southwest, Xinjiang in the northwest; and the counties with low ecological potential were distributed in the southwest, Fujian-Canton-Hainan and Qinghai-Tibet area. The provinces with high ecological potential were mainly distributed in the middle east region, and the highest number was Sichuan province with the ecological potential of 8.02×1010 Yuan. This had a great relationship with the large area of cultivated land area and high basic average ESV of cultivated land in Sichuan province. In nine major land use areas in China, the region with highest ecological potential was the Hunan-Hubei-Anhui-Jiangxi region, reached to 1.59×1011 Yuan. The ecological potential of the Southwest region and the Beijing-Tianjin-Hebei-Shandong region were more than 9.00×1010 Yuan, and the Jiangsu-Zhejiang-Shanghai region, the Northeast region and the Shanxi-Henan region achieved to 5.00×1010 Yuan. The regions with low ecological potential were the Southwest region and the Fujian-Canton-Hainan region, especially the Qinghai-Tibet region, only 1.16×108 Yuan. In this study, we explored the new ideas and methods of ecological potential of cultivated land. The result provided guidance for the planning and ecological construction of CLC, the ecological protection in key areas. The ecological potential of CLC was represented by added characterization of ESV in this study. Owing to the limitation of data availability, the calculation of ecological potential in this study neglected the ESV reduction caused by the adjustment of other land use types. The future study should focus on the calculation of overall value of ecological potential on the CLC project regions with the consideration of ecological environment, social effect, and human development.

       

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