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Dynamic trends and driving forces of land use intensification of cultivated land in China

机译:中国耕地利用集约化的动态趋势与驱动力

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摘要

The aim of this study is to establish several important factors representing land use intensification in cultivated land (denoted by CII), using a multi-dimensional approach to achieve realistic and practical cultivated land use policies in China. For this reason, the theoretical framework was first built to explain the changes of land use intensification in the cultivated land, and then the variables and index were further developed for the purpose of characterizing the dynamic trends and driving forces of the land use intensification in the cultivated land at the provincial level. The study results indicate that the extent of CII significantly increased during the period of 1996 to 2008, due to the extensive use of fertilizers, machinery and pesticide, increased labor and capital input, and intensified land use. Moreover, the principal component regression results show that the productivity of cultivated land, economic benefits of cultivated land, labor productivity, and land use conversion are the main factors affecting the village development. The first three factors play a positive role, while the last one has a negative effect on the land use intensification in the cultivated land. According to these results, the main policies for sustainable intensification in cultivated land are proposed. First, the sustainable pathways for intensification should be adopted to reduce the unsustainable uses of chemical fertilizer, agricultural chemicals, etc. Second, the conditions for agricultural production should be further improved to increase the cultivated land productivity. Third, it is very necessary and helpful for improving labor productivity and land use efficiency from the viewpoint of accelerated the cultivated land circulation. The last step is to positively affect the production activities of peasants by means of reforming the subsidy standards.
机译:这项研究的目的是建立一个代表耕地土地集约化的重要因素(用CII表示),采用多维方法来实现中国现实可行的耕地利用政策。因此,首先建立理论框架来解释耕地集约利用的变化,然后进一步发展变量和指标,以表征耕地集约利用的动态趋势和驱动力。省级耕地。研究结果表明,由于广泛使用化肥,机械和杀虫剂,增加的劳动力和资本投入以及土地利用的加剧,CII的范围在1996年至2008年期间显着增加。此外,主成分回归结果表明,耕地生产率,耕地经济效益,劳动生产率和土地利用转化是影响乡村发展的主要因素。前三个因素起积极作用,而最后一个因素对耕地的土地集约化有负面影响。根据这些结果,提出了耕地可持续集约化的主要政策。首先,应采取可持续的集约化途径,以减少化肥,农用化学品等的不可持续使用。其次,应进一步改善农业生产条件,以提高耕地生产率。第三,从加快耕地流转的角度看,对提高劳动生产率和土地利用效率十分必要和有益。最后一步是通过改革补贴标准,积极影响农民的生产活动。

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