基于能值理论,使用2000-2012年河南省耕地实物投入数据,对河南省耕地集约利用的整体特征和时空差异进行分析.结果表明:(1)13年间河南省耕地利用集约度和各种投入要素能值整体都呈现上升的趋势,但各种投入要素对耕地利用集约度的贡献发生较大变化,农业机械和地膜的重要性显著提升,化肥的重要性基本保持不变,而劳动力和农药的重要性则大大下降;(2)不同等级耕地集约利用的县域数量分布大致呈倒"V"型,即中度集约利用的县域数量最多,而精细利用和粗放利用的县域数量最少;(3)河南省耕地集约利用等级状况存在显著空间差异,耕地集约利用水平相对较高的县域分布在河南省中部和西北部,集约度较低的县域集中于河南的整个南部;(4)河南省各县域耕地集约利用水平与社会经济发展水平之间的不协调程度有所增加,其中耕地集约利用水平超前社会经济发展水平的县域集中于河南东部和中南部,耕地集约利用水平滞后社会经济发展水平的县域集中于河南中部和西北部.最后,基于上述结论,针对河南省耕地集约利用提出几点建议.
Based on the theory of energy value,using real input data of cultivated land in Henan province from 2000 to 2012,this paper anylyzes the overall characteristics and the temporal and spatial differences in the land intensive utilization of Henan province counties.The results show that:(1)In 13 years,the intensive degree of cultivated land use and various input factors show the upward trend in Henan province,but the contributions of various input factors to the intensive degree of cultivated land use have been changed.The importance of agricultural machinery and plastic film was greatly improved,and the importance of fertilizer remained basically unchanged,but the importance of labor and pesticide is greatly reduced.(2)The number distribution of different grades of cultivated land intensive use shows the invertedV"type,namely the number of moderate intensive use of county is the most,and the number of the fine and extensive use is the least.(3)There are significantly spatial differences in different grades of cultivated land use intensity in Henan province.The relatively high level of counties lies in the central and northwest of Henan province,but the lower degree of counties lies in the entire South region.(4)The incoordination degree between the level of cultivated land use intensity and the level of social and economic development has increased.The counties that the level of cultivated land use intensity exceeds the level of social and economic development concentrate in the eastern and southern Henan,and the counties that the level of economic and social development exceeds the level of cultivated land use intensity lie in the central and northwest Henan.Finally,based on the above conclusions,some suggestions are proposed about the intensive utilization of cultivated land in Henanprovince.