论文部分内容阅读
分别选取河南省、江苏省省会城市郑州市和南京市,以及典型县域原阳县和如皋市,将土壤多样性理论与方法应用于土壤和土地利用关联性评价中,对上述不同级别行政区域的不同时期(1986~1988年、2000~2001年、2004~2006年)遥感数据进行土地利用分类,计算了土壤和土地利用类型的构成组分多样性以及3 km×3 km网格尺度下的空间分布多样性,提出并计算了各研究区典型土壤和土地利用之间的关联系数,以此评价了河南省和江苏省典型区域的土壤和土地利用构成及分布特征。研究结果表明,20世纪80年代至本世纪初,中东部之间和省会与县域之间的土地利用构成组分多样性变化和空间分布多样性变化具有明显区别;城镇建筑用地的空间分布离散性增加,南京市的增加量为0.135,略高于郑州市增量,而原阳县增加量为0.244,明显高于如皋市增量;典型土壤同城镇建筑用地、交通运输用地和工矿仓储用地之间的关联性均不断增加,南京市的上述关联系数增加值高于郑州市,两县域无明显区别。
Henan Province, Zhengzhou and Nanjing, capital cities of Jiangsu Province, and Yuanyang County and Rugao, a typical county, were selected to apply the theory and method of soil diversity in the evaluation of the relevance between soil and land use. The land use classification of remote sensing data in different periods (1986 ~ 1988, 2000 ~ 2001, 2004 ~ 2006) was used to calculate the compositional diversity of soil and land use types and the space under 3 km × 3 km grid scale Distribution and diversity, proposed and calculated the correlation coefficient between the typical soil and land use in each study area, and evaluated the composition and distribution of soil and land use in typical areas of Henan and Jiangsu Provinces. The results show that in the 1980s and the beginning of this century, there were obvious differences in the diversity of land use components and the diversity of spatial distribution between the eastern and eastern parts of the country and between the provincial capital and the county. The spatial distribution of urban construction land was discrete Increase, Nanjing increased 0.135, slightly higher than the increase in Zhengzhou City, Yuyuan County, while the increase was 0.244, significantly higher than the incremental Rugao; typical soil with urban construction land, land for transport and industrial and mining warehousing land The correlation between the two cities increased continuously. The added value of the above correlation coefficient in Nanjing was higher than that of Zhengzhou City. There was no obvious difference between the two counties.