基于阜新市的土壤多样性与土地利用类型关联性分析

The Correlative Analysis of Pedodiversity and Land Use Diversity in Fuxin

以阜新市为研究对象,将土地利用动态演变的模拟和预测以及关联分析测度方法应用于土壤多样性和土地利用类型关联性分析的研究中。选取1985—2015年间8个时期的遥感影像进行土地利用分类,并基于土壤矢量数据,对阜新市土壤和土地利用的多样性进行初步分析和定量化研究,探究了土壤与土地利用之间的关联性。研究结果表明:对阜新市土壤多样性指数影响因子的关联度从大到小依次是城镇、农用地、林地、水域、其他,关联度值分别为0.850 6、0.747 7、0.779 5、0.803 3、0.641 9,选取城镇、农用地、林地和水域这4个因子作为多元线性回归模型中的自变量参数,对土壤多样性指数进行预测,得到相关系数R=0.990,因此,4个因子对土壤多样性指数影响具有较强的关联性。由此可见,大规模土地利用变化是引起土壤多样性变化的一个首要驱动因子。

Taking Fuxin as the research object,the simulation and prediction of land use dynamic evolution and the measure method of correlative analysis were applied to the research on the correlative analysis of pedodiversity and land use. Based on eight images of remote sensing between 1985 and 2015 whose land use were classified while the soil vector data was used,the preliminary analysis and the quantitative research of the diversity between soil and land use were conducted and discussed the relationship between them. The results showed that the influence factors of pedodiversity in Fuxin were in order to be urban,agricultural land,forest land,water and other,the values were 0. 850 6,0. 747 7,0. 779 5,0. 803 3,0. 641 9,respectively. The four factors of urban,agricultural land,forest land,water area are selected as variable parameters in multivariate linear regression model of Fuxin city soil diversity index to predict,the correlation coefficient R = 0. 990. Therefore,four factors on the impact of diversity index in soil have a strong correlation.Thus,the change of land use in large scale is one of the most important driving factors for the change of pedodiversity.