河南省域土地利用构成组分多样性的特征  

The diversity of land use components in Henan Province

作　　者：王娇[1,2] 张学雷 WANG Jiao;ZHANG Xuelei(School of Hydraulic and Environmental Engineering,Zhengzhou University,Zhengzhou 450001,China;Institute of Natural Resources and Eco-environment,Zhengzhou 450001,China)

机构地区：[1]郑州大学水利与环境学院,河南郑州450001 [2]自然资源与生态环境研究所,河南郑州450001

出　　处：《河南农业大学学报》2018年第1期104-112,121,共10页Journal of Henan Agricultural University

基　　金：国家自然科学基金资助项目(41571208)

摘　　要：选取河南省域为研究区,利用RS(Remote Sensing)技术对18个省辖市土地利用的遥感影像数据进行处理,得到监督分类结果,运用GIS(Geographic Information System)技术对监督分类结果进行分析,并用经典的土壤构成组分多样性算法计算丰富度指数S、多样性指数H'和均匀度指数E。结果表明,各省辖市6种土地利用类型均匀度指数的范围为[0.265,0.647],济源市各土地利用类型分布最为均匀,周口市分布较为集中,均匀度最低。再将6种土地利用类型分别与均匀度指数E拟合函数进行分析,得出平均决定系数R^2的范围是[0.180,0.894],耕地与均匀度指数的拟合程度最高,而城镇建筑用地与均匀度指数的拟合效果最低;用6种土地利用类型分别与均匀度指数做相关分析,得出耕地和林地与均匀度指数的相关系数较高,城镇建筑用地与均匀度指数的相关系数最低,这与拟合函数分析的结果基本一致,说明耕地分布比较均匀而城镇建筑用地分布相对集中。Henan Province was selected as the study area by RS technology to obtain the supervised classification results from the remote sensing image data to get the land use types in the study area before using GIS technology to analyze the results of supervision classification,then the exploration of the richness index S,classical soil diversity index H′and the evenness index E was conducted to calculate the classical diversity composition of soil constituent.The results show that the range of evenness index of land use types was[0.265,0.647],and the distribution of land use patterns in Jiyuan city ranked the first in uniformity while the distribution of Zhoukou is highly concentrated resulting in its lowest evenness.The correlation coefficient between the six kinds of land use types and evenness index E was analyzed respectively.The average coefficient of determination ranges from 0.180 to 0.894 in which the figure between cultivated land and evenness index was the highest,indicating that the distribution was uniform while the fitting effect of urban construction land and evenness index was the lowest;the results of correlation analysis of the relationship between the 6 land use types and evenness index showed that:the correlation coefficient between cultivated land and forest land and evenness index was higher,and the correlation coefficient between urban construction land and evenness index was the lowest,which was basically consistent with the result of analysis of the fitted function and indicating that the distribution of cultivated land is evener while that of urban construction land is relatively concentrated.

关 键 词：土地利用 仙农熵 构成组分多样性 关联分析 

分 类 号：K928[历史地理—人文地理学]