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基于仙农熵的土壤多样性和土地利用多样性关联评价
引用本文:段金龙,张学雷.基于仙农熵的土壤多样性和土地利用多样性关联评价[J].土壤学报,2011,48(5):893-903.
作者姓名:段金龙  张学雷
作者单位:郑州大学自然资源与生态环境研究所,郑州450001;郑州大学水利与环境学院,郑州450001
基金项目:国家自然科学基金项目(40671012)、河南省重大公益项目(081100911600-1)资助
摘    要:以南京市为例,将多样性理论与方法应用于土壤和土地利用相关性评价中,对该市1986年和2003年的遥感数据进行了土地利用分类,计算了各土壤类型和各土地利用类型的构成组分多样性指数以及多网格尺度下的空间分布多样性指数,并提出一种用于评价土壤和土地利用相互关系的关联系数,求算了5 km网格尺度下南京市典型土种单元同9种土地利用类型之间的关联系数。研究结果表明,1986年至2003年这十余年间,南京市土地利用的构成组分变化明显,其中1986年的构成组分多样性为0.361,2003年为0.444。2003年南京市土地利用的空间分布离散性更高,5种主要土地利用类型的空间分布多样性均有明显增加。南京市典型土种与各土地利用类型关联系数的计算结果表明,多组关联系数的变化趋势相同,由此推断相比于1986年,2003年南京市土壤与土地利用之间的相互联系更为复杂多变。

关 键 词:土壤多样性  仙农熵  南京市  关联系数
收稿时间:2010/12/10 0:00:00
修稿时间:3/23/2011 9:44:59 AM

Correlative evaluation of pedodiversity and land use diversity based on Shannon entropy
Duan Jinlong and Zhang Xuelei.Correlative evaluation of pedodiversity and land use diversity based on Shannon entropy[J].Acta Pedologica Sinica,2011,48(5):893-903.
Authors:Duan Jinlong and Zhang Xuelei
Affiliation:1 Institute of Natural Resources and Eco-environment,Zhengzhou University 2 School of Hydraulic and Environmental Engineering, Zhengzhou University,1 Institute of Natural Resources and Eco-environment,Zhengzhou University 2 School of Hydraulic and Environmental Engineering, Zhengzhou University
Abstract:A case study of Nanjing City was conducted using diversity theories and methods to evaluate correlation between soil and land use. Based on the remote sensing data of the city in 1986 and 2003, its land uses were classified, and constituent diversity index and spatial distribution diversity index in different grid scales of each soil and each land use pattern was worked out and a connection index was proposed to evaluate the relationship between soil and land use pattern. Furtheron, the connection indice between 3 typical types of soils and 9 land use patterns in the city were calculated at a 5km-grid scale. Results show that during the years from 1986 to 2003, significant changes took place in land use composition with constituent diversity increased from 0.361 in 1986 to 0.444 in 2003. The spatial distribution discreteness of land use patterns was significantly higher in 2003, and so was the spatial distribution diversity of 5 major types of land use. The calculation of the connection indice between typical types of soils and various land use patterns indicate that quite a number of pairs of connection indice varied in a similar trend, so it could be inferred that compared to the situation in 1986, the correlations between soils and land use patterns in Nanjing City were more complicated and varied in 2003.
Keywords:Pedodiversity  Shannon entropy  Nanjing City  Connection index
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