【作者】 段金龙； 张学雷； 吴强；

【Author】 Duan Jinlong~(1,2),Zhang Xuelei~(1,2+),Wu Qiang~2 (1.Institute of Natural Resources and Eco-environment,Zhengzhou University,Zhengzhou 450001,China; 2.School of Hydraulic and Environmental Engineering,Zhengzhou University,Zhengzhou 450001,China)

【机构】 郑州大学自然资源与生态环境研究所； 郑州大学水利与环境学院；

【摘要】 城市化的高速发展对土壤资源的合理利用和保护提出更高要求,土壤多样性是评价土壤分布特征的重要因子,在土壤保护工作中具有重要作用。以河南省为例,基于经典和最新的土壤多样性相关研究方法,统计并计算了各土属类型的面积、斑块数量和1km×1km网格尺度下的空间分布多样性,同时甄选出河南省的稀有土属和代表性土属类型。研究结果表明,河南省的土属组成较为平均,Pielou均匀度指数取0.810。土属面积、斑块数量和空间分布多样性之间关联明显,其中面积与空间分布多样性之间的回归方程为y=0.080ln(x)+0.050,R~2=0.997。土属空间分布多样性的数值构成符合正态分布。河南省至少有8个土属类型在数量和分布上濒临灭绝,需要给予更多关注。不同自然、人文条件下,单位面积上的土属数目一般不同。更多还原

【Abstract】 More attention should be paid in the protection and using of soil resources due to the rapid development of urbanization,since pedodiversity is an important factor for the evaluation of soil distribution characteristics which plays an important role in the soil conservation practice.Classical and new pedodiversity methodology were used by a case study of Henan province to calculate the total area, soil patch numbers and spatial distribution diversity in lkmx x 1km grid scale of each soil family type before the rare soil families and representative soil families of Henan province were selected and defined. Results show that the constituent feature of soil families in Henan province is quite even and the Pielou evenness index values 0.810.There is a significant relationship between total area,patch number and spatial distribution diversity of soil families and the regression equation between total area and spatial distribution diversity is y=0.0801n(x)+0.050,R~2=0.997.The value constitution of soil family spatial distribution diversity fits the normal logarithmic distribution.At least eight soil families are endangered and need more attention in Henan.The soil family number per unit area is generally different under different natural and cultural conditions.更多还原