期刊论文

中文

湖北大学学报(自然科学版)

1000-2375

2018

40

2

162-171

10.3969/j.issn.1000-2375.2018.02.010

41571487:国家自然科学基金 2016CFA027:湖北省自然科学基金创新群体项目

本校为第一机构

以江汉平原为研究区,计算平均斑块面积、形状指数、分离度指数等表征斑块形态特征的指标,定量分析土壤类型空间分布及其与土地利用空间结构的关系和变化特征.结论如下:1)江汉平原主要土壤类型为水稻土和潮土两种耕作性土壤,二者连片性最好,聚集程度最高,斑块空间结构差异较小;地带性土壤红壤的连片性和聚集程度优于黄棕壤,其斑块形状和斑块镶嵌结构的复杂程度也较黄棕壤高.2)不同地类对土壤类型表现出不同程度的选择性,林地、草地主要分布土壤类型分别为黄棕壤和草甸土,其余各地类景观主要分布土壤类型均为水稻土和潮土;1990—2010年各地类在不同土壤类型上所占比重发生变化,变化程度差异明显,但...

A case study was carried out in Jianghan Plain by calculating some indices that characterized the index of patch,such as average patch area,landscape shape index and separation index,to quantitatively analyze the spatial distribution of soil types and its relationship and change characteristics with land use spatial structure. The results are as follows:1) The major arable soil types in Jianghan Plain are paddy soil and fluvo-aquic,and they both have the best connectivity and aggregation degree,and the spatial structure differences of patches are small. The zonal soil mainly consisted of red s...