南方丘陵区耕地质量与景观格局指数相关性分析  

Correlation analysis between cultivated land quality and landscape pattern index in south hilly areas

作　　者：韩逸 郭熙[1,2] 江叶枫 饶磊 孙凯[1,2] 余慧敏 HAN Yi;GUO Xi;JIANG Ye-feng;RAO Lei;SUN Kai;YU Hui-min(Academy of Land Resource and Environment,Jiangxi Agricultural University,Nanchang 330045,China;Key Laboratory of Poyang Lake Watershed Agricultural Resources and Ecology of Jiangxi Province,Nanchang 330045,China)

机构地区：[1]江西农业大学国土资源与环境学院,江西南昌330045 [2]江西省鄱阳湖流域农业资源与生态重点实验室,江西南昌330045

出　　处：《江苏农业学报》2018年第5期1057-1065,共9页Jiangsu Journal of Agricultural Sciences

基　　金：国家自然科学基金项目(41361049);江西省自然科学基金项目(20122BAB204012);江西省赣鄱英才"555"领军人才项目(201295)

摘　　要：研究耕地质量与耕地景观格局的相关性,可为耕地质量保护与提升工作提供景观生态学依据。在Arc GIS 10.2与Fragstats 4.2软件的支持下,选取斑块面积、斑块所占景观面积的比例、斑块密度、边界密度、平均斑块大小、景观形状指数、蔓延度指数、景观分离度、香农多样性指数共9个景观格局指数进行研究,同时将耕地国家自然质量等级指数、耕地国家利用质量等级指数和耕地国家经济质量等级指数分别与耕地景观格局指数进行相关性分析。结果表明:耕地国家自然质量等级指数与边界密度、平均斑块大小显著相关,相关系数分别为-0.361(P<0. 01)和0. 344 (P<0. 05);耕地国家利用质量等级指数与景观形状指数、景观分离度、香农多样性指数显著相关,相关系数分别为0. 271 (P<0. 05),0. 323 (P<0. 05)和0. 290 (P<0. 05);耕地国家经济质量等级指数与边界密度显著相关,相关系数为-0.283(P<0. 05)。耕地质量与部分耕地景观格局指数存在显著相关性,区域耕地景观格局可以在一定程度上反映区域耕地质量。The study on the relationship between the cultivated land quality and landscape pattern can provide landscape ecological basis for the protection and promotion of cultivated land quality.With the support of ArcGIS 10.2 and Fragstats 4.2 software,a total of nine landscape pattern indices:class area,percentage of landscape,patch density,edge density,mean patch size,landscape shape index,contagion index,landscape division index and shannon's diversity index were selected to analyze the correlation of landscape pattern index with cultivated land national natural quality level index,cultivated land national use quality level index and cultivated land national economic quality level index.The results showed that the cultivated land national natural quality level index was significantly correlated with the edge density and mean patch size,the correlation coefficients were-0.361(P<0.01)and 0.344(P<0.05).Cultivated land national use quality level index was significantly correlated with the landscape shape index,landscape division index and shannon's diversity index,the correlation coefficients were 0.271(P<0.05),0.323(P<0.05)and 0.290(P<0.05).Cultivated land national economic quality level index was significantly correlated with the edge density,the correlation coefficient was-0.283(P<0.05).That means the quality of cultivated land is correlated with a part of cultivated land landscape pattern indices,regional cultivated land landscape pattern can reflect the quality of cultivated land to a certain extent.

关 键 词：景观生态学 耕地质量 景观格局指数 相关性分析 

分 类 号：F301.24[经济管理—产业经济]