基于适宜粒度的曹妃甸新区土地利用景观格局分析  

Land-use Spatial Analysis for Caofeidian New District Based on Suitable Grain Size

作　　者：张乐[1] 王观湧 霍习良[1] 门明新[1] 

机构地区：[1]河北农业大学,河北保定071000

出　　处：《土壤》2014年第6期1149-1156,共8页Soils

基　　金：国家重点基础研究发展规划资助项目(2005CB121107);国土资源部公益性行业科研专项(201311060)资助

摘　　要：选取适宜粒度是保证准确分析土地利用景观格局的关键。本文以曹妃甸新区为研究区,应用RS、GIS等手段并结合景观指数法,探讨景观类型比例、景观类型指数以及综合面积损失随分析粒度变化效应,确定适宜分析粒度,从景观组成形态以及景观构型两个方面分析曹妃甸新区景观格局。结果表明:部分景观指数与粒度可拟合为数学函数关系(R2>0.905 4),并确定适宜分析粒度域(30,50)和适宜粒度50 m;曹妃甸新区土地利用景观类型较为丰富,但无明显优势类型,要素分布较为密集,景观的破碎化程度较高,各景观类型分布极不均匀,不利于景观空间格局的维持。It is very important that an appropriate grain size is selected to accurately analyze land-use landscape patterns. RS, GIS and the landscape index method was used to explore the proportion of landscape types, landscape index and with grain size change and the area loss, ultimately determined the suitable grain size for analyzing land-use landscape pattern of Caofeidian new district under two aspects of landscape elements： landscape structure and landscape configuration. The results showed that some landscape indices and grain size could be fitted to a mathematical relationship（R^2〉0.905 4）, and determined the appropriate granularity analysis domain（30, 50） and suitable size 50 m. Land-use landscape type was rich of Caofeidian New District, but no dominant type. The elements distribution were densely and the degree of fragmentation was serious. The landscape type distribution was extremely uneven, not conducive to the maintenance of landscape spatial pattern.

关 键 词：适宜粒度 景观指数 景观格局分析 曹妃甸新区 

分 类 号：X171[环境科学与工程—环境科学]