基于景观格局的盐城海岸带土地利用时空变化分析

doi:10.11870/cjlyzyyhj201608005

摘要/Abstract

摘要： 在GIS和RS技术支持下，以行政区划为评价单元，通过土地利用转移矩阵、景观格局指数对盐城海岸带土地利用变化的主要方式、景观格局特征及时空分异规律进行定量分析。结果表明：2000～2010年，盐城海岸带土地利用类型以耕地、建设用地和水域为主，其中耕地是盐城海岸带的优势类型，虽然近年来呈逐渐下降的趋势，但仍是区域景观基质类型，均占总面积的78%以上；海岸带景观水平趋于破碎化，区域景观格局更加复杂化、分散化和多样化；研究区北部景观水平特征指数较中部、南部为高。自然地理条件、经济发展水平及不同土地利用方式所带来的利益差异是导致盐城海岸带景观格局变化的关键驱动因素。

关键词: 土地利用, 景观格局, 时空变化, 盐城海岸带

Abstract: Land use changes and its transformation have been quantitatively analyzed in coastal area of Yancheng city, using land use transfer matrix and landscape pattern index based on remote sensing data and land use data under the support of GIS and RS technology. The results showed as follows. Firstly, the land use types in Yancheng coastal zone are the cultivated land, construction land and water area from 2000 to 2010. The cultivated land is the dominant type, which accounts for more than 78% of the total area and is the basic local landscape type, although it has gradually declined in recent years. Secondly, coastal landscape tends to fragmentation, and regional landscape pattern is more complicated, decentralized and diversified. Thirdly, the landscape level index in northern area is higher than that in the central and southern part. Fourth, the main driving forces leading to the changes of landscape patterns and regional differences in the coastal zone are natural geographical conditions, the comparative advantage of land use, and the level of economic development. With the increasing of tidal flat reclamation, port development, and other human interference, the conflict between ecological environment protection and economic development will be more and more serious. Therefore, this study on the spatial-temporal variation of land use on landscape patterns will benefit to the sustainable development of coastal zone.

Key words: land use, landscape patterns, spatial-temporal variation, coastal zone of Yancheng

中图分类号:

P748

何华春, 周汝佳. 基于景观格局的盐城海岸带土地利用时空变化分析[J]. 长江流域资源与环境, 2016, 25(08): 1191-1199.

HE Hua-chun, ZHOU Ru-jia. SPATIAL-TEMPORAL VARIATION OF LAND USE BASED ON LANDSCAPE PATTERNS IN THE COASTAL ZONE OF YANCHENG, JIANGSU[J]. RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN, 2016, 25(08): 1191-1199.

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