基于生态功能强度分析的滩涂围垦区景观格局优化  

Landscape pattern optimization based on intensity of ecological function of mud flat reclamation: A case study of Dongtai County of Jiangsu Province

作　　者：王明月[1,2] 李加林[1,2] 郑忠明[3] 姜文达[1] 徐谅慧[1] 杨磊[1] 袁麒翔[1] 卢雪珠 肖望 

机构地区：[1]宁波大学城市科学系,浙江宁波315211 [2]浙江省海洋文化与经济研究中心,浙江宁波315211 [3]宁波大学海洋学院,浙江宁波315211 [4]连云港金海岸开发建设有限公司,江苏连云港222042

出　　处：《生态学杂志》2015年第7期1943-1949,共7页Chinese Journal of Ecology

基　　金：国家自然科学基金项目(41171073;41471004);浙江省自然科学基金项目(Y5110321);海洋公益性行业科研专项经费项目(201205005);宁波大学研究生科研创新基金项目(G14053);宁波大学重点学科课题(No.ZX2013000646)资助

摘　　要：滩涂匡围与开发对沿海地区景观格局与生态过程产生着重要影响。以江苏沿海典型围垦区东台市为研究区,基于3S技术,运用累积阻力模型,结合景观格局特征和生态服务价值,分析了生态功能的空间分布,并采用构建源地、生态廊道和生态节点等方法进行景观格局的优化设计。结果表明:东台市在长期大规模围垦背景下,出现景观破碎化、连通性降低等问题,研究区景观生态功能强度总体上由东向西逐渐变弱;基于最小累积阻力模型的生态功能空间分析是定位生态源地和分析生态流运行的关键;源地保护、廊道构建和节点强化等主要优化措施可以为生态功能改善提供指导方向。本研究可为东台市相关部门有针对性地开展围垦区生态保护工作提供科学决策依据。Reclamation and development of coast zone has produced important influence on its landscape patterns and ecological processes. Taking Dongtai County, a typical reclamation district of Jiangsu Province, as a study area, this paper analyzed the spatial distribution characteristics of ecological function based on GIS space technology and the minimum cumulative resistance （MCR） model. Then the authors put forward the landscape pattern optimization model of Dongtai by constructing ecological sources, ecological corridors and ecological nodes. Long-time and large-scale reclamation led to high landscape fragmentation and low connectivity of landscape pat- terns. Ecological function in the study area gradually weakened from east to west. The space anal- ysis of ecological function based on the cumulative resistance model is the key to locate the eco- logical sources and to analyze ecological stream running. Protecting sources, building corridors and strengthening nodes are the main optimization measures to improve the ecological functions. The study provides a scientific basis of decision-making for relevant departments to carry out tar- geted ecological protection in Dongtai.

关 键 词：东台市 景观格局 最小累积阻力模型 生态功能 

分 类 号：P748[天文地球—海洋科学] P901