摘要
以海口市为研究对象,采用最小耗费距离模型和克里格差值法,对海口市景观格局进行了优化研究,以为海口市生态环境建设提供参考。结果表明:1)海口市有生态源地46块,北部数量少而规模大、南部数量多而规模小,主要受社会经济活动和地形地貌的影响。2)隐性生态阻力面与显性生态阻力面构建了综合生态阻力面,相比传统方法构建的阻力面,理论上更接近实际状态。隐性生态阻力面与显性生态阻力面的差异能反映生态脆弱局部,这些局部是容易被忽视而又需要重点建设的区域。3)海口市有生态廊道92条,其中建设用地生态廊道21条,耕地生态廊道13条,林地生态廊道58条;有生态节点64个,其中建设用地生态节点1个,耕地生态节点11个,林地生态节点52个。生态廊道和生态节点的功能因类型差异而不同,在生态建设中需采取科学合理的建设措施。
In order to provide scientific basis for ecological environment construction in Haikou,this paper studied the landscape pattern optimization of Haikou.It utilized the minimum cumulative resistance（MCR）model and Kriging interpolation method to explore the way of optimization of landscape ecological pattern in Haikou.The results showed that：1）Haikou had 46 blocks of ecological sources that were mainly affected by social and economic activities and natural topography and geomorphology.Most blocks were located in southern part with small scale,while large scale blocks with small number were in northern part of Haikou.2）The comprehensive ecological resistance surface was constituted by dominant and recessive ecological resistance,which was theoretically closer to the actual state compared those built by traditional methods.The potential ecological weak points reflected in dominant and recessive ecological resistance always were the key construction region but they were easily ignored.3）Haikou had 92 ecological corridors,including 21 ecological corridors of construction land,13 arable land ecological corridors and 58 forest ecological corridors.There were 64 ecological nodes in Haikou,including one of the construction land ecological node,11 cultivated ecology nodes and 52 forest ecological nodes.The functions of ecological corridors and ecological nodes differed depending on different types,and reasonable measures should be adopted to carry out ecological construction.
出处
《西北林学院学报》
CSCD
北大核心
2016年第3期233-238,共6页
Journal of Northwest Forestry University
基金
国家林业行业公益性项目(201004032)
海南省林业厅重点科研项目(LK20118478)
湖南省"十二五"重点学科-森林经理学科(034-0014)
关键词
海口市
最小耗费距离模型
克里格插值法
景观格局优化
Haikou City
the minimum cumulative resistance model
Kriging
landscape pattern optimization
