摘要
生态节点可以连接破碎的生境斑块,提高景观之间的连通性。选取太行山中北段生态型贫困区域阜平县为研究区,将生态节点分为生态薄弱点、生态障碍点、生态夹点,采用形态学空间格局分析(MSPA)模型识别生态源地,采用最小累积阻力(MCR)模型构建最小累积阻力面,基于Linkage Mapper,运用粒度反推法、空间网络分析法、ArcGIS中的水文分析模块得出各类型生态节点规模、形状、组成形式。结果表明:研究区生态源地面积为25863.97 hm 2;生态节点共计120个,其中生态薄弱点75个、生态障碍点25个、生态夹点20个;由于400 m粒度是生态节点建设的合适参数,因此生态节点形成区域118个,总面积为2043.80 hm 2。针对各类型生态节点明确其建设形式,共有71个区域可建设为林地生态节点,43个区域可建设为水域生态节点,4个区域可建设为园地生态节点,该研究可为促进生态网络连通性提供借鉴意义。
The identification and maintenance of ecological nodes can connect broken habitat patches and improve the connectivity between landscapes.Fuping County,an ecologically poor area in the north-central section of the Taihang Mountains,was selected as the study area.In this paper,ecological nodes are divided into ecological weak points,ecological obstacle points,and ecological pinch points.The MSPA(morphological spatial pattern analysis)model was used to identify the ecological source,the MCR model was used to construct the minimum cumulative resistance surface,and the various types of ecological nodes were identified based on the Linkage Mapper analysis.When calculating the scale,shape,and composition of various types of ecological nodes,the granularity inverse method,the hydrological analysis module and the spatial network analysis module in ArcGIS were used.The results show the total ecological source of the study area is 25863.97 hm 2;There are a total of 120 ecological nodes,including 75 ecological weak points,25 ecological obstacle points and 20 ecological pinch points;Since 400 m grain size is a suitable reference for the construction of ecological nodes,there are 118 ecological node areas with a total area of 2043.80 hm 2.By clarifying the construction forms of various types of ecological nodes,a total of 71 areas could be constructed as forest ecological nodes,43 areas could be constructed as water ecological nodes,and 4 areas could be constructed as garden ecological nodes.This research provides a specific plan for the construction of local ecological nodes,and a reference for the promotion of ecological network connectivity.
作者
张美丽
齐跃普
张利
陈影
周亚鹏
陈亚恒
王树涛
ZHANG Mei-li;QI Yue-pu;ZHANG Li;CHEN Ying;ZHOU Ya-peng;CHEN Ya-heng;WANG Shu-tao(College of Resources and Environmental Science,Hebei Agricultural University,Baoding 071000,China;Shijiazhuang Shixiongdi Land Environmental Technology Service Co.Ltd.,Baoding 071000,China;College of Land and Resources,Heibei Agricultural University,Baoding 071000,China)
出处
《生态与农村环境学报》
CAS
CSCD
北大核心
2020年第12期1569-1578,共10页
Journal of Ecology and Rural Environment
基金
国土资源部公益性行业科研专项经费(201311060)
河北省科技支撑计划(132276329)。
作者简介
张美丽(1995-),女,河北新乐人,研究方向为土壤与土地资源持续利用。E-mail:965885627@qq.com;通信作者:王树涛,E-mail:55381040@qq.com。
