摘要
为推动西南岩溶国家公园创建,本文以西南岩溶国家公园候选区贵州片区荔波县为研究区,从自然保护地中选取生态源地,基于自然资源、地形地貌和人类社会因素3个方面选取5个因子,利用层次分析法构建综合阻力面,结合最小累积阻力和电路工具提取生态廊道和生态障碍点,通过重力模型评价各生态源地间的相互作用强度和生态廊道的重要性,将生态廊道与道路网络交点作为生态断裂点,并根据不同生态安全区提出差别化管控策略,共同形成区域生态安全格局。结果如下:研究区域共选取生态源地15个,总面积为44313hm^(2);基于最小累积阻力模型提取生态廊道27条,总长度为195.78km,廊道在空间上呈网状分布;利用电路工具和相交工具分析识别生态障碍点41个、生态断裂点27个;综合分析阻力面和生态源地分布特征,结合地理单元和生态网络研究分析,构建了“五区两带”的区域生态安全格局。该格局的构建既遵循喀斯特生态系统的自然禀赋条件,又通过功能分区实现了生态保护与游憩开发的平衡,同时也为西南岩溶国家公园创建及生态文明建设提供了重要的理论支撑。
To advance the creation of the Southwest Karst National Park,this paper took Libo County,the Guizhou portion of the candidate area,as a case study.Ecological source patches were first delineated from the existing protected-area network.Five resistance factors derived from natural resources,topography and human disturbance were weighted by the Analytic Hierarchy Process to generate a synthetic resistance surface.Minimum-cumulative-resistance(MCR)modelling and circuit theory were then coupled to extract ecological corridors and identify barrier locations.A gravity model was employed to quantify interaction strength among source patches and to rank corridor importance.Road-corridor intersections were mapped as ecological fracture points.Finally,differentiated zoning strategies were proposed for distinct security zones,yielding an integrated regional ecologica-security pattern.The results showed that fifteen ecological source patches covering 44313 hm^(2)were selected;MCR analysis produced 27 ecological corridors with a combined length of 195.78 km,forming a reticulate network;circuit-based analysis detected 41 ecological barriers and 27 fracture points;and integrating the resistance surface,source distribution and geographical units produced a“five-zone,two-belt”security pattern.The pattern conforms to the intrinsic attributes of the karst ecosystem,balances strict conservation with recreational development through functional zoning,and provides a scientific blueprint for establishing the Southwest Karst National Park and for broader ecological civilization construction.
作者
覃欧换
柳华富
何怡
余成俊
潘鑫章
QIN Ouhuan;LIU Huafu;HE Yi;YU Chengjun;PAN Xinzhang(Libo County Forestry Bureau,Libo,Guizhou Province,558400,China;Management Bureau of Maolan National Nature Reserve,Libo,Guizhou Province,558400,China;Guizhou Provincial Forestry Bureau,Guiyang,Guizhou Province,550001,China)
出处
《内蒙古林业调查设计》
2025年第5期32-39,50,共9页
Inner Mongolia Forestry Investigation and Design
关键词
生态安全格局
国家公园
景观连通性
荔波县
ecological-security pattern
national park
landscape connectivity
Libo County
作者简介
覃欧换(1995-),女(布依族),贵州荔波人,林业助理工程师;通信作者:柳华富(1990-),男(彝族),贵州盘州人,林业工程师,E-mail:704940366@qq.com。
