摘要
基于InVEST-Habitat Quality模型和GeoDa软件,分析了1980年至2015年间嫩江流域生境质量的时空格局,并利用地理探测器定量探讨其影响因素。结果发现:1)35年来,流域生境质量指数呈不断下降趋势,由1980年的0.7031,下降到2000年的0.6997,2015年的0.6986,但下降速率趋缓;2)县域生境质量高值集聚区主要分布在流域西北部,呈逐年退缩趋势,而低值区主要集中在流域东南部且不断扩张;3)单位面积GDP、人口密度与年均气温因子的协同增强效应,是导致流域生境质量不断下降的主要原因;但在与自然和社会经济因子的交互作用下,自然保护区建设等政策调控因子的保护作用开始显现。因此,建议加强流域东南部生境质量低值集聚区内各县域的自然保护区建设力度,以避免因其生境质量的持续下降而影响到区域的可持续发展。
The spatial and temporal evolution characteristics of habitat quality in the Nenjiang River Basin from 1980 to 2015 were analyzed by the InVEST-Habitat Quality model and GeoDa software,then the driving forces were detected by GeoDetector.According to the assessment:1)the habitat quality index had declined gradually from 1980(0.7031),2000(0.6997)to 2015(0.6986),but the rate of decline became slower;2)areas with higher habitat quality were spatially agglomerated at north-western part,which was shrinking year by year,meanwhile,areas with lower habitat quality were spatially agglomerated in the core area of Songnen Plain at south-eastern part,which was expanding gradually;3)the main driving force was synergic effect of GDP per area and population density with annual mean temperature;fortunately,the protection effect of protected areas has emerged gradually under its intersection effect with natural and socioeconomic factors.So,construction of protected areas in the counties of lower habitat quality should be enhanced for their sustainable development.
作者
王治良
李英
罗金明
刘复刚
王永洁
李洪影
WANG Zhi-liang;LI Ying;LUO Jin-ming;LIU Fu-gang;WANG Yong-jie;LI Hong-ying(Science College of Qiqihar University,Qiqihar 161006,China;Key Laboratory of Land Surface Pattern and Simulation,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China;Chemistry and Chemical Engineering College of Qiqihar University,Qiqihar 161006,China)
出处
《环境生态学》
2020年第2期19-26,共8页
Environmental Ecology
基金
黑龙江省哲学社会科学研究规划青年专项(16JLC01)
黑龙江省省属高等学校基本科研业务专项(135209252),齐齐哈尔市市级科技计划(RKX-201911)资助。
