基于地理探測(cè)器的沼澤濕地變化驅(qū)動(dòng)因子定量分析——以小三江平原為例
發(fā)布時(shí)間:2018-06-29 10:04
本文選題:驅(qū)動(dòng)因子 + 定量分析。 參考:《東北師大學(xué)報(bào)(自然科學(xué)版)》2017年02期
【摘要】:以濕地變化較為劇烈的小三江平原為研究區(qū)域,結(jié)合GIS和RS技術(shù),利用地理探測(cè)器方法定量分析了沼澤濕地變化的驅(qū)動(dòng)力,揭示了各驅(qū)動(dòng)因子在沼澤濕地變化中的作用及相互關(guān)系.結(jié)果表明:1986—2010年小三江平原沼澤濕地喪失嚴(yán)重,濕地喪失較多的地區(qū)主要位于研究區(qū)中部及東北部的草甸土和沼澤土土壤類型、低河漫灘地貌類型、海拔51~55m及1°~3°坡度處;1986—2010年間,小三江平原沼澤濕地喪失的主要驅(qū)動(dòng)因子按貢獻(xiàn)率大小排列依次為土壤類型、坡度、地貌、與河流距離、年降水量和海拔;各驅(qū)動(dòng)因子之間的交互作用大部分是非線性增強(qiáng),其中與保護(hù)區(qū)距離、與居民點(diǎn)距離和行政區(qū)的交互作用均呈非線性增強(qiáng)作用,坡度、土壤類型、地貌、與河流距離等自然因子之間的交互作用是相互減弱的;自然因子雖然對(duì)小三江平原濕地面積喪失的貢獻(xiàn)率較大,但它們必須在人為因子的作用下,是與人為因子的相互作用,共同造成小三江平原沼澤濕地的大面積喪失.
[Abstract]:Taking Xiaosanjiang Plain, where the wetland changes are more intense, as the research area, combining GIS and RS technology, the driving force of wetland change is quantitatively analyzed by using the method of geographical detector. The role and relationship of various driving factors in swamp wetland change were revealed. The results showed that the swamps in the Xiaosanjiang Plain were seriously lost from 1986 to 2010, and the areas with more wetland loss were mainly located in the meadow soil and marsh soil types in the middle and northeast of the study area, and the geomorphological types of the low floodplain. From 1986 to 2010, the main driving factors of wetland loss in Xiaosanjiang Plain were soil type, slope, geomorphology, distance from river to river, annual precipitation and altitude. The interaction between driving factors is mostly nonlinear enhancement, in which the interaction with protected area, residential area and district is nonlinear, slope, soil type, geomorphology, slope, soil type, landform, etc. The interaction with natural factors, such as river distance, is weakened. Although natural factors contribute a lot to the loss of wetland area in Xiaosanjiang Plain, they must interact with human factors under the action of human factors. Together caused the small Sanjiang Plain swamp wetland large area loss.
【作者單位】: 吉林師范大學(xué)旅游與地理科學(xué)學(xué)院;東北師范大學(xué)環(huán)境學(xué)院;
【基金】:國(guó)家自然科學(xué)基金資助項(xiàng)目(41071037) 教育部新世紀(jì)優(yōu)秀人才支持計(jì)劃項(xiàng)目(NCET-12-0730) 中央財(cái)政林業(yè)科技推廣示范項(xiàng)目(吉推(2014)16號(hào))
【分類號(hào)】:P208;P237;P901
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本文編號(hào):2081762
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