CAJ | 학술논문

边界效应受多种因子影响,在不同时空尺度下表现出不同的边界效应深度.目前关于边界效应深度影响因子的研究只有少量定性报道,缺少定量分析.以岷江上游林农边界为例,分析了生物量边界效应深度的影响因子.应用GIS软件,将边界类型图与数字高程图、土地利用图、降雨数据的叠加,获取边界所处海拔、坡度、坡向、降雨以及边界两侧斑块面积.在SPSS软件中对已获得的边界效应深度与以上诸因子进行多元线性回归分析.研究结果表明:林农边界效应深度与海拔和坡度存在显著线性回归关系,呈负相关,即海拔越低、坡度越小边界效应深度越大;坡向对边界效应深度影响较小,降雨和林块面积对边界效应深度影响不明显.
변계효응수다충인자영향,재불동시공척도하표현출불동적변계효응심도.목전관우변계효응심도영향인자적연구지유소량정성보도,결소정량분석.이민강상유임농변계위례,분석료생물량변계효응심도적영향인자.응용GIS연건,장변계류형도여수자고정도、토지이용도、강우수거적첩가,획취변계소처해발、파도、파향、강우이급변계량측반괴면적.재SPSS연건중대이획득적변계효응심도여이상제인자진행다원선성회귀분석.연구결과표명:임농변계효응심도여해발화파도존재현저선성회귀관계,정부상관,즉해발월저、파도월소변계효응심도월대;파향대변계효응심도영향교소,강우화림괴면적대변계효응심도영향불명현.
A variety of factors affect edge influence, edge influence depths vary in different time and space scales. At present, only small amount of qualitative researches on edge influence depth's affecting factors were reported, furthermore quantitative analysis researches lack, thus more researches, especially quantitative researches, are needed. This paper analyzed affecting factors of biomass edge influence depth using data of the upper reaches of Min River forest and farmland boundaries. Using GIS software, we o-verlap boundary type map, digital elevation map, land-use map and rainfall data map to get elevations, slopes, aspects and precipitations of the edges and patch areas on both sides of the edges, which are further processed with DEI using multiple linear regression analysis method in SPSS. The results show that edge influence depth between forest and farmland is affected by elevation and slope evidently and there is negative correlation between them. When elevation and slope of the boundary is less, the DEI is broader. Aspect impacts DEI less obviously, while precipitation and patch area have no evident impacts on DEI.