福建长汀植被覆盖度变化的主要驱动影响因子及影响力分析  

Driving factors on vegetation coverage change and influence analysis in Changting,Fujian

作　　者：王文辉[1,2] 马祥庆[1,2] 田超[1,2] 靳全锋 郭福涛[1,2] WANG Wenhui MA Xiangqing TIAN Chao JIN Quanfeng GUO Futao(College of Forestry, Fujian Agriculture and Forestry University Soil and water conservation in collaborative innovation center in the red soil region on both sides of the Taiwan straits, Fuzhou, Fujian 350002, China)

机构地区：[1]福建农林大学林学院 [2]海峡两岸红壤区水土保持协同创新中心,福建福州350002

出　　处：《福建农林大学学报（自然科学版）》2017年第3期277-283,共7页Journal of Fujian Agriculture and Forestry University:Natural Science Edition

基　　金：国家科技支撑计划项目(2014BAD15B02);国家林业局林业公益性行业科研项目(201304303)

摘　　要：运用多元线性回归和逐像元趋势分析法,并结合Arc GIS技术手段对2000—2010年福建长汀植被覆盖度变化的驱动因子及影响力进行定量分析.将影响当地植被覆盖变化的相关因素分成气象因素、非气象因素(包括地形因子、社会经济)和全变量因素分别进行分析.研究结果表明:2000—2010年,长汀植被覆盖度整体以增加为主,仅个别地区出现减少的现象;模型拟合结果显示,非气象因素整体对长汀植被盖度变化的影响大于气象因素;变量重要性研究结果表明:农作物播种面积、当地财政支出、坡度和水保活动收益是影响长汀植被覆盖度4个重要因素,进一步揭示了政策和经济因素的重要性.Multiple linear regression, pixel-by-pixel trend analysis and ArcGIS technology were used in this study to analyze the main driving factors and their influence on vegetation change in Changting, Fujian Province in 2000-2010. All factors relating to changes of vegetation coverage were divided into 3 groups, including meteorological factors, non-meteorological factors（topographic factors, socio-economic factors）, and all-variable factors（all factors combined）, and analysis were conducted separately. The results showed that vegetation coverage increased overall in 2000-2010 in Changting, except slightly regional degradation. Fitting model revealed that non-meteorological factors posed greater influence on vegetation coverage than meteorological factors, in which crop sown area, local fiscal expenditure, slope and water conservation activities played the most important roles. Therefore, functions of policy and economic factors on vegetation recovery should be emphasized.

关 键 词：植被覆盖 驱动因子 多元线性回归 长汀 

分 类 号：Q948[生物学—植物学]