应用生态学报2017，Vol.28Issue(9)：2856-2862,7.DOI:10.13287/j.1001-9332.201709.024
地形对典型阔叶红松林叶面积指数分布的影响
Influence of topography on leaf area index in a typical mixed broadleaved-Korean pine forest in Xiaoxing'an Mountains, China
摘要
Abstract
Based on a 30 hm2 mixed broadleaved-Korean pine (Pinus koraiensis) forest monitoring plot at Fenglin National Nature Reserve in Xiaoxing'an Mountains,China,we estimated leaf area index (LAI) for major tree species and total LAI for all species using empirical models between LAI and basal area.We explored the influence of four kinds of terrain factors (including altitude,slope degree,slope aspect and curvature) and the combination influence on the spatial distribution of LAI.Results showed that the four terrain factors all had a significant effect on spatial distribution of LAI for five major tree species,including P.koraiensis,Abies nephrolepis,Tilia amurensis,Ulmus laciniata and Acer mono.But the slope aspect had a significant effect on the spatial distribution of LAI for Betula costata.The four kinds of terrain factors all significantly affected the spatial distribution of total LAI for all species.The plot could be divided into five habitat types,including the ridge,sunny,valley sunny side,shady and valley shady side.The habitat types had significant effects on the spatial distribution of total LAI,and the LAI in the ridge with a mean value of 8.85 was significantly higher than that in the other habitat types,followed by LAI in sunny with a mean value of 7.62.The LAI in the valley sunny and shady sides did not differ significantly,and the valley shady side had the lowest LAI,with a mean value of 4.42.关键词
叶面积指数/海拔/坡度/坡向/曲率/生境类型Key words
leaf area index/altitude/slope degree/slope aspect/curvature/habitat type引用本文复制引用
刘志理,毕连柱,宋国华,王全波,刘琪,金光泽..地形对典型阔叶红松林叶面积指数分布的影响[J].应用生态学报,2017,28(9):2856-2862,7.基金项目
本文由国家自然科学基金项目(31600587)和中央高校基本科研业务费专项资金项目(2572017EA02)资助 （31600587）
This work was supported by the National Natural Science Foundation of China (31600587),and the Fundamental Research Funds for the Central Universities (2572017EA02). （31600587）
