山地高梯度森林生物质能效应研究(Ⅱ):案例  

High Gradient Effects of Forest Biomass Energy in Mountainous Region(Ⅱ):Case Study

作　　者：明庆忠[1,2] 郭树荣[1,2] 角媛梅[1,2] 

机构地区：[1]云南师范大学旅游与地理科学学院,云南昆明650092 [2]云南师范大学高原地理过程与环境变化云南省重点实验室,云南昆明650092

出　　处：《山地学报》2011年第4期417-426,共10页Mountain Research

基　　金：国家自然科学基金重点项目(U0933604;40872118);云南省中青年学术带头人培养基金;云南省科技发展计划2009年重点项目;教育部科学技术研究重点项目(207102)资助~~

摘　　要：综合应用森林生物量及生产力计算﹑地理信息技术﹑生物地理统计等方法,对梅里雪山森林生物质能资源赋存量﹑资源总量以及与海拔、山地坡度和坡向等的关系作出定量计算,并对其相关性作分析,发现梅里雪山东坡森林生态系统潜在蕴藏生物质能资源具有明显的空间异质性和空间相关性:在海拔2 000～3 900 m,森林生物质能资源数量随着海拔的升高而逐渐增加,3 900 m以上急剧减少;生物质资源数量在坡度25°～35°期间最大,不同坡向上生物质资源数量差异明显,较为集中分布在东坡、东南坡和西北坡。相关分析表明,生物质能资源数量与地形因子海拔、坡度、坡向具有相关性,与海拔、坡向负相关,与坡度呈正相关,其皮尔森简单相关系数分别为-0.17,-0.86和0.30。在山体中部形成森林生物质能资源富集带,构成环形生态廊道,为山地生态系统和人居环境提供了优良环境条件。Integrated using methods of forest biomass and productivity,Geographic Information System,and biogeographic statistics,this paper is quantified the reserves of forest biomass energy,and its relationship to elevation,slope degree and slope aspects.The results indicate： the forest biomass energy in eastern Meili Snow Mountain have significant spatial heterogeneity and correlation,in which the forest biomass energy is increasing with elevation in between 2 000 to 3 900 meters above sea level,and is decreasing while the elevation is higher than 3 900 meters;The quantity of forest biomass energy is distributed mainly in between of 25 to 35 slope degree.It has obvious difference among slope aspects,in which eastern,southeastern,and northwestern aspects are relatively centralized.The correlation analysis between forest biomass energy and elevation,slope degree,and slope aspects indicate the negative correlation to elevation and slope aspect,and positive correlation to slope degree with a correlation coefficient of-0.17,-0.86 and 0.30,respectively.Therefore,the forest biomass energy concentrated at the middle belt of the Meili Snow Mountain formed an annular ecological corridor and provided a good living environment for mountainous ecosystems and local peoples.

关 键 词：森林生物质能 海拔 坡度坡向 高梯度效应 梅里雪山 

分 类 号：Q948[生物学—植物学]