帽儿山实验林场白桦适生立地条件  

Suitable Site Conditions for Betula platyphylla in Maoershan Forest Farm Heilongjiang Province

作　　者：王鹏[1] 王石磊[1] 王庆成[1] 李开隆[1] 

机构地区：[1]林木遗传育种与生物技术教育部重点实验室(东北林业大学),哈尔滨150040

出　　处：《东北林业大学学报》2010年第10期9-11,共3页Journal of Northeast Forestry University

基　　金：林业科技支撑计划(2006BAD24B05);黑龙江省科技计划项目(GA06B301-4)资助

摘　　要：在东北林业大学帽儿山实验林场的白桦天然林中,依立地条件不同设立49块标准地,调查林木生长和立地因子,并进行优势木树干解析,运用数量化方法研究了白桦生长与立地因子的关系。结果表明,影响白桦天然林生长的主要立地因子依次为坡位、坡向、土壤A层厚和坡度,其中坡位为主导因子。帽儿山地区适宜白桦栽培的立地条件为阳坡、中坡位,厚层土壤;低平地(草甸和沼泽)不适于白桦栽培。Forty-nine sample plots were set up in the secondary Betula platyphylla forests in Maoershan Forest Farm of Shangzhi City,Heilongjiang Province to study the suitable site conditions for B.platyphylla in the region.The tree growth indexes and site factors for each plot were measured,and a dominant birch tree was selected for stem analysis.The relationships between the height growth of birch and site factors were quantitatively studied.Results show that slope position has the greatest influence on the height growth of birch,followed by slope aspect,topsoil depth and slope gradient.The suitable site conditions for the growth of birch trees are south facing slope,middle slope position,and deep soil in A horizon,while sites with lower slope position or flat landform（meadows and swamps）are unsuitable.

关 键 词：白桦 天然次生林 适生立地 评价 

分 类 号：S718.51[农业科学—林学]