塞罕坝华北落叶松人工林生产力对坡向的响应  

Responses of Larix principis-rupprechtii Plantation Productivity on Slope Aspect

作　　者：贾忠奎[1] 公宁宁[1] 姚凯 司瑞雪 程顺 王立东 张田田[1] 游伟斌[1] 王西洋[1] 刘杰[1] 

机构地区：[1]北京林业大学省部共建森林培育与保护重点实验室,北京100083 [2]河北省塞罕坝机械林场,河北围场068466

出　　处：《西北林学院学报》2012年第4期1-6,共6页Journal of Northwest Forestry University

基　　金：中央高校基本科研业务费专项资金(BLJD200904);北京林业大学科技创新计划项目(TD2011-08);林业公益性行业科研专项经费项目(201004021);林业科技推广项目(2011-44);国际科技合作项目(2009DFA92900)

摘　　要：以9块华北落叶松人工林标准地及9株解析木为研究对象,通过对不同坡向条件下(曼甸、阳坡、阴坡)华北落叶松人工林生长、生物量及生产力进行研究,结果表明,华北落叶松具有较好的适应性,在3种立地中曼甸上华北落叶松的胸径生长较大,树高差异不明显;同一林龄条件下,曼甸林分的生物量较阳坡、阴坡的大;各组分的含碳量以曼甸的最大,阴坡、阳坡差别较小;曼甸的生产力>阳坡>阴坡。Abstract ： Nine sampling plots and 9 analytic trees were selected to examine the responses of Larix princip- is rupprechtii plantation productivity on slope aspect. The results showed that L. principis-rupprechtii demonstrated good adaptability to different slope aspects. The DBH slightly increased on Austin Mann, height was not significantly different. Stand total biomass and biomass increased with the increase of age in three sites. With the same age, biomass in Austin Mann was higher than those in the sunny and shady slopes. Carbon content and productivity were the highest in those growing in Austin Mann.

关 键 词：华北落叶松人工林 坡向 生物量 生产力 

分 类 号：S718.556[农业科学—林学]