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2种密度下樟子松单株生物量和生长量的比较

Comparision of Growth and Biomass of Individual Plant of Pinus sylvestris var.mongolicaunder Two Kinds of Densities

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【作者】 韩辉张柏习孙海红刘晓峰于致龙

【Author】 Han Hui;Zhang Baixi;Sun Haihong;Liu Xiaofeng;Yu Zhilong;Liaoning Provincial Dune-Fixation and Afforestation Institute;Bureau of Forestry in Fuxin City;Qingshan Protection Administration of Liaoning Province;

【机构】 辽宁省固沙造林研究所阜新市林业局辽宁省青山保护局

【摘要】 以章古台22年生1 420株·hm-2樟子松林一次性间伐成密度为404株·hm-2和810株·hm-2并采取封育措施的2种林分为调查对象,调查单株生物量、生长量及林下植被。结果表明:404株·hm-2与810株·hm-2相比,11a后樟子松单株生物量干质量前者为后者的1.64倍,根系粗壮程度、草本盖度前者高于后者;14a后胸径生长量前者为后者的1.11倍;有无垂直主根取决于土壤的质地;810株·hm-2林分在林内出现衰弱死亡林木以后才侵入灌木。

【Abstract】 Taking two kinds of stands(404trees·hm-2and 810trees·hm-2)which were thinned by 22-year-old stand in Zhanggutai Area(1 420trees·hm-2)as survey objects,the volume,growth & understory vegetation of individual plant were investigated.Result shows that 404trees·hm-2 compared to 810trees·hm-2,from the aspect of the dry mass of volume for the individual plant after 11 years,the former is 1.64 times than that of the latter;from the aspect of the degree of sturdy and herbaceous coverage for radication,the former is higher than that of the latter;from the aspect of the DBH growth 14 years later,the former is 1.11 times than that of the latter,with or without the vertical taproot depending on the soil texture;shrub would invade the stands(810trees·hm-2)which appeared death or weak trees.

【关键词】 樟子松生物量章古台
【Key words】 Pinus sylvestris var.mongolicabiomassZhanggutai area
【基金】 林业公益性行业科研专项经费项目(201004063)
  • 【文献出处】 防护林科技 ,Protection Forest Science and Technology , 编辑部邮箱 ,2015年05期
  • 【分类号】S791.253
  • 【下载频次】72
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