贵州省黎平县狭叶方竹林分结构及生物量初步研究

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英文篇名：Preliminary Study on the Stand Structure and Biomass of Chminobambusa angustifoliain Liping County of Guizhou Province 作者：杨松 ; 吴芳明 ; 张佐玉 ; 张喜 英文作者：YANG Song;WU Fang-ming;ZHANG Zuo-yu;ZHANG Xi;Forestry Bureau of Liping County;Guizhou Academy of Forestry; 关键词：狭叶方竹 ; 林分结构 ; 地径-高度关系 ; 生物量分配 英文关键词：Chminobambusa angustifolia;;Stand structure;;Relationship between diameter and height;;Biomass allocation 中文刊名：贵州林业科技 英文刊名：Guizhou Forestry Science and Technology 机构：贵州省黎平县林业局;贵州省林业科学研究院; 出版日期：2019-05-15 出版单位：贵州林业科技 年：2019 期：02 基金：国家重点研发计划课题(2016YFC0502605);; 贵州省科技厅黔科合平台人才([2017]5793)课题 语种：中文; 页：10-14 页数：5 CN：52-1091/S 分类号：S718.5

摘要

采用1.0m×1.0m样地逐株测定及全生物量收获法研究了黎平县狭叶方竹林的林分结构与生物量组成。结果发现其林分平均地径0.706cm、平均高度141.8cm、平均立竹度307500株/hm~2,新生竹株数占比0.32,竹鞭分布深度3～5cm,总芽量700000牧/hm~2、壮芽量210000牧/hm~2。平均地径、平均高度、立竹度、总芽量和壮芽量密度值有随海拔高度升高而增加的趋势,壮芽量比值的变化趋势相反。新竹地径(D_0)-高度(H)的直线型(H_1)和幂函数型(H_2)模拟式为H_1=185.62D_0+13.088、H_2=189.74D_(00.8848),老竹的相应值为H_1=237.29D_0-28.844、H_2=208.84D_(01.2531),可应用于径-高关系的预测。狭叶方竹林干重生物量变幅9.12～24.56吨/hm~2、平均值14.93吨/hm~2,有随海拔高度升高而生物量值增加的趋势。干重生物量的构件排序为秆(37.23%)>叶(16.53%)>鞭(14.81%)>枝(11.62%)>篼(11.16%)>根(8.65%),地上部分(65.38%)>地下部分(34.62%)。为狭叶方竹林开发提供了一定理论依据。
        The stand structure and biomass composition of bamboo forest of Chminobambusa angustifoliain Liping county were studied by 1.0 m×1.0 msample plot and total biomass harvesting method.The results showed that the forest had an average diameter at ground (DAH) of 0.706 cm,an average height (H) of 141.8 cm,an average standing density (N) of 307500 plants/hm~2,and the proportion of new bamboo plants was 0.32.The bamboo rhizome distribution depth in soil was 3-5 cm,and total buds (TB) was700000/hm~2 in which strong buds (SB) was 210000/hm~2.DAH,H,N,TB and SB increased with the elevation increasing,but the ratio of SB was in the opposite direction.Linear (H_1) and Power function (H_2) simulation equations of DAH (D_0)-H of new bamboo was H_1=185.62 D_0 +13.088 and H_2 =189.74 D_ (00.8848),the equations of old bamboo were H_1=237.29 D_0-28.844 and H_2=208.84 D_(01.2531),which could be applied to the prediction of DAH (D0)-H relationship.Dry weight biomass of the bamboo forest varied by 9.12-24.56 Tons/hm~2 with an average value of 14.93 Tons/hm~2,and the biomass value increased with the elevation increasing.Component dry weight biomass were ranked as stem (37.23%)> leaf (16.53%)>rhizome (14.81%)> branch (11.62%)> basket (11.16%)>root (8.65%),and overground part (65.38%)>under-ground part (34.62%).It provides a theoretical basis for the development of the bamboo forest of Chminobambusa angustifolia.

引文

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