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当前位置: 首页 > 文章 > 桂西喀斯特地区3种典型灌丛生物量及生产力研究 中南林业科技大学学报 2014 (9) 86-90
Position: Home > Articles > Biomass and productivity of 3 typical shrub communities in karst areas of Western Guangxi Journal of Central South University of Forestry & Technology 2014 (9) 86-90

桂西喀斯特地区3种典型灌丛生物量及生产力研究

作  者：
庞世龙;欧芷阳;莫汉宁;侯远瑞;陆国导
单  位：
都安县林业局;广西壮族自治区林业科学研究院
关键词：
灌丛;黄荆;红背山麻杆;灰毛浆果楝;生物量;生产力;桂西喀斯特地区
摘  要：
采用样方收获法研究了桂西喀斯特地区黄荆、红背山麻杆、灰毛浆果楝3种典型灌丛的生物量及生产力。结果表明:3种灌丛群落的总生物量分别为15.98、16.04和11.86 t·hm-2,其中木本层、草本层、凋落物层的生物量占群落总生物量的比例为:黄荆群落68.9%、14.1%、17.0%,红背山麻杆群落74.7%、9.3%、16.0%,灰毛浆果楝群落47.0%、28.1%、24.9%;群落地上部分生产力分别为3.64、3.02和2.75 t·hm-2a-1;对群落优势种及灌木层根、干枝、叶、果、地上部分及全株生物量进行回归分析,结果表明各组分生物量与基径(D)的平方乘以树高(H)(D2·H)间存在极显著的相关关系,相对生长方程W=a(D2·H)b较好地描述了灌丛的生长过程,可为具有相似立地条件、群落类型及结构的林分生物量估测提供依据。
译  名：
Biomass and productivity of 3 typical shrub communities in karst areas of Western Guangxi
作  者：
PANG Shi-long;OU Zhi-yang;MO Han-ning;HOU Yuan-rui;LU Guo-dao;Guangxi Academy of Forestry;Key Lab. of Central South Fast-growing Timber Cultivation;Guangxi Key Lab. of Superior Timber Trees Resource Cultivation;Forestry Bureau of Du'an County;
关键词：
shrub community;;Vitex negundo;;Alchornea trewioides;;Cipadessa baccifera;;biomass;;productivity;;karst areas of western Guangxi
摘  要：
The biomass and productivity of 3 typical shrub communities(Vitex negundo; Alchornea trewioides; Cipadessa baccifera) in karst areas of western Guangxi were investigated by quadrat harvest method. The total biomasses of the 3 shrub communities were: 15.98, 16.04 and 11.86 t·hm-2, respectively; of them, the woody, herb and litter layer respectively accounted for 68.9%, 14.1% and 17% of the total biomass for V. negundo community; 74.7%, 9.3%, 16% for A. trewioides community; and 47%, 28.1%, 24.9% for C. baccifera community. The above-ground productivities were 3.64, 3.02 and 2.75 t·hm-2a-1,respectively. A regression analysis of dominant species and shrub layer biomass components(root, stem, leaf and fruit biomasses, above-ground biomasses) showed that all the biomass components were signifi cantly correlated with the square of basal diameter multiplying by tree height(D2·H), and the equation W=a(D2·H)b could appropriately describe the growth of the shrub communities, thus providing a basis for the estimation of stand biomass for similar shrub communities in karst regions.

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