广西黄冕林场次生常绿阔叶林生物量及净第一性生产力

摘要/Abstract

摘要： 应用相对生长法和样方收获法,测定了广西黄冕林场天然次生常绿阔叶林的地上、地下生物量及林分净第一性生产力.阔叶林总生物量为99.96 t·hm^-2,其中地上部分占69.41%,地下部分(根系)占30.59%.林分叶面积指数为6.50.全林净第一性生产力为24.65t·hm^-2·年^-1,其中地上部分占44.54%,根系占55.46%.

关键词: 常绿阔叶林, 生物量, 净第一性生产力, 细根, 叶寿命

Abstract: By the methods of sampling plot harvesting method and allometric dimension analysis,we measured the belowground and aboveground standing biomass and net primary productivity(NPP) of the secondary evergreen broadleaved forest in Huangmian Forest farm of Guangxi,southern China,with the location of 24?51'N and 109?51'E and an altitude of about 315 m.The total biomass was 99.96 t穐m^-2,aboveground and belowground biomasses accounted for 69.41% and 30.59%,respectively.The leaf area index of trees and undergrowth shrubs was 6.50,and the total annual NPP was 24.65 t穐m^-2穣r^-1 by estimate,aboveground and belowground NPP accounted for 44.54% and 55.46%,respectively.The NPP of fine roots was 11.79 t穐m^-2穣r^-1,being 86.24% of the belowground NPP.

Key words: Evergreen broadleaved forest, Biomass, Net primary productivity(NPP), Fine root, Leaf lifespan

中图分类号:

S718

张林, 罗天祥, 邓坤枚, 戴强, 黄永, 蒋正富, 陶明友, 曾开益. 广西黄冕林场次生常绿阔叶林生物量及净第一性生产力[J]. 应用生态学报, 2004, (11): 2029-2033.

ZHANG Lin, LUO Tianxiang, DENG Kunmei, DAI Qiang, HUANG Yong, JIANG Zhengfu, TAO Mingyou, ZENG Kaiyi . Biomass and net primary productivity of secondary evergreen broadleaved forest in Huangmian Forest Farm,Guangxi[J]. Chinese Journal of Applied Ecology, 2004, (11): 2029-2033.

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