广西黄冕林场次生常绿阔叶林生物量及净第一性生产力  

Biomass and net primary productivity of secondary evergreen broadleaved forest in Huangmian Forest Farm,Guangxi.

作　　者：张林[1] 罗天祥[1] 邓坤枚[1] 戴强 黄永 蒋正富 陶明友 曾开益 

机构地区：[1]中国科学院地理科学与资源研究所,北京100101 [2]广西国营黄冕林场,柳州545619 [3]广西林业勘测设计院,南宁530011

出　　处：《应用生态学报》2004年第11期2029-2033,共5页Chinese Journal of Applied Ecology

基　　金：中国科学院地理科学与资源研究所知识创新工程项目 (CX10G C0 0 0 2 ;CX10G E0 1 0 2 0 3 );中国科学院院长青年基金特别支持项目 (2 0 0 2 );美国林务局全球变化研究资助项目(USDAForestSer vice;0 0 CA 112 42 3 43 0 17)

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 96t·hm-2 ,其中地上部分占 6 9 4 1% ,地下部分 (根系 )占30 5 9% .林分叶面积指数为 6 5 0 .全林净第一性生产力为 2 4 6 5t·hm-2 ·年-1,其中地上部分占 4 4 5 4 % ,根系占 5 5 4 6 % .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·hm -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·hm -2 ·yr -1 by estimate,aboveground and belowground NPP accounted for 44.54% and 55.46%,respectively.The NPP of fine roots was 11.79 t·hm -2 ·yr -1 ,being 86.24% of the belowground NPP.

关 键 词：常绿阔叶林 生物量 净第一性生产力 细根 叶寿命 

分 类 号：S718[农业科学—林学]