江西德兴地区次生常绿阔叶林生物量  

Biomass of Natural Secondary Evergreen Broad-leaved Forest in Dexing Area of Jiangxi Province

作　　者：王丽艳[1] 刘光正[1] 林小凡[1] 岳军伟[1] 杨桦[1] 

机构地区：[1]江西省林业科学院,江西南昌330013

出　　处：《西部林业科学》2015年第6期115-121,共7页Journal of West China Forestry Science

基　　金：江西省财政林业重大专项(200651010301)"常绿落叶林恢复重建技术研究与示范"

摘　　要：以江西东北地区次生常绿阔叶林为研究对象,设置标准样地35块,调查分析该区域常绿阔叶林优势种和林分生物量的特征。结果表明,(1)丝栗栲和石栎单株平均生物量为88.52 kg和132.52 kg。甜槠单株生物量在胸径<25 cm时,增长平缓;胸径25~30 cm之间增长迅速;30~35 cm之间,生长速度放缓。呈现慢—快—慢的生长过程,这一生长过程也表现在木荷上,转折点分别为胸径15 cm和20 cm阶段。(2)德兴常绿阔叶林主要是甜槠林、丝栗栲林、木荷林及石栎林,其乔木层生物量分别为120.56 t/hm^2(不含地下生物量),284.23 t/hm^2、256.59 t/hm^2和385.47 t/hm^2。(3)甜槠、丝栗栲、石栎和木荷的林分生物量分别为138.22 t/hm^2(不含乔木层根部生物量)、295.73 t/hm^2、410.46 t/hm^2和264.39 t/hm^2。To investigate and analyze the dominant tree species and biomass of the evergreen broad-leaf forest inthe northeast of Jiangxi province , 35 standard sampling plots were established. The results showed that ： （ 1 ） theaverage single plant biomass of Castanopsisfargesii is 88.52 kg, and Lithocarpus glaber is 132.52 kg. For Castan-opsis eyrei , the increase rate of single plant biomass slows down when DBH 〈 25 cm, and it increase rapidly whenDBH is between 25 - 30 cm, the increase rate slows down when DBH is between 30 -35 cm. The similar tendencyof slow-fast-slow mode also be reflected on Schima superba, and the two turning point of DBH arel5 cm and 20 cmdiameter respectively; （2） Evergreen leaved forest in Dexing area are mainly composed by Castanopsis eyrei forest,castanopsis fargesii forest, Schima superba forest and Lithocarpus glaber forest, and the biomass of tree layer are120. 56 t/hm2 （no underground biomass）, 284.23 t/hm2, 256. 59 t/hm2, and 385.47 t/hm2 respectively; （3）The forest stand biomass of Castanopsis eyrei, castanopsis fargesii, Lithocarpus glaber, Schima superba are 138.22t/hm2 （ no root biomass of trees layer）, 295.73 t/hm2,

关 键 词：常绿阔叶林 生物量 甜槠林 丝栗栲林 木荷林 石栎林 

分 类 号：S718.5[农业科学—林学]