宝天曼自然保护区栓皮栎林生物量和净生产力研究  

Biomass and net productivity of Quercus variabilis forest in Baotianman Natural Reserve.

作　　者：刘玉萃[1] 吴明作[1] 郭宗民[1] 蒋有绪[2] 刘世荣[2] 王正用 刘保东 朱学凌 

机构地区：[1]河南农业大学 [2]中国林业科学研究院林业研究所 [3]河南宝天曼自然保护区

出　　处：《应用生态学报》1998年第6期569-574,共6页Chinese Journal of Applied Ecology

基　　金：林业部"八五"科技攻关项目

摘　　要：对河南内乡宝天曼自然保护区４５年生天然次生栓皮栎林的生物量和净生产力的研究表明，栓皮栎林生物量为１６７．６４１７ｔ·ｈｍ－２，其中乔木层为１５８．８３８２ｔ·ｈｍ－２，占总量的９４．７５％；该林净生产力为８．４８８０ｔ·ｈｍ－２·ａ－１，其中乔木层为７．９２５４ｔ·ｈｍ－２·ａ－１，生物量平均相对生长速率为０．０４１．灌木层的生物量和净生产力分别为０．０６９４和０．０４５６ｔ·ｈｍ－２·ａ－１；而草本层的分别为０．１０４１和０．０９０８ｔ·ｈｍ－２·ａ－１．凋落物现存量为８．６３ｔ·ｈｍ－２，凋落物量为５．０３９５ｔ·ｈｍ－２·ａ－１，分别占总量的５．１５％及５９．３７％．净生产量与叶面积指数、叶量成正比关系，而与叶效率呈负相关关系．Determinations of a 45 years old natural secondary Quercus variabilis forest in Baotianman Natural Reserve in Neixiang County, He'nan Province show that its biomass was 167.6417t·hm 2 , 94.75% of which was the tree layer, and its net productivity was 8.4880t·hm 2 ·yr -1 ,in which, the tree layer was 7.9254t·hm 2 ·yr 1 .The average relative growth rate of biomass was 0.041.The biomass and net productivity of shrub layer were 0.0694t·hm 2 and 0.0456t·hm 2 ·yr 1 ,respectively,while those of herb layer were 0.1041t·hm 2 and 0.0908t·hm 2 ·yr 1 ,respectively.The standing storage of litter was 8.63t·hm 2 ,and the yearly litter was 5.0395t·hm 2 ·yr 1 ,which were respectively 5.15% of total biomass and 59.37% of total net productivity.The net production had a positive correlation with leaf area index(LAI) and leaf biomass,but a negative correlation with leaf efficiency.

关 键 词：栓皮栎林 生物量 净生产力 自然保护区 

分 类 号：S792.180.1[农业科学—林木遗传育种]