摘要
用材积源生物量(volume-derived biomass)法对祁连山森林植被进行了研究。结果表明,11种森林植被的总生物量4.06×10~7 t,总碳储量1.90×10~7 t,总生长量1.49×10~6 t·a^(-1),年凋落量9.3×10~5 t·a^(-1),净生产量2.4×10~6 t·a^(-1),总生物量、总碳储量较大的是青海云杉林、祁连圆柏林,较小的是杨树林、华北落叶松林,山杨林、桦树林、油松林和混交林居中,主要分配在中龄林和近熟林中;平均碳密度为201.07t·hm^(-2),依次为:白桦林>针阔混交林>红桦林>油松林>山杨林>针叶混交林>杨树林>阔叶混交林>祁连圆柏林>青海云杉林>华北落叶松林;总生长量、年凋落量、净生产量较高的是青海云杉林、祁连圆柏林,较低的是油松林、华北落叶松林,在龄组中的分配依次为:中龄林>近熟林>成熟林>幼龄林>过熟林;碳交易的潜在价值为1.11×10~9美元(JI)或1.68×10~9美元(CDM),青海云杉林碳交易的潜在价值达到7.01×10~8美元(JI)或1.06×10~9美元(CDM),占总碳交易的潜在价值的62.98%。
The forest vegetation biomass, carbon storage, increment, litter amount, net production and carbon sink function were studied by volume-derived biomass method in Qilian Mountains. The results showed that the total biomass of 11 forest vegetations, total carbon storage, total growth increment, and annual lit- ter amount,and net production were 4.06×10^7 t,1.90×10^7 t,1.49×10^6 t· a-1 ,9.3×10^5 t·a-1 ,and 2.4× 10^6 t · a-1 ,respectively. Stands of the tree species with higher biomass were Picea crassifolia and Sabi- na przewalskii forests, smaller ones were Pinus tabulaeformis and Larix principis-rupprechtii forests, and the medium ones were mainly distributed in middle-aged and near-mature forests. The average carbon density was 201.07 t · hm-2 ,for individual stands,the density followed the order of Betula platyphylla〉mixed coniferous and broad-leaf〉 B. albo-sinensis 〉F. tabulae f orrnis 〉 Populus davidiana 〉 coniferous mixed〉Populus spp. 〉 mixed broad-leaf〉 Sabina przewalskii 〉 Picea crassi f olia 〉L. principis-ruppre- chtii forests. The total increment,annual litter amount and net production were higher in Populus davidi- ann and S. przewalskii forests,lower in P. tabulaeformis and L. principis-rupprechtii forests,and in the age group distribution, the order was middle-aged 〉 near-mature〉 mature 〉young 〉over-mature forests.The potential price for carbon trading was $1.11 ×10^9 （JI）or $1.68 × 10^9 （CDM）and the potential price for carbon trading of P. crassifolia forest was $ 7.01×10^8（JI）or $1.06×10^9（CDM）,62.98% of the total potential price of carbon trading.
作者
刘建泉
李进军
邸华
LIU Jian-quan LI Jin-jun DI Hua(Administration of Qilianshan National Nature Conservation in Gansu , Zhangye, Gansu 734000, China Administration of Annanba Wild Camel National Nature Conservation in Gansu , J iuquan ,Gansu 736400,China)
出处
《西北林学院学报》
CSCD
北大核心
2017年第2期1-7,42,共8页
Journal of Northwest Forestry University
基金
国家自然科学基金项目"祁连山大野口流域水源涵养功能生态水文关系分析"(41461004)
甘肃省科技支撑项目"祁连山森林植被碳源/汇及其对气候变化响应的研究"(1304FKCG053)
甘肃省基础研究创新群体项目"祁连山土壤水源涵养功能与森林分布变化响应关系"(145RJIG337)
甘肃省科技创新服务平台项目"甘肃省祁连山生态科技创新服务平台"(144JTCG254)
关键词
祁连山
材积源生物量法
碳储量
净生产量
碳汇
Qilian Mountains
volume-derived biomass method
carbon storage
net production
carbonsink
