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采伐对豫西退耕还林工程固碳的影响
王艳芳1,2; 刘 领2; 邓 蕾1; 上官周平1
2016
Source Publication生 态 学 报
Volume36Issue:5Pages:1400-1408
Abstract

以豫西退耕还林工程重点县嵩县为研究对象,收集了嵩县 2002—2010 年退耕还林工程逐年实施的造林面积、树种等数
据,利用合适的人工林蓄积量生长方程和和中国退耕还林后的土壤有机碳变化的研究结果,结合各树种的木材密度、生物量扩
展因子、碳含量等参数,在采伐和无采伐两种情景模式下对其退耕还林工程在 2002—2050 年的碳储量及其变化进行估算。结
果表明:2010 年,工程林总碳储量为 0.470 Tg (Tg=10 12 g),工程实施期间,工程前期碳储量高于后期;土壤有机碳库在 2002—
2010 年期间年固碳量均为负值,表现为碳排放,2011 年后土壤年固碳量开始增加;在两种情境模式下,工程林年固碳量最高峰
都在 2015 年,2033 年以后采伐情景的年固碳量大于无采伐情景。预计到 2020、2030、2040 和 2050 年,嵩县退耕还林工程在无
采伐情境下的固碳增汇潜力分别为 0.760、1.464、1.852 和 1.985 Tg,在采伐情景下的固碳增汇潜力分别为 0.760、1.240、1.657 和
2.000 Tg,从长时间来看,豫西退耕还林工程林在采伐情景下具有较大的碳汇潜力,因此,对退耕还林工程林实施适度的采伐可
以提高工程的碳汇能力。

Other Abstract

The Grain for Green Project (GGP),one of the most ambitious ecological projects to be launched in China,was
aimed at converting low-yield slope cropland,barren hills,and wasteland into grassland and woodland. The objective of
this study was to calculate the carbon stock changes and carbon sequestration potential of the GGP in Western Henan under
cutting and no-cutting scenarios,in order to develop a method for further estimation of the carbon sequestration potential of
the national GGP and produce a scientific reference for the ecological system management of the GGP in the long run. The
Western Henan,one of the major districts that implemented the GGP in China,initiated the GGP in 2002. We analyzed
Songxian,which is a major county in terms of implementation of the GGP in Western Henan,as a case to evaluate carbon
storage and the carbon sequestration potential under cutting and no-cutting scenarios. We collected data on each year from
2002 to 2010,such as tree species,the planted area of the project in Songxian,the use of a growth curve suitable for
China's planting volume,the findings about the soil organic carbon changes after the GGP together with biomass density of  various species,carbon content,the biomass expansion factor,and the estimated carbon storage and annual carbon
sequestration for the GGP from 2002 to 2050. The results showed that total carbon storage was 0.470 Tg in 2010,when the
project was completed. Total carbon sequestration in the former period is larger than that in the latter period during the
project's implementation. The annual carbon sequestration of the soil organic-carbon pool was negative and released carbon
from 2002 to 2010,then an increase in the annual carbon sequestration of soil organic-carbon pool was observed,along with
net carbon gains after 2011; the project' s annual carbon sequestration peaked in 2015 under no-cutting and cutting
scenarios. The annual carbon sequestration under the cutting scenario is greater than that under the no-cutting scenario after
2033. The potential increment of the carbon sink of the GGP-covered Songxian will reach 0.760,1.464,1.852,and 1.985
Tg by the year 2020,2030,2040,and 2050 under the no-cutting scenario; it will reach 0.760,1.240,1.657,and 2.000
Tg under the cutting scenario. The potential increment of the carbon sink under the cutting scenario will exceed that of the
no-cutting scenario after 2050. In the long run,the GGP in Western Henan has a greater carbon sequestration potential
under the cutting scenario than that under the no-cutting scenario. Our results suggest that moderate forest harvesting for the
GGP can increase the capacity for carbon sequestration.

Keyword退耕还林工程 碳储量 固碳潜力 采伐情景
Indexed By中文核心期刊要目总览
Language中文
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8568
Collection水保所知识产出(1956---)
Affiliation1.西北农林科技大学黄土高原土壤侵蚀与旱地农业国家重点实验室,杨陵 712100
2.河南科技大学农学院,洛阳 471003
Recommended Citation
GB/T 7714
王艳芳,刘 领,邓 蕾,等. 采伐对豫西退耕还林工程固碳的影响[J]. 生 态 学 报,2016,36(5):1400-1408.
APA 王艳芳,刘 领,邓 蕾,&上官周平.(2016).采伐对豫西退耕还林工程固碳的影响.生 态 学 报,36(5),1400-1408.
MLA 王艳芳,et al."采伐对豫西退耕还林工程固碳的影响".生 态 学 报 36.5(2016):1400-1408.
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