Greenhouse gas emission of pastoralism is lower than combined extensive/intensive livestock husbandry: A case study on the Qinghai-Tibet Plateau of China
Greenhouse gas emission of pastoralism is lower than combined extensive/intensive livestock husbandry: A case study on the Qinghai-Tibet Plateau of China
复制标题
畜牧业温室气体排放低于粗放/集约化畜牧业综合排放：以中国青藏高原为例
DOI：
10.1016/j.jclepro.2017.01.126
复制
发表时间：
2017-03
影响因子：
11.1
通讯作者：
Li W.J.
中科院分区：
文献类型：
--
作者：
Zhuang M.H.;Gongbuzeren;Li W.J.
随着人们对畜产品需求的增加、畜牧业生产效率的提高以及草地生态系统的恢复，畜牧业生产系统正迅速由传统的畜牧业生产系统向集约化生产系统转变。这种转变导致了温室气体排放的变化，但很少有人研究，特别是在中国的牧区。针对这一问题，在青藏高原选取查乃海村为畜牧业系统，贵南草原开发有限公司为粗放与集约相结合的畜牧业系统，采用生命周期评价方法对两种系统的温室气体排放进行比较。结果表明，粗放/集约结合畜牧业单位面积和单位胴体重的温室气体排放强度均高于放牧，表明向粗放/集约结合畜牧业系统的转变增加了温室气体排放。这种结果可能是由于较低的土壤碳吸收和较高的温室气体排放来自外部投入，如种子，柴油，和电力在结合粗放/集约系统。这些研究结果表明，在全球温室气体减排的背景下，青藏高原牧区正在进行的转型可能是不合适的。因此，减少畜禽粪便的焚烧和增加土壤碳的吸收是降低畜牧业温室气体排放强度的有效措施。
The increasing demand of livestock products and production efficiency of livestock husbandry, and restoration of grassland ecosystem have been inducing the rapid transition of livestock husbandry systems from pastoralism into intensive systems. Such transition has been resulted in changes in the greenhouse gas (GHG) emissions, though it is rarely studied, especially in the pastoral area of China. Aimed to address this question, on the Qinghai-Tibet Plateau we selected Chanaihai village as the pastoralism system, and Guinan Grassland Development Limited Company as the combination of extensive and intensive livestock husbandry system, to compare the GHG emission between the two systems using life cycle assessment method. Our results showed that the GHG emission intensity both in per unit of area and per unit of carcass weight in the combined extensive/intensive livestock husbandry were higher than the pastoralism, indicating that the shift into the combined extensive/intensive livestock husbandry system increased the GHG emission. Such results could be attributed to the lower soil carbon uptake and higher GHG emission derived from the external inputs such as seed, diesel, and electricity in the combined extensive/intensive system. These findings demonstrated that the ongoing transition in the pastoral area of Qinghai-Tibet Plateau may be inappropriate under the background of global GHG mitigation. As suggestions, we argued that reduction in the manure combustion and increase in soil carbon uptake could be effective measures to reduce the GHG emission intensity of livestock husbandry.
登录
查看更多内容
DOI：
10.1098/rstb.2010.0134
发表时间：
2010-09-27
期刊：
Philosophical transactions of the Royal Society of London. Series B, Biological sciences
影响因子：
--
作者：
Thornton PK
通讯作者：
Thornton PK
影响因子：
11.1
作者：
K. Robèrt
通讯作者：
K. Robèrt
影响因子：
8.9
作者：
Lingfei Yu;Hao Wang;Guangshuai Wang;Weimin Song;Yao Huang;Sheng Li;N. Liang;Yanhong Tang;Jinsheng He
通讯作者：
Lingfei Yu;Hao Wang;Guangshuai Wang;Weimin Song;Yao Huang;Sheng Li;N. Liang;Yanhong Tang;Jinsheng He
影响因子：
6.6
作者：
Henderson, Benjamin B.;Gerber, Pierre J.;Conant, Richard T.
通讯作者：
Conant, Richard T.
影响因子：
13.2
作者：
Adrian Huerta;L. Güereca;M. S. R. Lozano
通讯作者：
Adrian Huerta;L. Güereca;M. S. R. Lozano