[1]蔡延江,杜子银,王小丹,等.牲畜排泄物返还对藏北高寒草原土壤CH4排放的影响[J].山地学报,2014,(04):393.
　CAI Yanjiang,DU Ziyin,WANG Xiaodan,et al.Effects of Excretal Returns on CH4 Emissions from an Alpine Steppe Soil in Northern Tibet, China[J].Mountain Research,2014,(04):393.
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牲畜排泄物返还对藏北高寒草原土壤CH4排放的影响()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2014年04期
页码:
393
栏目:
青藏高原土壤
出版日期:
2014-04-01

文章信息/Info

Title:
Effects of Excretal Returns on CH4 Emissions from an Alpine Steppe Soil in Northern Tibet, China
作者:
蔡延江; 杜子银; 王小丹; 赵 慧; 鄢 燕; 鲁旭阳
1. 中国科学院水利部成都山地灾害与环境研究所，山地表生过程与生态调控重点实验室，四川 成都 610041；
2. 中国科学院大学，北京 100049
Author(s):
CAI Yanjiang;  DU Ziyin;  WANG Xiaodan;  ZHAO Hui;  Yan Yan; LU Xuyang
1. Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China
关键词:
甲烷; 高寒草原; 牦牛粪便; 藏绵羊粪便; 温室气体
Keywords:
methane;  alpine steppe;  Yak dung;  Tibetan sheep dung;  greenhouse gas
分类号:
S153.6，X511
文献标志码:
A
摘要:
2013-07—09在申扎高寒草原与湿地生态系统观测试验站的半干旱高寒草原试验地，采用静态箱-气相色谱法对施加牦牛粪便、藏绵羊粪便和不施加粪便处理土壤的CH4排放特征进行了观测研究。结果表明，牦牛粪便斑块的CH4累积排放量为70.2 mg C/m2，显著高于藏绵羊粪便处理的-34.0 mg C/m2和对照处理的-69.0 mg C/m2 ，两者之间也有显著差异。牦牛粪便处理CH4的净排放主要是由于粪便施加后前期CH4的大量排放所致，藏绵羊粪便与对照处理之间的差异则主要归因于观测后期前者的CH4吸收量显著低于后者。牦牛粪便处理的CH4排放系数和干重排放指数分别是藏绵羊粪便处理的2.1倍和2.4倍。牦牛粪便斑块释放的绝大部分CH4主要来自于粪便本身，藏绵羊粪便斑块的较低含水量和较少有机碳施加量是致使其产甲烷潜力小于牦牛粪便斑块的主要原因。
Abstract:
To investigate the effects of yak and Tibetan sheep dung on CH4 emissions from an alpine steppe soil in Northern Tibet, China, a field experiment was conducted, to measure CH4 fluxes from simulated yak and Tibetan sheep dung patches and the Control plot using closed chamber technique and gas chromatography during an observation period from July to September in 2013, at Xainza Alpine Steppe and Wetland Ecosystem Observation Station. Cumulative CH4 emission from the yak dung treatment was 70.2 mg C/m2, significantly higher than those from the treatments of Tibetan sheep dung (-34.0 mg C/m2) and Control (-69.0 mg C/m2), and the values were also significantly different between the latter two treatments. The net release of CH4 from yak dung patch was mainly caused by the massive methane emissions from earlier stage during the observation period, and the difference in CH4 fluxes between the Control and Tibetan sheep dung treatments was probably due to the lower methane absorption by soil in the Tibetan sheep dung treatment from latter stage. CH4 emission factors and dry weightrelease index for yak dung treatment were 2.1 and 2.4 times of those for Tibetan sheep dung treatment. It is likely that most of the CH4 from yak dung patch was derived from the CH4 released from the yak dung itself, and the lower water content for Tibetan sheep dung and less organic carbon addition to the alpine steppe soil probably resulted in lower potential for CH4 production in Tibetan sheep dung treatment in comparison to yak dung treatment.

相似文献/References:

[1]曹樱子,王小丹.藏北高寒草原土壤粒径分布分形维数特征[J].山地学报,2014,(04):438.
　CAOYingzi,WANG Xiaodan.Fractal Dimension of Soil Particlesize Distribution Characteristic in the Alpine Steppe of the Northern Tibet[J].Mountain Research,2014,(04):438.
[2]鄢 燕,马星星,鲁旭阳.人为干扰对藏北高寒草原群落生物量及其碳氮磷含量特征的影响[J].山地学报,2014,(04):460.
　YAN Yan,MA Xingxing,LU Xuyang.Effect of Human Disturbance on Plant Biomass and CNP Contents of the Alpine Steppe in Northern Tibet[J].Mountain Research,2014,(04):460.

备注/Memo

备注/Memo:
收稿日期(Received date)：2013-12-27；改回日期(Accepted) : 2014-04-15。
基金项目（Foundation item）：中国科学院战略性先导科技专项（XDB03030505）、国家自然科学
基金项目（41201235、41201096）和中科院成都山地所“一三五”项目（sds-135-1203-02）资助。\[Supported by "Strategic Priority Research Program" of the Chinese Academy of Sciences (XDB03030505), National Natural Science Foundation of China (41201235, 41201096) and the 135 Strategic Program of the Institute of Mountain Hazards and Environment (sds-135-1203-02).\]
作者简介（Biography）：蔡延江（1983-），男，江苏泗阳人，博士，助理研究员，主要从事土壤碳氮循环研究。\[Cai Yanjiang, male, Ph. D, born in Siyang, Jiangsu Province, specialized in soil carbon and nitrogen cycling.\] E-mail: yanjiangcai@163.com *
通信作者(Author for correspondence)：wxd@imde.ac.cn
更新日期/Last Update: 1900-01-01