干旱区生态环境知识资源中心(Arid): 干旱区绿洲棉田土壤呼吸日变化特征分析

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	干旱区绿洲棉田土壤呼吸日变化特征分析
其他题名	Study on diurnal dynamic characteristic of soil respiration in oasis cotton field of arid area
	曹兴 1; 陈荣毅 2; 蔡新婷 1; 王斯萌 1; 蒋恒 1
来源期刊	干旱地区农业研究
ISSN	1000-7601
出版年	2011
卷号	29 期号:5 页码:156-162
中文摘要	利用Li-8100土壤碳通量测量系统对绿洲棉田土壤呼吸进行日变化动态测定,结果表明:土壤呼吸有明显的单峰型日变化特征,棉田(滴灌地、漫灌地)、弃耕地的土壤呼吸速率日均值分别为3.45、3.37、1.63 mumol/(m~2·s);峰值出现在15∶00~20∶00,谷值出现在4∶00~6∶00,6∶00后,土壤呼吸速率上升趋势明显。在不同天气背景下,土壤呼吸日变化格局基本一致,晴天日均值高于阴天,白昼高于夜间;白昼土壤呼吸速率变化剧烈,夜间为波动缓慢的下降过程;棉田土壤呼吸速率昼/夜均值高于弃耕地。
英文摘要	By using the LI-8100 Automated Soil CO2FluxSystem,we determined the diurnal dynamic characteristic of soil respiration in oasis cotton field. The results indicated that:The diurnal fluctuation of soil respiration is characterized by single-peaked curve, and the average rate of soil respiration of drip irrigation field, flood irrigation field and abandoned farmland is 3.45, 3.37mumol/(m~2·s) and 1.63mumol/(m~2·s) respectively. In addition, the peak value of soil respiration occurrs at 15∶00~20∶00 (Beijing time), the valley value mainly occurrs at 4∶00~6∶00, there is a increasing tendency aboutthe rate of soil respiration after6∶00.The diurnal changes of soil respiration are similar in differentweathers, and the average daily value in fine day is higher than that in cloudy day, which is also higher in day than that at night. The rate of soil respiration changes fiercely during the day and falls slowly during the night. The average values of soil respiration rate during the day and night in cotton field are higher than those in abandoned farmland.
中文关键词	干旱区 ; 绿洲棉田 ; 土壤呼吸 ; 日变化
英文关键词	arid area oasis cotton field soil respiration diurnal dynamic
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:4328482
来源机构	中国气象局乌鲁木齐沙漠气象研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/226431
作者单位	1.乌鲁木齐市气象局, 乌鲁木齐, 新疆 830002, 中国; 2.中国气象局乌鲁木齐沙漠气象研究所, 乌鲁木齐, 新疆 830002, 中国
推荐引用方式 GB/T 7714	曹兴,陈荣毅,蔡新婷,等. 干旱区绿洲棉田土壤呼吸日变化特征分析[J]. 中国气象局乌鲁木齐沙漠气象研究所,2011,29(5):156-162.
APA	曹兴,陈荣毅,蔡新婷,王斯萌,&蒋恒.(2011).干旱区绿洲棉田土壤呼吸日变化特征分析.干旱地区农业研究,29(5),156-162.
MLA	曹兴,et al."干旱区绿洲棉田土壤呼吸日变化特征分析".干旱地区农业研究 29.5(2011):156-162.