干旱区生态环境知识资源中心(Arid): 模拟降水对短花针茅荒漠草原土壤呼吸的影响

Arid

	模拟降水对短花针茅荒漠草原土壤呼吸的影响
其他题名	Effects of Simulated Precipitation on Soil Respiration of Stipa breviflora Desert Steppe
	王忠武; 宋晓辉; 王悦骅; 王占文; 闫宝龙; 韩国栋
来源期刊	中国草地学报
ISSN	1673-5021
出版年	2020
卷号	42 期号:1 页码:111-116
中文摘要	试验在内蒙古四子王旗短花针茅荒漠草原开展,旨在研究模拟降水对土壤呼吸、土壤温度和土壤湿度的影响。在长期不同放牧平台增设4个不同降水处理(减水50%、自然降水、增水50%和增水100%)。于2016年7月~10月使用土壤碳通量测试仪器(Li-8100)测量土壤呼吸速率,同时用仪器自带的温、湿度探针监测0~10cm土壤温度和0~5cm土壤体积含水量。结果表明:随着降水量的增加,土壤呼吸和土壤湿度呈现显著增加趋势,土壤温度显著降低(P<0.05);7月~10月土壤呼吸速率呈现下降趋势;土壤呼吸与0~10cm土壤温度和0~5cm体积含水量之间存在极显著正相关关系,决定系数分别是0.3117和0.7307(P<0.0001)。结果表明,水分是影响荒漠草原土壤呼吸的关键因子之一。
英文摘要	In order to evaluate the effect of simulated precipitation on soil respiration,soil temperature and soil moisture,the experiment was conducted in Stipa breviflora desert steppe in Siziwang banner,Inner Mongolia.Four precipitation treatments (50% reduced precipitation,natural precipitation,50% and 100% increased precipitation) were set up in long-term different stocking rate grazing plot.The results showed that soil respiration and soil moisture exhibited a significantly increased trend,whereas soil temperature decreased significantly (P<0.05) with the increase of precipitation.The soil respiration revealed a downward trend during the growing season (July to October).There was a significantly positive correlation between soil respiration and 0~10 cm soil temperature and 0~5 cm volumetric water content,in which the decision coefficients were 0.3117 and 0.7307,respectively (P<0.0001).Above results indicated water was one of the key factors determining the soil respiration of desert steppe.
中文关键词	土壤呼吸 ; 荒漠草原 ; 载畜率 ; 模拟降水
英文关键词	Soil respiration Desert steppe Stocking rate Simulated precipitation
语种	中文
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6667897
来源机构	内蒙古农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315810
作者单位	内蒙古农业大学草原与资源环境学院, 呼和浩特, 内蒙古 010010, 中国
推荐引用方式 GB/T 7714	王忠武,宋晓辉,王悦骅,等. 模拟降水对短花针茅荒漠草原土壤呼吸的影响[J]. 内蒙古农业大学,2020,42(1):111-116.
APA	王忠武,宋晓辉,王悦骅,王占文,闫宝龙,&韩国栋.(2020).模拟降水对短花针茅荒漠草原土壤呼吸的影响.中国草地学报,42(1),111-116.
MLA	王忠武,et al."模拟降水对短花针茅荒漠草原土壤呼吸的影响".中国草地学报 42.1(2020):111-116.