干旱区生态环境知识资源中心(Arid): 塔克拉玛干沙漠腹地土壤热通量变化特征

Arid

	塔克拉玛干沙漠腹地土壤热通量变化特征
其他题名	Characteristics of Soil Heat Flux in the Hinterland of the Taklimakan Desert
	张文斌; 买买提艾力·买买提依明; 何清; 霍文; 杨兴华; 杨帆
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2016
卷号	36 期号:6 页码:1666-1671
中文摘要	利用20092011年塔克拉玛干沙漠大气环境观测试验站测得的土壤热通量数据,分析了塔克拉玛干沙漠腹地土壤热通量在不同天气条件下的变化特征。结果表明:(1)塔克拉玛干沙漠腹地1cm处土壤热通量年平均值为1.9W·m~(-2),5、20、40cm处分别为1.0、0.4、0.4W·m~(-2);1cm处土壤热通量年最大值为334.1W· m~2,年最小值为-184.2W·m~(-2);土壤热通量基本表现为夏季>春季>秋季>冬季。(2)各土层土壤热通量具有明显的日变化特征。随着土壤深度的加大,土壤热通量的日变化幅度明显减小,最大值出现的时间有一定的滞后性。土壤热通量5cm出现最大值的时间比1cm处延迟3h,延迟速率为0.75h·cm~(-1),20cm比5cm出现最大值的时间晚2 h,延迟速率约为0.13h·cm~(-1)。(3)不同天气情况下的土壤热通量日变化特征有一定的差异,晴天较为规则,阴天、雨天、沙尘天则较不规则,且1cm处土壤热通量受天气影响最显著。晴天1cm处土壤热通量平均值为9.0W ·m~(-2);阴天、雨天、沙尘天1cm处土壤热通量值平均值分别为5.1、-6.1、-1.9W·m~(-2)。
英文摘要	Based on the soil heat flux data during 2009-2011 from the Taklimakan Desert Atmosphere and Environment Observation Experiment Station,characteristics of soil heat flux of the Taklimakan Desert hinterland was analyzed.The result showed that:(1)Annual mean soil heat flux at the depth of 1 cm of the Taklimakan Desert was 1.9 W·m~2,while at the depth of 5 cm,20 cm and 40 cm were 1.0 W·m~2,0.4 W· m2,0.4 W·m~2,respectively;The annual maximum soil heat flux at the depth of 1 cm was 334.1 W·m~2, and the annual minimum soil heat flux at the depth of 1 cm was 184.2 W·m~2;The maximum value of soil heat flux was in summer.(2)The diurnal variation was obvious for soil heat flux at different levels.The daily range of soil heat flux obviously reduced with the deepness of soil depth,and there was a certain hysteresis for the time when maximum soil heat value appeared.The time at the depth of 5cm was 3 hours later than the depth of 1cm,and the time at the depth of 20 cm was 2 hours later than the depth of 5 cm.(3)The diurnal variations of soil heat flux under different weather processes have some differences with regular variation on sunny days while irregular variation on cloudy,rainy and dust days.The soil heat flux at the depth of 1 cm was significantly affected by the weather process.The mean soil heat flux at the depth of 1 cm was 9.0 W m2 on sunny day,and the mean soil heat flux at the depth of 1 cm on cloudy,rainy and dust days were 5.1 W·m~2,-6.1 W·m~2,-1.9 W·m~2,respectively.
中文关键词	塔克拉玛干沙漠 ; 土壤热通量
英文关键词	Taklimakan Desert soil heat flux
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:5910392
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/2XILL650/235465
作者单位	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	张文斌,买买提艾力·买买提依明,何清,等. 塔克拉玛干沙漠腹地土壤热通量变化特征[J]. 中国气象局乌鲁木齐沙漠气象研究所,2016,36(6):1666-1671.
APA	张文斌,买买提艾力·买买提依明,何清,霍文,杨兴华,&杨帆.(2016).塔克拉玛干沙漠腹地土壤热通量变化特征.中国沙漠,36(6),1666-1671.
MLA	张文斌,et al."塔克拉玛干沙漠腹地土壤热通量变化特征".中国沙漠 36.6(2016):1666-1671.