干旱区生态环境知识资源中心(Arid): 乌兰布和沙漠白刺灌丛土壤水分及物理特性的研究

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	乌兰布和沙漠白刺灌丛土壤水分及物理特性的研究
其他题名	Moisture Content and Physical Properties of Soil under Brushwood of Nitaria tangutorum in the Ulanbuh Desert
	韩胜利; 叶冬梅; 秦佳琪; 田有亮; 郭连生
来源期刊	干旱区地理
ISSN	1000-6060
出版年	2005
卷号	28 期号:4 页码:506-510
中文摘要	以乌兰布和沙漠流动沙地白刺灌丛土壤为研究对象,在灌丛阴面、阳面垂直方向挖取100 cm深土壤剖面,对土壤水分及其土壤物理特性进行研究.结果表明,乌兰布和沙漠白刺灌丛阴阳面土壤水分具有季节性变化.6～9月阳面沙土含水量呈下降趋势(1.10%～0.72%),而阴面呈上升趋势(1.05%～2.90%).阳面各土层贮水量0～20 cm为1.22～4.66 mm、20～60 cm为3.90～6.37 mm、60～100 cm为5.55～7.86 mm,而阴面:0～20 cm为4.38～4.96 mm、20～60 cm为16.30～17.08 mm、60～100 cm为11.44～17.07 mm.阳面除表层外,其他各层土壤孔隙度、田间持水量、最大持水量均低于阴面,阳面各层的土壤容重除了表层其它层均高于阴面.
英文摘要	In this paper, the moisture content and physical properties of soil at north and south slopes of dimes covered by brushwood of Nitaria tangutorum in the Ulanbuh Desert are researched. The study area (40°30’N, 106°50’E), with an area of 2 km2, is located in the northeastern part of the Ulanbuh Desert, Dengkou County, Inner Mongolia Autonomous Region, where the dune-chains with height of 3~7 m are distributed, and the natural vegetation is mainly composed of xerophytes including Nitaria tangutorum, Psamncochloa mongolica, Agriophyllum squarosum, Ammopiptanthus mongolica, Artemisia ordsica, etc. The dunes covered by brushwood of Nitaria tangutorum are 2.5~3.5 tn high. In the study area it belongs to the temperate desert climate, it is cold in winter but hot in summer, droughts and strong winds occur frequently, the annual temperature and monthly temperatures in July and January are 7.6 °C, 23,8 °C and -10.8 °C respectively; the annual sunshine duration is over 3 000 hours; the annual average and maximum wind speeds are 3.7 m/s and 15 m/s respectively, and the direction of prevailing wind is SW; the annual precipitation and evaporation are 142.7 mm and 2 351.9 mm, the annual average relative humidity is 47%, the annual frost-free period is 168 days, and the aridity index is >4. The study results show that there is a seasonal change in soil moisture content at north and south slopes of the dunes covered by brushwood of Nitaria tangutorum in the Ulanbuh Desert, during the period from June to September, the soil moisture content at the south slope is reduced and varies in a range of 1.10%~0.72% but that at north slope is increased and varies in a range of 1.05%~2.90%. At south slope, the soil water storages in soil layers of 0~20 cm, 20~60 cm and 60~100 cm vary in ranges of 1.22mm~4.66 mm, 3.90mm~6.37 mm and 5.55mm~ 7.86 mm respectively; at north slope, they vary in ranges of 4.38mm~4.96 mm, 16.30mm ~ 17.08 mm and 11.44mm~ 17.07 mm respectively. The values of porosity, moisture capacity and maximum moisture capacity of the soil layers at south slope of dunes covered by brushwood of’Nitaria tangutorum are all lower than that at north slope except that in topsoil, whereas the unit weight of soil layers is higher than that at north slope except that of topsoil.
中文关键词	乌兰布和沙漠 ; 白刺灌丛 ; 土壤水分
英文关键词	the Ulanbuh Desert brushwood of Nitaria tangutorum soil moisture content
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:2013123
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/2XILL650/206166
作者单位	内蒙古农业大学林学院, 呼和浩特, 内蒙古 010019, 中国
推荐引用方式 GB/T 7714	韩胜利,叶冬梅,秦佳琪,等. 乌兰布和沙漠白刺灌丛土壤水分及物理特性的研究[J]. 内蒙古农业大学,2005,28(4):506-510.
APA	韩胜利,叶冬梅,秦佳琪,田有亮,&郭连生.(2005).乌兰布和沙漠白刺灌丛土壤水分及物理特性的研究.干旱区地理,28(4),506-510.
MLA	韩胜利,et al."乌兰布和沙漠白刺灌丛土壤水分及物理特性的研究".干旱区地理 28.4(2005):506-510.