干旱区生态环境知识资源中心(Arid): 极端干旱区夏季不同土地类型的小气候特征差异研究

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	极端干旱区夏季不同土地类型的小气候特征差异研究
其他题名	Research on the Micro-climate Characteristic Differences of Different Underlying Surface in the Hyper-arid Zone in Summer
	闫人华 1; 熊黑钢2 ; 张芳 1; 夏英辉 1
来源期刊	水土保持研究
ISSN	1005-3409
出版年	2013
卷号	20 期号:4 页码:149-154,159
中文摘要	通过对新疆于田县5种不同土地类型的小气候因子进行观测,探讨了不同土地类型气温、地温、相对湿度、风速、蒸发等小气候因子在特征值、逐日变化幅度、垂直变化上的差异性特征。结果表明:①沙漠、戈壁、棉花地、玉米地在气温、地温、风速、蒸发及其逐日变化幅度上依次递减,而相对湿度依次递增。②总体来看,各土地类型(下垫面)风速均随高度的增加而下降,地温则随土层深度的增加而减小,其变化幅度差异明显。除玉米地外,各下垫面越向上,气温越高,相对湿度越大。③5个下垫面的夜间蒸发量较白天迅速减少,尤以绿洲减少比例最大,达到86%。④具有过渡性质的交错带无论是因子特征值,还是垂直变化趋势、幅度均与沙漠、戈壁相似。甚至由于戈壁的海拔相对较高,交错带的特征值和变化幅度高于戈壁,而介于沙漠和棉花地之间。⑤由于自身水份与植被覆盖条件的不同,戈壁、沙漠的气温与相对湿度两因子的相关性较差,而玉米地、棉花地居中,交错带最好。
英文摘要	The eigenvalues including daily variation amplitude, and vertical variation of air temperature, ground temperature, relative humidity, wind speed, and evaporation in 5 different land types were analyzed based on the observation of micro-climate factors. The results indicated that: the air temperature, wind speed, evaporation decrease progressively in the order of desert, gobi, cotton fields, corn fields, however, relative humidity increase gradually in that order. Generally, with the increase of height, wind speed of each surface decreases, and the ground temperature declines in company with depth. Except for maize field, air temperature and relative humidity of each surface become bigger, as the height builds up. Evaporation of five surfaces at night reduces abundantly, particularly the decline proportion of oasis, which is 86%. The ecotone with the transitional nature is similar to the desert, gobi in the climate eigenvalue and its change trend, amplitude. Even because of Gobi’s relatively high altitude, the eigenvalue and changes amplitude of factors of ecotone are higher than that of gobi, lying between the desert and cotton field. For instance, the ecotone’s air temperature is higher than gobi, cotton field, and lower than desert. Owing to the differences of water and vegetation coverage, the correlation between air temperature and ground temperature of desert, gobi are poorer; the maize and cotton field are in the middle; the ecotone is the best.
中文关键词	极端干旱区 ; 小气候 ; 土地类型 ; 特征 ; 差异
英文关键词	hyper-arid zone micro-climate land type characteristic differences
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:4934832
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/230196
作者单位	1.新疆大学资源与环境科学学院, 绿洲生态教育部重点实验室, 乌鲁木齐, 新疆 830046, 中国; 2.北京联合大学应用文理学院, 绿洲生态教育部重点实验室, 北京 100083, 中国
推荐引用方式 GB/T 7714	闫人华,熊黑钢,张芳,等. 极端干旱区夏季不同土地类型的小气候特征差异研究[J]. 新疆大学,2013,20(4):149-154,159.
APA	闫人华,熊黑钢,张芳,&夏英辉.(2013).极端干旱区夏季不同土地类型的小气候特征差异研究.水土保持研究,20(4),149-154,159.
MLA	闫人华,et al."极端干旱区夏季不同土地类型的小气候特征差异研究".水土保持研究 20.4(2013):149-154,159.