干旱区生态环境知识资源中心(Arid): 绿洲农田防护林系统土壤蒸发特征研究

Arid

	绿洲农田防护林系统土壤蒸发特征研究
其他题名	Soil Moisture Evaporation Characteristics of Farm- shelter System in Oasis
	刘丽霞; 王辉; 孙栋元; 马仲武
ISSN	1003-7578
出版年	2008
卷号	22 期号:1 页码:162-166
中文摘要	以景电灌区绿洲农田防护林系统为研究对象，通过对农田防护林系统内土壤水分蒸发的测定分析，结果表明：在1H范围内，越靠近林带，土壤蒸发量越大。随着与林带距离的增加，土壤蒸发量有先减小后增大的趋势；农田防护林系统内土壤水分蒸发量在灌溉前后有先增加后减小的趋势，并且对照点土壤水分蒸发量始终高于林网内观测点，林网内土壤蒸发量与对照点相比平均减少了35．17％。说明绿洲农田防护林系统能有效减弱土壤蒸发量；相关分析表明，系统内土壤水分蒸发量受到土壤本身和气象因子的制约，其影响程度大小依次为土壤含水量〉太阳辐射〉空气相对湿度〉风速〉气温，其中土壤含水量、太阳辐射、气温、风速与土壤蒸发量成正相关，空气相对湿度与其成负相关关系。
英文摘要	The farm - shelter forest in electric irrigation the farm- shelter forest systemwas measured.The area of Jingtai plain was investigated. The soil evaporation in resuits were as follows： In the scope of 1 H, the further the distance was, the higher the soil evaporation became, Firstly farm soil evaporation decreased with the increase of distance, then increased.. Soll evaporation in the farm- shelter forest system was apparently lower than the control site, and the mean evaporation was lower by 35.17% than the control site. The results showed that the farm -shelter forest system effectively decreased soil evaporation in desert -oasis. The correlation analysis ：showed soil evaporation of system was also restricted by the soil factor and the meteorological factors. The degree Of influence was ： soil moisture 〉solar radiation 〉 atmosphere relative humidity 〉 wind speed 〉 atmosphere temperature, solar radiation , atmosphere temperature, wind speed and soil moisture presented the positive correlation with the Soil evaporation ,but atmosphere relative humidity showed the negative correlation.
中文关键词	景电灌区 ; 土壤水分蒸发 ; 新疆杨 ; 绿洲农田防护林系统
英文关键词	electric irrigated area of Jingtai plain soil evaporation populus alba L. var. pyramidlis farm - shelter forest system of desert - oasis
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:3254337
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/222363
作者单位	甘肃农业大学林学院, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	刘丽霞,王辉,孙栋元,等. 绿洲农田防护林系统土壤蒸发特征研究[J]. 甘肃农业大学,2008,22(1):162-166.
APA	刘丽霞,王辉,孙栋元,&马仲武.(2008).绿洲农田防护林系统土壤蒸发特征研究.,22(1),162-166.
MLA	刘丽霞,et al."绿洲农田防护林系统土壤蒸发特征研究".22.1(2008):162-166.