干旱区生态环境知识资源中心(Arid): 河西绿洲灌区主要作物需水量及作物系数试验研究

Arid

	河西绿洲灌区主要作物需水量及作物系数试验研究
其他题名	Research on Main Crops Water Requirement and Crop Coefficient in Oasis Irrigation Region
	连彩云 1; 马忠明 2; 吕晓东 1; 曹诗瑜 1
来源期刊	灌溉排水学报
ISSN	1672-3317
出版年	2012
卷号	31 期号:5 页码:136-139
中文摘要	利用Penman-Monteith公式计算了甘肃张掖绿洲主要作物各生育期参考作物蒸散量,利用农田水量平衡方程及土壤水分胁迫系数计算了作物实际蒸发蒸腾量,并计算比较了充分灌溉和非充分灌溉条件下不同生育期作物需水特征,确定了非充分灌溉条件下主要作物的作物系数。结果表明,非充分灌溉条件下,主要作物各生育期需水规律和充分灌溉具有一致变化趋势。非充分灌溉条件下,小麦、玉米、马铃薯全生育期作物系数平均值分别为0.81、0.7和0.73。在全生育期当中,随生育期的延续,主要作物叶面蒸腾比例逐渐增大,棵间蒸发逐渐减少。
英文摘要	According to the data of the field tests conducted from 2006to 2009in Hexi oasis irrigation region, reference crop evaporations of the main crops(spring wheat,maize,potato)in different stages were gained based on the equation of Penman-Monteith formula and the evapotranspiration was determined by water balance equation and soil water stress coefficient formula.From these methods,crops water requirement and crops coefficient under insufficient irrigation were determined.The results showed that:the rule of crop water requirement of the main crops in different stages was the same trend under insufficient irrigation and sufficient irrigation.The average crop coefficients of spring wheat,maize and potato were respectively 0.81,0.7,and 0.73in the whole growth period under insufficient irrigation.With the continued growth,the ratio of leaf transpiration was gradually increasing and soil evaporation was gradually decreasing. The ratios of soil evaporation to evapotranspiration of wheat,maize and potato were respectively 37%,39%,45%,and the ratios of leaf transpiration of wheat,maize and potato were respectively 63%, 61%,55%.
中文关键词	作物需水量 ; 作物系数 ; 非充分灌溉 ; 河西绿洲灌区
英文关键词	crops water requirement crop coefficient Insufficient Irrigation in Oasis Irrigation Region
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURAL ENGINEERING
WOS研究方向	Agriculture
CSCD记录号	CSCD:4674744
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/228197
作者单位	1.甘肃省农业科学院土壤肥料与节水农业研究所, 兰州, 甘肃 730070, 中国; 2.甘肃省农业科学院, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	连彩云,马忠明,吕晓东,等. 河西绿洲灌区主要作物需水量及作物系数试验研究[J],2012,31(5):136-139.
APA	连彩云,马忠明,吕晓东,&曹诗瑜.(2012).河西绿洲灌区主要作物需水量及作物系数试验研究.灌溉排水学报,31(5),136-139.
MLA	连彩云,et al."河西绿洲灌区主要作物需水量及作物系数试验研究".灌溉排水学报 31.5(2012):136-139.