ISWC OpenIR  > 水保所知识产出(1956---)
小麦/玉米套作及其相应单作群体棵间土壤蒸发规律
张春晖1,2; 吴普特1,2; 赵西宁1,2
2016
Source Publication灌溉排水学报
Volume35Issue:7Pages:16-21
Abstract

通过大田实验,对比分析河套灌区小麦/玉米套作与单作小麦、单作玉米棵间土壤蒸发的差异及其规律。结
果表明,单作小麦、小麦/玉米套作和单作玉米的棵间土壤蒸发量占总耗水量的比例分别为28.8%、38.6%和29.9%;套
作群体全生育期的棵间土壤蒸发量显著高于单作,且日均棵间土壤蒸发量为1.06 mm/d,高于单作小麦0.85 mm/d和
单作玉米0.90 mm/d。不同生育期棵间土壤蒸发的日变化规律基本一致,峰值出现在中午12:00~14:00 之间,不同种
植模式下棵间蒸发占蒸散发的比例与叶面积指数均呈良好的指数关系,同时棵间土壤蒸发与表层土壤含水率均呈
脉冲波动变化,且灌溉后波动幅度增大。

Other Abstract

Field experiment (consisting of sole wheat, sole maize and wheat/maize intercropping systems) was
conducted in 2013 to investigate soil evaporation characteristics under the different cropping systems. Results
showed that the ratios of evaporation to evapotranspiration (E/ET) under sole wheat, sole maize and wheat and
maize intercropping were 28.8%, 38.6% and 29.9%, respectively. Total E of intercropping system was significantly
higher than that of sole cropping systems, and daily E of intercropping system was 1.06 mm/d higher than 0.85
mm/d of sole wheat and 0.90 mm/d of sole maize. Diurnal variation of E in different periods were similar, and the
peak occurred between 12:00 and 14:00. There was a good relationship with exponential function between E/ET
and LAI. With different cropping patterns, E and soil surface water content presented pulse fluctuations, and the
fluctuation increased rapidly after the irrigation.

Keyword河套灌区 小麦/玉米套作 棵间土壤蒸发 土壤含水率 叶面积指数
Indexed By中文核心期刊要目总览
Language中文
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8764
Collection水保所知识产出(1956---)
Affiliation1.西北农林科技大学水土保持研究所
2.西北农林科技大学中国旱区节水农业研究院
Recommended Citation
GB/T 7714
张春晖,吴普特,赵西宁. 小麦/玉米套作及其相应单作群体棵间土壤蒸发规律[J]. 灌溉排水学报,2016,35(7):16-21.
APA 张春晖,吴普特,&赵西宁.(2016).小麦/玉米套作及其相应单作群体棵间土壤蒸发规律.灌溉排水学报,35(7),16-21.
MLA 张春晖,et al."小麦/玉米套作及其相应单作群体棵间土壤蒸发规律".灌溉排水学报 35.7(2016):16-21.
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