干旱区生态环境知识资源中心(Arid): 黑河流域中游制种玉米农田土壤水分运移规律

Arid

	黑河流域中游制种玉米农田土壤水分运移规律
其他题名	Simulation of Seed Corn Farmland Soil Moisture Migration Regularity in the Midstream of the Heihe River Basin
	李东生; 吉喜斌; 赵丽雯
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2015
卷号	32 期号:3 页码:467-475
中文摘要	基于2009年中国科学院临泽内陆河流域研究站绿洲农田小气候、土壤蒸发和土壤水分动态监测等多源观测试验数据,运用Hydrus-1D模型模拟大田制种玉米生长条件下,土壤水分运移过程和各水分通量,并对当前灌溉制度下农田水分利用率进行评估。结合相关监测数据对模拟结果进行评价,整个模拟期作物蒸腾量、土壤蒸发量、土壤蓄水变化量和渗漏量分别为316.4、100.3、45.5 mm和339.5 mm。玉米在初生阶段、发育阶段、中期阶段、后期阶段的蒸腾水量占灌溉水分的3.6%、10.6%、46.7%和49.6%,占蒸散量的7.2%、28%、82.7%和81.4%。农田系统各水分通量的变化规律及相对比例明显受作物生长和灌水事件影响,当前灌溉制度下农田水分利用率较低,在初生阶段减少土壤蒸发和中后期阶段增加灌溉频率、减少灌溉定额是提高干旱区灌溉水分利用效率的有效手段。
英文摘要	In the arid areas of water scarcity,improving the water use efficiency is increase the productivity of unit water resource,which is an important strategic choice to increase grain production. Zhangye area,in the Midstream of the Heihe River Basin,has been the biggest corn seed production base. It is very significant to study the soil moisture migration rule in corn seed production farmland. Deep understanding oasis farmland moisture migration physical process in the midstream of Heihe River basin in Northwest China,the paper analyzes the proportion relationship between each moisture flux under the condition of irrigation system and its response to irrigation and crop growth to improve the water use efficiency and provide the basic data for agricultural water conservation practice. Using the Hydrus-1D model,we simulate the soil profile moisture migration process and all the water flux based on the supplementary experimentation data of maize field in Linze Inland River Basin Research Station and evaluate farmland water use efficiency under the current irrigation system. The assessment of simulated result show that that the evapotranspiration,evaporation,soil pondage change and leakage are 316.4 mm,100.3 mm,45.5 mm,and 339.5 mm respectively in the whole simulation period. In the initial season,developing season,midseason and late season,the water use efficiency is 3.6%,10.6%,46.7%,49.6% respectively,and is 7.2%,28%,82.7%,81.4% of evaportranspiration respectively. Each moisture flux change rule and relative proportion of farmland system was influenced significantly by the crop growth process and irrigation events,so the water use efficiency is very low under the current irrigation system. Reducing the soil evaporation in the initial season and development season,increasing irrigation frequency in the midseason and late season are effective ways to improve water use efficiency.
中文关键词	制种玉米 ; Hydrus-1D 模型 ; 绿洲农田 ; 水分运移 ; 水量平衡 ; 水分利用率 ; 黑河流域
英文关键词	corn for seed Hydrus-1D model oasis farmland moisture migration water balance water use efficiency Heihe River basin
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5433750
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232715
作者单位	中国科学院寒区旱区环境与工程研究所临泽内陆河流域研究站, 中国科学院黑河生态水文与流域科学重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	李东生,吉喜斌,赵丽雯. 黑河流域中游制种玉米农田土壤水分运移规律[J]. 中国科学院西北生态环境资源研究院,2015,32(3):467-475.
APA	李东生,吉喜斌,&赵丽雯.(2015).黑河流域中游制种玉米农田土壤水分运移规律.干旱区研究,32(3),467-475.
MLA	李东生,et al."黑河流域中游制种玉米农田土壤水分运移规律".干旱区研究 32.3(2015):467-475.