Arid
DOI10.3390/w9070536
HYDRUS Simulation of Sustainable Brackish Water Irrigation in a Winter Wheat-Summer Maize Rotation System in the North China Plain
He, Kangkang1,2; Yang, Yonghui1; Yang, Yanmin1; Chen, Suying1; Hu, Qiuli1,2; Liu, Xiaojing1; Gao, Feng1,2
通讯作者Yang, Yanmin
来源期刊WATER
ISSN2073-4441
出版年2017
卷号9期号:7
英文摘要

Freshwater resources in the North China Plain (NCP) are near depletion due to the unceasing overexploitation of deep groundwater, by far the most significant source of freshwater in the region. To deal with the deepening freshwater crisis, brackish water (rich but largely unused water in agriculture) is increasingly being used in irrigation in the region. However, inappropriate irrigation with brackish water could lead to soil salinization and cropland degradation. To evaluate such negative impacts, the HYDRUS-1D model was used to simulate soil salt transport and accumulation under 15 years of irrigation with brackish water. The irrigation scenarios included brackish water irrigation during the wintering and jointing stages of winter wheat and then freshwater irrigation just before the sowing of summer maize. Freshwater irrigation was done to leach out soil salts, which is particularly vital in dry years. For the littoral region of the plain, HYDRUS-ID was used to simulate the irrigated cropping system stated above for a total period of 15 years. The results showed that it was feasible to use brackish water twice in one year, provided freshwater irrigation was performed before sowing summer maize. Freshwater irrigation, in conjunction with precipitation, leached out soil salts from the 100 cm root-zone depth. The maximum salt accumulation was in the 160-220 cm soil layer, which ensured that root-zone soil was free of restrictive salinity for crop growth. Precipitation was a critical determinant of the rate and depth leaching of soil salt. Heavy rainfall (> 100 mm) caused significant leaching of soluble salts in the 0-200 cm soil profile. Salt concentration under brackish water irrigation had no significant effect on the variations in the trend of soil salt transport in the soil profile. The variations of soil salinity were mainly affected by hydrological year type, for which the buried depth of soil salt was higher in wet years than in dry years. The study suggested that 15 years of irrigation with brackish water is a reliable and feasible mode of crop production in coastal regions with a thick soil column above the water table. The scheme proposed in this study allowed the use of brackish water in irrigation without undue salinization of the crop soil layer, an intuitive way of resolving the deepening water crisis in the NCP study area and beyond.


英文关键词brackish water irrigation soil salt transport HYDRUS-1D model coastal region North China Plain
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000406681700087
WOS关键词SOIL SALT ACCUMULATION ; SALINE WATER ; HYDRAULIC PARAMETERS ; GROUNDWATER RECHARGE ; DRIP-IRRIGATION ; USE EFFICIENCY ; ARID REGIONS ; TEMPERATURE ; GROWTH ; MOVEMENT
WOS类目Water Resources
WOS研究方向Water Resources
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/202801
作者单位1.Chinese Acad Sci, Inst Genet & Dev Biol, Ctr Agr Resources Res, Key Lab Agr Water Resources,Hebei Key Lab Agr Wat, Shijiazhuang 050021, Hebei, Peoples R China;
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
He, Kangkang,Yang, Yonghui,Yang, Yanmin,et al. HYDRUS Simulation of Sustainable Brackish Water Irrigation in a Winter Wheat-Summer Maize Rotation System in the North China Plain[J],2017,9(7).
APA He, Kangkang.,Yang, Yonghui.,Yang, Yanmin.,Chen, Suying.,Hu, Qiuli.,...&Gao, Feng.(2017).HYDRUS Simulation of Sustainable Brackish Water Irrigation in a Winter Wheat-Summer Maize Rotation System in the North China Plain.WATER,9(7).
MLA He, Kangkang,et al."HYDRUS Simulation of Sustainable Brackish Water Irrigation in a Winter Wheat-Summer Maize Rotation System in the North China Plain".WATER 9.7(2017).
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[He, Kangkang]的文章
[Yang, Yonghui]的文章
[Yang, Yanmin]的文章
百度学术
百度学术中相似的文章
[He, Kangkang]的文章
[Yang, Yonghui]的文章
[Yang, Yanmin]的文章
必应学术
必应学术中相似的文章
[He, Kangkang]的文章
[Yang, Yonghui]的文章
[Yang, Yanmin]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。