Arid
DOI10.1016/j.agwat.2018.08.017
Modeling nitrogen leaching in a spring maize system under changing climate and genotype scenarios in arid Inner Mongolia, China
He, Yong1; Liang, Hao2; Hu, Kelin2; Wang, Hongyuan3; Hou, Lingling4
通讯作者Hu, Kelin ; Hou, Lingling
来源期刊AGRICULTURAL WATER MANAGEMENT
ISSN0378-3774
EISSN1873-2283
出版年2018
卷号210页码:316-323
英文摘要

Although the impacts of climate change on crop yield and production in China have been studied, the potential impacts on nitrate leaching are less well-known. In this study, we considered how climate change and crop genotypes with different N uptake capacities could affect soil water drainage, nitrate leaching, and grain yield under currently optimized irrigation and fertilization practices in the spring maize system of northwest China. After testing the performance of the WHCNS (soil Water Heat Carbon Nitrogen Simulator) model, a total number of 420 simulations spanning representative climate projections (2036-2065), genotypes, and time spans led to three key findings. First, the projected climate changes had no significant effects on soil water drainage and thus no impact on nitrate leaching, because the latter was primarily influenced by drainage. Second, the effects of genotype changes on reducing nitrate leaching via increasing N uptake were marginal over the whole growth period, again because these had no significant effect on soil water drainage. Finally, the projected yield reduction (around 6.5%) occurred only in the hottest climate scenario (RCP8.5), in which transpiration was probably a more significant parameter leading to yield differences between climates. We conclude that, to offset the projected yield reduction due to temperature increases, improved agricultural technologies and practices will be needed to cope with decreased crop transpiration. In addition, reducing nitrate leaching through genetic improvement of N uptake should not be considered a research priority for mitigating the effects of current and projected climate scenarios.


英文关键词Spring maize Nitrogen leaching Climate change Genotype Modelling
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000445715200034
WOS关键词USE EFFICIENCIES ; DESERT OASIS ; POTATO YIELD ; HEAT-STRESS ; NORTH CHINA ; SANDY SOIL ; NITRATE ; IRRIGATION ; MANAGEMENT ; WATER
WOS类目Agronomy ; Water Resources
WOS研究方向Agriculture ; Water Resources
来源机构中国农业大学 ; 北京大学
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/207405
作者单位1.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China;
2.China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China;
3.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China;
4.Peking Univ, Sch Adv Agr Sci, Beijing 100871, Peoples R China
推荐引用方式
GB/T 7714
He, Yong,Liang, Hao,Hu, Kelin,et al. Modeling nitrogen leaching in a spring maize system under changing climate and genotype scenarios in arid Inner Mongolia, China[J]. 中国农业大学, 北京大学,2018,210:316-323.
APA He, Yong,Liang, Hao,Hu, Kelin,Wang, Hongyuan,&Hou, Lingling.(2018).Modeling nitrogen leaching in a spring maize system under changing climate and genotype scenarios in arid Inner Mongolia, China.AGRICULTURAL WATER MANAGEMENT,210,316-323.
MLA He, Yong,et al."Modeling nitrogen leaching in a spring maize system under changing climate and genotype scenarios in arid Inner Mongolia, China".AGRICULTURAL WATER MANAGEMENT 210(2018):316-323.
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, Yong]的文章
[Liang, Hao]的文章
[Hu, Kelin]的文章
百度学术
百度学术中相似的文章
[He, Yong]的文章
[Liang, Hao]的文章
[Hu, Kelin]的文章
必应学术
必应学术中相似的文章
[He, Yong]的文章
[Liang, Hao]的文章
[Hu, Kelin]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。