globalchange  > 气候减缓与适应
DOI: 10.1016/j.agwat.2018.09.011
WOS记录号: WOS:000448095900017
论文题名:
Improving nitrogen and water use efficiency in a wheat-maize rotation system in the North China Plain using optimized farming practices
作者: Xiao, Guangmin1; Zhao, Zichao1,2; Liang, Long1; Meng, Fanqiao1; Wu, Wenliang1; Guo, Yanbin1
通讯作者: Guo, Yanbin
刊名: AGRICULTURAL WATER MANAGEMENT
ISSN: 0378-3774
EISSN: 1873-2283
出版年: 2019
卷: 212, 页码:172-180
语种: 英语
英文关键词: Nutrient utilization rate ; Water utilization rate ; Greenhouse gas emissions ; Water footprint
WOS关键词: GREENHOUSE-GAS EMISSIONS ; LONG-TERM FERTILIZATION ; DOUBLE CROPPING SYSTEM ; OXIDE EMISSIONS ; N2O EMISSIONS ; WINTER-WHEAT ; AGRICULTURAL PRODUCTS ; MANAGEMENT-PRACTICES ; CARBON FOOTPRINT ; GRAIN PRODUCTION
WOS学科分类: Agronomy ; Water Resources
WOS研究方向: Agriculture ; Water Resources
英文摘要:

Excessive nitrogen (N) application and shortage of water are the major obstacles to sustainable agricultural development in the high-yielding regions of the North China Plain. New cropping systems need to be created that use integrated management practices to improve the utilization of nitrogen and water and to reduce the emissions of greenhouse gases. We conducted a 4-year (2011-2015) field experiment in Huantai county using three cropping treatments: local farmers' conventional practices (FP), recommended fanning management (REC), and no N fertilization (CK). The study revealed that, the mean annual grain yield of FP and REC was both 16.5 Mg ha(-1) which was higher than CK (7.9 Mg ha(-1)). In comparison with FP, the REC treatment showed N fertilizer and groundwater input reduced by 43% and 28% with increasing of 79.3% and 61.7% of N use efficiency (NUE) and irrigation water use efficiency (IWUE), respectively. The REC treatment demonstrated consistently lower N2O emissions (36% on average) compared with the FP treatment. The annual net global warming potentials of the REC and CK treatments were 37% and 73% lower, respectively, than that of the FP treatment. The water footprint of the REC treatment was 30% (the Water Footprint Assessment method) to 37% (the Life Cycle Assessment method) less than that of the FP treatment. These results indicate that REC is a promising and feasible treatment for ensuring environmentally friendly, and energy-efficient sustainable agriculture in the high-yielding regions of the North China Plain.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/128716
Appears in Collections:气候减缓与适应

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作者单位: 1.China Agr Univ, Beijing Key Lab Biodivers & Organ Farming, Coll Resources & Environm Sci, Beijing 100193, Peoples R China
2.Shandong Acad Agr Sci, Inst Agr Resource & Environm, Key Lab Wastes Matrix Utilizat, Minist Agr, Jinan 250100, Shandong, Peoples R China

Recommended Citation:
Xiao, Guangmin,Zhao, Zichao,Liang, Long,et al. Improving nitrogen and water use efficiency in a wheat-maize rotation system in the North China Plain using optimized farming practices[J]. AGRICULTURAL WATER MANAGEMENT,2019-01-01,212:172-180
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