Effect of warming and nitrogen addition on evapotranspiration and water use efficiency in a wheat-soybean/fallow rotation from 2010 to 2014

Liting Liu (), Chunsheng Hu, Jørgen E. Olesen, Zhaoqiang Ju and Xiying Zhang
Additional contact information
Liting Liu: Institute of Genetic and Developmental Biology, The Chinese Academy of Sciences
Chunsheng Hu: Institute of Genetic and Developmental Biology, The Chinese Academy of Sciences
Jørgen E. Olesen: Aarhus University
Zhaoqiang Ju: Institute of Genetic and Developmental Biology, The Chinese Academy of Sciences
Xiying Zhang: Institute of Genetic and Developmental Biology, The Chinese Academy of Sciences

Climatic Change, 2016, vol. 139, issue 3, No 16, 565-578

Abstract: Abstract Evapotranspiration (ET) and water use efficiency (WUE) are critical indexes in water flux cycles of croplands, being affected by climate change. However, field studies addressing influence of experimental warming on ET and WUE in semi-arid cropland are highly deficient. A two-factor experiment, including soil temperature [ambient (C) and increased average 1.5 °C (T) at 5 cm soil depth] and nitrogen fertilizer (N) [without (N0) and with 315 kg N ha−1 input (N1)], was conducted from 2010 to 2014 in North China Plain to measure ET and WUE of wheat-soybean/fallow rotation. In the N1 treatment, warming increased ET by 3 %, 22 %, 34 % and 16 % in wheat growing seasons of 2011, 2012, 2013 and 2014, respectively, compared with ambient temperature. N addition increased ET by 9 %, 22 %, 11 % and 27 % under ambient temperature, and by 14 %, 60 %, 45 % and 50 % under warming during the four wheat growing seasons. Warming reduced WUE by 15 %–45 % under N1. N addition increased WUE by 68 % under ambient temperature during 2010 to 2012, decreased WUE by 45 % under warming during 2011 to 2013. Warming did not alter ET and WUE in the N0 treatment during whole years. Under N1 treatment, the reduction in WUE with increasing soil temperature is likely due to the increased vapour pressure deficit (VPD). The study highlights the interactions between climate warming and N addition on hydrological cycles during wheat growth, contributing the understanding of how fertilized semi-arid cropland respond to climate change.

Keywords: ET; Water use efficiency; Warming; Nitrogen fertilizer; Wheat-soybean/fallow (search for similar items in EconPapers)
Date: 2016
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://link.springer.com/10.1007/s10584-016-1825-8 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:climat:v:139:y:2016:i:3:d:10.1007_s10584-016-1825-8

Ordering information: This journal article can be ordered from
http://www.springer.com/economics/journal/10584

DOI: 10.1007/s10584-016-1825-8

Access Statistics for this article

Climatic Change is currently edited by M. Oppenheimer and G. Yohe

More articles in Climatic Change from Springer
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().