Effects of conservation tillage on soil water regimes and water use efficiency in farmland of Heihe River Basin in Northwest China

2011 ◽  
Vol 6 (27) ◽  
Author(s):  
Zhang Fengyun
Keyword(s):  
Water Use Efficiency ◽  
Soil Water ◽  
River Basin ◽  
Water Use ◽  
Conservation Tillage ◽  
Northwest China ◽  
Heihe River Basin ◽  
Heihe River ◽  
Water Regimes ◽  
Use Efficiency

Modelling analysis of water-use efficiency of maize in Heihe River Basin

2016 ◽  
Vol 96 ◽  
pp. 50-54 ◽  
Author(s):  
Guofeng Wang ◽  
Jiancheng Chen ◽  
Qing Zhou ◽  
Xi Chu ◽  
Xiaoxue Zhou
Keyword(s):  
Water Use Efficiency ◽  
River Basin ◽  
Water Use ◽  
Heihe River Basin ◽  
Heihe River ◽  
Modelling Analysis ◽  
Use Efficiency

Comparable water use of two contrasting riparian forests in the lower Heihe River basin, Northwest China

2017 ◽  
Vol 29 (5) ◽  
pp. 1215-1224 ◽  
Author(s):  
Tengfei Yu ◽  
Qi Feng ◽  
Jianhua Si ◽  
Xiaoyou Zhang ◽  
Haiyang Xi ◽  
...  
Keyword(s):  
River Basin ◽  
Water Use ◽  
Northwest China ◽  
Riparian Forests ◽  
Heihe River Basin ◽  
Heihe River ◽  
Lower Heihe River

scholarly journals Improving Water Use Efficiency of Spring Maize by Adopting Limited Supplemental Irrigation Following Sufficient Pre-Sowing Irrigation in Northwest China

Water ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 802 ◽  
Author(s):  
Zhou ◽  
Hu ◽  
Zhou ◽  
Wang ◽  
Ran
Keyword(s):  
Water Use Efficiency ◽  
Soil Water ◽  
Water Use ◽  
Root Length Density ◽  
Northwest China ◽  
High Rate ◽  
High Yield ◽  
Supplemental Irrigation ◽  
Spring Maize ◽  
Use Efficiency

In order to improve the water use efficiency (WUE) of spring maize in northwest China, the irrigation strategy of adopting limited supplemental irrigation following a high quota pre-sowing irrigation was evaluated under field conditions in 2016 and 2018. There were three treatments (W1, W2 and W3) differing in designed wetting depth (Dh) where soil water was replenished. Dh in W1, W2 and W3 were 0–40, 0–50 and 0–60 cm, respectively. The limited supplemental irrigation was adopted to improve soil water content (SWC) within Dh to field capacity (θFC) when SWC within 0–40 cm layer decreased to 60%θFC following a high rate of pre-sowing irrigation. Results showed that the smaller Dh was beneficial for improving root length density and enhance the utilization of water in subsoil. In both seasons, different Dh led to similar grain yields, which were comparable to the typical regional yield (14.3 t ha−1). The highest WUE (2.79 kg m−3) was achieved in W1 and was 13% more than the typical regional level of 2.46 kg m−3, implying it was adequate for achieving high yield and WUE to maintain SWC in 0–40 cm above 60% θFC with not replenishing soil water in 40–100 cm during the growth season after pre-sowing irrigation.

Effects of elevated CO2 concentration on growth and water use efficiency of winter wheat under two soil water regimes

2010 ◽  
Vol 97 (11) ◽  
pp. 1742-1748 ◽  
Author(s):  
Yunzhou Qiao ◽  
Huizhen Zhang ◽  
Baodi Dong ◽  
Changhai Shi ◽  
Yuxin Li ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Water Use Efficiency ◽  
Soil Water ◽  
Elevated Co2 ◽  
Water Use ◽  
Co2 Concentration ◽  
Elevated Co2 Concentration ◽  
Water Regimes ◽  
Use Efficiency
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