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Assessing the effects of water table depth on water use, soil salinity and wheat yield: Searching for a target depth for irrigated areas in the upper Yellow River basin

Published on Jul 1, 2013in Agricultural Water Management3.54
· DOI :10.1016/j.agwat.2013.04.004
Xu Xu12
Estimated H-index: 12
(CAU: China Agricultural University),
Guanhua Huang25
Estimated H-index: 25
(CAU: China Agricultural University)
+ 4 AuthorsYuanyuan Hao2
Estimated H-index: 2
(CAU: China Agricultural University)
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Abstract
The irrigation districts of the upper Yellow River basin face a progressive reduction of water allocation and the need to apply water-saving practices due to increasing water scarcity. The adoption of such practices will lead to lower water tables, hopefully in conjunction with controlled soil salinity levels and improved crop yields. However, excessive water saving associated with excessive increase of the water table depth may decrease capillary rise and affect crop production. In view of understanding the related processes in Qingtongxia Irrigation District, the physically based agro-hydrological model, SWAP, was adopted to explore the response of soil water and solute dynamics, and crop yield to water table changes. With this purpose, SWAP was modified through the inclusion of a simplified crop growth module, a method of variable active-nodes, and a nonlinear osmotic head-dependent function for a better description of the effects of salinity stress on root water uptake. The model was calibrated and validated using wheat's experimental data from 2007 and 2008. Simulations of soil water content, salinity concentration, biomass, and crop yield fitted well with field observations. The calibrated model was then used to predict changes in crop yield, soil water dynamics and soil salinity considering scenarios with different groundwater depths and irrigation strategies. The present irrigation strategy favors salt leaching even when considering the increase of water table depth that results in small crop yield reduction (<6%) due to salt stress. The 80% and 60% reduced irrigation strategies led to increased soil salinity and, eventually, crop yield reductions of 6–14% and 13–21%, respectively, when the depth of the water table increased. A target groundwater depth of 1.0–1.5m is suggested to be optimal for wheat's growth season with the aim of maintaining crop yields under the present conditions.
  • References (67)
  • Citations (57)
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References67
Newest
Published on Jan 1, 2013in Agricultural Water Management3.54
Nana Zhao2
Estimated H-index: 2
,
Yu Liu10
Estimated H-index: 10
+ 3 AuthorsLuis S. Pereira51
Estimated H-index: 51
(Technical University of Lisbon)
The dual crop coefficient (Kc) approach to estimate crop evapotranspiration (ETc) separately considers soil evaporation (E) and plant transpiration (T) by computing a soil evaporation coefficient (Ke) and a basal crop coefficient (Kcb), respectively, with Kc=Ke+Kcb. This approach may be more precise than the single Kc approach particularly when the crops incompletely cover the ground. The SIMDualKc model, which is adopted in this study, is an irrigation scheduling simulation model that uses a da...
Published on Dec 1, 2012in Agricultural Water Management3.54
A.K. Verma1
Estimated H-index: 1
(Sam Higginbottom Institute of Agriculture, Technology and Sciences),
S.K. Gupta5
Estimated H-index: 5
(Central Soil Salinity Research Institute),
R. K. Isaac3
Estimated H-index: 3
(Sam Higginbottom Institute of Agriculture, Technology and Sciences)
SWAP (Soil-Water-Atmosphere-Plant) version 2.0 was evaluated for its capability to simulate crop growth and salinity profiles under various combinations of fresh and saline water use for irrigation at Agra (India), located in a semiarid monsoon climatic region having a deep water table. Best available water (BAW, EC 3.6dS/m) was used for pre-sowing irrigation to wheat crop and thereafter, twelve treatment combinations were imposed with four replications to supplement missed BAW water irrigations...
Published on Aug 1, 2012in Agricultural Water Management3.54
Tiago B. Ramos9
Estimated H-index: 9
(Technical University of Lisbon),
Jiří Šimůnek29
Estimated H-index: 29
(UCR: University of California, Riverside)
+ 3 AuthorsLuis S. Pereira51
Estimated H-index: 51
(Technical University of Lisbon)
Abstract The need for reducing irrigation water demand and non-point source pollution all across Europe has made sweet sorghum [ Sorghum bicolor (L.) Moench], due to its lower water and nutrient requirements, an interesting alternative to other traditional summer crops in European Mediterranean regions. HYDRUS-2D was used to model the fate of nitrogen in a plot planted with sweet sorghum grown under Mediterranean conditions between 2007 and 2010, while considering drip irrigation scenarios with ...
Published on Jan 1, 2012in Agricultural Water Management3.54
J. D. Oster28
Estimated H-index: 28
(UCR: University of California, Riverside),
J. Letey31
Estimated H-index: 31
(UCR: University of California, Riverside)
+ 2 AuthorsManzoor Qadir37
Estimated H-index: 37
(ICARDA: International Center for Agricultural Research in the Dry Areas)
Abstract Transient-state models that account for continually changing salinity and matric stress on crop yields have been developed by several research groups. The objective of this research was to compare the simulated yields of forage corn obtained from a common set of soil and water conditions for ENVIRO-GRO, HYDRUS, SALTMED, SWAP and UNSATCHEM. The physical and hydraulic properties of Panoche clay loam were used. The amounts of water applied weekly, based on the climatic conditions in the Sa...
Published on Dec 6, 2011
Catherine M. Grieve19
Estimated H-index: 19
,
Stephen R. Grattan16
Estimated H-index: 16
,
E. V. Maas25
Estimated H-index: 25
Published on Dec 6, 2011
Wesley W. Wallender26
Estimated H-index: 26
,
Kenneth K. Tanji22
Estimated H-index: 22
This manual, "Agricultural Salinity Assessment and Management (Manual No. 71)", integrates contemporary concepts and management practices for agricultural water and salinity problems. It consists of 28 chapters, written by 49 contributing authors, and covers not only the technical and scientific aspects of the topic but also the environmental, economic, and legal aspects. Some of the subjects discussed are: the effects of salts on soil and plants; the methods of sampling, monitoring, and measuri...
Published on Sep 1, 2011in Journal of Hydrology4.41
Tiago B. Ramos9
Estimated H-index: 9
(Technical University of Lisbon),
Jiří Šimůnek29
Estimated H-index: 29
(UCR: University of California, Riverside)
+ 4 AuthorsLuis S. Pereira51
Estimated H-index: 51
(Technical University of Lisbon)
Summary Soil salinization, sodification, and non-point source pollution are among the most important and widespread environmental problems in agricultural regions with scarce water resources. Models evaluating these environmental problems should therefore consider an integrated approach to avoid favoring one problem over the other. The HYDRUS-1D software package was used to simulate water movement and solute transport in two complex experiments carried out under field conditions in Alvalade and ...
Published on Aug 1, 2011in Mathematical and Computer Modelling
Jing Jiang4
Estimated H-index: 4
(CAU: China Agricultural University),
Shaoyuan Feng18
Estimated H-index: 18
(CAU: China Agricultural University)
+ 2 AuthorsBin Jia1
Estimated H-index: 1
(CAU: China Agricultural University)
The agro-hydrological Soil-Water-Atmosphere-Plant (SWAP) model was calibrated and validated to simulate water-salt transport based on field experiments in an arid region of China. The simulation results show lower soil water content but higher salt concentration under deficit irrigation. Soil water and salinity below 95 cm at 80% evapotranspiration (ET"c) treatments and 65 cm at 60% ET"c treatments were hardly affected by irrigation. With deficit irrigation, the maximum water uptake and salt acc...
Published on Jun 1, 2011in Water Resources Management2.99
Xu Xu12
Estimated H-index: 12
(CAU: China Agricultural University),
Guanhua Huang25
Estimated H-index: 25
(CAU: China Agricultural University)
+ 1 AuthorsLuis S. Pereira51
Estimated H-index: 51
(Technical University of Lisbon)
The irrigation districts of the upper Yellow River basin are highly productive agricultural areas of North China. Due to the severe water scarcity, application of water-saving practices at both farm and district levels are required for sustainable agricultural development. An integrated methodology was developed adopting loose coupling of the groundwater flow model MODFLOW with ArcInfo Geographic Information System to assess the impacts of irrigation water-saving practices and groundwater abstra...
Published on Apr 1, 2011in Agricultural Water Management3.54
Hamideh Noory6
Estimated H-index: 6
(UT: University of Tehran),
S.E.A.T.M. van der Zee7
Estimated H-index: 7
(WUR: Wageningen University and Research Centre)
+ 2 AuthorsJ.C. van Dam17
Estimated H-index: 17
(WUR: Wageningen University and Research Centre)
The agro-hydrological model SWAP was used in a distributed manner to quantify irrigation water management effects on the water and salt balances of the Voshmgir Network of North Iran during the agricultural year 2006-2007. Field experiments, satellite images and geographical data were processed into input data for 10 uniform simulation areas. As simulated mean annual drainage water (312Â mm) of the entire area was only 14% smaller than measured (356Â mm), its distribution over the drainage units...
Cited By57
Newest
Published in Agricultural Water Management3.54
Si Mokrane Siad (UF: University of Florida), Vito Iacobellis2
Estimated H-index: 2
(Polytechnic University of Bari)
+ -3 AuthorsGerrit Hoogenboom52
Estimated H-index: 52
(UF: University of Florida)
Abstract Coupling hydrologic and crop models is becoming an increasingly important approach in the development of agro-hydrologic theme. Scientists and decision makers working to address issues in the areas of resource conservation and agricultural productivity are interested in the complementary processing of the two coupled systems. The objective of the present work is to review relevant studies related to hydrologic and crop models coupling, and to analyze the domain applicability, limitation...
Published on Jul 1, 2019in Agricultural Water Management3.54
Shuai Chen , Xiaomin Mao13
Estimated H-index: 13
+ 1 AuthorsJian Yang
Abstract Agro-eco-hydrological models are essential for managing scarce water resources and ensuring crop productivity. Here, a one-dimensional agro-eco-hydrological model, LAWSTAC, capable of simulating water and solute transport in layered soil coupled with crop growth, is presented and validated. LAWSTAC considers eight hydraulic conductivity discretization methods to address the nonlinearity of Richards equation for soil water flow. LAWSTAC includes two root water uptake models and a flexibl...
Published on Jun 1, 2019in Science of The Total Environment5.59
Magdalena Matysek (University of Sheffield), Jonathan R. Leake50
Estimated H-index: 50
(University of Sheffield)
+ 6 AuthorsDonatella Zona22
Estimated H-index: 22
(SDSU: San Diego State University)
Abstract Peatlands are globally important areas for carbon preservation; although covering only 3% of global land area, they store 30% of total soil carbon. Lowland peat soils can also be very productive for agriculture, but their cultivation requires drainage as most crops are intolerant of root-zone anoxia. This leads to the creation of oxic conditions in which organic matter becomes vulnerable to mineralisation. Given the demand for high quality agricultural land, 40% of the UK's peatlands ha...
Liu Liu1
Estimated H-index: 1
,
Zezhong Guo + 1 AuthorsRuotong Wang1
Estimated H-index: 1
As the second largest inland river basin situated in the middle of the Hexi Corridor, Northwest China, the Heihe River basin (HRB) has been facing a severe water shortage problem, which seriously restricts its green and sustainable development. The evaluation of climate change impact on water productivity inferred by crop yield and actual evapotranspiration is of significant importance for water-saving in agricultural regions. In this study, the multi-model projections of climate change under th...
Published on May 1, 2019in Agricultural Water Management3.54
Tiago B. Ramos9
Estimated H-index: 9
(IST: Instituto Superior Técnico),
Hanaa Darouich (Instituto Superior de Agronomia)+ 2 AuthorsJ. C. Martins8
Estimated H-index: 8
Abstract Deficit irrigation practices carried out in very high-density olive orchards grown in the Alentejo region of southern Portugal can bring important economic benefits in terms of water savings, yields, and oils. They can also result in serious salinization/sodification problems without proper management of soil and water resources. The main objective of this study was to evaluate the long-term (30 years) impact of those irrigation practices on local soil resources using a multicomponent t...
Published on May 1, 2019in Journal of Hydrology4.41
Lvyang Xiong (CAU: China Agricultural University), Xu Xu12
Estimated H-index: 12
(CAU: China Agricultural University)
+ 2 AuthorsGuanhua Huang25
Estimated H-index: 25
(CAU: China Agricultural University)
Abstract This article introduces the SWAT-AG (a modified SWAT for agro-hydrological modeling) as an enhanced hydrological model for simulating the hydrological processes in agricultural watershed with shallow water tables. The model is developed based on the framework of the SWAT with significant improvements on describing the interactions of the vadose zone water, groundwater, salt and plant growth. The main features of the SWAT-AG include that it can simulate the close interactions of soil wat...
Published on Apr 1, 2019in Hydrology Research
Xuguang Xing3
Estimated H-index: 3
(NWAFU: Northwest A&F University),
Xianwen Li (NWAFU: Northwest A&F University), Xiaoyi Ma2
Estimated H-index: 2
(NWAFU: Northwest A&F University)
Published on Mar 1, 2019in Agricultural Water Management3.54
Dongyang Ren4
Estimated H-index: 4
(CAU: China Agricultural University),
Xu Xu12
Estimated H-index: 12
(CAU: China Agricultural University)
+ 4 AuthorsGuanhua Huang25
Estimated H-index: 25
(CAU: China Agricultural University)
Hydrological effects caused by fragmented land cover types in human-dominated agro-ecosystems are poorly understood. In this study, based on visual interpreted high-resolution land cover map, an agro-hydrological model (HYDRUS-dualKc) was used in a distributed manner to investigate the hydrological complexities caused by fragmented land cover types and shallow groundwater. An irrigation system located in the upper Yellow River basin was chosen as a case study area, where field observations were ...
Published on Mar 1, 2019in Agricultural Water Management3.54
Shilei Chen (WHU: Wuhan University), Zailin Huo17
Estimated H-index: 17
(CAU: China Agricultural University)
+ 1 AuthorsGuanhua Huang25
Estimated H-index: 25
(CAU: China Agricultural University)
Abstract Agricultural water productivity (AWP) model is an essential tool for irrigation water management that is highly dependent on soil water processes. Soil hydrological models based on numeric solution to the Richards’ equation are time-consuming and difficult to measure, and models based on soil water balance approach are favored especially for crop water simulation because of the less parameters requirement and higher operational efficiency. In most of the soil water balance models such a...