Influence of groundwater on plant water use and productivity: Development of an integrated ecosystem – Variably saturated soil water flow model

Soylu, Mehmet Evren; Kucharik, Christopher J.; Loheide, Steven P.

doi:10.1016/j.agrformet.2014.01.019

Cited by 87 publications

(82 citation statements)

References 60 publications

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“…The plants were divided into 3 species groups. There were 7 species in group I (species 1, 2, 11, 15, 18, 22, and 24), 6 species in group II (5, 9, 20, 23, 27, and 31), and 19 species in group III (3,4,6,7,8,10,12,13,14,16,17,19,21,25,26,28,29,30, and 32). The occurrence frequency of most species in group III was low.…”

Section: Classification Of Sample Plots and Speciesmentioning

confidence: 99%

Relationships between Plant Communities and Environmental Factors in an Extremely Arid Area: A Case Study in China

Wang¹,

Ling²,

Xu³

et al. 2018

Pol. J. Environ. Stud.

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Section: Classification Of Sample Plots and Speciesmentioning

confidence: 99%

Relationships between Plant Communities and Environmental Factors in an Extremely Arid Area: A Case Study in China

Wang¹,

Ling²,

Xu³

et al. 2018

Pol. J. Environ. Stud.

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“…These models simulate the stocks and flows of water, carbon, energy, and nutrients between groundwater, soils, plants, aquatic ecosystems, and the atmosphere (Table 1): (1) Agro-IBIS, a dynamic model of terrestrial ecosystem processes, biogeochemistry, and water balance (Kucharik 2003, Kucharik and Twine 2007, Soylu et al 2014; (2) MODFLOW, a model of groundwater flow and its connections to the water cycle, including evapotranspiration, recharge, and discharge to streams, lakes, and wetlands (Harbaugh 2005); (3) THMB (Terrestrial Hydrology and Biogeochemistry Model), an aquatic biogeochemistry and large-scale hydrology model (Coe 2000); and (4) the Yahara Water Quality Model (Carpenter and Lathrop 2014). Grassland and other natural land covers replace low-intensity urban land and agricultural land in "Abandonment and renewal".…”

Section: Change In Ecosystem Servicesmentioning

confidence: 99%

Plausible futures of a social-ecological system: Yahara watershed, Wisconsin, USA

Carpenter¹,

Booth²,

Gillon³

et al. 2015

E&S

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ABSTRACT. Agricultural watersheds are affected by changes in climate, land use, agricultural practices, and human demand for energy, food, and water resources. In this context, we analyzed the agricultural, urbanizing Yahara watershed (size: 1345 km², population: 372,000) to assess its responses to multiple changing drivers. We measured recent trends in land use/cover and water quality of the watershed, spatial patterns of 10 ecosystem services, and spatial patterns and nestedness of governance. We developed scenarios for the future of the Yahara watershed by integrating trends and events from the global scenarios literature, perspectives of stakeholders, and models of biophysical drivers and ecosystem services. Four qualitative scenarios were created to explore plausible trajectories to the year 2070 in the watershed's social-ecological system under different regimes: no action on environmental trends, accelerated technological development, strong intervention by government, and shifting values toward sustainability. Quantitative time-series for 2010-2070 were developed for weather and land use/cover during each scenario as inputs to model changes in ecosystem services. Ultimately, our goal is to understand how changes in the social-ecological system of the Yahara watershed, including management of land and water resources, can build or impair resilience to shifting drivers, including climate.

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“…For example, Soppe and Ayars (2003) found that groundwater contributed up to 40% of daily water used by the safflower crop, and on a seasonal basis, 25% of the total crop water use originated from the groundwater, when a groundwater table was maintained at a depth of 1.5 m in weighing lysimeters. On the other hand, excessive capillary rise from groundwater can also cause a lot of problems, such as an increase in soil evaporation and the risk of soil salinization (Soylu et al, 2014). Shallow groundwater can negatively affect plant physiological functions and can even cause plant mortality (Zaidi et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

“…Shallow groundwater can negatively affect plant physiological functions and can even cause plant mortality (Zaidi et al, 2004). When the water table is persistently too close to the soil surface during the growing season, the oxygen stress on roots may increase, negatively affecting the crop growth (Soylu et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Evaluating the impact of groundwater on cotton growth and root zone water balance using Hydrus-1D coupled with a crop growth model

Han

Zhao

Šimůnek

et al. 2015

Agricultural Water Management

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a b s t r a c tGroundwater is an important factor that needs to be considered when evaluating the water balance of the soil-plant-atmosphere system and the sustainable development of arid oases. However, the impact of shallow groundwater on the root zone water balance and cotton growth is not fully understood. In this study, we have first analyzed the influence of the groundwater table depth on the seasonal maximum leaf area index of cotton, the average seasonal water stress, cotton yield, actual transpiration, actual evaporation, and capillary rise using experimental data collected at the Aksu water balance station, in Xinjiang, northwest of China and the Hydrus-1D variably-saturated soil water flow model coupled with a simplified crop growth model from SWAT. The coupled model has been first calibrated and validated using field observations of soil water content, leaf area index, cotton height, the above ground biomass, and cotton yield comparisons between measured and modeled variables have shown a reasonable agreement for all variables. Additionally, with a validated model, we have carried out numerical experiments from which we have concluded that groundwater is a major water resource for cotton growth in this region. The capillary rise from groundwater contributes almost 23% of crop transpiration when the average groundwater depth is 1.84 m, which is the most suitable groundwater depth for this experimental site. We have concluded that cotton growth and various components of the soil water balance are highly sensitive to the groundwater table level. Different positions of the groundwater table showed both positive and negative effects on cotton growth. Likewise, cotton growth has a significant impact on the capillary rise from groundwater. As a result, groundwater is a crucial factor that needs to be considered when evaluating agricultural land management in this arid region. The updated Hydrus-1D model developed in this study provides a powerful modeling tool for evaluating the effects of the groundwater table on local land management.

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Influence of groundwater on plant water use and productivity: Development of an integrated ecosystem – Variably saturated soil water flow model

Cited by 87 publications

References 60 publications

Relationships between Plant Communities and Environmental Factors in an Extremely Arid Area: A Case Study in China

Relationships between Plant Communities and Environmental Factors in an Extremely Arid Area: A Case Study in China

Plausible futures of a social-ecological system: Yahara watershed, Wisconsin, USA

Evaluating the impact of groundwater on cotton growth and root zone water balance using Hydrus-1D coupled with a crop growth model

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