Estimating the agricultural irrigation demand for planning of non-potable water reuse projects

Schwaller, Christoph; Keller, Yvonne; Drewes, Jörg E.

doi:10.1016/j.agwat.2020.106529

Cited by 11 publications

(7 citation statements)

References 32 publications

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“…Drought events, that have occurred more frequently in the last few decades, have had an increasingly large impact on water-consuming sectors in the region, such as agriculture, industry, drinking water supply and ecology. Restrictions in water availability have led to water-use conflicts in the past among these sectors [32]. The use of irrigation is expanding in the study area for cash crops, such as vine and vegetables.…”

Section: Study Sitementioning

confidence: 99%

The Role of Recent Climate Change in Explaining the Statistical Yield Increase of Maize in Northern Bavaria—A Model Study

Çetin

Mauser

2023

Agriculture

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Maize yields in many regions of the world have increased significantly since the 1960s. The increase is mainly attributed to technological improvements and climate change. On a regional scale and in recent decades, climate change has altered growth conditions of maize and this, in turn, has influenced changes in yield. In order to analyze the contribution of different factors to yield changes, and to obtain a model setup that could be used for further analyses of yield development, this study systematically investigated the effects of recent climate change, irrigation, cultivar selection and nutrient availability on historical yields in Northern Bavaria. Four sets of simulations were conducted with the mechanistic plant growth model PROMET, during the time period between 1997 and 2020, and the resulting yields were compared to county statistics. In addition, three scenarios were simulated in order to determine yield increase potentials for the highly mechanized agricultural region of Northern Bavaria. The results showed a good agreement with the observed yields (R2 = 0.76), when considering altered nutrient availability, suggesting that an increase in nutrient uptake by plants plays a key role in reproducing yield statistics and has a main contribution to the observed increasing yield trends. Moreover, other factors considered individually, such as recent climate change, irrigation and cultivar selection, could not explain the yield levels and trends shown by the statistics. The scenario simulations demonstrated potential increases in yield due to irrigation and cultivar adaptation. The yield response to irrigation shows a trend, with recent climate change progressing, of 0–25% when irrigating currently grown cultivars and 10–50% when irrigating an adapted cultivar; rainfed cultivar adaptation consistently increased the level of yields by approximately 10%. This study highlights the importance of a dynamic consideration of growth conditions in the course of climate change, rather than static assumptions of model parameters, and emphasizes the importance of the second-order effects of climate change.

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Section: Study Sitementioning

confidence: 99%

The Role of Recent Climate Change in Explaining the Statistical Yield Increase of Maize in Northern Bavaria—A Model Study

Çetin

Mauser

2023

Agriculture

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“…Scientific progression and mechanization have been advantageous as well as problematic for the human population and environment 1–3 . There are notable problems linked with potable water.…”

Section: Introductionmentioning

confidence: 99%

Deportment of cobalt bismuth nanoferrites in Kevlar‐supported cellulose acetatemembranes for heavy metal‐salts rejection profile

Afzal

Rafique

Iqbal

2022

J of Applied Polymer Sci

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The designed novel hybrid laminate membranes have been synthesized with silane surface functionalized Kevlar fabric packed between two layers of cobalt bismuth nanoferrites (CBF)-loaded cellulose acetate. Primarily, nanoreinforcement; Co-Bi nano-ferrites were synthesized using sol-gel technique and functionalization is carried out using 3-aminpropyl-tri-methoxysilane. Secondarily, thermally assisted evaporation methodology coupled with dip-coating is adopted to synthesize hybrid Kevlar laminate membranes. Finally, structural, thermal, and flux along rejection studies are done on resultant hybrid membranes. The surface morphology, porosity generation, and homogeneous distribution of nanoincorporation with various concentration are revealed from micrographs of SEM of membranes. Noteworthy, impact of nanoreinforcement has been observed to holdup thermal oxidation of synthesized unique formulations of hybrid membranes employing TGA. Presence of CBF in cellulose acetate (CA)/Kevlar laminate membranes are modified glass transition and crystallization temperatures as cleared in DSC. De-ionized water for flux and heavy metal salts rejection capabilities of each formulated membrane were tested at applied pressures 60, 120, and 180 psi. The important findings are indicated that, increasing concentration of CBF loading in CA remarkably enhanced efficacy of metal-nitrates rejection with membranes. It is attributed to sole magneto-physiochemical behavior of nanoferrites that, facilitate enhanced adsorption in designed hybrid membranes for heavy metal rejection from industrial wastes.

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“…Tubiello and Fischer (2007) found that an alleviated climate may reduce the impacts of climate change on agricultural water requirements by about 40.00%, or 125×10 8 -160×10 8 m 3 , compared with an unmitigated climate. Schwaller et al (2021) underscore the importance of effective agricultural water management through a comprehensive understanding of CWR and IWR, but this information is frequently not readily available. Therefore, it is of paramount importance to understand the variability of the climate-induced CWRs and IWRs of different crops for effectively managing the agricultural water resources and mitigate the adverse impacts of climate change on agriculture.…”

Section: Introductionmentioning

confidence: 99%

Implications of future climate change on crop and irrigation water requirements in a semi-arid river basin using CMIP6 GCMs

Karan

Singh

et al. 2022

J. Arid Land

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Agriculture faces risks due to increasing stress from climate change, particularly in semi-arid regions. Lack of understanding of crop water requirement (CWR) and irrigation water requirement (IWR) in a changing climate may result in crop failure and socioeconomic problems that can become detrimental to agriculture-based economies in emerging nations worldwide. Previous research in CWR and IWR has largely focused on large river basins and scenarios from the Coupled Model Intercomparison Project Phase 3 (CMIP3) and Coupled Model Intercomparison Project Phase 5 (CMIP5) to account for the impacts of climate change on crops. Smaller basins, however, are more susceptible to regional climate change, with more significant impacts on crops. This study estimates CWRs and IWRs for five crops (sugarcane, wheat, cotton, sorghum, and soybean) in the Pravara River Basin (area of 6537 km 2 ) of India using outputs from the most recent Coupled Model Intercomparison Project Phase 6 (CMIP6) General Circulation Models (GCMs) under Shared Socio-economic Pathway (SSP)245 and SSP585 scenarios. An increase in mean annual rainfall is projected under both scenarios in the 2050s and 2080s using ten selected CMIP6 GCMs. CWRs for all crops may decline in almost all of the CMIP6 GCMs in the 2050s and 2080s (with the exceptions of ACCESS-CM-2 and ACCESS-ESM-1.5) under SSP245 and SSP585 scenarios. The availability of increasing soil moisture in the root zone due to increasing rainfall and a decrease in the projected maximum temperature may be responsible for this decline in CWR. Similarly, except for soybean and cotton, the projected IWRs for all other three crops under SSP245 and SSP585 scenarios show a decrease or a small increase in the 2050s and 2080s in most CMIP6 GCMs. These findings are important for agricultural researchers and water resource managers to implement long-term crop planning techniques and to reduce the negative impacts of climate change and associated rainfall variability to avert crop failure and agricultural losses.

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Estimating the agricultural irrigation demand for planning of non-potable water reuse projects

Cited by 11 publications

References 32 publications

The Role of Recent Climate Change in Explaining the Statistical Yield Increase of Maize in Northern Bavaria—A Model Study

The Role of Recent Climate Change in Explaining the Statistical Yield Increase of Maize in Northern Bavaria—A Model Study

Deportment of cobalt bismuth nanoferrites in Kevlar‐supported cellulose acetatemembranes for heavy metal‐salts rejection profile

Implications of future climate change on crop and irrigation water requirements in a semi-arid river basin using CMIP6 GCMs

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