Irrigation area, efficiency and water storage mediate the drought resilience of irrigated agriculture in a semi-arid catchment

Lankford, Bruce; Pringle, Catherine M.; McCosh, Jon; Shabalala, Mlungisi; Hess, Tim; Knox, Jerry

doi:10.1016/j.scitotenv.2022.160263

Cited by 20 publications

(11 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For plateau areas, the retreat of glaciers reduced freshwater reserves. Over a long term to fight drought, modelling additional storage, improving water and land monitoring to build water accounts, and advising water management both during and between droughts deserve consideration [83].…”

Section: Implicationmentioning

confidence: 99%

Long-Term Change of Lake Water Storage and Its Response to Climate Change for Typical Lakes in Arid Xinjiang, China

Huang

Zheng

2023

Water

View full text Add to dashboard Cite

Lakes play a role as the sentinel of climate change. Surrounded by vast expanses of barren land with limited infrastructure, there is also a lack of knowledge about the dynamics of dryland lakes. The change of lake area can be effectively monitored by remote sensing, and multi-source satellite altimetry datasets provide the possibility to obtain long-term lake water level data. Using the Global Surface Water Monthly Historical dataset and altimetry water level dataset (Hydroweb), we reconstructed a time series of lake water storage changes in Xinjiang, Northwestern China, by establishing the empirical models based on the statistical relationship between the surface area and water level of each lake. We further explored lake response to climate change. The results show that the storage of water at Ayakkum Lake, Aqqikkol Lake and Aksayquin Lake have been undergoing an obvious expanding trend from 2000 to 2020, at a rate of 3.59×108m3/a, 9.43×108m3/a and 0.44×108m3/a, respectively. In the plain and transition zone, Ulungur Lake showed an upward tendency (0.413×108m3/a) in water storage, while Manas Lake and Bosten Lake experienced shrinkage with descending rates of −0.1×108m3/a and −0.86×108m3/a. Temperature changes significantly affect the lake water storage on plateaus, especially those lakes supplied with a large proportion of glacial meltwater. Precipitation is a key factor for changes of lake storage in the plain and transition zones. Meanwhile, extreme weather and man-made factors also play crucial roles. To reduce the risk of flood and drought disasters, rational regulation of water resources is required, and a large-scale integrated catchment management plan can avoid inadvertent trade-offs. This research provides a new perspective for lake water storage inversion, as well as data support for water resources management in arid areas including Xinjiang.

show abstract

Section: Implicationmentioning

confidence: 99%

Long-Term Change of Lake Water Storage and Its Response to Climate Change for Typical Lakes in Arid Xinjiang, China

Huang

Zheng

2023

Water

View full text Add to dashboard Cite

show abstract

“…Additionally, climate risk areas have been increasing in recent years [4,5]. To minimize production losses caused especially by the irregular distribution of rainfall and water scarcity, it is necessary to adopt resilience practices, for example, the use of species adapted to the local climate and soil [6][7][8] and supplementary irrigation in dry periods of the year [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Growth Dynamic, Productivity, Evapotranspiration, and Water-Economic Indices of Forage Cactus under Different Irrigation Depths

Araújo Júnior,

Leite,

Morais

et al. 2024

Agronomy

View full text Add to dashboard Cite

Supplementary irrigation can be strategic for forage cactus, aiming to guarantee higher levels of productivity and economic return. Therefore, this study aimed to evaluate the growth dynamics, productivity, evapotranspiration, and water economy indices of three forage cactus clones under different water regimes. The study was carried out in the Brazilian semi-arid region during two cycles between 2020 and 2022. Clones of forage cactus Orelha de Elefante Mexicana—OEM (Opuntia stricta (Haw.) Haw.) were evaluated; IPA Sertânia—IPA and Miúda—MIU (both species Nopalea cochenillifera (L.) Salm-Dyck) were subjected to four water regimes: rainfed and three irrigation depths (4, 8 and 12 mm). Growth dynamics and evapotranspiration were evaluated throughout the cycles, and productivity and water economy indices were based on data from the harvest time. The OEM clone showed higher dry matter productivity (21.8 Mg ha−1). The MIU clone, when intended for seed sales, presented a higher economic return (USD 20,823.33). The use of irrigation brought forward the cutting time and reduced water saving rates. With this, it can be concluded that the increase in water availability in cactus increases water consumption and reduces economic-water indices but brings important productive returns.

show abstract

“…The resilience assessment of the CSI rehabilitation alternatives has been gaining importance, in order to ensure that they will be able to meet the objectives, not only in the present, but also in the medium and long term. Climate change resilience analysis is the aim of some studies, e.g., [41,42], however, despite its growing importance, the application of resilience analysis in irrigation studies is still relatively new, with only a few studies in this regard, e.g., [43,44]. Most of the scientific works published are in fact risk and vulnerability analysis and not directly resilience analysis.…”

Section: Introductionmentioning

confidence: 99%

Framework for Assessing Collective Irrigation Systems Resilience to Climate Change—The Maiorga Case Study

Esteves

Calejo²,

Rolim

et al. 2023

Agronomy

View full text Add to dashboard Cite

In order to increase water productivity at the Collective Irrigation System (CIS) level it is crucial to adapt the existing irrigation infrastructure, enhancing water intake at the source, as well as its transport and delivery efficiency. Rehabilitation may involve structural changes and thus, a large capital investment. This investment should be proportionate to the increase in climate resilience associated to different rehabilitation alternatives. A methodology framework was developed to evaluate CIS resilience to climate change considering different rehabilitation alternatives. The assessed components were: (i) crop production systems; (ii) on-farm irrigation systems; and (iii) project rehabilitation alternatives for the conveyance and distribution of the irrigation water from the source to the farmer fields. This framework was applied to the Maiorga CIS, in central Portugal, to test the methodology performance in assessing the impacts of climate change on the supply-demand balance of the proposed rehabilitation alternatives and to evaluate their climate resilience, for the representative concentration pathways, RCP4.5 and RCP8.5, and two time periods, 2041–2070 and 2071–2100. For each scenario, period, and rehabilitation alternative, irrigation requirements at the source (demand) and stream flows (supply) were computed and the supply-demand balance was performed. Projected increases in irrigation water demand varied between 5.5% for RCP4.5/2071–2100 and 35.7% for RCP8.5/2071–2100. For RCP4.5, 11% (2050) and 9% (2080) reductions in irrigation water supply were projected, while for RCP8.5 the reduction ranges between 13% (2050) and 30% (2080). The proposed framework determined that the rehabilitation alternatives considering just one type of water source, without flow regularization and with open channel distribution to the farmer’s field, have proved to be unviable due to low resilience to climate change.

show abstract

Irrigation area, efficiency and water storage mediate the drought resilience of irrigated agriculture in a semi-arid catchment

Cited by 20 publications

References 58 publications

Long-Term Change of Lake Water Storage and Its Response to Climate Change for Typical Lakes in Arid Xinjiang, China

Long-Term Change of Lake Water Storage and Its Response to Climate Change for Typical Lakes in Arid Xinjiang, China

Growth Dynamic, Productivity, Evapotranspiration, and Water-Economic Indices of Forage Cactus under Different Irrigation Depths

Framework for Assessing Collective Irrigation Systems Resilience to Climate Change—The Maiorga Case Study

Contact Info

Product

Resources

About