Climate Change and Sustainable Irrigation Management in Bangladesh

Author(s):  
Md. Shirazul Islam ◽  
M. Harun-ur-Rashid
Agronomy ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1120 ◽  
Author(s):  
Georgios Nikolaou ◽  
Damianos Neocleous ◽  
Anastasis Christou ◽  
Evangelini Kitta ◽  
Nikolaos Katsoulas

The sustainability of irrigated agriculture is threatening due to adverse climate change, given future projections that every one in four people on Earth might be suffering from extreme water scarcity by the year 2025. Pressurized irrigation systems and appropriate irrigation schedules can increase water productivity (i.e., product yield per unit volume of water consumed by the crop) and reduce the evaporative or system loss of water as opposed to traditional surface irrigation methods. However, in water-scarce countries, irrigation management frequently becomes a complex task. Deficit irrigation and the use of non-conventional water resources (e.g., wastewater, brackish groundwater) has been adopted in many cases as part of a climate change mitigation measures to tackle the water poverty issue. Protected cultivation systems such as greenhouses or screenhouses equipped with artificial intelligence systems present another sustainable option for improving water productivity and may help to alleviate water scarcity in these countries. This article presents a comprehensive review of the literature, which deals with sustainable irrigation for open-field and protected cultivation systems under the impact of climatic change in vulnerable areas, including the Mediterranean region.


2013 ◽  
Vol 127 ◽  
pp. 97-106 ◽  
Author(s):  
Ashok Mishra ◽  
Christian Siderius ◽  
Kenny Aberson ◽  
Martine van der Ploeg ◽  
Jochen Froebrich

2019 ◽  
Vol 11 (4) ◽  
pp. 318
Author(s):  
Azadeh Bakhshi ◽  
Lucio Cecchini ◽  
Mansour Ghanian ◽  
Bahman Khosravi Pour ◽  
Fabio Maria Santucci

2020 ◽  
Vol 117 (47) ◽  
pp. 29526-29534
Author(s):  
Lorenzo Rosa ◽  
Davide Danilo Chiarelli ◽  
Matteo Sangiorgio ◽  
Areidy Aracely Beltran-Peña ◽  
Maria Cristina Rulli ◽  
...  

Climate change is expected to affect crop production worldwide, particularly in rain-fed agricultural regions. It is still unknown how irrigation water needs will change in a warmer planet and where freshwater will be locally available to expand irrigation without depleting freshwater resources. Here, we identify the rain-fed cropping systems that hold the greatest potential for investment in irrigation expansion because water will likely be available to suffice irrigation water demand. Using projections of renewable water availability and irrigation water demand under warming scenarios, we identify target regions where irrigation expansion may sustain crop production under climate change. Our results also show that global rain-fed croplands hold significant potential for sustainable irrigation expansion and that different irrigation strategies have different irrigation expansion potentials. Under a 3 °C warming, we find that a soft-path irrigation expansion with small monthly water storage and deficit irrigation has the potential to expand irrigated land by 70 million hectares and feed 300 million more people globally. We also find that a hard-path irrigation expansion with large annual water storage can sustainably expand irrigation up to 350 million hectares, while producing food for 1.4 billion more people globally. By identifying where irrigation can be expanded under a warmer climate, this work may serve as a starting point for investigating socioeconomic factors of irrigation expansion and may guide future research and resources toward those agricultural communities and water management institutions that will most need to adapt to climate change.


2020 ◽  
Author(s):  
Marina Andrijevic ◽  
Nicole van Maanen ◽  
Carl-Friedrich Schleussner ◽  
Lorenzo Rosa

<div> <div> <div> <p>The <em>global yield gap</em> is a concept to assess the difference between the actual yield and the maximum potential yield that could be achieved by applying optimal agricultural techniques such as irrigation. Climate change and socio-economic development, including population growth, call for addressing the yield gap to increase global production and to adapt to climate change as irrigation in many circumstances is a very effective adaptation measure. On the regional level, the irrigation yield gap can thus be interpreted as an indicator linked to adaptive capacity of the agricultural sector to climate change impacts. At the same time, effective deployment of irrigation is linked, among other things, to the socio-economic development including economic capabilities, but also institutional and water governance frameworks.</p> <p>Based on a detailed assessment of the irrigation yield gap, taking into account water availability constraints such as environmental flow requirements, we here establish as sustainable irrigation adaptation index for the agricultural sector. In a next step we link this sustainable irrigation index to socio-economic indicators provided by the framework of Socio- Economic Pathways (SSPs) on the national level. Doing so allows us to project the closure of the yield gap alongside the quantitative SSP narratives of socio-economic developments. We find that even under very optimistic scenarios of socio-economic development, it will take decades to close the irrigation yield gap in many developing countries, while without substantial development improvements our results suggest limited improvement in many tropical countries. Our projections present a first attempt to consistently link future irrigation expansion to socio-economic scenarios used in climate change research. We report a substantial scenario dependence of this expansion that underscores the need to incorporate socio-economic projections into projections of future agricultural impacts.</p> </div> </div> </div>


Author(s):  

This article focuses on the problems of irrigation water use in the Kur – Araz lowland of the Azerbaijan Republic. Based on the analysis of the current condition of the irrigation management, it has been proposed the ways of its improvement, taking into account the peculiarities of arid zones of the country with consideration of the ongoing global climate changes and connected with the latter the necessity of optimization of water resources use and environmental protection of the irrigated areas. Importance of climate changes’ consideration in the process of reconstruction and new construction of waterwork facilities in order to ensure the condition for the sustainable irrigation systems operation, allowing improving water use efficiency through the rational use of the available water resources and achieving of the high cropyield has been substantiated.


Water Policy ◽  
2020 ◽  
Author(s):  
Hafiz Qaisar Yasin ◽  
Jessica Breadsell ◽  
Muhammad Naveed Tahir

Abstract Climate change and water security have become the most challenging global issues of this era, especially for developing countries like Pakistan. Amid many hindrances, poor governance has been identified as one of the most pressing reasons for ineffective action to tackle multifaceted and integrative climate-water issues in Pakistan. This article, therefore, applied a systematic literature review methodology to examine the current climate-water governance archetype, including key areas, major elements, critical gaps, and potential strategy in Pakistan. This study found that key climate-water governance areas in Pakistan are: river basin and watershed management, agriculture and irrigation management, urban and domestic water issues, floods, droughts and disaster management, groundwater management, and transboundary management. Moreover, it is revealed that the major governance elements are political commitment and leadership, policy formulation and regulation, institutional capacity and coordination, stakeholder engagement, and resource management, technology, and infrastructure development. The article also discusses how Pakistan has not effectively employed most of the identified governance elements to tackle its climate-water problems, lacking mostly in political, policy, institutional, coordination, and infrastructure aspects. In conclusion, a four-dimensional governance strategy, encompassing leadership, policy, institutions, and stakeholders is proposed to improve water sector resilience and adaptation to combat climate change in Pakistan.


2012 ◽  
Vol 10 ◽  
pp. 66-72
Author(s):  
Rishi R.S. Neupane

Due to greenhouse gas effect temperature around the world will increase (0.06ºC/yr.) resulting in increased evapo-transpiration and increased need of crop irrigation pressurizing ground water resources and its judicious use. An experiment in a deep tubewell area with improved land and irrigation management undertaken in early 1980’s has shown that doubling of agricultural productivity is possible. This system can be taken as mitigative/adaptive measure of climate change.This paper involves experiences of managing tubewell irrigation schemes through improving basically these development parameters in the irrigation command area: Land improvement (land consolidation, rectangular shaping and leveling), Irrigation canal efficiency improvement,Introduction of crop water management, and Evolving Farmers Group into a Co-operative Organization- for managing land collectively. The evaluation has shown that through this intervention approach yields of paddy, wheat, maize and pulse can be doubled in the irrigated areas. This concept might be useful to modify the present policy and program vision of irrigated agriculture development in Nepal through enhancing water productivity a mitigation measure of the effects of climate change. Also, this approach is applicable to surface irrigation schemes of Terai and hills of Nepal.DOI: http://dx.doi.org/10.3126/hn.v10i0.7117 Hydro Nepal Vol.10 January 2012 66-72


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