Agricultural Drought Management Strategies to Alleviate Impacts: Examples from the Arid and Subhumid Regions of the Indian Subcontinent

1993 ◽  
pp. 65-86 ◽  
Author(s):  
A. S. R. A. S. Sastri
Keyword(s):  
Indian Subcontinent ◽  
Management Strategies ◽  
Agricultural Drought ◽  
Drought Management

How useful are CORDEX products for the assessment of future agricultural drought propensity across the Indian subcontinent?

2020 ◽  
Author(s):  
Prabal Das ◽  
Kironmala Chanda ◽  
Rajib Maity
Keyword(s):  
Soil Moisture ◽  
Water Resources ◽  
Indian Subcontinent ◽  
Regional Climate ◽  
Agricultural Drought ◽  
Historical Period ◽  
Drought Management ◽  
Future Evolution ◽  
Failure State ◽  
The Future

<p><strong>Abstract</strong></p><p>This study aims to evaluate the future evolution of agricultural drought propensity across the Indian subcontinent through Drought Management Index (DMI), a probabilistic measure based on the concept of Reliability-Resilience-Vulnerability (RRV) of soil moisture series at a location/region (Chanda et al., 2014; Chanda and Maity, 2017). In this study, monthly gridded soil moisture products from the Coordinated Regional Climate Downscaling Experiment (CORDEX) framework are used after suitable bias correction, if needed. In the realm of RRV analysis, the fall of soil moisture below a threshold (e.g., Permanent Wilting Point, PWP) is considered as the ‘failure state’. The joint distribution of resilience (the ability of the soil moisture system to recover from a failure state) and vulnerability (severity of the deficit in soil moisture during a failure state) of soil moisture series is modelled through copulas (Nelsen, 2006; Maity, 2018) to develop the DMI.  The results of this study help to assess the evolution of agricultural drought propensity, in terms of DMI, in the near (2011-2040), intermediate (2041-2070) and far future (2071-2099). The findings from multiple emission pathways, designated as Representative Concentration Pathways (RCPs), are compared against each other during the future period and also against the historical period. As an outcome of the study, specific regions across the Indian mainland are identified that need immediate attention for managing sustainable agricultural and allied activities in future.</p><p><strong>Keywords: </strong>Drought Management Index (DMI), soil moisture, future drought propensity, Reliability-Resilience-Vulnerability (RRV), CORDEX</p><p><strong> </strong></p><p><strong> </strong></p><p><strong> </strong></p><p><strong> </strong></p><p><strong>References </strong></p><p>Chanda, K., Maity, R., Sharma, A., and Mehrotra, R. (2014). Spatiotemporal variation of long-term drought propensity through reliability-resilience-vulnerability based Drought Management Index, Water Resources Research, 50(10), 7662-7676.</p><p>Chanda, K., and Maity, R. (2017). Assessment of Trend in Global Drought Propensity in the Twenty-First Century Using Drought Management Index, Water Resources Management, 31(4), 1209-1225.</p><p>Maity, R. (2018). Statistical Methods in Hydrology and Hydroclimatology. Springer.</p><p>Nelsen, R. B. (2007). An introduction to copulas. Springer Science & Business Media.</p>

scholarly journals Assessing agricultural drought management strategies in the Northern Murray–Darling Basin

2021 ◽  
Author(s):  
Isabella Aitkenhead ◽  
Yuriy Kuleshov ◽  
Andrew B. Watkins ◽  
Jessica Bhardwaj ◽  
Atifa Asghari
Keyword(s):  
Management Strategies ◽  
Agricultural Drought ◽  
Drought Management ◽  
Murray Darling Basin

scholarly journals Perceiving and managing the 2018 & 2019 droughts in Europe: is there a need for macro-governance in Europe?

2020 ◽  
Author(s):  
Veit Blauhut ◽  
Claudia Teutschbein ◽  
Mathias N. Andersen ◽  
Manuela Brunner ◽  
Carmelo Cammalleri ◽  
...  
Keyword(s):  
Management Strategies ◽  
Indicator System ◽  
Ecological Impacts ◽  
International Exchange ◽  
Drought Risk ◽  
Drought Management ◽  
Economic Sectors ◽  
Drought Vulnerability ◽  
Drought Hazard ◽  
National Differences

<p>In recent years, the adverse effects of drought have been experienced and perceived more severely and frequently all over Europe. These impacts are a result of the drought hazard and the socio-economic and ecological vulnerability. Due to the heterogeneity of Europe’s hydro-climatology and its cultural, political, social and economic diversity , the socio-economic and ecological impacts vary not only with respect to the extent, duration and severity of the drought, but also with the characteristics of affected societies, economic sectors and ecosystems. </p><p>The lack  of understanding the spatio-temporal differences in the drivers of drought risk hinders the successful mitigation of future impacts, and the design of suitable reactive and proactive drought action plans. Therefore, this study describes the European drought events of 2018 and 2019 beyond the hazard. The hypothesis to be proven is that similar hazard conditions result in different impacts due to national and sub-national differences in drought vulnerability, perception and drought-risk management. Based on research in 35 European countries, comparable national datasets on drought management and perception are established. For each of these countries, a uniform questionnaire was distributed to water management-related stakeholders at different administrative levels. A major focus of the questions was the perception and impacts of the recent droughts and current management strategies on a national and sub-national scale. The results of the questionnaires are also compared to country-scale profiles of past drought events for different drought types, i.e. meteorological, soil moisture, hydrological and vegetation drought, which were established based on information derived from the European Drought Observatory indicator system.</p><p>The results highlight a large diversity in the national perception of drought as a natural hazard and its impacts; but also a different spatial extent of 2018/2019 drought events At the same time,  existing drought management strategies are shown to increase national and sub-national resilience. The study, therefore, calls for international exchange and mutual learning to improve national and international drought governance and management.</p>

scholarly journals Challenges for the Integration of Water Resource and Drought-Risk Management in Spain

2019 ◽  
Vol 11 (2) ◽  
pp. 308 ◽  
Author(s):  
Jesús Vargas ◽  
Pilar Paneque
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
Water Resource ◽  
Water Resources Management ◽  
Management Strategies ◽  
Drought Risk ◽  
Drought Management ◽  
Intergovernmental Panel ◽  
Resources Management ◽  
Increased Risk

Droughts are risks characterized by their complexity, uncertainty, and a series of other features, which differentiate them from other natural disasters and affect the strategies designed to manage them. These characteristics highlight the close relationship between drought management and water resources management. The following hypothesis is raised in this study—unsatisfactory integration of a drought-risk and water resources management strategies, increases the vulnerability to drought. To corroborate this hypothesis, the Spanish case was analyzed, where droughts are a recurrent phenomenon, due to the Mediterranean climate. Starting from the Intergovernmental Panel on Climate Change (IPCC) framework, which has been proposed to characterize vulnerability as a function of exposure, sensitivity, and adaptive capacity, this study analyzed the vulnerability in the Spanish River Basin Districts, through—(i) the integration of the predictable effects of climate change and the increased risk of exposure in hydrologic planning; (ii) the pressure on water resources that determines the sensitivity of the systems; and (iii) the development and implementation of drought management plans as a fundamental tool, in order to adapt before these events occur. The results showed that despite important advances in the process of conceiving and managing droughts, in Spain, there are still important gaps for an adequate integration of droughts risk into the water resource strategies. Therefore, despite the improvements, drought-risk vulnerability of the systems remained high.

scholarly journals Agricultural drought : Assessment & monitoring

MAUSAM ◽  
2021 ◽  
Vol 67 (1) ◽  
pp. 131-142
Author(s):  
M. V. R. SESHA SAI ◽  
C. S. MURTHY ◽  
K. CHANDRASEKAR ◽  
A. T. JEYASEELAN ◽  
P. G. DIWAKAR ◽  
...  
Keyword(s):  
Satellite Remote Sensing ◽  
Management Strategy ◽  
Agricultural Drought ◽  
Spatial Extent ◽  
Drought Management ◽  
Extraction Techniques ◽  
Drought Assessment ◽  
Rational Decision Making ◽  
Related Information ◽  
Adverse Impacts

Drought is a creeping natural disaster with long lasting effects on ecology as well as economy. Monitoring and assessment of drought is a very critical component of the drought management strategy aimed at mitigation of its adverse impacts. Spatial extent, intensity and duration of drought related information is essentially needed for taking the choicest rational decision making in the field of agriculture. Satellite remote sensing enables deriving indicators that explain the prevalence, severity, persistence and spatial extent of the area affected by drought. New satellite missions coupled with novel information extraction techniques are opening new vistas towards monitoring and assessment of drought. Aspects related to agricultural drought are discussed in this paper.

scholarly journals System Dynamics Modeling for Supporting Drought-Oriented Management of the Jucar River System, Spain

Water ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1407
Author(s):  
Adria Rubio-Martin ◽  
Manuel Pulido-Velazquez ◽  
Hector Macian-Sorribes ◽  
Alberto Garcia-Prats
Keyword(s):  
System Dynamics ◽  
Economic Impact ◽  
Water Resource ◽  
Management Strategies ◽  
River System ◽  
Drought Management ◽  
Management Options ◽  
Early Management ◽  
Operating Rules ◽  
Resource Systems

The management of water in systems where the balance between resources and demands is already precarious can pose a challenge and it can be easily disrupted by drought episodes. Anticipated drought management has proved to be one of the main strategies to reduce their impact. Drought economic, environmental, and social impacts affect different sectors that are often interconnected. There is a need for water management models able to acknowledge the complex interactions between multiple sectors, activities, and variables to study the response of water resource systems to drought management strategies. System dynamics (SD) is a modeling methodology that facilitates the analysis of interactions and feedbacks within and between sectors. Although SD has been applied for water resource management, there is a lack of SD models able to regulate complex water resource systems on a monthly time scale and considering multiple reservoir operating rules, demands, and policies. In this paper, we present an SD model for the strategic planning of drought management in the Jucar River system, incorporating dynamic reservoir operating rules, policies, and drought management strategies triggered by a system state index. The DSS combines features from early warning and information systems, allowing for the simulation of drought strategies, evaluating their economic impact, and exploring new management options in the same environment. The results for the historical period show that drought early management can be beneficial for the performance of the system, monitoring the current state of the system, and activating drought management measures results in a substantial reduction of the economic impact of droughts.

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