scholarly journals Impacts of climate change on water resources and animal production in semi-arid regions

2015 ◽  
Vol 8 ◽  
pp. 598-609 ◽  
Author(s):  
Gherman Garcia Leal de Araújo
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
Arid Regions ◽  
Animal Production ◽  
Semi Arid ◽  
Impacts Of Climate Change

scholarly journals Os impactos das mudanças climáticas sobre os recursos hídricos e a produção animal em regiões semiáridas (Impacts of climate change on water resources and animal production in semi-arid regions)

2015 ◽  
Vol 8 ◽  
pp. 598
Author(s):  
Gherman Garcia Leal de Araújo
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
Water Supply ◽  
Animal Welfare ◽  
Production Systems ◽  
Small Ruminants ◽  
Animal Production ◽  
Risk Monitoring ◽  
Semi Arid ◽  
Impacts Of Climate Change

As zonas áridas e semiáridas em todo mundo têm expressivos rebanhos de grandes e pequenos ruminantes, que fazem parte de importantes sistemas de produção e da geração de renda das populações. As mudanças climáticas estão atingindo a pecuária destas regiões e, consequentemente, suas produções estão sendo afetadas significativamente, por problemas de baixa oferta hídrica, queda na produção e disponibilidade de forragens, bem-estar animal, causadas por alterações da temperatura, radiação solar, evapotranspiração, baixa pluviosidade e umidade do solo. Este desafio está posto e só poderá ser superado com um esforço conjunto de várias instituições, envolvendo governos, organizações e instituições de pesquisas, que possam aportar recursos, conhecimentos, ferramentas e tecnologias capazes de proporcionar a sustentabilidade ambiental e econômica da atividade pecuária. Este artigo aborda alguns aspectos relacionados aos efeitos das mudanças climáticas sobre os recursos hídricos e as consequências sobre a produção animal. Descreve algumas ferramentas de zoneamento bioclimático e de monitoramento de risco pecuário, além de trazer algumas possíveis alternativas de mitigação aos efeitos das mudanças climáticas, particularmente, relacionadas a diminuição da oferta hídrica para os sistemas de produção de ruminantes, no semiárido. Arid and semi-arid areas in the world has significant herds of large and small ruminants, which are part of major production systems and the generation of income populations. Climate change is affecting the livestock of these regions and, consequently, their productions are being significantly affected by low water supply problems, decrease in the production and availability of feed, animal welfare, caused by changes in temperature, solar radiation, evapotranspiration, low rainfall and soil moisture. This challenge is set and can only be overcome by a joint effort of various institutions, involving governments, organizations and research institutions that can provide resources, knowledge, tools and technologies that provide environmental and economic sustainability of the livestock activity. This article discusses some aspects related to the effects of climate change on water resources and the consequences on animal production. Describes some tools of zones bioclimatic and livestock risk monitoring, and bring some possible alternatives to mitigate the effects of climate change, particularly related to decreased water supply to the ruminant production systems in semi-arid. Keyworlds: water, increase temperature, animal welfare, ruminants, production system.   

Impacts of climate change on water resources in arid and semi-arid regions: Chaffar Sector, Eastern Tunisia

2013 ◽  
Vol 52 (10-12) ◽  
pp. 2082-2093 ◽  
Author(s):  
Emna Boughariou ◽  
Salem Bouri ◽  
Hafedh Khanfir ◽  
Yassine Zarhloule
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
Arid Regions ◽  
Semi Arid ◽  
Impacts Of Climate Change

Potential Impacts of Climate Change on the Inland Fisheries of Arid and Semi-Arid Regions of Africa

2019 ◽  
pp. 196-216
Author(s):  
Imefon Udo Udo ◽  
Imekan Isaac Akpan
Keyword(s):  
Climate Change ◽  
Sea Level ◽  
Arid Regions ◽  
Local Institutions ◽  
Inland Fisheries ◽  
Negative Impacts ◽  
Planned Adaptation ◽  
Semi Arid ◽  
Fish Yields ◽  
Impacts Of Climate Change

Inland fisheries of arid and semi-arid regions of Africa are seriously threatened by negative impacts of climate change. Literature and several models show increase in temperature of 1.1oC in some areas. Sea level rise is projected to increase to 0.8 m by the year 2100. Fish yields have increased almost linearly by around half a million metric tons per decade over the past 60 years, while clear cyclical variations in the residuals of about 20 years' periodicity above and below the trend line have been observed. Although fisher folks, their communities, and local institutions are already constantly adapting to various forms of change, flimsiness in the wider governance and macro-economic environment has weakened the overall adaptive capacity of these regions and fishers are vulnerable to projected climate change. For significant benefits of inland fisheries to be accomplished, planned adaptation at scales from the local to the regional is very necessary.

Potential Impacts of Climate Change on the Inland Fisheries of Arid and Semi-Arid Regions of Africa

2022 ◽  
pp. 1572-1591
Author(s):  
Imefon Udo Udo ◽  
Imekan Isaac Akpan
Keyword(s):  
Climate Change ◽  
Sea Level ◽  
Arid Regions ◽  
Local Institutions ◽  
Inland Fisheries ◽  
Negative Impacts ◽  
Planned Adaptation ◽  
Semi Arid ◽  
Fish Yields ◽  
Impacts Of Climate Change

Inland fisheries of arid and semi-arid regions of Africa are seriously threatened by negative impacts of climate change. Literature and several models show increase in temperature of 1.1oC in some areas. Sea level rise is projected to increase to 0.8 m by the year 2100. Fish yields have increased almost linearly by around half a million metric tons per decade over the past 60 years, while clear cyclical variations in the residuals of about 20 years' periodicity above and below the trend line have been observed. Although fisher folks, their communities, and local institutions are already constantly adapting to various forms of change, flimsiness in the wider governance and macro-economic environment has weakened the overall adaptive capacity of these regions and fishers are vulnerable to projected climate change. For significant benefits of inland fisheries to be accomplished, planned adaptation at scales from the local to the regional is very necessary.

scholarly journals Effects of model calibration on hydrological and water resources management simulations under climate change in a semi-arid watershed

2020 ◽  
Vol 163 (3) ◽  
pp. 1247-1266 ◽  
Author(s):  
Hagen Koch ◽  
Ana Lígia Chaves Silva ◽  
Stefan Liersch ◽  
José Roberto Gonçalves de Azevedo ◽  
Fred Fokko Hattermann
Keyword(s):  
Climate Change ◽  
Water Management ◽  
Water Resources ◽  
Water Resources Management ◽  
Model Calibration ◽  
Arid Regions ◽  
Discharge Data ◽  
Resources Management ◽  
North Eastern ◽  
Semi Arid

AbstractSemi-arid regions are known for erratic precipitation patterns with significant effects on the hydrological cycle and water resources availability. High temporal and spatial variation in precipitation causes large variability in runoff over short durations. Due to low soil water storage capacity, base flow is often missing and rivers fall dry for long periods. Because of its climatic characteristics, the semi-arid north-eastern region of Brazil is prone to droughts. To counter these, reservoirs were built to ensure water supply during dry months. This paper describes problems and solutions when calibrating and validating the eco-hydrological model SWIM for semi-arid regions on the example of the Pajeú watershed in north-eastern Brazil. The model was calibrated to river discharge data before the year 1983, with no or little effects of water management, applying a simple and an enhanced approach. Uncertainties result mainly from the meteorological data and observed river discharges. After model calibration water management was included in the simulations. Observed and simulated reservoir volumes and river discharges are compared. The calibrated and validated models were used to simulate the impacts of climate change on hydrological processes and water resources management using data of two representative concentration pathways (RCP) and five earth system models (ESM). The differences in changes in natural and managed mean discharges are negligible (< 5%) under RCP8.5 but notable (> 5%) under RCP2.6 for the ESM ensemble mean. In semi-arid catchments, the enhanced approach should be preferred, because in addition to discharge, a second variable, here evapotranspiration, is considered for model validation.

scholarly journals Vulnerability of and risk to water resources in arid and semi-arid regions of West China under a scenario of climate change

2016 ◽  
Vol 144 (3) ◽  
pp. 549-563 ◽  
Author(s):  
Jun Xia ◽  
Like Ning ◽  
Quan Wang ◽  
Junxu Chen ◽  
Long Wan ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
Arid Regions ◽  
West China ◽  
Semi Arid

scholarly journals Sensitivity of Irrigation Water Requirement to Climate Change in Arid and Semi-Arid Regions towards Sustainable Management of Water Resources

2021 ◽  
Vol 13 (24) ◽  
pp. 13608
Author(s):  
Fouad H. Saeed ◽  
Mahmoud S. Al-Khafaji ◽  
Furat A. Mahmood Al-Faraj
Keyword(s):  
Climate Change ◽  
Water Resources ◽  
Irrigation Water ◽  
Sustainable Management ◽  
Arid Regions ◽  
Water Requirement ◽  
Maximum Temperature ◽  
Irrigation Water Requirement ◽  
Irrigation Project ◽  
Semi Arid

This study aimed to assess the spatiotemporal sensitivity of the net irrigation water requirement (NIWR) to changes in climate, for sixteen crops widely cultivated in four irrigation projects located in arid and semi-arid regions of Iraq. Using LARS-WG and five GCMs, the minimum and maximum temperature and precipitation were projected for three periods from 2021–2080 with 20-year steps (P1, P2, and P3) under representative concentration pathways (RCPs) 2.6, 4.5, and 8.5. Weather data available for a reference period from 1990–2019 in four representatives’ meteorological stations were used. The climate variables and other required data were inserted into the CROPWAT 8 NIWR tool. Findings revealed that the increase in the NIWR for the considered crops due to climate change falls in the range 0.1–42.4%, 1.8–44.5%, 1.2–25.1%, and 0.7–14.7% for the North Jazeera Irrigation Project (NJIP), Kirkuk Irrigation Project (KRIP), Upper Khalis Irrigation Project (UKIP), and Dalmaj Irri-gation Project (DLIP), respectively. Barley is more susceptible to changes in climate, whereas maize, potato, soybean, and millet are found to withstand changes in climate better than others. The novel outcomes of this study support optimal spatiotemporal allocation of irrigation water requirement and the sustainable management of water resources in a changing climate in arid and semi-arid regions.

Sign in / Sign up

Export Citation Format

Share Document