Impacts of Climate Change on Weeds, Insect Pests, Plant Diseases and Crop Yields: Synthesis

2020 ◽  
pp. 189-195
Author(s):  
Khawar Jabran ◽  
Singarayer Florentine ◽  
Bhagirath Singh Chauhan
Keyword(s):  
Climate Change ◽  
Crop Yields ◽  
Insect Pests ◽  
Plant Diseases ◽  
Impacts Of Climate Change

scholarly journals Assessing the Impacts of Climate change on Crop Yields in different Agro-Climatic Zones of India

2020 ◽  
Vol 3 (4) ◽  
Author(s):  
Naveen P Singh ◽  
Bhawna Anand ◽  
S K Srivastava ◽  
K V Rao ◽  
S K Bal ◽  
...  
Keyword(s):  
Climate Change ◽  
Crop Yields ◽  
Climate Impact ◽  
Significant Rise ◽  
Agricultural System ◽  
Adaptation Measures ◽  
Climatic Zones ◽  
Emissions Scenarios ◽  
The Impact ◽  
Impacts Of Climate Change

Thestudy attempts to estimateand predict climate impact on crop yieldsusing future temperature projections under two climate emissions scenarios of RCP 4.5 and 8.5 for threedifferent time periods (2030s, 2050s and 2080s) across Agro-climatic zones (ACZ) of India.During the period 1966-2011, a significant rise was observed in both the annual mean maximum and minimum temperature across ACZs. Rainfall recorded an annual decline in Himalayan Regions and Gangetic Plains and a rise in Coastal Regions, Plateau & Hills and Western Dry Region.Our results showedhigh heterogeneity in climate impact onkharif and rabi crop yields (with both negative and positive estimates) across ACZs.It was found that rainfall had a positive effect on most of crop yields, but was not sufficient enough to counterbalance the impact of temperature.Changes in crop yield were more pronounced forhigheremission scenario of RCP 8.5. Thus, it was evident that the relative impacts of climate change and the associated vulnerability varyby ACZs, hence comprehensive crop and region-specific adaptation measures should be emphasized that helps in enhancing resilience of agricultural system in short to medium term. 

scholarly journals Climate change impacts on pest ecology and risks to pasture resilience

2021 ◽  
Vol 17 ◽  
Author(s):  
Sarah Mansfield ◽  
Colin Ferguson ◽  
Philippa Gerard ◽  
David Hodges ◽  
John Kean ◽  
...  
Keyword(s):  
Climate Change ◽  
Carbon Dioxide ◽  
Range Expansion ◽  
Insect Pests ◽  
Climate Change Impacts ◽  
Geographic Range ◽  
Pastoral Systems ◽  
Carbon Dioxide Levels ◽  
Farm System ◽  
Impacts Of Climate Change

It is well understood that damage by insect pests can have serious consequences for pasture resilience. However, the impacts of climate change on pastoral systems, the responses of insect pests, and implications for pest impact mitigation are unclear. This paper reviews pest responses to climate change, including direct impacts such as temperature and carbon dioxide levels, geographic range expansion, sleeper pests, and outbreaks resulting from disturbance such as drought and farm system changes. The paper concludes with a plea for transdisciplinary research into pasture resilience under climate change that has insect pests as an integral component – not as an afterthought.

The Impacts of Climate Change on Crop Yields in Tanzania: Comparing an Empirical and a Process-Based Model

2018 ◽  
pp. 149-163
Author(s):  
Pedram Rowhani ◽  
Navin Ramankutty ◽  
William J. Martin ◽  
Ana Iglesias ◽  
Thomas W. Hertel ◽  
...  
Keyword(s):  
Climate Change ◽  
Crop Yields ◽  
Impacts Of Climate Change

scholarly journals Simulation of Staple Crop Yields for Determination of Regional Impacts of Climate Change: A Case Study in Chonnam Province, Republic of Korea

Agronomy ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 2544
Author(s):  
Jinsil Choi ◽  
Jonghan Ko ◽  
Kyu-Nam An ◽  
Saeed A. Qaisrani ◽  
Jong-Oh Ban ◽  
...  
Keyword(s):  
Climate Change ◽  
Crop Yields ◽  
Food Resource ◽  
Paddy Rice ◽  
Republic Of Korea ◽  
Crop Models ◽  
Regional Impacts ◽  
Staple Crop ◽  
The Impact ◽  
Impacts Of Climate Change

This study sought to simulate regional variation in staple crop yields in Chonnam Province, Republic of Korea (ROK), in future environments under climate change based on the calibration of crop models in the Decision Support System for Agricultural Technology Transfer 4.6 package. We reproduced multiple-year yield data for paddy rice (2013–2018), barley (2000–2018), and soybean (2004–2018) grown in experimental fields at Naju, Chonnam Province, using the CERES-Rice, CERES-Barley, and CROPGRO-Soybean models. A geospatial crop simulation modeling (GCSM) system developed using the crop models was then applied to simulate the regional impacts of climate change on the staple crops according to the Representative Concentration Pathway 4.5 and 8.5 scenarios. Simulated crop yields agreed with the corresponding measured crop yields, with root means square deviations of 0.31 ton ha−1 for paddy rice, 0.29 ton ha−1 for barley, and 0.27 ton ha−1 for soybean. We also demonstrated that the GCSM system could effectively simulate spatiotemporal variations in the impact of climate change on staple crop yield. The CERES and CROPGRO models seem to reproduce the effects of climate change on region-wide staple crop production in a monsoonal climate system. Added advancements of the GCSM system could facilitate interpretations of future food resource insecurity and establish a sustainable adaption strategy.

scholarly journals Climate Change, Flood Disaster Risk and Food Security Nexus in Northern Ghana

2021 ◽  
Vol 5 ◽  
Author(s):  
Raphael Ane Atanga ◽  
Vitus Tankpa
Keyword(s):  
Climate Change ◽  
Food Security ◽  
Food Production ◽  
Crop Yields ◽  
Flood Disaster ◽  
Sub Saharan Africa ◽  
Northern Ghana ◽  
Disaster Impacts ◽  
Flood Disasters ◽  
Impacts Of Climate Change

This research reviews climate change, flood disasters impacts and food security nexus in northern Ghana. The impacts of climate change include flood disasters which in turn affect food production with subsequent impact on food security. While climate change impact can be positive in some regions, it can be negative in other regions as it could lead to excess or lack of water, which negatively affects food production. Most especially, flood disasters have reportedly become frequent with devastating consequences on food production. Literature further suggests that the frequency of floods and their impacts have the potential to increase in the future. Floods inundate farms, pastures and livestock, which could subsequently reduce crop yields and animal production. Floods also destroys physical infrastructure and disrupts socio-economic activities which are linked to agriculture sector and could affect food production. This eventually decreases food availability, accessibility, utilization, and stability in the region. Northern Ghana has experienced flood disasters with increased frequency, which are related to climate change impacts. Although there is research on climate change, flood disasters, and food security issues in northern Ghana, the literature thus far indicates no clear focus of studies that focuses on the nexus of climate change, flood disasters, and food security of the study site. Thus, this research seeks to review the nexus of climate change, and flood disaster impacts on food security in northern Ghana with their implications on food security in the region. This study has two main research objectives. The first objective of this research is to identify and understand the potential impacts of climate change and flood disasters on food production in the study site. The second research objective is to explain the connection between climate change and flood disasters and the implications of this relationship on food security in the study site. This review study focuses on climate change, flood disasters, and food production to understand the critical impacts of climate change and flood disasters on food security in the northern part of Ghana. The aim of this research is to contribute to literature and discussion of the nexus of climate change, flood disaster impacts and food security sub-Saharan Africa.

A Hydro-Economic Modeling Framework for Climate Change Impacts and Adaptation Assessment in Thailand with Multi-Sectoral Linkages and Multi-Scale Vulnerability

2020 ◽  
Author(s):  
Aksara Putthividhya ◽  
Wimolpat Bumbudsanpharoke Khamkanya ◽  
Somkiat Prajamwong
Keyword(s):  
Climate Change ◽  
Crop Yields ◽  
Supply And Demand ◽  
Climate Change Impacts ◽  
Economic Modeling ◽  
Management Policy ◽  
Modeling Framework ◽  
Multi Scale ◽  
Sectoral Linkages ◽  
Impacts Of Climate Change

<p>Recent research has demonstrated the multidimensional and multi-sectoral impacts of climate change, evidencing the need to develop national and sub-national integrated tools and policies for the analysis of impacts and adaptation, especially central to local policy recommendation and implementation. This framework combines an area-based economic optimization model with the hydrological model WEAP, and represents the socio-economic, agronomic, and hydrologic systems in a spatially explicit manner covering dimensions and scales relevant to downscaled climate change impacts.  Simulated scenarios are setup to incorporate climate scenario, prior-historic dependence to adaptation conformity, and two policy-based adaptation scenarios. Preliminary results indicate that climate change may impact severely in rain-fed agricultural area and also to irrigation systems reducing water availability and security and crop yields, and increasing in more efficient irrigation water allocation.  The adaptation strategies analysis based on socio-economic, agronomic, and hydrologic dimensions capitalizes the key role of Thailand supply- and demand-side management policy in facilitating adaptation. The under developing framework is currently anticipated to be a useful tool for supporting water resources and climate change policy making.  It can contribute to improve understanding on potential impacts of climate change, multi-sectoral linkages, multi-scale vulnerability, and adaptation programs.   </p>

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