Validation of Corn, Soybean, and Wheat Models in DSSAT for Assessing Climate Change Impacts on Midwest Crop Production

Being a country in the Himalayas, Bhutan is highly prone to the vagaries of weather events that affect agricultural production and the subsequent livelihood of the people. To identify the main issues that affect crop production and the decisions of farmers, a survey was conducted in three different agro-ecosystems in Bhutan. Our key findings indicate that farming and the decisions of farmers were largely affected by different climatic and non-climatic factors. These were in descending order of importance: irrigation availability > farm labour > crop seasonality > crop damage (climatic) > land holding > crop damage (wildlife) > crop damage (diseases and pests). The most important consequences of climate change impacts were the drying of irrigation sources (4.35) and crop losses due to weather events (4.10), whereas land fallowing, the occurrence of flood and soil erosion, weed pressure and changes in cropping pattern (with mean ratings of 2.53–3.03) experienced lesser consequences. The extreme weather events, such as untimely rains, drought and windstorms, were rated as the ‘most common’ to ‘common’ occurrences, thus inflicting a crop loss of 1–19%. These confirm our hearsay knowledge that extreme weather events have major consequences on irrigation water, which is said to be either drying or getting smaller in comparison to the past. Therefore, Bhutan must step up its on-ground farmer-support system towards improving the country’s food production, whilst embracing climate smart farm technologies for adapting to the impacts of change.

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Impact of Climate Change on Crops Adaptation and Strategies to Tackle Its Outcome: A Review

Plants ◽

10.3390/plants8020034 ◽

2019 ◽

Vol 8 (2) ◽

pp. 34 ◽

Cited By ~ 91

Author(s):

Ali Raza ◽

Ali Razzaq ◽

Sundas Mehmood ◽

Xiling Zou ◽

Xuekun Zhang ◽

...

Keyword(s):

Climate Change ◽

Food Security ◽

Crop Production ◽

Climate Changes ◽

Heat Waves ◽

Negative Impact ◽

Global Climate ◽

Climate Change Impacts ◽

Annual Rainfall ◽

Ozone Level

Agriculture and climate change are internally correlated with each other in various aspects, as climate change is the main cause of biotic and abiotic stresses, which have adverse effects on the agriculture of a region. The land and its agriculture are being affected by climate changes in different ways, e.g., variations in annual rainfall, average temperature, heat waves, modifications in weeds, pests or microbes, global change of atmospheric CO2 or ozone level, and fluctuations in sea level. The threat of varying global climate has greatly driven the attention of scientists, as these variations are imparting negative impact on global crop production and compromising food security worldwide. According to some predicted reports, agriculture is considered the most endangered activity adversely affected by climate changes. To date, food security and ecosystem resilience are the most concerning subjects worldwide. Climate-smart agriculture is the only way to lower the negative impact of climate variations on crop adaptation, before it might affect global crop production drastically. In this review paper, we summarize the causes of climate change, stresses produced due to climate change, impacts on crops, modern breeding technologies, and biotechnological strategies to cope with climate change, in order to develop climate resilient crops. Revolutions in genetic engineering techniques can also aid in overcoming food security issues against extreme environmental conditions, by producing transgenic plants.

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Assessing climate change impacts on greenhouse gas emissions, N losses in drainage and crop production in a subsurface drained field

The Science of The Total Environment ◽

10.1016/j.scitotenv.2019.135969 ◽

2020 ◽

Vol 705 ◽

pp. 135969 ◽

Cited By ~ 2

Author(s):

Qianjing Jiang ◽

Zhiming Qi ◽

Lulin Xue ◽

Melissa Bukovsky ◽

Chandra A. Madramootoo ◽

...

Keyword(s):

Climate Change ◽

Greenhouse Gas Emissions ◽

Greenhouse Gas ◽

Crop Production ◽

Climate Change Impacts ◽

N Losses ◽

Gas Emissions

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Decision Support System to Study Climate Change Impacts on Crop Production

Climate Change and Agriculture: Analysis of Potential International Impacts - ASA Special Publications ◽

10.2134/asaspecpub59.c3 ◽

2015 ◽

pp. 51-75 ◽

Cited By ~ 11

Author(s):

Gerrit Hoogenboom ◽

Gordon Y. Tsuji ◽

Nigel B. Pickering ◽

R. Bruce Curry ◽

James W. Jones ◽

...

Keyword(s):

Climate Change ◽

Decision Support ◽

Decision Support System ◽

Support System ◽

Crop Production ◽

Climate Change Impacts

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Estimations of climate change impacts on crop production in the Republic of Moldova

GeoJournal ◽

10.1023/b:gejo.0000003612.11530.bf ◽

2002 ◽

Vol 57 (3) ◽

pp. 195-202 ◽

Cited By ~ 5

Author(s):

R. Corobov

Keyword(s):

Climate Change ◽

Crop Production ◽

Climate Change Impacts ◽

Republic Of Moldova ◽

The Republic

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Climate change impacts on agriculture sector: A case study of Pakistan

Ciência Rural ◽

10.1590/0103-8478cr20200110 ◽

2021 ◽

Vol 51 (8) ◽

Author(s):

Uzair Ali ◽

Wang Jing ◽

Jialin Zhu ◽

Zhibek Omarkhanova ◽

Shah Fahad ◽

...

Keyword(s):

Climate Change ◽

Agricultural Production ◽

Crop Production ◽

Agricultural Development ◽

Negative Impact ◽

Influence Factors ◽

Climate Change Impacts ◽

Agriculture Sector ◽

Temperature And Precipitation ◽

Vulnerability To Climate Change

ABSTRACT: The current article looks at the effects of climate change on agriculture, especially crop production, and influence factors of agricultural development in terms of their rational use in Pakistan. Due to the dependence of economic development, and agriculture in the South Asian region on access to renewable national resources and the associated vulnerability to climate change, the limited financial and professional resources of the Islamic Republic of Pakistan require a clear definition of national priorities in this area. In the preparation of this article, general scientific cognition methods, in particular, empirical-theoretical methods were used. Grouping and classification methods have been used to process and systematize the data. The ability to change productivity, depending on the variation of the average annual air temperature and the average annual precipitation rate, was considered using a two-factor regression model. The main finding of the study is that temperature and precipitation have a negative impact on agricultural production. This study can provide a scientific justification for the specialization of agricultural production in the regions of Pakistan as well as the execution of the necessary agricultural activities.

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RCP 8.5 Ghana. High-end climate change impacts on crop production

10.5194/egusphere-egu2020-8955 ◽

2020 ◽

Author(s):

Sylvia Tramberend ◽

Günther Fischer ◽

Harrij van Velthuizen

Keyword(s):

Climate Change ◽

High Resolution ◽

Crop Production ◽

Agricultural Sector ◽

Climate Model ◽

Regional Climate ◽

Climate Change Impacts ◽

Development Planning ◽

Sub Saharan Africa ◽

Sub Saharan

<p>Climate change threatens vulnerable communities in sub-Saharan Africa who face significant challenges for adaptation. Agriculture provides the livelihood for the majority of population. High-resolution assessments of the effects of climate change on crop production are urgently needed for targeted adaptation planning. In Ghana, next to food needs, agriculture plays an important role on international cocoa markets. To this end, we develop and apply a National Agro-Ecological Zoning system (NAEZ Ghana) to analyze the impacts of high-end (RCP8.5) global warming on agricultural production potentials until the end of this century. NAEZ Ghana uses an ensemble of the CORDEX Africa Regional Climate Model, a regional soil map, to assess development trends of crop production potentials for 19 main crops. Results highlight differential impacts across the country. Especially due to the significant increase in the number of days exceeding high-temperature thresholds, rain-fed production of several food and export crops could be reduced significantly compared to the historical 30-year average (1981-2010). Plantain production, an important food crop, could achieve under climate change less than half of its current potential already in the 2050s and less than 10% by the 2080s. Suitable areas for cocoa production decrease strongly resulting in only one third of production potential compared to today. Other crops with detrimental effects of climate change include oil palm, sugarcane, coffee, and rubber. Production of maize, sorghum, and millet cope well with a future warmer climate. The NAEZ Ghana database provides valuable high-resolution information to support agricultural sector development planning and climate change adaptation strategies. The expansion of irrigation development will play a central role in some areas. This requires further research on Ghana&#8217;s linkages between food, water, and energy, taking into account climate and socio-economic changes.</p>

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Smallholder Farmers Vulnerability Level to Climate Change Impacts and Implications to Agricultural Production in Tigray Regional State, Northern Ethiopia

Journal of Agriculture and Crops ◽

10.32861/jac.512.237.250 ◽

2019 ◽

pp. 237-250

Author(s):

Alemu Addisu ◽

Daniel Olago ◽

Shem Wandiga ◽

Silas Oriaso ◽

Dorothy A. Amwata

Keyword(s):

Climate Change ◽

Agricultural Production ◽

Single Unit ◽

Crop Production ◽

Climate Change Impacts ◽

Sampling Techniques ◽

Total Income ◽

Vulnerability To Climate Change ◽

Unit Increase ◽

Change Impact

Vulnerability to climate change impact is the most pressing issues for less developed countries whose economy mainly depends on the agricultural sector. The demand for food is growing swiftly whereas impacts of climate change on the global food production are increasing. More area specific research outputs and evidences-based policy directions are needed to tackle the ever changing climate and to reduce its impacts on the agricultural production. The aim of this study was to investigate subsistence farmer household’s vulnerability level to climate change impacts and its associations with household’s agricultural production. Then primary data was collected from 400 households from Kolla Temben District, Tigray Regional State, North Ethiopia. Multistage sampling techniques were applied to select households for interview from the district. In the first stage, 4 Kebelles (Kebelle - administration unit) were selected randomly out of 27 Kebelles and then400 households were selected for interview through systematic random sampling techniques (Figure 1). Multiple regressions were used to examine the associations between household’s vulnerability to climate change impacts and agricultural production. Grounded theory and content analysis techniques were use to analyze data from key informant interviews and focus group discussions. For every single unit increase in household vulnerability to climate change impacts, there was an average agricultural production decrease between 16.99 and 25.83 (Table 4). For single unit increase in household’s vulnerability to climate change impact, there was a decrease of total crop production, Total income, total livestock, total food consumption and food consumption per adult equivalent. Rainfall decrease, small farmland ownership, steep topography, frequent flood occurrences and large family size are among the major factors that negatively affect household’s agricultural production and total income. The more the vulnerable the households, the less in total annual crop production, total livestock size, total income from agricultural production and the more dependent on food aid). There is a negative association between household’s vulnerability level to climate change impacts and agricultural production (crop production, total livestock ownerships and total income from crop production). More access to irrigation and agricultural fertilizers, improved varieties of crops, small family size, improve farmland ownership size, more access to education and Agricultural Extension services are an effective areas of intervention to improve household’s resilient, reduce households vulnerability level to climate change impacts and increase household’s total agricultural production.

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