scholarly journals Influence mechanism of climate change over crop growth and water demands for wheat-rice system of Punjab, Pakistan

2020 ◽  
Author(s):  
Mirza Junaid Ahmad ◽  
Gun-Ho Cho ◽  
Sang-Hyun Kim ◽  
Seulgi Lee ◽  
Bashir Adelodun ◽  
...  
Keyword(s):  
Climate Change ◽  
Temperature Rise ◽  
Growth Period ◽  
Crop Growth ◽  
Crop Failure ◽  
Water Requirements ◽  
Security Issues ◽  
Agriculture Sector ◽  
Water Demands ◽  
The Future

Abstract Conceptualizing the climate change perspective of crop growth and evapotranspiration (ETc) rates and subsequent irrigation water requirements (IWR) is necessary for sustaining the agriculture sector and tackling food security issues in Pakistan. This article projects the future growth periods and water demands for the wheat-rice system of Punjab. Intense and hotter transitions in the future thermal regimes and erratic monsoon rainfall increments were envisaged. The crop growth rates were accelerated by the probable temperature rise resulting in shortened growth periods. The temperature rise increased the reference evapotranspiration rates; however, the future ETc declined due to reduced growth period and net radiation. Highly unpredictable, but mostly increasing, cumulative seasonal and annual rainfalls were indicative of more effective rainfalls during the future crop seasons. Reduced ETc and increments in seasonal effective rainfalls gave rise to the declining IWR for both crops. The study findings seemingly undermined the harmful climate change influences on the water requirements of the wheat-rice system of Punjab but alarmingly shortening of growth periods indicates a higher crop failure tendency under the projected future thermal regime.

Climate Change and Agriculture

2016 ◽  
pp. 393-415 ◽  
Author(s):  
Sunil Lalasaheb Londhe
Keyword(s):  
Climate Change ◽  
Atmospheric Carbon Dioxide ◽  
Crop Production ◽  
Agricultural Sector ◽  
Great Depth ◽  
Mitigation Measures ◽  
Agriculture Sector ◽  
The Future ◽  
Food Security And Nutrition ◽  
Earth’S Climate

Increasing evidence shows that shifts in Earth's climate have already occurred and indicates that changes will continue in the coming years. This chapter is an attempt to distil what is known about the likely effects of climate change on food security and nutrition in coming decades. Apart from few exceptions, the likely impacts of climate change on agricultural sector in the future are not understood in any great depth. There are many uncertainties as to how changes in temperature, rainfall and atmospheric carbon dioxide concentrations will interact in relation to agricultural productivity. The consequences of climate change on various important aspects of agriculture such as crop production, livestock, availability of water, pest and diseases etc. are discussed and summarized. Each of this aspect of agriculture sector will have certain impact which may be positive or negative. The chapter also discusses on the possible mitigation measures and adaptations for agriculture production in the future climate change scenarios.

Climate Change and Agriculture

2018 ◽  
pp. 1-23
Author(s):  
Sunil Lalasaheb Londhe
Keyword(s):  
Climate Change ◽  
Atmospheric Carbon Dioxide ◽  
Crop Production ◽  
Agricultural Sector ◽  
Great Depth ◽  
Mitigation Measures ◽  
Agriculture Sector ◽  
The Future ◽  
Food Security And Nutrition ◽  
Earth’S Climate

Increasing evidence shows that shifts in Earth's climate have already occurred and indicates that changes will continue in the coming years. This chapter is an attempt to distil what is known about the likely effects of climate change on food security and nutrition in coming decades. Apart from few exceptions, the likely impacts of climate change on agricultural sector in the future are not understood in any great depth. There are many uncertainties as to how changes in temperature, rainfall and atmospheric carbon dioxide concentrations will interact in relation to agricultural productivity. The consequences of climate change on various important aspects of agriculture such as crop production, livestock, availability of water, pest and diseases etc. are discussed and summarized. Each of this aspect of agriculture sector will have certain impact which may be positive or negative. The chapter also discusses on the possible mitigation measures and adaptations for agriculture production in the future climate change scenarios.

scholarly journals Financing Sustainable and Resilient Food Systems in Asia and the Pacific

2021 ◽  
Keyword(s):  
Climate Change ◽  
Food Security ◽  
Sustainable Management ◽  
Food Systems ◽  
Food Supply Chains ◽  
Security Issues ◽  
Agriculture Sector ◽  
Food And Agriculture ◽  
The Pacific ◽  
Mitigate Climate Change

The coronavirus disease (COVID-19) pandemic has highlighted food security issues and nutrition gaps in Asia and the Pacific, where various risks and fragilities have continually affected the food and agriculture sector. There is a clear need to integrate sustainable management of natural resources, nutritional considerations, and the economic dimensions of food supply chains to enhance resilience and mitigate climate change. This publication explores how innovative financing and transformative knowledge solutions can help address the financing gaps and other challenges of food systems in the region.

Climat change – a threat multiplier in the future conflicts

2018 ◽  
pp. 105-120
Author(s):  
Tomasz Gajewski
Keyword(s):  
Climate Change ◽  
Public Opinion ◽  
Case Studies ◽  
Climate Change Impact ◽  
Security Issues ◽  
The Future ◽  
Change Impact ◽  
Ecosystem Transformation

Climate change generates great controversies in public opinion. Political debacles, scientific feuds and NGOs activities sometimes overshadow objectively defined challenges created by global ecosystem transformation. Nevertheless, discussion about the genesis of climate change is increasingly concentrated on security issues. The author of the presented articles explores the notion of climate change being a threat multiplier in the conflicts of the future. The purpose of the article is to outline a rudimentary prognose of climate change impact on existing and potential conflicts. Several case studies are used in the analysis.

scholarly journals Characteristics and cause analysis of flue-cured tobacco's water requirements during growth periods in low latitude plateau area, China

2018 ◽  
Vol 11 (2) ◽  
pp. 402-419
Author(s):  
Na Fu ◽  
Xiaoyu Song ◽  
Lu Xia ◽  
Lanjun Li ◽  
Xiaogang Liu
Keyword(s):  
21St Century ◽  
Yunnan Province ◽  
Principal Component ◽  
Growth Period ◽  
Irrigation Requirement ◽  
Water Requirements ◽  
Intergovernmental Panel ◽  
Plateau Area ◽  
The Future ◽  
Late 21St Century

Abstract This study aimed to identify the future changes in water requirements (ETc) of flue-cured tobacco by comparing estimated ETc values in the future with previous usage. This will provide a basis for estimating irrigation requirements, and help improve agricultural water use efficiency in the future. The Penman–Monteith equation and the single-crop efficient method were used to calculate the flue-cured tobacco ETc, net irrigation requirement (IR) and net irrigation requirement index (IDI) for the period 1956–2015, and the four Intergovernmental Panel on Climate Change (IPCC) AR5 emission scenarios were used to estimate ETc for two future periods (2046–2065 and 2081–2100) in the central Yunnan Province, China. The results showed that the IDI gradually decreased, along with the growth of flue-cured tobacco. The ETc, IR and IDI values increased with latitude in central Yunnan Province. Furthermore, the variations in the ETc over the whole growth period in the mid-21st century and late-21st century also tended to increase with latitude. In addition, based on the influence of climate variation on the ETc as assessed by a principal component analysis, precipitation was the main factor affecting flue-cured tobacco growth. This study contributes to the establishment of suitable irrigation systems for flue-cured tobacco at every growth stage in central Yunnan Province.

scholarly journals Modelling Maize Yield and Water Requirements under Different Climate Change Scenarios

Climate ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 127
Author(s):  
Oludare Sunday Durodola ◽  
Khaldoon A. Mourad
Keyword(s):  
Climate Change ◽  
Crop Production ◽  
Water Productivity ◽  
Baseline Period ◽  
Climate Change Scenarios ◽  
Crop Water ◽  
African Countries ◽  
Water Requirements ◽  
The Future ◽  
Impacts Of Climate Change

African countries such as Nigeria are anticipated to be more susceptible to the impacts of climate change due to large dependence on rainfed agriculture and to several uncertainties in the responses of crop production to climate change. The impacts of climate change on crop water requirements (CWR), irrigation water requirements (IWR), yields and crop water productivity (CWP) of rainfed maize in Ogun-Osun River Basin, Nigeria were evaluated for a baseline period (1986–2015) and future projection period (2021–2099) under Representative Concentration Pathway (RCP) 4.5 and RCP 8.5 scenarios. For the baseline period, there is no significant trend within the variables studied. However, IWR is projected to increase significantly by up to 140% in the future period, while yield might likely decline under both scenarios up to −12%. This study shows that in the future periods, supplemental irrigation has little impact in improving yields, but an increase in soil fertility can improve yields and CWP by up to 80% in 2099. This paper offers useful information on suitable adaptation measures which could be implemented by stakeholders and policymakers to counterbalance the effects of climate change on crop production.

scholarly journals Trends and Climate Response in the Phenology of Crops in Northeast China

2021 ◽  
Vol 9 ◽  
Author(s):  
Dengpan Xiao ◽  
Yi Zhang ◽  
Huizi Bai ◽  
Jianzhao Tang
Keyword(s):  
Climate Change ◽  
Northeast China ◽  
Growth Period ◽  
Crop Growth ◽  
Growth Stages ◽  
Climate Response ◽  
Climate Factors ◽  
Crop Phenology ◽  
Phenological Changes ◽  
The Impact

Crop phenology is the process of crop growth and yield formation, which is largely driven by climatic conditions. It is vital to investigate the shifts in crop phenological processes in response to climate variability. Previous studies often only explored the response of a single crop phenology to climate change, and lacked comparative studies on the climate response in different crop phenology. We intend to investigate the trends in phenological change of three typical crops (i.e., maize, rice and soybean) in Northeast China (NEC) and their response to climate change during 1981–2010. Its main purpose is to reveal the differences in the sensitivity of different crop phenology to key climate factors [e.g., mean temperature (T), accumulated precipitation (AP) and accumulated sunshine hours (AS) during the crop growth period]. We found that the three crops have different phenological changes and varying ranges, and significant spatial heterogeneity in phenological changes. The results indicated that the lengths of different crop growth stages [e.g., the vegetative growth period (VGP), the reproductive growth period (RGP) and the whole growth period (WGP)] were negatively correlated with T, especially in VGP and WGP. However, the lengths of growth period of the three crops were positively correlated with AP and AS. For each 1°C increase in T, the number of days shortened in WGP (about 5 days) was the largest, and that in RGP (less than 2 days) was the smallest. Therefore, the increases in T during past 3 decades have significantly shortened VGP and WGP of three crops, but had slight and inconsistent effects on RGP. Moreover, changes in AP has slight impact on the growth periods of maize and rice, and significantly shortened RGP and WGP of soybean. Changes in AS exerted important and inconsistent effects on the phenology of three crops. This study indicated that there are significant differences in the sensitivity and response of different crop phenology to climate factors. Therefore, in evaluating the response and adaptation of crops to climate change, comparison and comprehensive analysis of multiple crops are helpful to deeply understand the impact of climate change on crop production.

What we can learn from the parallels between the COVID-19 and the future climate change crises

2020 ◽  
Author(s):  
Rubén D. Manzanedo ◽  
Peter Manning
Keyword(s):  
Climate Change ◽  
Global Economy ◽  
Global Climate ◽  
Future Climate Change ◽  
Substantial Portion ◽  
Preventative Measures ◽  
The Future ◽  
Behavioral Norm ◽  
Climate Crisis ◽  
Global Population

The ongoing COVID-19 outbreak pandemic is now a global crisis. It has caused 1.6+ million confirmed cases and 100 000+ deaths at the time of writing and triggered unprecedented preventative measures that have put a substantial portion of the global population under confinement, imposed isolation, and established ‘social distancing’ as a new global behavioral norm. The COVID-19 crisis has affected all aspects of everyday life and work, while also threatening the health of the global economy. This crisis offers also an unprecedented view of what the global climate crisis may look like. In fact, some of the parallels between the COVID-19 crisis and what we expect from the looming global climate emergency are remarkable. Reflecting upon the most challenging aspects of today’s crisis and how they compare with those expected from the climate change emergency may help us better prepare for the future.

Love, Inc.

2019 ◽  
Author(s):  
Laurie Essig
Keyword(s):  
Climate Change ◽  
Global Climate Change ◽  
Structural Changes ◽  
Global Climate ◽  
Dating Apps ◽  
Sense Of Security ◽  
True Love ◽  
The Future ◽  
False Sense ◽  
Global Movements

In Love, Inc., Laurie Essig argues that love is not all we need. As the future became less secure—with global climate change and the transfer of wealth to the few—Americans became more romantic. Romance is not just what lovers do but also what lovers learn through ideology. As an ideology, romance allowed us to privatize our futures, to imagine ourselves as safe and secure tomorrow if only we could find our "one true love" today. But the fairy dust of romance blinded us to what we really need: global movements and structural changes. By traveling through dating apps and spectacular engagements, white weddings and Disney honeymoons, Essig shows us how romance was sold to us and why we bought it. Love, Inc. seduced so many of us into a false sense of security, but it also, paradoxically, gives us hope in hopeless times. This book explores the struggle between our inner cynics and our inner romantic.

Machine Learning in Agriculture

2018 ◽  
Vol 8 (6) ◽  
pp. 26 ◽  
Author(s):  
Matthew N. O. Sadiku ◽  
Chandra M. M Kotteti ◽  
Sarhan M. Musa
Keyword(s):  
Climate Change ◽  
Artificial Intelligence ◽  
Machine Learning ◽  
Disease Diagnosis ◽  
Automated Detection ◽  
Disease Prediction ◽  
Paper Briefly ◽  
Agriculture Sector ◽  
Modern Agriculture ◽  
Crop Disease

Machine learning is an emerging field of artificial intelligence which can be applied to the agriculture sector. It refers to the automated detection of meaningful patterns in a given data.  Modern agriculture seeks ways to conserve water, use nutrients and energy more efficiently, and adapt to climate change.  Machine learning in agriculture allows for more accurate disease diagnosis and crop disease prediction. This paper briefly introduces what machine learning can do in the agriculture sector.

Sign in / Sign up

Export Citation Format

Share Document