Adaptation strategies for rice cultivation under climate change in Central Vietnam

Shrestha, Sangam; Deb, Proloy; Bui, Thi Thu Trang

doi:10.1007/s11027-014-9567-2

Cited by 68 publications

(34 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Extreme weather events will occur more often, including droughts, floods, coastal storms, and heat waves, increasing mortality and property damage. As warmer temperatures combine with more extreme weather events, cereal yields will decrease [1,2]. If we fail to limit fossil fuel combustion, all of the effects will increase [3].…”

Section: Impacts Of Climate Change and The Social Cost Of Carbonmentioning

confidence: 99%

Impact of Climate Change on Twenty-First Century Crop Yields in the U.S.

Petersen

2019

Climate

View full text Add to dashboard Cite

Crop yields are strongly dependent on the average climate, extreme temperatures, and carbon dioxide concentrations, all of which are projected to increase in the coming century. In this study, a statistical model was created to predict US yields to 2100 for three crops using low and high-emissions future scenarios (RCP 4.5 and 8.5). The model is based on linear regressions between historical crop yields and daily weather observations since 1970 for every county in the US. Yields were found to be most strongly dependent on heat waves, summer average temperatures, and killing degree days; these relationships were hence used to predict future yields. The model shows that warming temperatures will significantly decrease corn and soybean yields, but will not have as strong of an influence on rice. Before accounting for CO 2 fertilization, crops in the high-emissions scenario are predicted to produce 77%, 85%, and 96% of their expected yield without climate change for corn, soybeans, and rice, respectively. When a simple CO 2 fertilization factor is included, corn, a C4 plant, increases slightly, while the yields of the C3 plants (soybeans and rice) are actually predicted to increase compared to today's yields. This study exhibits the wide range of possible impacts of climate change on crop yields in the coming century, and emphasizes the need for field research on the combined effects of CO 2 fertilization and heat extremes.Climate 2019, 7, 40 2 of 17 century [6]. Agriculture is a substantial portion of the economy, and crop yields are highly dependent on temperature. Other impacts are more difficult to put a price on, such as biodiversity and ecosystem loss. The currently accepted cost of carbon dioxide when considering these externalities varies between $37 and $220 per ton emitted [7]. Warming Temperatures Impact AgricultureThe United States produces 41% of the world's corn and 38% of the world's soybeans, two of the four largest crop sources of caloric energy [8]. These crops are thus crucial to food security, and understanding how their yields will change in the next century could help drive more informed policy decisions.The growing world population requires a larger food supply. Historical improvements in crop yields from agricultural technology (e.g., pesticides, fertilizers, farm machinery, gene modification, and shifting of production to large corporations [9]) have kept up with increasing demand for several decades, but it is doubtful that yields will continue to grow at the same rate as they have since 1970. Population is unlikely to stop growing this century, and by 2100 there will be between 9.6 and 12.3 billion people on earth [10]. Research has shown that yields are projected to drop in coming decades due to warming temperatures and the potential emergence of virulent crop diseases [11,12].Crop yields are strongly dependent on the weather and may be predicted from observed weather events during the growing season [13][14][15][16]. Over 60% of yield variability in global breadbaskets can be explained by...

show abstract

Section: Impacts Of Climate Change and The Social Cost Of Carbonmentioning

confidence: 99%

Impact of Climate Change on Twenty-First Century Crop Yields in the U.S.

Petersen

2019

Climate

View full text Add to dashboard Cite

show abstract

“…In water-scarce regions such as the Sri Lankan dry zone, adaptations include increasing reservoir capacity and water-use efficiency through water harvesting and practices that conserve soil moisture in dry areas or prevent soil erosion and water logging in wet areas (Wassmann et al 2009, Babel et al 2011, Varela-Ortega et al 2016). Paddy-specific adaptations include choosing paddy varieties that are better suited to the new climate (Wassmann et al 2009, Babel et al 2011, Varela-Ortega et al 2016, Dasinaa and Sugirtharan 2017, changing planting and harvesting schedules (Babel et al 2011, Banerjee et al 2016, Shrestha et al 2016, Dasinaa and Sugirtharan 2017, transplanting seedlings (Banerjee et al 2016), alternate wetting and drying of paddy to reduce irrigation water requirements (Rejesus et al 2011, Dasinaa andSugirtharan 2017), and improving pest and disease management through integrated pest management and the selection of disease and pest resistant varieties (Wassmann et al 2009).…”

Section: Climate Change Adaptation and Adaptation Strategiesmentioning

confidence: 99%

“…climate change on farmer livelihoods (Reidsma et al 2010, Shrestha et al 2016. Mitigating the impacts of climate change on agriculture is one of six strategic priorities outlined in the National Climate Change Adaptation Strategy (Government of Sri Lanka, 2010a).…”

Section: Nested Enterprisesmentioning

confidence: 99%

The implications of group norms for adaptation in collectively managed agricultural systems: evidence from Sri Lankan paddy farmers

Poterie¹,

Burchfield²,

Carrico³

2018

E&S

View full text Add to dashboard Cite

A growing literature seeks to explore the factors shaping adaptation to climate change. In collectively managed common pool resource systems, there is often a tension between behavior that benefits the individual and actions that benefit a larger group. Resource users in sustainable systems must therefore work together to ensure outcomes that are beneficial to the group as a whole. However, in the face of changing social, political, and environmental conditions, community norms may change, leading to the emerging of new behavioral patterns. Understanding when and why people decide to act in ways that benefit the group as a whole can help policy makers better target policies or change incentives to promote desired outcomes. This research seeks to build on research in common pool resource management and multilevel selection to understand how and why collective pressures shape individual adaptation behavior. Using qualitative data from in-depth interviews of farmers in Sri Lanka, this study confirms that collective management practices in Sri Lankan irrigation systems significantly influence farmer's potential adaption behaviors. Based on farmer's explanations of their own behavior, we hypothesize that farmer's belief in the ecological necessity of cooperation and explicit government support for collective action are important drivers of collective action. Given the influence of community rules and norms, we conclude that efforts at adaptation are more likely to be successful if they target farmer organizations and communities as a whole rather than individual farmers.

show abstract

“…In a simulation study of the potential impacts of climate change in central Vietnam, Shrestha et al [102] determine that the projected decrease in rice yields of 1% to 23% in the winter season can be offset by delaying the date of transplanting by one month and applying 100 mm of irrigation water in each of four events during the season. At present, winter rice production is largely rainfed in the region, although water for irrigation is available in perennial streams.…”

Section: Farm-level Adaptationmentioning

confidence: 99%

“…At present, winter rice production is largely rainfed in the region, although water for irrigation is available in perennial streams. Applying fertilizer in several doses, rather than a single dose, can increase rice yields by 1.8% to 5.1% [102].…”

Section: Farm-level Adaptationmentioning

confidence: 99%

Managing Water and Soils to Achieve Adaptation and Reduce Methane Emissions and Arsenic Contamination in Asian Rice Production

Wichelns

2016

Water

View full text Add to dashboard Cite

Rice production is susceptible to damage from the changes in temperature and rainfall patterns, and in the frequency of major storm events that will accompany climate change. Deltaic areas, in which millions of farmers cultivate from one to three crops of rice per year, are susceptible also to the impacts of a rising sea level, submergence during major storm events, and saline intrusion into groundwater and surface water resources. In this paper, I review the current state of knowledge regarding the potential impacts of climate change on rice production and I describe adaptation measures that involve soil and water management. In many areas, farmers will need to modify crop choices, crop calendars, and soil and water management practices as they adapt to climate change. Adaptation measures at the local, regional, and international levels also will be helpful in moderating the potential impacts of climate change on aggregate rice production and on household food security in many countries. Some of the changes in soil and water management and other production practices that will be implemented in response to climate change also will reduce methane generation and release from rice fields. Some of the measures also will reduce the uptake of arsenic in rice plants, thus addressing an important public health issue in portions of South and Southeast Asia. Where feasible, replacing continuously flooded rice production with some form of aerobic rice production, will contribute to achieving adaptation objectives, while also reducing global warming potential and minimizing the risk of negative health impacts due to consumption of arsenic contaminated rice.

show abstract

Adaptation strategies for rice cultivation under climate change in Central Vietnam

Cited by 68 publications

References 32 publications

Impact of Climate Change on Twenty-First Century Crop Yields in the U.S.

Impact of Climate Change on Twenty-First Century Crop Yields in the U.S.

The implications of group norms for adaptation in collectively managed agricultural systems: evidence from Sri Lankan paddy farmers

Managing Water and Soils to Achieve Adaptation and Reduce Methane Emissions and Arsenic Contamination in Asian Rice Production

Contact Info

Product

Resources

About