Observed variability and trends in extreme temperature indices and rice–wheat productivity over two districts of Bihar, India—a case study

Subash, N.; Singh, S. S.; Priya, N. Gowri

doi:10.1007/s00704-012-0665-3

Cited by 12 publications

(7 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The modeling results show that the incidence of stress associated with low temperatures in rice and high temperatures in wheat may be relevant in Bihar. Considering current climate change and warming projections for the region, it is likely that the incidence and severity of terminal heat stress on wheat will increase in the future [17]. In this context, adaptation strategies that are relatively easy to implement, such as the one presented in this work, could become important for decision-makers.…”

Section: Discussionmentioning

confidence: 99%

“…Climate variability and seasonality are major determinants of agricultural productivity in Bihar. Given the dominant rainfed conditions of rice-wheat systems, while the productivity of the dominant kharif rice is highly determined by anomalies in monsoon rains, temperatures strongly determine the productivity of wheat in winter [12,17].…”

Section: Study Areamentioning

confidence: 99%

“…Previous studies have shown the impact of anomalously low and high temperatures on rice and wheat productivity in Bihar [17], suggesting that actionable adaptation strategies are needed as future climate change projections over the region show a clear increase in thermal stress conditions for crops [18]. In this regard, adaptation strategies to cope with the impacts of climate variability on rice-wheat systems range from breeding for more tolerant cultivars, short-duration cultivars, irrigation and water management, and rescheduling of planting dates [15].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Planting <em>Aman</em> Rice at Monsoon Onset Could Mitigate the Impact of Temperature Stress on Rice-Wheat Systems of Bihar, India

Montes¹,

Urfels²,

Han³

et al. 2022

Preprint

View full text Add to dashboard Cite

The rice-wheat rotation is the dominant cropping system in Bihar, where food security of the rural population depends heavily on the production of rice and wheat. In Bihar, climatic shocks induced by low temperatures and terminal heat stress can significantly affect rice and wheat yields. The present work evaluates the benefit of using the monsoon onset as the date for planting rice in reducing thermal stress on rice-wheat systems. High-resolution gridded crop simulations using the APSIM model were performed to simulate potential yields of rice and wheat using the monsoon onset and the farmers’ practice as planting dates. The monsoon onset was calculated using an agronomic definition and farmers’ practice dates were estimated using satellite data. Model outputs were analyzed in terms of planting dates, yields, and the incidence of low temperature stress on rice and high temperature stress on wheat by means of the APSIM yields limiting factors. The results show that the rice planting and harvest dates using the monsoon onset are in general 20-30 days earlier, decreasing the incidence of thermal stress in rice and wheat, and generating higher and more stable yields. These results can help design mitigation strategies for the impacts of climate shocks induced by low and high temperature events in the context of the advances in sub-seasonal and seasonal forecasting, targeting climate services for farmers in Bihar.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Planting <em>Aman</em> Rice at Monsoon Onset Could Mitigate the Impact of Temperature Stress on Rice-Wheat Systems of Bihar, India

Montes¹,

Urfels²,

Han³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Previous studies have shown the impact of anomalously low and high temperatures on rice and wheat productivity in Bihar [17], suggesting that adaptation strategies are necessary, since climate change projections over the region show an increase in thermal stress conditions for crops [18]. In this regard, adaptation strategies range from breeding for more tolerant cultivars, the use of short-duration cultivars, irrigation and water management, and the rescheduling of planting dates [15].…”

Section: Introductionmentioning

confidence: 99%

Planting Rice at Monsoon Onset Could Mitigate the Impact of Temperature Stress on Rice–Wheat Systems of Bihar, India

Montes

Urfels²,

Han

et al. 2022

Atmosphere

View full text Add to dashboard Cite

The rice–wheat rotation is the dominant cropping system in Bihar, where food security of the rural population depends heavily on the production of rice and wheat. In Bihar, farmers plant rice after the first significant rains, and climatic shocks induced by low temperatures and terminal heat stress at the end of the corresponding season can significantly affect rice and wheat yields. The present work evaluates the benefit of using an earlier date for planting rice, following the monsoon onset, in reducing thermal stress on rice–wheat systems. High-resolution gridded crop simulations using the APSIM model were performed to simulate potential yields using the monsoon onset and the farmers’ practice as planting dates. The monsoon onset was calculated using an agronomic definition, and farmers’ practice dates were estimated using satellite data. The results were analyzed in terms of planting dates, yields, and the incidence of temperature stress on rice and wheat by means of the APSIM yields limiting factors. The results show that the rice planting and harvest dates using the monsoon onset are, in general, 20–30 days earlier, which translates into higher and more stable potential yields, which can be up to 50% higher in wheat and 29% in rice. The incidence of thermal stress can be, on average, 12% lower in rice and 25% in wheat. These results can help design mitigation strategies for the impacts of temperature-induced shock events in the context of the advances in sub-seasonal and seasonal forecasting, targeting climate services for farmers in Bihar.

show abstract

“…Methods of study are also depicted in Table 1. Most of the studies done so far regarding the trend of extreme temperature change and its effect are based on percentile-based indices (Rohini et al, 2016), trend analysis using Mann-Kendall test and Sen's slope estimator (Subash et al, 2013;Pingale et al, 2014), HW/CW vulnerability index (Rohini et al, 2016, Azhar et al, 2017 in some selected period. In Indian cases, most of the studies taken Indian Meteorological Department (IMD) defined extreme temperature thresholds for analyzing HW and CW.…”

Section: Introductionmentioning

confidence: 99%

Exploring heat and cold wave susceptible areas of India using consistency and frequency coupled novel approach

Sarda

Halder

Das

et al. 2022

Preprint

View full text Add to dashboard Cite

A good many studies identified year-specific heat wave (HW) and cold wave (CW) using a percentile approach, the present study tried to identify and grade consecutive two and five days HW and CW spells using consistency and frequency coupled approach using the Indian Meteorological Department (IMD) endorsed gridded data across India since 1961 to 2021. The entire period was split into dry (1961–1990) and wet (1991–2021) phases to explore the long-term average of extreme temperature patterns and HW and CW change. The study revealed that wider parts of north western and central India were prone to statistically significant 30 years, 7 years, and 1-year average extreme temperature hot spot, and J & K and parts of north western India were prone to cold-spot (at 95 and 99% levels). The hot-spot and cold-spot dominated areas were again spotted as highly consistent and high-intensity HW and CW. About 60–65% area of north-western and central India was found consistent HW covering north western and central India. However, frequency and consistency coupled with HW intensity were recognized at five patches of the same area. Rajasthan and Delhi regions were found as the most intense HW zone. The average phase-wise change of HW was not very clear, however, some grids of this region recorded an increasing frequency of HW. CW intensity was increased by 13–26% in the northwestern tract over the phases. HW and CW matrix exhibited the co-existence of high intensity of HW and CW in the Rajasthan and Delhi region indicating high socio-ecological susceptibility. The findings of this study would be instrumental for regional priority planning and building adaptive capacity for combating the situation.

show abstract

Observed variability and trends in extreme temperature indices and rice–wheat productivity over two districts of Bihar, India—a case study

Cited by 12 publications

References 17 publications

Planting <em>Aman</em> Rice at Monsoon Onset Could Mitigate the Impact of Temperature Stress on Rice-Wheat Systems of Bihar, India

Planting <em>Aman</em> Rice at Monsoon Onset Could Mitigate the Impact of Temperature Stress on Rice-Wheat Systems of Bihar, India

Planting Rice at Monsoon Onset Could Mitigate the Impact of Temperature Stress on Rice–Wheat Systems of Bihar, India

Exploring heat and cold wave susceptible areas of India using consistency and frequency coupled novel approach

Contact Info

Product

Resources

About