Download or read book Responsiveness of Crop Yield and Acreage to Prices and Climate written by Madhu Khanna and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: We investigate the effect of crop price and climate variables on rainfed corn and soybean yields and acreage in the United States using a large panel dataset for the 1977-2007 period. Instrumental variables are used to control for endogeneity of prices in yield and acreage regressions, while allowing for spatially auto-correlated errors. We find that an increase in corn price has a statistically significant positive impact on corn yield, but the effect of soybean price on soybean yields is not statistically significant. The estimated price elasticities of corn yield and acreage are 0.23 and 0.45, respectively. Of the increase in corn supply caused by an increase in corn price, we find that 33.8% is due to price-induced yield enhancement and 66.2% is due to price-induced acreage expansion. We also find that the impact of climate change on corn production ranges from -7% to -41% and on soybean ranges from -8% to -45%, depending on the climate change scenarios, time horizon, and global climate models used to predict climate change. We show that the aggregate net impact of omitting price variables is an overestimation of the effect of climate change on corn yield by up to 9% and on soybean yield by up to 15%.

Download or read book Food Price Volatility and Its Implications for Food Security and Policy written by Matthias Kalkuhl and published by Springer. This book was released on 2016-04-12 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides fresh insights into concepts, methods and new research findings on the causes of excessive food price volatility. It also discusses the implications for food security and policy responses to mitigate excessive volatility. The approaches applied by the contributors range from on-the-ground surveys, to panel econometrics and innovative high-frequency time series analysis as well as computational economics methods. It offers policy analysts and decision-makers guidance on dealing with extreme volatility.

Download or read book Simulated Vs Empirical Weather Responsiveness of Crop Yields written by Malcolm N. Mistry and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Climate Change Effect on Crop Productivity written by Rakesh S. Sengar and published by CRC Press. This book was released on 2014-11-13 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore the Relationship between Crop and Climate Agricultural sustainability has been gaining prominence in recent years and is now becoming the focal point of modern agriculture. Recognizing that crop production is very sensitive to climate change, Climate Change Effect on Crop Productivity explores this timely topic in-depth. Incorporating contributions by expert scientists, professors, and researchers from around the world, it emphasizes concerns about the current state of agriculture and of our environment. This text analyzes the global consequences to crop yields, production, and risk of hunger linking climate and socioeconomic scenarios. Addresses Biotechnology, Climate Change, and Plant Productivity The book contains 19 chapters covering issues such as CO2, ozone on plants, productivity fertilization effect, UV (ultraviolet) radiation, temperature, and stress on crop growth. The text discusses the impact of changing climate on agriculture, environment stress physiology, adaptation mechanism, climate change data of recent years, impact of global warming, and climate change on different crops. It explores the overall global picture in terms of the effect of crops to climate change during abiotic stress and considers strategies for offsetting and adapting to ongoing climate change. Details how and why climate change occurs and how it effects crop productivity and agriculture Considers what measures should be taken to mitigate the effect of climate change on agriculture Highlights the effect of climate change on crop productivity, the invention of new technology, and strategies for agriculture practice to adapt to climate change Provides an analysis of the global warming effect on crop productivity due to climate change and long-term agriculture technique development Confirms the asymmetry between potentially severe agricultural damages such as the effect on crop yield due to variation in temperature Reports on the results of experiments to assess the effects of global climate change on crop productivity An asset to agriculturists, environmentalists, climate change specialists, policy makers, and research scholars, Climate Change Effect on Crop Productivity provides relevant information and opportunities for productive engagement and discussion among government negotiators, experts, stakeholders, and others concerned about climate change and agriculture.

Download or read book Climate Fluctuations and Improved Climate Information in International Grain Markets written by Daniel George Hallstrom and published by . This book was released on 1999 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Worldwide Acreage and Yield Response to International Price Change and Volatility written by Mekbib Haile and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This article estimates a worldwide aggregate supply response for key agricultural commodities -- wheat, rice, corn, and soybeans -- by employing a newly-developed multi-country, crop-calendar-specific, seasonally disaggregated model with price changes and price volatility applied accordingly. The findings reveal that, although higher output prices serve as an incentive to improve global crop supply as expected, output price volatility acts as a disincentive. Depending on the crop, the results show that own-price supply elasticities range from about 0.05 to 0.40. Output price volatility, however, has negative correlations with crop supply, implying that farmers shift land, other inputs, and yield-improving investments to crops with less volatile prices. Simulating the impact of price dynamics since 2006, we find that price risk has reduced the production response of wheat in particular -- and to a lesser extent, rice -- thus dampening price incentive effects. The simulation analysis shows that the increase in own-crop price volatility from 2006-2010 dampened yield by about 1-2% for the crops under consideration.

Download or read book Agriculture The Potential Consequences of Climate Variability and Change for the United States written by John M. Reilly and published by Cambridge University Press. This book was released on 2002-06-24 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publisher Description

Download or read book American Agriculture Water Resources and Climate Change written by Gary D. Libecap and published by University of Chicago Press. This book was released on 2024-01-10 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: A collection of the most advanced and authoritative agricultural-economic research in the face of increasing water scarcity. Agriculture has been critical in the development of the American economy. Except in parts of the western United States, water access has not been a critical constraint on agricultural productivity, but with climate change, this may no longer be the case. This volume highlights new research on the interconnections between American agriculture, water resources, and climate change. It examines climatic and geologic factors that affect the agricultural sector and highlights historical and contemporary farmer responses to varying conditions and water availability. It identifies the potential effects of climate change on water supplies, access, agricultural practices, and profitability, and analyzes technological, agronomic, management, and institutional adjustments. Adaptations such as new crops, production practices, irrigation technologies, water conveyance infrastructure, fertilizer application, and increased use of groundwater can generate both social benefits and social costs, which may be internalized with various institutional innovations. Drawing on both historical and present experiences, this volume provides valuable insights into the economics of water supply in American agriculture as climate change unfolds.

Download or read book Maximizing Crop Yields written by N. K. Fageria and published by CRC Press. This book was released on 1992-03-27 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Details the physiological, agronomical, and environmental factors needed to maintain or increase the productivity and sustainability of agricultural systems. Addressed to scientists in the agriculture industry, and graduate and advanced undergraduate students, rather than to farmers. Explores the ba

Download or read book From Observations to Predictions and Projections Opportunities and Challenges for Climate Risk Assessment and Management in Sub Saharan Africa written by Joerg Helmschrot and published by Frontiers Media SA. This book was released on 2022-12-06 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Climate Change and Crop Production written by Matthew P. Reynolds and published by CABI. This book was released on 2010 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trends in population growth suggest that global food production is unlikely to satisfy future demand under predicted climate change scenarios unless rates of crop improvement are accelerated. This book provides an overview of the essential disciplines required for sustainable crop production in unpredictable environments.

Download or read book Crop Adaptation to Climate Change written by Shyam Singh Yadav and published by John Wiley & Sons. This book was released on 2011-08-02 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: A major task of our time is to ensure adequate food supplies for the world's current population (now nearing 7 billion) in a sustainable way while protecting the vital functions and biological diversity of the global environment. The task of providing for a growing population is likely to be even more difficult in view of actual and potential changes in climatic conditions due to global warming, and as the population continues to grow. Current projections suggest that the world's temperatures will rise 1.8-4.0 by 2100 and population may reach 8 billion by the year 2025 and some 9 billion by mid-century, after which it may stabilize. This book addresses these critical issues by presenting the science needed not only to understand climate change effects on crops but also to adapt current agricultural systems, particularly in regard to genetics, to the changing conditions. Crop Adaptation to Climate Change covers a spectrum of issues related to both crops and climatic conditions. The first two sections provide a foundation on the factors involved in climate stress, assessing current climate change by region and covering crop physiological responses to these changes. The third and final section contains chapters focused on specific crops and the current research to improve their genetic adaptation to climate change. Written by an international team of authors, Crop Adaptation to Climate Change is a timely look at the potentially serious consequences of climate change for our global food supply, and is an essential resource for academics, researchers and professionals in the fields of crop science, agronomy, plant physiology and molecular biology; crop consultants and breeders; as well as climate and food scientists.

Download or read book Climate Change Crop Yields and Internal Migration in the United States written by Shuaizhang Feng and published by . This book was released on 2012 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: We investigate the link between agricultural productivity and net migration in the United States using a county-level panel for the most recent period of 1970-2009. In rural counties of the Corn Belt, we find a statistically significant relationship between changes in net outmigration and climate-driven changes in crop yields, with an estimated semi-elasticity of about -0.17, i.e., a 1% decrease in yields leads to a 0.17% net reduction of the population through migration. This effect is primarily driven by young adults. We do not detect a response for senior citizens, nor for the general population in eastern counties outside the Corn Belt. Applying this semi-elasticity to predicted yield changes under the B2 scenario of the Hadley III model, we project that, holding other factors constant, climate change would on average induce 3.7% of the adult population (ages 15-59) to leave rural counties of the Corn Belt in the medium term (2020-2049) compared to the 1960-1989 baseline, with the possibility of a much larger migration response in the long term (2077-2099). Since there is uncertainty about future warming, we also present projections for a range of uniform climate change scenarios in temperature or precipitation.

Download or read book Impacts of Climate Change and Agricultural Managements on Major Global Cereal Crops written by Xuhui Wang and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Croplands accounts for one-fifth of global land surface, providing calories for human beings and altering the global biogeochemical cycle and land surface energy balance. The response of croplands to climate change and intensifying human managements is of critical importance to food security and sustainability of the environment. The present manuscript of thesis utilizes various types of data sources (yield statistics, long-term agrometeorological observations, field warming experiments, data-driven global datasets, gridded historical climate dataset and projected climate change) and also modelling approaches (statistical model vs. process model). It presents a series of detection and attribution studies exploring how crop phenology and crop yield respond to climate change and some management practices at regional and global scales, according to data availability. In Chapter 2, a statistical model is constructed with prefecture-level yield statistics and historical climate observations over Northeast China. There are asymmetrical impacts of daytime and nighttime temperatures on maize yield. Maize yield increased by 10.0±7.7% in response to a 1 oC increase of daily minimum temperature (Tmin) averaged in the growing season, but decreased by 13.4±7.1% in response to a 1 oC warming of daily maximum temperature (Tmax). There is a large spatial variation in the yield response to Tmax, which can be partly explained by the spatial gradient of growing season mean temperature (R=-0.67, P0.01). The response of yield to precipitation is also dependent on moisture conditions. In spite of detection of significant impacts of climate change on yield variations, a large portion of the variations is not explained by climatic variables, highlighting the urgent research need to clearly attribute crop yield variations to change in climate and management practices. Chapter 3 presents the development of a Bayes-based optimization algorithm that is used to optimize key parameters controlling phenological development in ORCHIDEE-crop model for discriminating effects of managements from those of climate change on rice growth duration (LGP). The results from the optimized ORCHIDEE-crop model suggest that climate change has an effect on LGP trends, but with dependency on rice types. Climate trends have shortened LGP of early rice (-2.0±5.0 day/decade), lengthened LGP of late rice (1.1±5.4 day/decade) and have little impacts on LGP of single rice (-0.4±5.4 day/decade). ORCHIDEE-crop simulations further show that change in transplanting date caused widespread LGP change only for early rice sites, offsetting 65% of climate-change-induced LGP shortening. The primary drivers of LGP change are thus different among the three types of rice. Management is predominant driver of LGP change for early and single rice. This chapter demonstrated the capability of the optimized crop model to represent complex regional variations of LGP. Future studies should better document observational errors and management practices in order to reduce large uncertainties that exist in attribution of LGP change and to facilitate further data-model integration. In Chapter 4, a harmonized data set of field warming experiments at 48 sites across the globe for the four most-widely-grown crops (wheat, maize, rice and soybean) is combined with an ensemble of gridded global crop models to produce emergent constrained estimates of the responses of crop yield to changes in temperature (ST). The new constraining framework integrates evidences from field warming experiments and global crop modeling shows with 95% probability that warmer temperatures would reduce yields for maize (-7.1±2.8% K-1), rice (-5.6±2.0% K-1) and soybean (-10.6±5.8% K-1). For wheat, ST was less negative and only 89% likely to be negative (-2.9±2.3% K-1). The field-observation based constraints from the results of the warming experiments reduced uncertainties associated with modeled ST by 12-54% for the four crops.

Download or read book Response of Crop Yield to Predicted Changes in Climate and Atmospheric CO2 Using Simulation written by R.B. Curry and published by . This book was released on 1989 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Looking Beyond the Horizon written by William R. Sutton and published by World Bank Publications. This book was released on 2013-04-04 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: The risks and opportunities of climate change for agriculture can be effectively dealt only by aligning policies, developing institutional capabilities, and investing in infrastructure and farms, as per the experiences of Albania, FYR Macedonia, Moldova, and Uzbekistan.

Download or read book Climate Change and World Agriculture written by Martin L. Parry and published by Routledge. This book was released on 2019-10-29 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published in 1990, this book analysed the sensitivity of the world food system and looked at the variety of ways in which it would be affected by climate change. It describes the effects of climate change on agriculture, estimates the impacts on plant and animal growth and looks at the geographical limits to different types of farming. It also considers the range of possible ways to adapt agriculture and so to mitigate the disastrous consequences of climate change.