Impacts of Present and Future Climate Change and Climate Variability on Agriculture in the Temperate Regions: North America

Motha, Raymond P.; Baier, W.

doi:10.1007/s10584-005-5940-1

Cited by 89 publications

(46 citation statements)

References 12 publications

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“…The models also agree that much of the Southeast and West will experience reductions in precipitation and increases in drought severity and duration. These changes will have dramatic effects on agricultural production (Motha and Baier 2005).…”

Section: The Case Of the Southern Great Plains Of The Usamentioning

confidence: 99%

Plant drought survival under climate change and strategies to improve perennial grasses. A review

Norton¹,

Malinowski²,

Volaire

2016

Agron. Sustain. Dev.

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The three cool-season perennial forage grasses cocksfoot/orchardgrass, Dactylis glomerata L., tall fescue, Festuca arundinacea Schreb. syn. Lolium arundinaceum (Schreb.) Darbysh., and phalaris/harding grass, Phalaris aquatica L., are of major economic and ecological importance in regions with summer-dry environments. This review considers the constraints that these species are likely to experience under current and predicted increase of droughts due to climate change scenarios in south-eastern Australia, the southern Great Plains of USA and the Western Mediterranean Basin. The review identifies research required to maximise the development and use of C3 cool-season grasses with enhanced resilience to drought while considering the concern of some regulators that these grasses may be potential weeds. The state of knowledge of factors influencing plant drought survival and therefore recovery after stress and long-term persistence is discussed in the light of adaptive strategies. The major research needs identified to enhance traits conferring drought survival include (1) increasing the depth and density of grass root systems to strengthen dehydration avoidance; (2) exploring the biochemical, molecular and hydraulic bases of dehydration tolerance and improving techniques to measure this trait; (3) breaking the trade-off between summer dormancy and forage yield potential and improving understanding of environmental, biochemical and genetic controls over summer dormancy; (4) identifying non-toxic endophyte strains compatible with summer-dormant cultivars of tall fescue to enhance drought survival; and (5) enhancing seed production capability of new cultivars as well as the development of agronomic management packages for promoting stable mixtures combining perennial grasses and legumes. The weed potential of newly introduced summer-dormant cultivars is concluded to be minor. The research directions proposed here should improve pasture grass resilience and forage crop sustainability in Mediterranean and temperate summer-dry environments under the future drier and warmer conditions associated with climate change.

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Section: The Case Of the Southern Great Plains Of The Usamentioning

confidence: 99%

Plant drought survival under climate change and strategies to improve perennial grasses. A review

Norton¹,

Malinowski²,

Volaire

2016

Agron. Sustain. Dev.

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“…Climate change poses a major threat not only to agricultural productivity but also to the capacity of agricultural systems to provide diverse ES 15,16 . In recent decades, an emphasis of agronomic research has been the development of technologies for maintaining crop yields under future climates, for example, by increasing external inputs, crop breeding or genetic engineering [17][18][19] . However, these approaches often do not consider the importance of concomitantly sustaining the diverse ES of agricultural landscapes 20 .…”

Section: Introductionmentioning

confidence: 99%

Targeting perennial vegetation in agricultural landscapes for enhancing ecosystem services

Asbjornsen

Hernández‐Santana

Liebman

et al. 2013

Renew. Agric. Food Syst.

235

168

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Over the past century, agricultural landscapes worldwide have increasingly been managed for the primary purpose of producing food, while other diverse ecosystem services potentially available from these landscapes have often been undervalued and diminished. The incorporation of relatively small amounts of perennial vegetation in strategic locations within agricultural landscapes dominated by annual crops-or perennialization-creates an opportunity for enhancing the provision of a wide range of goods and services to society, such as water purification, hydrologic regulation, pollination services, control of pest and pathogen populations, diverse food and fuel products, and greater resilience to climate change and extreme disturbances, while at the same time improving the sustainability of food production. This paper synthesizes the current scientific theory and evidence for the role of perennial plants in balancing conservation with agricultural production, focusing on the Midwestern USA as a model system, while also drawing comparisons with other climatically diverse regions of the world. Particular emphasis is given to identifying promising opportunities for advancement and critical gaps in our knowledge related to purposefully integrating perennial vegetation into agroecosystems as a management tool for maximizing multiple benefits to society. AbstractOver the past century, agricultural landscapes worldwide have increasingly been managed for the primary purpose of producing food, while other diverse ecosystem services potentially available from these landscapes have often been undervalued and diminished. The incorporation of relatively small amounts of perennial vegetation in strategic locations within agricultural landscapes dominated by annual crops-or perennialization-creates an opportunity for enhancing the provision of a wide range of goods and services to society, such as water purification, hydrologic regulation, pollination services, control of pest and pathogen populations, diverse food and fuel products, and greater resilience to climate change and extreme disturbances, while at the same time improving the sustainability of food production. This paper synthesizes the current scientific theory and evidence for the role of perennial plants in balancing conservation with agricultural production, focusing on the Midwestern USA as a model system, while also drawing comparisons with other climatically diverse regions of the world. Particular emphasis is given to identifying promising opportunities for advancement and critical gaps in our knowledge related to purposefully integrating perennial vegetation into agroecosystems as a management tool for maximizing multiple benefits to society.

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“…In addition, the changes of land use, such as urban expansion, deforestation and declining area of water bodies, will also influence the intensity and distribution of UHI [14]. Besides, Motha and Baier [15] pointed out that warming trend caused by the urbanization was even more than the change of regional climate background. All of the above views can indicate that urbanization has the great impact on urban climate.…”

Section: Introductionmentioning

confidence: 99%

Temperature Change of Shanghai and Its Response to Global Warming and Urbanization

Chu

Qiu

2016

Atmosphere

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Shanghai is the biggest metropolis in China, and its local temperature change is affected not only by global warming but also by urbanization. Integrating the Mann-Kendall test, EMD (Empirical Mode Decomposition), Cross Wavelet Analysis and statistical methods, we studied the response of the local temperature change in Shanghai to global warming and urbanization. The results indicate that the local temperature at Shanghai present a significant warming trend under the background of global warming over the past 135 years. The local temperature at Shanghai displays 2-year, 6-year, 15-year, 23-year and 68-year periodic fluctuation, whereas global temperature shows 4-year, 9-year, 15-year, 23-year and 68-year cyclic variation. Although the two cycles are not exactly the same, they show some comparability. Urbanization facilitated the warming process of Shanghai. In the most recent 50 years, temperature difference between urban and suburban Shanghai has increased nearly 0.4 • C. The related indicators of urban development, such as population, built-up area, Gross Domestic Product (GDP), energy consumption and number of vehicles show significantly positive correlation with the temperature difference between urban and suburban area. In addition, the frequency of extreme high temperature has become higher, whereas the frequency of extreme low temperature has become lower over the most recent 55 years.

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Impacts of Present and Future Climate Change and Climate Variability on Agriculture in the Temperate Regions: North America

Cited by 89 publications

References 12 publications

Plant drought survival under climate change and strategies to improve perennial grasses. A review

Plant drought survival under climate change and strategies to improve perennial grasses. A review

Targeting perennial vegetation in agricultural landscapes for enhancing ecosystem services

Temperature Change of Shanghai and Its Response to Global Warming and Urbanization

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