Global Warming To Chill Crops

Scientists from Agriculture and Agri-Food Canada predict crops will be at a greater risk of winter damage in the future even though the climate will be warmer. Perennial forage crops are grown on more than 40% of the cultivated land in Eastern Canada and other regions of North America, where they constitute the backbone of the livestock industry. The study of the impact of this significant warming trend is published in the September-October issue of Agronomy Journal, published by the American Society of Agronomy.

The loss of snow cover due to warmer winter conditions will increase exposure of plants to freezing temperatures. The authors also conclude that the occurrence of above-freezing temperatures and loss of cold hardiness will increase with climate warming. Forage crops are also likely to enter the winter in a lower state of cold hardiness due to warmer fall temperatures. Winter temperatures are expected to increase by 2 to 6 degrees C over the next 50 years in Eastern Canada; however, survival of perennial crops over the winter months requires the right climatic conditions. Sub-freezing temperature, loss of cold hardiness due to warm periods, ice encasement, and soil heaving can result in frequent crop losses.

Gilles Bélanger, project leader, said, “This might be a surprise to many that warmer winter conditions will mean greater risks to perennial forage crops. Perennial forage crops in Canada and in the northern part of the United States prefer the comfort of a nice snow cover after a good rest period in the fall. Rain, ice, and no snow cover in the middle of the winter will occur more often in the future; this brings no comfort to perennial forage crops.”

For this study, conducted from 1999 to 2001, scientists developed agro-climatic indices related to the effect of climate conditions on winter survival of perennial forage crops. These agro-climatic indices were then calculated for current conditions (1961-90) and two future periods (2010-39, 2040-69). Sixty-nine climatic stations located in all agricultural areas of Eastern Canada were used.

For forage producers, climate change will mean increased risks in an agricultural industry already facing major challenges. The authors of the study, however, are confident that current and future research efforts in the development of improved cultivars and the adaptation of management practices will help producers make the best of climate change.

Comments are closed.

Type-C USB Multimeter Current Mete Voltage Meter Digital Tester Detector Tester picture

Type-C USB Multimeter Current Mete Voltage Meter Digital Tester Detector Tester

$17.57



GFCI Voltage Outlet Smart Tester picture

GFCI Voltage Outlet Smart Tester

$15.19



NEW-Fluke 1AC II VoltAlert Non-Contact Voltage Tester- CAT IV Rating,90-1000V AC picture

NEW-Fluke 1AC II VoltAlert Non-Contact Voltage Tester- CAT IV Rating,90-1000V AC

$20.80



USB Type-C Meter Tester Digital Multimeter Current Voltage Power Detector +Cable picture

USB Type-C Meter Tester Digital Multimeter Current Voltage Power Detector +Cable

$20.48



Fluke 2AC Alert Voltage Tester picture

Fluke 2AC Alert Voltage Tester

$18.14



NEW AC Voltage Protector Brownout Surge Refrigerator 1875 Watt Appliance 2 Pack picture

NEW AC Voltage Protector Brownout Surge Refrigerator 1875 Watt Appliance 2 Pack

$24.95



Type-C USB Tester Capacity Voltmeter Current Meter Charge Ammeter Power Voltage picture

Type-C USB Tester Capacity Voltmeter Current Meter Charge Ammeter Power Voltage

$13.29



12V Digital LED Display Voltmeter Voltage Gauge Panel Meter Car Motorcycle  picture

12V Digital LED Display Voltmeter Voltage Gauge Panel Meter Car Motorcycle

$7.72



AC Voltage Current Power Meter Single Phase Household Smart Watt Hour Meter NEW picture

AC Voltage Current Power Meter Single Phase Household Smart Watt Hour Meter NEW

$20.99



AVR SX460 Automatic Voltage Volt Regulator Replacement For Stamford Generator picture

AVR SX460 Automatic Voltage Volt Regulator Replacement For Stamford Generator

$17.99



Powered by WordPress. Designed by WooThemes