drought calculator
DESCRIPTION
Drought Calculator. Arnold Norman, NRCS Fort Worth, TX Gale Dunn, ARS Fort Collins, CO Megan Christensen, ARS Fort Collins NDSU Research Ext. Centers ARS-Mandan, Miles City. Monthly Precip . Plant Growth Curves Long Term monthly Precip . Growth Model or Long Term research. Temperature - PowerPoint PPT PresentationTRANSCRIPT
Drought Calculator
• Arnold Norman, NRCS Fort Worth, TX• Gale Dunn, ARS Fort Collins, CO• Megan Christensen, ARS Fort Collins• NDSU Research Ext. Centers• ARS-Mandan, Miles City
• Monthly Precip.• Plant Growth Curves• Long Term monthly Precip.• Growth Model or Long Term research
• Temperature• Timing and Intensity of precip.• 75% Accuracy
• Forage Growth potential
Carry-Over Potential
• One year-Less than 50% correlation• Several years-negative effect• Carry-over not used by Drought Calculator
Rainfall and Forage Growth
J F M A M J J A S O N D0
0.5
1
1.5
2
2.5
3
3.5
4
growthrainfall
• Half of normal March-June• 5 inches in July…too late
Drought Plan
• Protect the Resource• Implement a grazing system• Develop Water• Monitor at Critical Dates• Prepare to sell down• Accept it…Drought Happens
http://www.nrcs.usda.gov/wps/portal/nrcs/site/nd/home/