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  4. »eUpdate 465 July 11th, 2014»Comparative Vegetation Condition Report: June 24 - July 7

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Department of Agronomy

Kansas State University

1712 Claflin Rd.

2004 Throckmorton PSC

Manhatan, KS 66506

785-532-6101

agronomy@ksu.edu

Extension Agronomy

Comparative Vegetation Condition Report: June 24 - July 7

K-State’s Ecology and Agriculture Spatial Analysis Laboratory (EASAL) produces weekly Vegetation Condition Report maps. These maps can be a valuable tool for making crop selection and marketing decisions.

Two short videos of Dr. Kevin Price explaining the development of these maps can be viewed on YouTube at:
http://www.youtube.com/watch?v=CRP3Y5NIggw
http://www.youtube.com/watch?v=tUdOK94efxc

The objective of these reports is to provide users with a means of assessing the relative condition of crops and grassland. The maps can be used to assess current plant growth rates, as well as comparisons to the previous year and relative to the 25-year average. The report is used by individual farmers and ranchers, the commodities market, and political leaders for assessing factors such as production potential and drought impact across their state.

NOTE TO READERS: The maps below represent a subset of the maps available from the EASAL group. If you’d like digital copies of the entire map series please contact NanAn at nanan@ksu.edu and we can place you on our email list to receive the entire dataset each week as they are produced. The maps are normally first available on Wednesday of each week, unless there is a delay in the posting of the data by EROSDataCenter where we obtain the raw data used to make the maps. These maps are provided for free as a service of the Department of Agronomy and K-State Research and Extension.

The maps in this issue of the newsletter show the current state of photosynthetic activity in Kansas, the Corn Belt, and the continental U.S., with comments from Mary Knapp, service climatologist:

Figure 1. The Vegetation Condition Report for Kansas for June 24 – July 7 from K-State’s Ecology and Agriculture Spatial Analysis Laboratory shows that the area of highest productivity is in the eastern third of the state. Increased photosynthetic activity can also be seen in parts of southwest Kansas where high rainfalls have been reported.

 

Figure 2. Compared to the previous year at this time for Kansas, the current Vegetation Condition Report for June 24 – July 7 from K-State’s Ecology and Agriculture Spatial Analysis Laboratory shows that statewide biomass production is higher. This is particularly notable in the Smoky River Valley.

Figure 3. Compared to the 25-year average at this time for Kansas, this year’s Vegetation Condition Report for June 24 – July 7 from K-State’s Ecology and Agriculture Spatial Analysis Laboratory shows that most of the state is close to average. Areas of extreme southwest Kansas, which have continued to miss out on the rain, continue to lag in biomass production.

Figure 4. The Vegetation Condition Report for the Corn Belt for June 24 – July 7 from K-State’s Ecology and Agriculture Spatial Analysis Laboratory shows that high biomass production dominates the Corn Belt. Most of western Kansas continues to stand out with lower NDVI values. This reflects the continued extreme drought in that area.

Figure 5. The comparison to last year in the Corn Belt for the period June 24 – July 7 from K-State’s Ecology and Agriculture Spatial Analysis Laboratory shows that the greatest departures can be seen in southeastern Missouri.

 

Figure 6. Compared to the 25-year average at this time for the Corn Belt, this year’s Vegetation Condition Report for June 24 – July 7 from K-State’s Ecology and Agriculture Spatial Analysis Laboratory shows that the central portion of the region has the biggest decrease in productivity. Excessive moisture has been an issue in this region.

 

Figure 7. The Vegetation Condition Report for the U.S. for June 24 – July 7 from K-State’s Ecology and Agriculture Spatial Analysis Laboratory shows that the highest NDVI values are centered on West Virginia. Southeastern Colorado and southwest Kansas, where drought continues, have lower values.

 

Figure 8. The U.S. comparison to last year at this time for the period June 24 – July 7 from K-State’s Ecology and Agriculture Spatial Analysis Laboratory shows that much of the country has an increased level of biomass production. Notable are the areas of decreased production in southeastern Missouri and in northern California.

Figure 9. The U.S. comparison to the 25-year average for the period June 24 – July 7 from K-State’s Ecology and Agriculture Spatial Analysis Laboratory shows that the Central Plains has above-average biomass production. There are noticeable areas of below-normal productivity to the east and west. To the east excessive moisture has created problems, while extended drought continues to depress production in southeastern Colorado into New Mexico and Arizona.

 

Mary Knapp, Weather Data Library
mknapp@ksu.edu     

Kevin Price, Professor Emeritus, Agronomy and Geography, Remote Sensing, GIS
kpprice@ksu.edu

NanAn, Graduate Research Assistant, Ecology & Agriculture Spatial Analysis Laboratory
(EASAL)
nanan@ksu.edu