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Current Forum: Week 9 Forum

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Date: 27-Mar-2001 09:25:00

Author: xxxxxxx

Subject: Fires 

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Elimination of fires, particularly uncontrolled fires, has been the goal of many people involved in agriculture. I remember as a small child gathering at a neighbor's house while about 20-25 men went to fight a prairie fire about 8 miles north of our home which had started as a result of lightning. About 320 acres were finally burned during that particular episode and I remember being puzzled by the concept of the fire being able to "jump the road." Recently, however, people have begun to see that fires can be beneficial to native ecosystems in Nebraska, particularly in areas of native prairie.

Fires can actually restore native prairie to a condition similar to its original state. Fires tend to eliminate non-native plant species, which allows native grasses and plants to thrive. In forested areas, fires can eliminate the leaf litter and weeds, which helps the grasses grow and thrive. It also provides a natural fertilizer for the remaining plants. This process of restoration creates an ecosystem that supports native birds and animals as well.

Fire recycles nutrients from the dead grass back into the soil. Without fire, trees and shrubs would take over. Many pastures in central Nebraska have too many cedar trees, which eventually take over and kill much of the grass. Fire burns off standing dead material allowing the sun to warm and dry the soil faster than in unburned sections. Burning allows nitrogen, water and other nutrients to penetrate to all layers of soil. These resources would not reach down to the roots if they were covered by dead vegetation.

I did a quick web search on prairie fires and found some very interesting information that is available about prairies located in the Midwest. The following web site has some interesting information about prairie restoration projects in Illinois: http://www.museum.state.il.us/muslink/prairie/htmls/pr_fire.html

This web site has excellent information about tall-grass prairies in Iowa. (Nebraska has mostly short-grass prairies, by the way!)
http://www.stonewbi.com/silos/mod1/index.shtml
http://www.stonewbi.com/silos/mod1/teachers/r_index.shtml
 


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Current Forum: Week 9 Forum

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Date: 27-Mar-2001 09:45:00

Author: xxxxxxxx

Subject: Re: Fires 

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Excellent 'fire' summary.
It's certainly true that some mis-guided folks trying to supress all forest fires actually caused more damage in the long run. As you say, controlled burns (done properly) actually help the forest ecosystem and allow optimum growth of valuable trees.
One of the major problems with short-grass fires is that erosion may become a big problem. With the right amount of precipitation, re-growth is quick plentiful. If dry conditions occur, wind is a problem. With too much water, the same is true. Particularly in the sandhills, the system is very fragile and recovery may involve 'praying' for some good luck.
 


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Current Forum: Week 9 Forum

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Date: 29-Mar-2001 22:37:00

Author: xxxxxxxx

Subject: Fires 

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Fire is often used to help replenish spent soil with natural nutrients. Fire is often necessary to help rid a forest of tree-killing "pests", eliminate deep forest litter, and possibly harmful forms of plant/animal virus and bacteria. There is an evergreen whose cones require fire to pass over them before the seed will be released. These may lie dormant on the forest floor for many years before they are touch by fire.
Praire (both tall and short grass) benefit from periodic burns. Once again adding natural nutrients back to the soil, and cleaning up what prairie grasses couldn't eliminate themselves. In our area the time between the fire and recovery is fragile. Because noxious weeds tend to recover more quickly than some of the natural grasses, they can become a problem. Erosion by both wind and water could be devastating to an area that has nothing to hold the soil in place.
Today, uncontrolled burns can be financially burdensome because of destruction of personal property, livestock, and wildlife habitat. Often times unwanted wild animals may end up in your barn or backyard because their limited living space has been destroyed by fire. (Yellowstone is an example) Fire (especially when it is controlled) can benefit both wildlife and agriculture.
 


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Current Forum: Week 9 Forum

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Date: 30-Mar-2001 18:09:00

Author: xxxxxxxxx

Subject: Re: Fires 

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Good comments about fire as an ag tool. You are exactly correct when you talk about the benefits and problems with fire. It is the old adage to much of a good thing is still to much. If you recall the sandhills fire 2 years ago, the results were dramatic. It made ranchers look for pasture to graze because they couldn't graze their own fire damaged land. The recovery can be good with the right conditions (rain, etc.) I do not know what happened with the sandhills fires after last year got dry. Have you heard or seen anything on this? 


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Current Forum: Week 9 Forum

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Date: 30-Mar-2001 20:33:00

Author: xxxxxxxxxxx

Subject: Fire Images 

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The impact of fire on the environment of course is initial devistatioin of vegetation and wildlife. From the photos here, one can see the burnt topography as well as some smoke. I'm not sure, but the white areas I'm guessing are water areas.

Fire is, as stated earlier, an initial devestation to natural vegetaion and wildlife,however it is also a natural "sanitizer" in that total regrowth is new and fresh. Farmers sometimes burn off fields to clear them. So, in that realm, fires can be useful in the agricultural sense. 


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Current Forum: Week 9 Forum

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Date: 31-Mar-2001 18:46:00

Author: xxxxxx

Subject: Re: Fire Images 

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xxxxxx,
You are right on with your thoughts on fires. I am not sure what the white areas are. They could be water or possibly clouds that are between the satellite and the ground. Thoughts?

You are right as well when you say that fire is a useful ag tool. There are great cautions when working with fire. The more resisiant the ecosystem the more useful fire is. In fragile ecosystems like the sandhills of NE fire can be devastating if the proper weather does not follow the burn. 


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Current Forum: Week 9 Forum

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Date: 31-Mar-2001 20:42:00

Author: xxxxxxxx

Subject: Fires and their effect on agriculture 

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Until this image, I had never thought of fire as being good. So I must say I have again learned something new this week. The Los Alamos images showed a blue area, which appeared to be a hot spot where the fire was still smoldering. The black areas looked like charred spots from where the fire had been. The white was perhaps snow, as I recall Los Alamos being at a high altitude.

Upon talking to a businessman this week about fire and that it could actually help soil, he related a personal experience to me. He was traveling through Kansas and came into a huge cloud of smoke. It was so thick he could not even see the end of his car. He had to pull over on the shoulder to drive because he feared driving into other vehicles on the regular roadway. After finally getting through, he inquired at the next town what was happening. He was told that the farmers burn off the grasslands every year. When they do, the grass comes back lush and green, providing grazing for the cattle. If the "burn" is not done, it will be a bad year the next season.

In addition to allowing the new grass to prosper, it is felt that nutrients are put back into the soil, such as potash. As usual, however, it all has to be done under control. Now that I think about it, I remember my father burning out the ditches when they became full of dried weeds and brush. I feel, now, that it probably helped the drainage in the spring, so that water would not stand in the fields and wash out the newly planted crops.
 


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Current Forum: Week 9 Forum

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Date: 01-Apr-2001 13:00:00

Author: xxxxxxxx

Subject: Re: Fires and their effect on agriculture 

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Good comments about fire and true as well. Fire can be a tool if used carefully. This is true with any tool (water, fertilizer, pesticides)

I am not sure what the white is...I have suggested clouds between the satellite and the ground. Thoughts.... 


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Current Forum: Week 9 Forum

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Date: 31-Mar-2001 20:46:00

Author: xxxxxxx

Subject: Clipart for our Webquests 

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Is anybody experiencing the same frustration as I? When I am searching for clipart, I feel I am in a "zoo" of cheap advertising. They tantalize me with captions about free clipart and I click and click and work my way through a maze, only to find a few pieces of any quality. Then there's more clicking and clicking. Any hints? 


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Current Forum: Week 9 Forum

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Date: 01-Apr-2001 12:57:00

Author: xxxxxxxxx

Subject: Re: Clipart for our Webquests 

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Here are some sites that I have used. The first 2 are free usage. The third is a searcher. The last art today has tons of stuff and is free for 3 days after registration.

http://www.farmpictures.com/
http://www.barrysclipart.com/
http://webplaces.com/search/

Below is art today. You have to register to use this site. (You register then they send you a password back) The site is then free for 3 days. You can only register once so I suggest registering and having a very good idea what you want so you can collect all the necessary images in one session. After the 3 day trial it costs money.

http://www.arttoday.com/PD-0025000/ 


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Current Forum: Week 9 Forum

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Date: 04-Apr-2001 19:41:00

Author: xxxxxxxxxx

Subject: Re: Clipart for our Webquests 

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Microsoft provides some nice clipart at:

dgl.microsoft.com

search for farm or agriculture and you should be able to download several images from that site. 


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Current Forum: Week 9 Forum

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Date: 08-Apr-2001 16:26:00

Author: xxxxxxx

Subject: Re: Clipart for our Webquests 

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One place to look for clip art is AltaVista.com Find the media and clip art links. You can put in a particular type of picture or image you want. I have been successful here at times because it is a metasearch. 


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Current Forum: Week 9 Forum

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Date: 31-Mar-2001 23:09:00

Author: xxxxxxxxx

Subject: Fire tool 

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The sand hills fire scar was great on the map. However, the Los Alamos did not work on the click with the mouse. Do not know if something was suppose to work on that or not. The sand hills are a very fragile environment for this due to the dry climate, etc. Have not heard about the past fire to see how that improve or what. However, normal prairie grass takes a long time to decay with the dry type environment. A good burn needs a lot of good conditions to get the maximun good out of it.

Niobrara did have a couple of fires last spring being set in the wetlands. Talking about black smoke and hard to reach. Main issues are the danger of the smoke crossing the road and the liability issue of a burn. Just do not know all the variables and a lot of people hours when doing such a thing.

On a fire area, it is neat to study it and compare that with the previous year growth. Usually better along with more insects as well. Especially grasshoppers in the pasture from previous years experience. Erosion could also be a factor if burned the wrong time. Also, remember the tumble weed. Heard from a bagage personal from the airport in St. Louis that he put a large tumbleweed on a plane once that came from Arizona. He mentioned that was the most unusal plant part that he ever dealt with. Imagine the spread of fire with that. During prairie fires are usually put out in a shelter belt if they are present from past experience. 


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Current Forum: Week 9 Forum

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Date: 01-Apr-2001 13:06:00

Author: xxxxxxx

Subject: Re: Fire tool 

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A couple of things....The Los Alamos fire images are not interactive. If you want larger images you can download them from week 9/assignments.

The tumbleweed can spread a tremendous amout of fire quickly. I have seen it. The weed gets on fire and the wind blows it along. Little fires start along the entire path until the weed burns so much that it cannot roll. The tumble weed or russian thisle is an invader plant and is not desirable for a lot of other reasons as well.

You are right.....under the correct conditions fire can revitalize ecosystems including insects. People often think that insects are pests but many times insects are necessary for healthy systems (flowers and plants are dependant on insects for polination)

Good comments.
 


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Current Forum: Week 9 Forum

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Date: 02-Apr-2001 21:38:00

Author: xxxxxxxx

Subject: Safety 

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Was wondering with the search engine if there is anything dealing with Ag safety. Tried them both out and both said no results, etc. If anyone knows anything about this if there is or not, it would be apprciated. Do not know if this computer is acting up or not. Do know that this does make it through so I thought I would try this angle. Especially when you check the previous farm web sites to see if anything was done on ag safety.
Thanks in advanced. 


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Current Forum: Week 9 Forum

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Date: 03-Apr-2001 12:27:00    (Original: 03-Apr-2001 12:23:00)

Author: xxxxxxx

Subject: Re: Safety 

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xxxxxxx,
There has not been a project on ag safety done, so you are in uncharted territory. Have you searched the internet for sites? Here are some links that were in the week 8 IOW on Ad Day. The resource one has links to other sites.

http://www.fs4jk.org/index2.html
http://www.fs4jk.org/
http://www.fs4jk.org/resource/ 


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Current Forum: Week 9 Forum

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Date: 03-Apr-2001 21:19:00

Author: xxxxxxx

Subject: Re: Safety 

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xxxxxxx

I came across a web site that you might be able to use; actually two. One is the Farm Bureau web site and the other is the Nebraska Cattleman's website. The Farm Bureau web site I think has a link to farm safety issues. I'm not sure why I remember that as I was looking for information on Foot and Mouth Disease!

Good Luck! xxxxxxx 


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Current Forum: Week 9 Forum

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Date: 08-Apr-2001 16:31:00

Author: xxxxxxxxx

Subject: Re: Safety 

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It is good to see the help students give to each other! 


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Current Forum: Week 9 Forum

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Date: 01-Apr-2001 17:39:00

Author: xxxxxxxxxx

Subject: Week 9 Forum  

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I found the fire pictures interesting in that they were such large areas in the image.I have been in controlled burns in the mountains of California, that did not stay controlled. Fire is a danger when it goes on its own. I do know that some pines need fire to open the cones to distribute seeds.I was out at Fort Robinson after the burn, and have seen the growth in areas people helped to replant.Prarie fires too have their place in the life cycles.
 


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Current Forum: Week 9 Forum

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Date: 04-Apr-2001 20:42:00

Author: xxxxxxxxx

Subject: Clip Art for Web Quests 

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Here are some other helpful websites that have some great artwork including animation:
http://www.arcadia.animations.com/whole.htm
http://www.gifworks.com
http://www.mediabuilder.com

I found some great cow pictures here!

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Current Forum: Week 9 Forum

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Date: 15-Apr-2001 19:09:00

Author: xxxxxxxx

Subject: Fires 

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I know that fire can be good for the environment. On my one and only visit to the Grand Canyon, they were doing a "controlled burn" and the smoke and smell were terrible near that part of the canyon. It was a little difficult to convince the tourists that it was necessary.

Obviously the problem is when nature is taking its natural course and the fires begin to move into areas where people have built homes. My sister recently relocated to Logan, Utah, and they had a brief scare there when the mountain behind her home started burning. Luckily, it did not cause any property damage and the mountain areas will grow back thicker and greener than before. 


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Current Forum: Week 9 Forum

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Date: 15-Apr-2001 21:57:00

Author: xxxxxxxxxx

Subject: Re: Fires 

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All true....nature does use fire as a regenerative tool. It is man and the entroachment on more and more wilderness that has an awful lot of monetary concerns. Especially in the dry areas of Calif.
 


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