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Elements of Agriculture

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    Available in PDF Format | Elements of Agriculture.pdf | Unknown
    James Bolton McBryde
Excerpt from book: CHAPTER III.—Rain 13. Work of Rain.—We learned in the last chapter how rain clouds are formed: so now it is in order to consider the work done by the falling of these clouds as rain. Besides supplying water for our own use and for the needs of our animals and crops, what does the rain do on a farm? 14. Erosion, Land Washing.—Did you ever notice how muddy all the creeks and rivers are after a heavy rain, and did you ever stop to think where all this mud comes from and where it is going? The gullies in the hillsides should tell you where the mud comes from: the sand bars and islands in the rivers and creeks tell you where part of it has gone. The next time it rains notice how the raindrops gather in low places into little streams of water, which carry away particles of soil and trash. As the rain becomes harder, more and more water gathers in these little streams, and more particles are moved along by them. These small particles of soil and pieces of gravel rushed along by the water grind each other into smaller fragments, loosen other particles from the soil, and so a gully grows in the hillside. This making of gullies is called Erosion. 15. Sediment.—Now, where does the water carry the soil and trash which it takes from the hillsides? Follow one of these little streams of water and you will see that where it reaches level ground it moves more slowlyand drops most of the soil and trash which it is carrying. But it is still muddy from the fine particles which do not settle. These it takes to the nearest creek, which in turn takes them on to some river, which takes them to a sea or lake, and here they finally settle to a resting place in its bed. The particles of soil and trash carried by the water are called Sedimknt, and when this settles out from water it is said to be de...  
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  • PDF | 208 pages
  • James Bolton McBryde
  • General Books LLC
  • Unknown
  • 4
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