Soil conservation

1,589 views

Published on

Ppt. on Soil Conservation

Published in: Education, Technology
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
1,589
On SlideShare
0
From Embeds
0
Number of Embeds
10
Actions
Shares
0
Downloads
113
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Soil conservation

  1. 1. Soil Conservation
  2. 2. Why is soil conservationimportant?
  3. 3. Sheet erosion is the removal ofthe thin layer of topsoil byraindrop splash or water run-off.
  4. 4. Wind erosion is the detachmentand movement of soil by wind.
  5. 5. Gully erosion occurs when small streams uniteand create a stronger flow, cutting a channeldown which water flows during or just after rain
  6. 6. The soils of our planet haveformed over thousands of yearsin conditions which have longsince changed. The destructionof soils through mans misuse,however, can take place in just afew years, and in most cases thisprocess is permanent or at best isdifficult to correct.
  7. 7. The most critical factorin protecting soils fromerosion by water andwind is themaintenance of cover(plant residues, pastureand forest litter) inclose contact with thesoil surface.
  8. 8. Practice:* contour plowing* reduced tillage or no tillage,* using windbreaks to reducewind speeds at the landsurface,* allowing soils to rest* promote humus production
  9. 9. Here are some additional resources on the webhttp://www.hintze-online.com/sos/soils-online.htmlhttp://nscss.org/ssource.htmlhttp://www.bsyse.wsu.edu/~saxton/soilwatr/If you have questions, comments, please send tobbatke@worldnet.att.net

×