Figure 12.24Erosion by water on cropland in 2012, in tons per acre per year. Considerable progress has been made in reducing erosion since 1982 (inset), but there are clearly broad areas where significant erosion still occurs. After USDA NRCS National Resources Inventory 2012. According to Figure 12.24, the state that is the worst for erosion rates in both 1982 and 2012 is IA (lowa) O FL (Florida) O IL (Illinois) NM (New Mexico)

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Question
Estimated Sheet and Rill Erosion Rates on Cropland, 2012
WA
Tons per Acre per Year
MN
ME
MT
ND
OR
so
NA
Cr
WY
PA
NE
co
OH
DE
NV
MD
KS
VA
NC
OK
MO
CA
Estimated Sheet and Rill
Erosion Rate an Cropland
0-0.5
0.6-1
1.1-1.5
1.6-2
21-25
2.6-3
3.1-3.5
3.6-4
4.1-4.5
4.6-5
5.1-6
6.1-7
71-8
8.1-9
9.1-10
10.1-11
11.1-12
12.1-13
Over 13
Error margin
exceeds estimate
Federal lands
Little or no cropland
Non-U.S. areas
Water bodies
Major rivers
NM
SC
AZ
AR
GA
MS.
TX
FL
nc ner acre per year.
Transcribed Image Text:Estimated Sheet and Rill Erosion Rates on Cropland, 2012 WA Tons per Acre per Year MN ME MT ND OR so NA Cr WY PA NE co OH DE NV MD KS VA NC OK MO CA Estimated Sheet and Rill Erosion Rate an Cropland 0-0.5 0.6-1 1.1-1.5 1.6-2 21-25 2.6-3 3.1-3.5 3.6-4 4.1-4.5 4.6-5 5.1-6 6.1-7 71-8 8.1-9 9.1-10 10.1-11 11.1-12 12.1-13 Over 13 Error margin exceeds estimate Federal lands Little or no cropland Non-U.S. areas Water bodies Major rivers NM SC AZ AR GA MS. TX FL nc ner acre per year.
Figure 12.24Erosion by water on cropland in 2012, in tons per acre per year.
Considerable progress has been made in reducing erosion since 1982 (inset), but
there are clearly broad areas where significant erosion still occurs.
After USDA NRCS National Resources Inventory 2012.
According to Figure 12.24, the state that is the worst for erosion rates in both 1982
and 2012 is
O IA (lowa)
OFL (Florida)
IL (Illinois)
NM (New Mexico)
Transcribed Image Text:Figure 12.24Erosion by water on cropland in 2012, in tons per acre per year. Considerable progress has been made in reducing erosion since 1982 (inset), but there are clearly broad areas where significant erosion still occurs. After USDA NRCS National Resources Inventory 2012. According to Figure 12.24, the state that is the worst for erosion rates in both 1982 and 2012 is O IA (lowa) OFL (Florida) IL (Illinois) NM (New Mexico)
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