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Sources of Newly Developed Land, by Region

Estimates presented here are based upon the latest information from the National Resources Inventory (NRI). The NRI is a longitudinal sample survey based upon scientific statistical principles and procedures. It is conducted by the U.S. Department of Agriculture’s Natural Resources Conservation Service (NRCS), in cooperation with Iowa State University’s Center for Survey Statistics and Methodology. These results are based upon the 2007 NRI, which provides nationally consistent data for the 25-year period 1982–2007. Estimates here cover the contiguous 48 states. Separate estimates include Hawaii, Alaska, and the Caribbean.

Margins of error are reported for each NRI estimate and must be considered at all scales of analysis. The margin of error is used to construct the 95 percent confidence interval for the estimate. The lower bound of the interval is obtained by subtracting the margin of error from the estimate; the upper bound is obtained by adding the margin of error to the estimate. A 95 percent confidence interval means that in repeated samples from the same population, 95 percent of the time the true underlying population parameter will be contained within the lower and upper bounds of the interval.

Table 31. Sources of Newly Developed Land, by Farm Production Region, in Thousands of Acres, with Margins of Error
Region Year Cropland Pastureland Rangeland Forest Land All Other Total
Appalachian 1982 to 1987 243.0
±25.4
230.3
±36.9
0.0
--
634.5
±54.4
25.8
±7.2
1,133.6
±64.6
1987 to 1992 290.8
±27.8
264.3
±45.5
0.0
--
629.4
±41.8
25.1
±5.7
1,209.6
±76.4
1992 to 1997 348.1
±23.3
381.9
±44.7
0.0
--
919.0
±57.6
64.1
±12.9
1,713.1
±86.9
1997 to 2002 283.6
±41.9
315.4
±52.0
0.0
--
1,000.7
±82.4
30.2
±11.0
1,629.9
±98.6
2002 to 2007 193.5
±39.8
194.0
±41.2
0.0
--
660.9
±63.0
33.3
±10.4
1,081.7
±95.1
1982 to 2007 1,475.5
±101.7
1,384.5
±115.8
0.0
--
3,753.3
±186.4
154.6
±19.3
6,767.9
±267.9
Corn Belt 1982 to 1987 379.0
±47.4
103.4
±17.7
0.0
--
155.0
±22.1
14.6
±4.8
652.0
±58.7
1987 to 1992 323.8
±38.7
112.5
±20.0
0.0
--
197.6
±24.4
21.0
±6.9
654.9
±50.0
1992 to 1997 573.7
±43.8
188.9
±18.9
0.0
--
299.4
±29.7
59.8
±19.9
1,121.8
±70.0
1997 to 2002 348.5
±63.0
147.8
±26.8
0.1
±0.5
223.7
±43.2
34.6
±13.5
754.7
±97.6
2002 to 2007 297.0
±55.1
138.2
±41.9
0.0
--
252.3
±47.4
21.4
±6.7
708.9
±111.1
1982 to 2007 2,008.0
±141.3
699.4
±82.8
0.2
±153.4
1,060.3
±93.1
124.4
±29.8
3,892.3
±270.9
Delta States 1982 to 1987 78.6
±12.8
65.3
±12.4
1.4
±2.2
130.3
±22.1
3.8
±2.8
279.4
±28.1
1987 to 1992 53.8
±9.5
69.6
±17.0
0.4
±0.5
141.2
±17.8
2.8
±1.5
267.8
±28.7
1992 to 1997 117.2
±21.8
132.1
±24.6
2.3
±2.2
274.3
±39.6
11.4
±4.0
537.3
±56.8
1997 to 2002 64.4
±19.9
140.1
±28.8
1.1
±3.8
279.5
±52.1
13.2
±5.4
498.3
±62.5
2002 to 2007 53.4
±17.7
105.2
±22.5
3.5
±13.7
250.2
±47.2
13.1
±3.5
425.4
±55.6
1982 to 2007 433.5
±46.9
515.9
±58.9
8.7
±18.8
1,012.2
±102.4
37.9
±8.5
2,008.2
±126.4
Lake States 1982 to 1987 180.6
±29.5
85.5
±19.0
0.0
--
184.6
±25.0
17.0
±6.3
467.7
±36.5
1987 to 1992 210.8
±26.5
105.5
±22.4
0.0
--
204.7
±38.6
11.4
±4.1
532.4
±47.3
1992 to 1997 340.2
±31.0
122.6
±24.5
0.0
--
300.8
±42.5
43.0
±13.3
806.6
±61.4
1997 to 2002 239.5
±38.3
111.3
±33.2
0.0
--
244.4
±42.8
27.6
±14.9
622.8
±63.5
2002 to 2007 201.3
±30.3
66.0
±20.7
0.0
--
197.8
±39.7
16.4
±5.4
481.5
±47.0
1982 to 2007 1,217.1
±82.3
494.5
±76.2
0.0
--
1,096.7
±99.7
102.7
±24.8
2,911.0
±159.6
Mountain 1982 to 1987 167.9
±55.0
47.2
±12.9
292.8
±85.6
59.1
±33.8
24.2
±17.7
591.2
±118.7
1987 to 1992 118.6
±29.4
58.1
±21.3
237.6
±62.6
67.5
±27.3
31.5
±19.3
513.3
±75.2
1992 to 1997 165.1
±31.1
70.8
±19.9
344.2
±76.4
58.5
±22.1
33.9
±14.2
672.5
±85.5
1997 to 2002 239.5
±84.5
55.4
±17.7
625.1
±211.7
173.2
±108.6
52.5
±39.0
1,145.7
±304.4
2002 to 2007 214.3
±74.6
69.2
±59.6
494.8
±136.0
55.9
±15.3
13.2
±5.0
847.4
±192.0
1982 to 2007 1,011.4
±166.1
265.3
±90.7
1,978.5
±351.0
400.9
±121.1
114.0
±42.7
3,770.1
±487.1
Northeast 1982 to 1987 244.2
±34.1
100.7
±14.0
0.0
--
586.4
±38.5
26.0
±7.3
957.3
±42.4
1987 to 1992 265.2
±19.2
132.6
±19.2
0.0
--
647.3
±37.9
24.5
±6.8
1,069.6
±48.7
1992 to 1997 430.8
±41.3
207.6
±22.1
0.0
--
1,045.7
±50.6
68.0
±14.2
1,752.1
±70.9
1997 to 2002 259.8
±24.4
122.8
±24.9
0.0
--
723.4
±42.8
30.4
±9.5
1,136.4
±71.1
2002 to 2007 150.5
±20.0
84.1
±21.3
0.0
--
531.0
±47.3
14.7
±8.9
780.3
±60.3
1982 to 2007 1,428.0
±93.6
694.9
±57.5
0.0
--
3,432.9
±132.0
139.9
±17.1
5,695.7
±197.4
Northern Plains 1982 to 1987 48.5
±13.6
6.9
±3.1
14.8
±5.4
3.2
±1.7
0.7
±0.5
74.1
±16.2
1987 to 1992 122.4
±33.8
27.7
±13.9
40.3
±11.0
9.2
±4.5
9.3
±6.6
208.9
±42.9
1992 to 1997 114.5
±18.6
28.4
±8.2
69.5
±21.5
22.1
±9.4
7.1
±5.5
241.6
±32.6
1997 to 2002 83.3
±22.3
15.8
±6.8
31.9
±12.1
16.8
±12.2
5.9
±3.8
153.7
±28.0
2002 to 2007 67.9
±19.3
14.6
±12.0
22.9
±8.5
17.9
±14.2
4.6
±2.5
127.9
±32.2
1982 to 2007 441.2
±60.6
93.4
±24.7
182.9
±36.2
68.4
±22.3
20.3
±6.9
806.2
±89.0
Pacific 1982 to 1987 97.8
±30.3
47.9
±19.3
142.0
±48.8
139.3
±34.9
18.2
±12.8
445.2
±62.3
1987 to 1992 189.1
±35.3
84.5
±24.2
275.6
±101.8
220.8
±41.2
28.4
±13.8
798.4
±120.8
1992 to 1997 226.7
±31.6
95.8
±29.2
266.8
±76.6
277.2
±36.3
53.4
±24.6
919.9
±87.9
1997 to 2002 176.2
±39.9
82.5
±20.8
248.1
±64.3
227.3
±34.8
21.4
±10.5
755.5
±96.7
2002 to 2007 165.9
±79.7
64.4
±24.6
165.9
±47.9
146.6
±34.7
22.2
±20.0
565.0
±86.3
1982 to 2007 900.0
±114.4
368.6
±79.5
1,109.9
±181.9
986.5
±109.6
119.0
±57.2
3,484.0
±255.0
Southeast 1982 to 1987 169.3
±38.7
113.3
±21.9
77.5
±25.3
542.3
±44.9
20.2
±11.6
922.6
±61.9
1987 to 1992 229.2
±46.6
231.0
±46.4
119.6
±40.6
791.3
±66.3
33.8
±14.7
1,404.9
±102.0
1992 to 1997 295.4
±39.1
369.2
±65.9
112.3
±39.3
1,310.7
±74.0
84.4
±21.6
2,172.0
±113.8
1997 to 2002 201.0
±42.1
377.3
±78.5
94.6
±124.9
1,158.6
±97.3
46.6
±38.8
1,878.1
±145.7
2002 to 2007 158.5
±38.3
332.6
±145.9
64.5
±36.8
931.3
±105.3
23.5
±5.7
1,510.4
±169.3
1982 to 2007 1,282.2
±155.3
1,291.6
±235.6
527.9
±173.9
4,593.5
±269.0
192.8
±57.4
7,888.0
±371.9
Southern Plains 1982 to 1987 136.9
±36.0
131.5
±30.8
238.4
±56.2
69.7
±27.7
8.6
±7.8
585.1
±79.2
1987 to 1992 117.8
±30.2
163.9
±45.2
222.6
±61.2
78.4
±27.4
16.9
±11.7
599.6
±92.4
1992 to 1997 161.4
±36.1
236.3
±45.4
294.6
±50.8
121.5
±38.2
27.2
±9.9
841.0
±93.0
1997 to 2002 145.2
±33.0
274.6
±64.8
429.1
±128.1
268.5
±80.0
18.5
±6.8
1,135.9
±121.0
2002 to 2007 155.0
±33.5
241.9
±100.5
360.7
±74.7
192.2
±64.4
19.5
±4.9
969.3
±112.4
1982 to 2007 920.6
±132.4
1,036.9
±171.5
1,392.9
±176.4
678.8
±144.6
101.7
±41.5
4,130.9
±250.1
Notes:
• Cropland includes cultivated and non-cultivated cropland.
• All Other includes other rural land, water areas, Federal land, and Conservation Reserve Program (CRP) Land. CRP was not implemented until 1985.
• When the estimate is 0.0, margins of error are not applicable and shown as a dashed line (--).
• Instances where the margin of error is greater than or equal to the estimate are displayed in italics indicating that the confidence interval includes zero and that the estimate should not be used.

 

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