Index

1. AASHTO
2. acidity
3. acid soil see also pH
4. acre
5. actinomycetes
6. aggregates
7. agricultural lime
8. agricultural terraces
9. agroforestry
10. albic horizon
11. alfisols
12. algae
13. alkalinity
14. allophane
15. alluvium
16. aluminosilicate
17. ammonification
18. ammonia
19. ammonium
    1. polysulfide
    2. thiosulfate
20. amphibole
21. andisols
22. anion
    1. exchange
23. anthropic epipedon
24. ants
25. apatite
26. aquifer
27. argillic horizon
28. aridisols
29. arthropods
30. atmosphere
31. Atterberg Limits
32. available nutrients
33. azotobacter
34. bacteria
35. basalt
36. bases
37. base saturation
38. bedding
39. bedrock, II
40. biodegradable
41. biological control
42. bioremediation
43. biosolids
44. black alkali
45. blocky structure
46. bog soil
47. boreal
48. buffering capacity
49. bulk density
50. C:N ratio
51. calcic horizon
52. calcium
    1. carbonate
    2. sulfate
53. caliche
54. carbon
    1. cycle
    2. dioxide
    3. sequestration
55. carbonates
56. carbonic acid
57. carboxyl group
58. catena
59. cation
    1. capacity
    2. divalent
    3. exchange
    4. monovalent
60. channelization
61. chemical weathering
62. chernozem
63. chisel
64. chlorosis
65. clay
    1. aluminosilicates
    2. feldspar
    3. hydrous mica
    4. illite
    5. kaolinite
    6. montmorillonite
    7. silicate
    8. smectite
    9. vermiculite
66. climate
67. clods
68. colloids
69. colluvium
70. color
71. columnar structure
72. compaction
73. composting
74. conduction
75. conservation structures
76. conservation tillage
77. consistence
78. contour
79. convection
80. cover crops
81. crop residue
    1. cover
    2. incorporation
82. crop rotation
83. crumb structure
84. crust
85. crystalline rocks
86. cultivator
87. cyanobacteria
88. dams
89. degradation
90. denitrification
91. density
92. diagnostic soil horizons
93. disk
94. dispersion
95. disturbed lands
    1. artificially
    2. characteristics
    3. contaminant
    4. naturally
96. ditches
97. diversion
98. dolomite
99. drainage
100. drop structures
101. dry land farming
102. dunes
103. duripans
104. earthworms
105. ectomycorrhizae
106. elemental sulfur
107. eluvial
108. endomycorrhizae
109. energy
     1. atmosphere
     2. color
     3. land cover
     4. slope
110. engineering soil uses
     1. classification systems
     2. properties
     3. suitability
111. entisols
112. eolian sand
113. epipedon
114. erosion
     1. accelerated
     2. excessive
     3. geologic
     4. gully
     5. processes
     6. rill
     7. sheet
     8. streambank
     9. water
     10. wind
115. escarpment
116. essential elements
117. eukaryotes
118. evaporation
119. evapotranspiration
120. fauna
121. feldspar
122. ferrihydrite
123. ferromagnesian minerals
124. fertilizer
125. field capacity
126. fine earth
127. fixation
128. flocculation
129. flora
130. formica cinera
131. fragipan
132. friable
133. frost heave
134. fungi
135. furrow diking
136. gabbro
137. gelisols
138. glacial
     1. deposits
     2. drift
     3. outwash
     4. till
139. glaciers
140. global positioning system (GPS)
141. gradient
142. granite
143. granular structure
144. grasslands
145. green manure
146. groundwater
147. gypsum
148. hardpan
149. harrow
150. heat capacity
     1. of fusion
     2. latent
     3. sensible
     4. thermal conductivity
     5. transfer
     6. of vaporization
151. hectare
152. histic epipedon
153. histosols
154. humus
155. hydration
156. hydrologic cycle
157. hydrolysis
158. hydrous mica
159. hyphae
160. igneous rocks
161. illuviation
162. immobilization
163. imogolite
164. inceptisols
165. infiltration
166. insecticide
167. insects
168. integrated pest management
169. interveinal
170. ion
171. iron
172. iron oxides
173. ironstone
174. irrigation
175. isomorphous substitution
176. kandic horizon
177. kaolinite
178. land
     1. capability classes
     2. forming
179. landform
180. laterite
181. layer silicate clay see Silicate clay
182. leachate
183. leaching
184. legume
185. levees
186. lichen
187. lime
188. limestone
189. lister
190. lithospohere
191. loess
192. lumbricus terrestris
193. macronutrients
194. macroorganisms
195. macropores
196. magma
197. magnesium
198. mammals
199. management zone
200. manganese
201. manure
202. mass wasting
203. matrix
204. maximum fertilizer efficiency
205. maximum yield
206. melanic epipedon
207. metals, heavy
208. micronurients
209. microorganisms
210. micropores
211. microrelief
212. mineral
213. mineralization
214. mineral soils
     1. primary
     2. secondary
215. minimum tillage
216. mites
217. moldboard plow
218. mollie epipedon
219. mollisols
220. montmorillonie
221. moraines
222. mottling
223. muck
224. mulches
225. mycelium
226. mycorrhizae
227. myxomycetes
228. natric horizon
229. necrosis
230. nematodes
231. nitrate
232. nitrite
233. nitrobacter
234. nitrogen
     1. ammonification
     2. deficiency
     3. denitrification
     4. fixation
     5. immobilization
     6. inorganic
     7. mineralization
     8. nitrification
     9. organic
235. nitrogen cycle
236. nitrogen fixation
     1. nonsymbiotic
     2. symbiotic
237. nitrosomonas
238. nodules
239. no-till
240. nutrient
     1. deficiency symptoms
241. ochric epipedon
242. organic farming
243. organic gardening
244. organic matter
245. organic soil
246. organisms
247. ortstein
248. osmosis
249. overgrazing
250. oxic horizon
251. oxidation
252. oxisols
253. oxygen
254. parent material
255. particle size distribution
256. peat
257. ped
258. pedogenesis
259. pedology
260. pedon
261. percolation
262. permafrost
263. pesticides
264. petrocalcic horizon
265. pH
266. phosphorus
267. physical weathering
268. planter
269. plant nutrients
270. plant roots
271. platy structure
272. plinthite
273. plow
274. plow pan
275. podzol
276. pollution
277. polypedon
278. ponds
279. porosity
280. potassium
281. prairie soil
282. precipitation
283. precision agriculture
284. prismatic structure
285. productivity
286. profile
287. prokaryotes
288. protective vegetative cover
289. protozoa
290. pyroxene
291. quartz
292. quartzite
293. radiation
294. raindrop energy
295. reclamation
296. reduced tillage
297. reduction
298. regolith, II
299. relief
300. remediation
301. remote sensing
302. residences
303. residues
304. rhizobia
305. rhizosphere
306. riparian zones
307. riprap
308. roads
309. rock
     1. acid
     2. basic
     3. metamorphic
310. rock weathering
311. roots
312. rotary hoe
313. row cleaners
314. runoff
315. salic horizon
316. saline
317. saline-sodic
318. saltation
319. sand
320. sandstone
321. saprolite
322. saturation
323. sedimentary rocks
324. sensible heat
325. shale
326. shelterbelts
327. silt
328. slickenside
329. smectite
330. sodium
     1. adsorption ratio
     2. sulfate
331. soil
     1. absorption system
     2. acid
     3. aeration
     4. alkaline
     5. alluvial
     6. amendment
        1. gypsum
        2. limestone
     7. body
     8. classification
     9. color
        1. Munsell
     10. conservation
     11. contaminants
     12. definitions
     13. degradation
     14. erosion
         1. accelerated
         2. excessive
         3. fine earth
         4. geologic
         5. gully
         6. mass wasting
         7. streambank
         8. water
         9. wind
     15. exchange complex
     16. family
     17. fertility
     18. fine earth
     19. formation
     20. forming factors
     21. great groups
     22. horizon
     23. landscape
     24. management
     25. mapping unit
     26. mineral
     27. moisture
     28. moisture regimes
         1. aquic
         2. aridic
         3. torric
         4. udic
         5. ustic
         6. xeric
     29. orders
     30. organic
     31. phase
     32. profile
     33. reaction
     34. saline soil
     35. separates
     36. sequence
     37. series
     38. sodic
     39. solution
     40. stabilizers
     41. subgroups
     42. suborders
     43. surveys
     44. taxonomy
     45. temperature
         1. fluctuation
         2. microorganisms
         3. moisture
         4. solubility
     46. temperature regimes
         1. cryic
         2. frigid
         3. mesic
         4. thermic
         5. hyperthermic
         6. isohyperthermic
     47. textural triangle
     48. texture
     49. tilth
     50. type
     51. water
332. soil horizons
     1. A
     2. B
     3. C
     4. E
     5. O
     6. R
333. soluble salts
334. solum
335. solution
336. spodic horizon
337. spodosols
338. springtails
339. stomates
340. stratification
341. stream degradation
342. streptomycetes
343. strip cropping.
344. structures
345. stubble-mulching
346. sublimation
347. subsoil
348. substratum
349. sulfur.
350. summer fallow
351. surface creep
352. surface runoff
353. suspension
354. termites.
355. terrace
356. tetrahedron
357. tillage
     1. minimum
     2. no-till
     3. primary
     4. reduced
     5. secondary
358. tilth
359. time
360. topography
361. toposequence
362. topsoil
363. transpiration
364. ultisols
365. umbric epipedon
366. urban soils
     1. flooding
     2. hydrology
     3. overland flow
     4. variability
367. USC system
368. vegetative cover
369. vermiculite
370. vertebrates
371. vertisols
372. volcanic ash
373. waste
     1. liquid
     2. solid
     3. treatment
374. water
     1. capillary
     2. erosion
     3. holding capacity
     4. stable soil aggregates
     5. table
     6. treatment
375. watershed
376. waterway
377. weathering
378. wetlands
379. white alkali
380. wilting point
381. windbreaks
382. wind erosion
383. worms
384. yield maps
385. zinc