Carbon and nitrogen turnover in two acid forest soils of southeast Australia as affected by phosphorus addition and drying and rewetting cycles

1994 ◽  
Vol 17 (3) ◽  
pp. 212-218 ◽  
Author(s):  
J. Bauhus ◽  
P. K. Khanna
Keyword(s):  
Forest Soils ◽  
Phosphorus Addition ◽  
Carbon And Nitrogen ◽  
Nitrogen Turnover ◽  
Southeast Australia ◽  
Drying And Rewetting ◽  
Acid Forest Soils

Molybdenum at German Norway spruce sites: contents and mobility

2000 ◽  
Vol 30 (7) ◽  
pp. 1034-1040 ◽  
Author(s):  
Friederike Lang ◽  
Martin Kaupenjohann
Keyword(s):  
Norway Spruce ◽  
Forest Soils ◽  
Forest Floor ◽  
Forest Ecosystems ◽  
Mineral Soil ◽  
Organic Layer ◽  
Soil Profiles ◽  
Nitrogen Turnover ◽  
Acid Forest Soils ◽  
Mineral Soils

Molybdenum plays an important role in the nitrogen turnover of ecosystems. However, very little is known about Mo availability in forest soils. We measured the oxalate-extractable Mo concentrations of acid forest soils, the Mo, nitrate, phosphate, and sulfate fluxes from the organic forest floor into the mineral soil using resin tubes and the Mo concentrations of the tree needles at 28 different Norway spruce (Picea abies (L.) Karst.) sites in southern Germany. The supply of oxalate-extractable Mo varied from 51 to 3400 g·ha-1, with the lowest values occurring in sandstone-derived soils (370 ± 212 g·ha-1; mean ± SD). Molybdenum concentrations of current-year needles were in the range of 5 to 48 ng·g-1. The Mo needle concentrations and oxalate-extractable Mo of soils did not correlate. However, Mo fluxes (6-60 g·ha-1·a-1) from the organic forest floor into the mineral soils were correlated to needle concentrations and to the NO3 fluxes. We conclude that Mo turnover within forest ecosystems is governed by Mo plant availability of mineral soils as well as by plant Mo uptake. In addition, Mo cycling strongly affects Mo distribution within soil profiles and Mo fluxes out of the organic layer.

Mineral evolution of acid forest soils in the Strengbach catchment (Vosges mountains, N-E France)

Geoderma ◽  
1998 ◽  
Vol 82 (4) ◽  
pp. 315-340 ◽  
Author(s):  
Jörg Fichter ◽  
Marie-Pierre Turpault ◽  
Etienne Dambrine ◽  
Jacques Ranger
Keyword(s):  
Forest Soils ◽  
Vosges Mountains ◽  
Acid Forest Soils ◽  
Strengbach Catchment

Solution chemistry in acid forest soils: Are the BC : Al ratios as critical as expected in Switzerland?

2004 ◽  
Vol 167 (2) ◽  
pp. 160-168 ◽  
Author(s):  
Elisabeth Graf Pannatier ◽  
Lorenz Walthert ◽  
Peter Blaser
Keyword(s):  
Forest Soils ◽  
Solution Chemistry ◽  
Acid Forest Soils

Mechanisms for aluminum release in Chinese acid forest soils

Geoderma ◽  
1999 ◽  
Vol 91 (1-2) ◽  
pp. 65-86 ◽  
Author(s):  
Thorjørn Larssen ◽  
Rolf D Vogt ◽  
Hans Martin Seip ◽  
Geir Furuberg ◽  
Bohan Liao ◽  
...  
Keyword(s):  
Forest Soils ◽  
Acid Forest Soils
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