... 12H2O] and tamarugite [NaAl(SO4)2 6H2O] were identified in efflorescences on the surface of a young, saline acid sulfate soil from Thailand (5). Their ... For most acid sulfate waters from the field in Thai-land, this figure was... more
... 12H2O] and tamarugite [NaAl(SO4)2 6H2O] were identified in efflorescences on the surface of a young, saline acid sulfate soil from Thailand (5). Their ... For most acid sulfate waters from the field in Thai-land, this figure was close to 5%. Because in most of these soils the SO42 ...
Research Interests:
Soil weathering can be an important mechanism to neutralize acidity in forest soils. Tree spe- cies may differ in their effect on or response to soil weathering. We used soil mineral data and the natu- ral strontium isotope ratio... more
Soil weathering can be an important mechanism to neutralize acidity in forest soils. Tree spe- cies may differ in their effect on or response to soil weathering. We used soil mineral data and the natu- ral strontium isotope ratio 87Sr/86Sr as a tracer to identify the effect of tree species on the Ca weathering rate. The tree species studied were sugar maple (Acer saccharum), hemlock (Tsuga Canadensis), Ameri- can beech (Fagus grandifolia), red maple (Acer rubrum), white ash (Fraxinus Americana) and red oak (Quercus rubra) growing in a forest in northwestern Connecticut, USA. Three replicated sites domi- nated by one of the six tree species were selected. At sugar maple and hemlock sites the dominant min- eral concentrations were determined at three soil depths. At each site soil, soil water and stem wood of the dominant tree species were sampled and analyzed for the 87Sr/86Sr ratio, total Sr and Ca content. Atmospheric deposition was collected and analyzed for the same constituents....
Research Interests:
Research Interests:
... Africa JJ STOORVOGEL1, N. VAN BREEMEN1 and BH JANSSEN2 1 Dept. ... season. The dust deposition was estimated by the classical water-filled basin method and by using canopy drip to account for deposition on tree canopies. ...
Research Interests:
Soil weathering can be an important mechanism to neutralize acidity in forest soils. Tree spe- cies may differ in their effect on or response to soil weathering. We used soil mineral data and the natu- ral strontium isotope ratio... more
Soil weathering can be an important mechanism to neutralize acidity in forest soils. Tree spe- cies may differ in their effect on or response to soil weathering. We used soil mineral data and the natu- ral strontium isotope ratio 87Sr/86Sr as a tracer to identify the effect of tree species on the Ca weathering rate. The tree species studied were sugar maple (Acer saccharum), hemlock (Tsuga Canadensis), Ameri- can beech (Fagus grandifolia), red maple (Acer rubrum), white ash (Fraxinus Americana) and red oak (Quercus rubra) growing in a forest in northwestern Connecticut, USA. Three replicated sites domi- nated by one of the six tree species were selected. At sugar maple and hemlock sites the dominant min- eral concentrations were determined at three soil depths. At each site soil, soil water and stem wood of the dominant tree species were sampled and analyzed for the 87Sr/86Sr ratio, total Sr and Ca content. Atmospheric deposition was collected and analyzed for the same constituents....