Zobrazeno 1 - 10
of 110
pro vyhledávání: '"Friedrich Beese"'
Publikováno v:
Ecological Modelling. 345:150-164
The effects of acid soil conditions on mineral nutrition and growth of forest trees are discussed controversially. It is hypothesized that approaches are needed which determine the root nutrient uptake rates as affected by root-induced processes in t
Publikováno v:
Agricultural and Forest Meteorology. :80-89
A functional–structural (FS) model of tree water flow is applied for single trees in an old-growth temperate broad-leaved forest stand. Roots, stems and branches are represented by connected porous cylinder elements that are divided into the inner
Autor:
Inga Krämer, Ulrike Talkner, Eckart Priesack, Sebastian Bittner, Friedrich Beese, Dirk Hölscher
Publikováno v:
Agricultural and Forest Meteorology. 150:1347-1357
This modeling study used recent observations at a temperate broad-leaved forest in Central Germany to calculate water balances of a Fagus sylvatica monoculture and mixed stands of F. sylvatica , Tilia spp., Acer spp., Carpinus betulus , Fraxinus exce
Publikováno v:
Soil Biology and Biochemistry. 41:742-753
To investigate the role of arbuscular and ectomycorrhizas for growth and nutrition, Douglas fir (Pseudotsuga menziesii), a species capable of establishing both types of symbioses, was used. Seedlings of two varieties of Douglas fir, var. menziesii (D
Publikováno v:
European Journal of Soil Science. 60:338-346
Summary Problems in phosphorus (P) nutrition of forest trees raise questions concerning the soil P concentrations, pools and turnover in forests. In addition, it is not clear if, and to what extent, tree species diversity has an influence on the soil
Publikováno v:
Journal of Forestry Research. 19:263-270
Allocation of biomass and nutrient elements including Nitrogen to above and belowground compartments of beech seedlings (Fagus sylvatica L.) treated by labeled nitrogen fertilizer in the form of 15NH4 and 15NO3 were investigated at the end of two suc
Publikováno v:
Journal of Forestry Research. 19:107-112
The measurement of CO2 and N2O efflux from forest soils is of great importance in evaluating the role of forests as sequestering agents of atmospheric CO2 and nitrogen. To quantify the effect of site on temperature dependence of net C-mineralization
Publikováno v:
European Journal of Soil Biology. 44:247-254
To monitor the effects of liming on forest ecosystems, experimental plots were installed in forests in mid-western Germany. In addition to soil chemical indices, earthworm communities were investigated on these plots about 15 years after first lime a
Publikováno v:
Journal of Forestry Research. 19:37-43
It was hypothesized that increasing air and/or soil temperature would increase rates of microbial processes including litter decomposition and net N mineralization, resulting in greater sequestration of carbon and nitrogen in humus, and consequently
Publikováno v:
Biology and Fertility of Soils. 44:891-895
A 28-day incubation experiment at 12°C was carried out on the decomposition of maize leaf litter to answer the questions: (1) Is the decomposition process altered by chemical manipulations due to differences in the colonization of maize leaf litter?