Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Westman, Carl"'
Publikováno v:
Silva Fennica, Vol 43, Iss 4 (2009)
With a data set of litter decomposition collected by means of literature survey, our objectives are 1) to determine the differences in the variation in the first-year mass loss (%) of leaf litter with regard to climate and litter quality among differ
Externí odkaz:
https://doaj.org/article/5ca85a1d8836404f8c8025128532955f
Publikováno v:
Silva Fennica, Vol 37, Iss 1 (2003)
The aim of this study is to investigate the early establishment of Pinus sylvestris L. (Scots pine) and Picea abies (L.) Karst. (Norway spruce) seedlings on soil freshly prepared and soil left to stabilise for one year after preparation. Three site p
Externí odkaz:
https://doaj.org/article/1cd1210cc4824475afcd275219699458
Publikováno v:
Silva Fennica, Vol 37, Iss 2 (2003)
It is commonly known in Finland that Scots pine (Pinus sylvestris L.) is a tree of dry soils and Norway spruce (Picea abies (L) Karst.) is a tree of fresh soils. However, the concepts of dry and fresh soils still lack a precise definition. Consequent
Externí odkaz:
https://doaj.org/article/cdef4ab80e85451db81667dee077adcc
Publikováno v:
Silva Fennica, Vol 35, Iss 1 (2001)
In the mountainous area of North China, a distinguishing feature of climate is the serious drought of spring and the humidity and high temperature of summer by which the litter production and decomposition of forest litter were strongly characterized
Externí odkaz:
https://doaj.org/article/435cb1453a3a4384ac35bb56fb035ce9
Autor:
Westman, Carl
Publikováno v:
Silva Fennica, Vol 29, Iss 3 (1995)
A simple, manually-operated and easily portable device for sampling volumetric soil cores to a depth of 100 cm with a minimum soil disturbance is described. The device consists of a sample tube, a sampler and an extension tube. A dead blow nylon mall
Externí odkaz:
https://doaj.org/article/c7d72d0b5ccc4d9d927f9b417e5ba706
Autor:
Westman, Carl
Publikováno v:
Silva Fennica, Vol 24, Iss 1 (1990)
In soil profiles from a series of uplands of different site types bulk density, density of solids and porosity of soil were clearly related to soil organic matter content and its distribution in the soil profile. Soil organic matter contents were als
Externí odkaz:
https://doaj.org/article/efdeec2e0e5b4cbaae7819fb2464d8af
Autor:
Starr, Michael, Westman, Carl
Publikováno v:
Silva Fennica, Vol 12, Iss 2 (1978)
The paper deals with the nutrient status of surface peat layer from virgin sedge-pine swamps and its relationship to peatland types. When the nutrients are expressed in mg/100 g peat, only easily extractable Ca and Mg correspond to the productivity s
Externí odkaz:
https://doaj.org/article/daba2d389dc94122b9a56e14a687a157
Publikováno v:
Silva Fennica, Vol 19, Iss 4 (1985)
A method for calculation of the effect of practical fertilization for economic evaluation is presented and discussed. 55 Norway spruce ( (L.) H. Karst.) dominated stands on type sites were surveyed five to eight years after fertilization with nitroge
Externí odkaz:
https://doaj.org/article/faca2fa6a7804f88ad9bde11f1a69e83
Autor:
Westman, Carl
Publikováno v:
Silva Fennica, Vol 10, Iss 4 (1976)
The paper describes an attempt to determine whether ammonium, nitrate and urea nitrogen are bound in peat used as a filling material in containerized seedling production, what is the effect of the nutrients on certain chemical properties in the peat,
Externí odkaz:
https://doaj.org/article/1bfbe10edf1745bbbccecfa980122d5c
Publikováno v:
Silva Fennica, Vol 19, Iss 1 (1985)
Transects from upland to peatland sites were laid out so as to encounter a wide range of nutritional and hydrological conditions and volumetric soil samples were taken at 20 m intervals. For organic material, in particular peats, the correlation of i
Externí odkaz:
https://doaj.org/article/26fee0da4f784e7b8c7621be054e0332