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Filtering by: Has journal Microbial Ecology Advisor Youngberg, C. T. Decade 1960-1969

Soil-vegetation relationships withing the ponderosa pine type in the central Oregon pumice region

Creator:

Dyrness, C. T.

Resource Type:

Dissertation
Soluble carbon and respiration of forest humus

Creator:

Hu, Lily Jho-yuan

Abstract:

Humus is one of the important factors controlling the soil formation process. The nutrients released from it during the decomposition process also affect the growth and reproduction of the forest. The type of humus formed is influenced by the nature of the forest litter and the environment in which it...

Resource Type:

Masters Thesis

Full Text:

(Marten and Pohlman, 1942). There is no doubt that microbial activity is one of the most important
The role of certain non-leguminous woody species in the nitrogen nutrition of some conifer seedlings

Creator:

Wollum, Arthur George

Resource Type:

Masters Thesis

Full Text:

their own litter . This may lead to a number of changes in nutrient status, in microbial activity (33
Effect of snowbrush on the establishment and growth of Douglas-fir seedlings

Creator:

Scott, William

Abstract:

Six, recent clear cut areas were selected in the Douglas-fir zone of the Western Cascade Range of Oregon to determine the environmental and nutritional effects that snowbrush has on the establishment and growth of Douglas-fir seedlings. One thousand eighty milacre sample plots on the six clear cuts were used to...

Resource Type:

Masters Thesis

Full Text:

. All other species tested had less than 1.5% in the litter, thus used soil nitrogen in the microbial