The effect of excessive nitrogen on the development of trees

Herder, Teun den (2021) The effect of excessive nitrogen on the development of trees. Bachelor's Thesis, Biology.

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Abstract

Nitrogen deposition is an increasing problem for nature and biodiversity. Since forests are a large carbon storage, it is important to know what effect nitrogen has on seeds and young trees, since those are important for renewal and establishment. Increasing nitrogen has a net negative effect on oak recruitment of 3-29%. For conifers there seems to be a net positive effect, but more re- search has to be done on other species. For young trees mortality increases, but if a young tree survives, nitrogen has a positive effect on growth up to a certain threshold, after which there is no significant increase, or even a decrease. Most of the results found were species specific, so there should be more research done on different species. Also, since nitrogen deposition may have combined effects with factors like carbon dioxide concentration, there should be research done on natural differences.

Item Type:	Thesis (Bachelor's Thesis)
Supervisor name:	Elzenga, J.T.M.
Degree programme:	Biology
Thesis type:	Bachelor's Thesis
Language:	English
Date Deposited:	09 Aug 2021 09:10
Last Modified:	09 Aug 2021 09:10
URI:	https://fse.studenttheses.ub.rug.nl/id/eprint/25628

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