Abstract
dc:description.abstractDeficiency of available nitrogen (N) is one of the major factors limiting the establishment of a long term self-sustaining vegetative community on mine soils. This investigation was conducted to study the nature of N form and dynamics in southwest Virginia mine soils. Fresh mine spoils contained a large amount of indigenous N, ranging from 650 to 2500 mg/kg soil, which complicated N studies. Most of the indigenous N was "geologic N" which was unavailable to plants. The geologic N came from either 2:1 silicate minerals (fixed NH₄<sup>+</sup>) or coal fragments (nonhydrolyzable organic N). Active N, consisting of hydrolyzable organic N and exchangeable N, comprised the minor fraction of indigenous N available to plants.
Degree
thesis:*- Name thesis:degree_name
- Ph. D.
- Level thesis:degree_level
- doctoral
- Discipline thesis:degree_discipline
- Crop and Soil Environmental Sciences
- Department dc:contributor.department
- Crop and Soil Environmental Sciences
- Grantor dc:publisher
- Virginia Tech
- Year dc:date.issued
- 1991
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Li, Renssheng
- Chair dc:contributor.committeechair
-
- Daniels, W. Lee
- Committee members dc:contributor.committeemember
-
- Evanylo, Gregory K.
- Burger, James A.
- Martens, David C.
- Reneau, Raymond B. Jr.
- Zelazny, Lucian W.
Rights
dc:rights- Statement dc:rights
-
- In Copyright
- Licence dc:rights.uri
- Language dc:language.iso
- en
Identifiers
dc:identifier.*- Dc Identifier Other
- etd-10142005-135808
- OAI identifier oai:identifier
- oai:vtechworks.lib.vt.edu:10919/39924