The effect of land use on soil fertility and phosphorus dynamics in sub-alpine grassland soils of Gansu, China
The objectives of this study were (1) to determine if there is any soil degradation as indicated by soil fertility declines and soil erosion; (2) to understand soil P dynamics under different land uses; and (3) to determine if pasture degradation can be evaluated by plant cover, plant species change...
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| Format: | Others |
| Language: | en |
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University of Saskatchewan
2001
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| Online Access: | http://library.usask.ca/theses/available/etd-10212004-002434 |