Microbial biomass phosphorus contributions to phosphorus solubility in riparian vegetated buffer strip soils
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- 作者：William M. Roberts (1) (2)
Rachel A. Matthews (3)
Martin S. A. Blackwell (3)
Sabine Peukert (3) (4)
Adrian L. Collins (5) (6)
Marc I. Stutter (2)
Philip M. Haygarth (1) - 关键词：Phosphorus solubility ; Organic matter ; Microbial biomass phosphorus ; Microbial turnover ; Riparian vegetated buffer strip
- 刊名：Biology and Fertility of Soils
- 出版年：2013
- 出版时间：November 2013
- 年：2013
- 卷：49
- 期：8
- 页码：1237-1241
- 全文大小：
- 作者单位：William M. Roberts (1) (2)
Rachel A. Matthews (3)
Martin S. A. Blackwell (3)
Sabine Peukert (3) (4)
Adrian L. Collins (5) (6)
Marc I. Stutter (2)
Philip M. Haygarth (1)
1. Lancaster Environment Centre, Lancaster University, Lancaster, LA1 4YQ, UK
2. The James Hutton Institute, Aberdeen, AB15 8QH, UK
3. Rothamsted Research, North Wyke, Okehampton, EX20 2SB, UK
4. University of Exeter, Exeter, EX4 4RJ, UK
5. ADAS, Pendeford House, Wolverhampton, WV9 5AP, UK
6. University of Southampton, Southampton, SO171BJ, UK - ISSN：1432-0789
文摘
This study tests the hypothesis that microbial biomass phosphorus (P) makes a significant contribution to P solubility in riparian buffer strip soils. In 36 soils collected from buffer strips within three UK soil associations, water-extractable inorganic P solubility was most strongly related to NaHCO3 extractable inorganic P. However, within individual soil associations where soil pedological properties and management were similar, water-extractable inorganic P was most strongly related to microbial biomass P. These results highlight the difficulty in predicting dissolved P leaching risk based on agronomic soil P tests alone and the dissolved P leaching risk presented by having soils high in organic matter and microbial biomass P in close proximity to surface waters.