[1]JIANG Hong-mei,LI Ming-zhi,WANG Qin,et al.Dynamics of Soil Nutrients under Different Vegetation Types in the Eastern Qilian Mountains[J].Research of Soil and Water Conservation,2011,18(05):166-170.
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Dynamics of Soil Nutrients under Different Vegetation Types in the Eastern Qilian Mountains
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
18
Number of periods:
2011 05
Page number:
166-170
Column:
Public date:
2011-10-20
- Title:
- Dynamics of Soil Nutrients under Different Vegetation Types in the Eastern Qilian Mountains
- Keywords:
- Qilian Mountains; vegetation; soil nutrient; soil-vegetation ecosystem
- CLC:
- S714.5
- DOI:
- -
- Abstract:
- By analyzing carbon, nitrogen and phosphorus changes of 0-20 cm soil layer and 20-40 cm soil layer under the five vegetation types, we studied the effects of different vegetation on soil nutrients in Tianzhu County of the Eastern Qilian Mountain. The results indicated: vegetation can significantly improve the surface soil nutrient, and surface aggregation effect of arbor is stronger than shrub and grass. With the changes of vegetation from grass to shrub and then to arbor, soil organic carbon, total nitrogen, ammonium nitrogen and available phosphorus show a growing trend (p<0.05) while there is no significant changes in soil total phosphorus. Changes in nitrate nitrogen are complex due to many factors. Taking all factors into consideration, the ability to maintain the soil nutrient balance of Qinghai spruce-birch mixed forest is stronger than the other four vegetations.
- References:
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