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生物覆盖对山地杨树人工林根际土壤磷动态的影响(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2008年04期
Page:
47-50
Column:
研究论文
publishdate:
2008-07-20

Article Info:/Info

Title:
Effects of biological mulching on dynamic of phosphorus contents in rhizospheric soil of poplar plantation in southern upland area
Article ID:
1000-2006(2008)04-0047-04
Author(s):
LIU Jiu-jun12 FANG Sheng-zuo1* SHE Cheng-qi1
1. College of Forest Resoarces and Environment Nanjlng Forestry University, Nanjing 210037, China; 2. Kunming Survey & Design Institute of National Forestry Administration, Kunming 650225, China
Keywords:
Biological mulching Poplar Rhizospheric soil Total phosphorus Available phosphorus
Classification number :
S718
DOI:
10.3969/j.jssn.1000-2006.2008.04.010
Document Code:
A
Abstract:
Effects of mulching weights and materials on dynamic of phosphorus contents in rhizospheric soil of poplar plantation were investigated in this paper. The results showed that the contents of total P increased with the increasing of mulching materials. The contents of total P after the treatment with 2.5, 5.0, 7.5 kg/m2 were 10.77%, 13.85%and 52.31%higher than that in control respectively. There were little differences among different mulching materials, but the contents of total P mulching with them were higher than that of the control. The contents of available P in rhizospheric soil obviously increased after mulching. The contents of available P rised as mulching weights increased. Mulching materials had remarkable effects on the contents of available P. C. nepalensis and L cylindrical vat. major were superior to Q. fabric and P. aquilinum var. latiuscukum. The effects of mulching materials on dynamic of phosphorus contents in rhizospheric soil were similar to mulching weights. It was found that the contents of total P and available P decreased from April to July, then increased from July to December after biological mulching.

References

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Last Update: 2013-05-20