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硅酸盐细菌对滨海盐渍土高羊茅生长及表土淋溶脱盐的影响(PDF)

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

Issue:
2012年02期
Page:
106-110
Column:
城镇绿地特殊生境生态修复关键技术研究专栏
publishdate:
2012-04-10

Article Info:/Info

Title:
Effect of coastal saline soils inoculated with silicate bacteria to growth of Festuca arundinacea and topsoil leaching desalination
Author(s):
ZHU Yi
Shanghai Landscape Gardening Research Institute, Shanghai 200232, China
Keywords:
coastal saline soils Bacillus megaterium Bacillus mucilaginosus leaching desalination Festuca arundinacea
Classification number :
S718
DOI:
10.3969/j.jssn.1000-2006.2012.02.022
Document Code:
A
Abstract:
A greenhouse experiment was carried out with the objective of evaluating the effects of peat inoculated with two types of silicate bacteria, Bacillus megaterium and B.mucilaginosus, in the amendment of coastal saline soil from Lingang, Shanghai. The result showed that coastal soils inoculated with B. megaterium or B. mucilaginosus was more efficient than non-inoculated treatments in Festuca arundinacea growth promoting of root length, shoot height, biomass and relative water content of tissue, the mean ratio of root to shoot was raised by 3.66% and 3.21% respectively. The leachate volume of 1.80 L were collected at 130% water-holding capacity of the soil, the inoculated cropped-treatments took less 3.70-6.60 min than non-inoculated cropped-treatment, also took less 23.70-26.60 min than control treatment. In comparison with non-inoculated treatment, the inoculated treatments had significantly higher concentrations of Ca2+ and K+, that subsequently removed a greater amount of Na+ from topsoil. The inoculated treatments had lower mean value of EC in topsoil, and the desalting process happened in inoculated treatments would not cause pH increase.

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Last Update: 2012-04-10