| 杉木、马尾松及其混交林根际土壤磷素特征 |
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| 作者姓名： | Zhang DH Lin KM Li BF |
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| 作者单位： | 1. 科技部湿润亚热带山地生态国家重点实验室培育基地,福州350007;福建师范大学生命科学学院,福州350007
2. 福建省林业科学研究院,福州,350012 |
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| 基金项目： | 福建省人才创新基金项目(2001J037)资助 |
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| 摘 要： | 2007-2010年,在福建省南平市延平区太平试验林场比较分析了杉木、马尾松纯林及其混交林根际土壤的磷素特征.结果表明:在杉木、马尾松纯林中,根际土壤的有效磷含量均大于非根际土壤.与非根际土壤相比,杉木、马尾松纯林及其混交林的根际土壤pH值均出现下降趋势;根际土O-P的数量低于非根际土,而Al-P和Fe-P则高于非根际土;3种林型中,根际土壤对磷的吸附量小于非根际土壤;而根际土壤磷解吸量和解吸率均高于非根际土壤.杉木、马尾松纯林中,马尾松根际土壤的有效磷、Fe-P、Al-P、解吸量和解吸率均高于杉木,而O-P、磷吸附量则低于杉木.杉木与马尾松混交后,二者根际土壤磷的活化作用进一步加强,且杉木的增幅更大.杉木与马尾松混交有利于杉木根系磷素营养的改善.
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| 关 键 词： | 杉木 马尾松 混交林 根际土壤 磷 |
Phosphorus characteristics in rhizosphere soil of Cunninghamia lanceolata, Pinus massoniana and their mixed plantations |
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| Zhang DH,Lin KM,Li BF.Phosphorus characteristics in rhizosphere soil of Cunninghamia lanceolata, Pinus massoniana and their mixed plantations[J].Chinese Journal of Applied Ecology,2011,22(11):2815-2821. |
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| Authors: | Zhang Ding-Hua Lin Kai-Miao Li Bao-Fu |
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| Institution: | ZHANG Ding-hua1,2,LIN Kai-miao1,LI Bao-fu3(1Cultivation Base of Ministry of Science and Technology Key Laboratory of Humid Subtropical Mountain Ecology,Fuzhou 350007,China,2College of Life Sciences Fujian Normal University,3Fujian Academy of Forestry Science,Fuzhou 350012,China) |
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| Abstract: | In 2007-2010,a comparative study was conducted on the phosphorus characteristics in the rhizosphere soil of Cunninghamia lanceolata,Pinus massoniana and C.lanceolata-P.massoniana mixed plantations in a forest farm in Nanping City of Fujian Province,East China.In the rhizosphere soil of pure C.lanceolata and P.massoniana plantations,the content of available P was higher than that in non-rhizosphere soil.As compared with non-rhizosphere soil,the rhizophere soil in the three plantations had lower pH and O-P co... |
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| Keywords: | Cunninghamia lanceolata Pinus massoniana mixed plantation rhizosphere soil phosphorus |
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