| 青冈常绿阔叶林磷的释放动态研究 |
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| 引用本文： | 于明坚,李铭红.青冈常绿阔叶林磷的释放动态研究[J].浙江大学学报(理学版),1998,25(4):75-79. |
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| 作者姓名： | 于明坚 李铭红 |
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| 作者单位： | [1]杭州大学生命科学学院 [2]浙江师范大学 |
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| 基金项目： | 国家自然科学基金,浙江省自然科学基金 |
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| 摘 要： | 本文报道了浙江建德青冈常绿阔叶林 5 种凋落物分解过程中 P 的释放动态,并建立了 P 残留率变化 的模型. P 浓度在凋落物分解 24 个月后变化很小, 期间走势较为平稳. P 的残留率与凋落物的残留率关系 密切; 但 P 浓度及 C/P 比的变化与干物质的消失并不相关.
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| 关 键 词： | 青冈 常绿阔叶林 磷 释放动态 |
Release Dynamics of Phosphorus in an Evergreen Broad leaved Forest Dominated by Cyclobalanopsis glauca in SE,China |
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| Yu Mingjian,Chen Qichang.Release Dynamics of Phosphorus in an Evergreen Broad leaved Forest Dominated by Cyclobalanopsis glauca in SE,China[J].Journal of Zhejiang University(Sciences Edition),1998,25(4):75-79. |
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| Authors: | Yu Mingjian Chen Qichang |
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| Institution: | ( College of Life Science,Hangzhou University, Hangzhou 310012) |
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| Abstract: | The relationship of transpiration(Tr) characters and mineral absorption of three spieces of Polygonaceae: Polygonum lapathifolium , Fagopyrum dibotrys and Rumes japonicus cultured in the eutrophic w ater were studied. Results showed that the responds of three plants to light(L )and Temperature(T)w ere P. lapathifolium > F. dibotrys > R. japonicus, T and L were the main factors controling P . lapathifolium and F . dibotrys' Tr; L, RH and Sw were the main factors controling R . japonicus' Tr . Theremoval rate of NO3 -1 w as: P . lapathifolium > F . dibotrys > R . japonicus. The order consistents with the daily transpiration intensity' s(Trd' s) , therefore, the Trd can be used as an index of purification capability of plants chosen for purifing eutrophic water of wetlands. |
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| Keywords: | eutrophic water transpiration(Tr ) plant absorption |
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