| 凋落叶养分动态的起伏型时间序列分析 |
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| 引用本文： | 林淑伟,吴承祯,洪伟,范海兰,林晗,程煜. 凋落叶养分动态的起伏型时间序列分析[J]. 福建林学院学报, 2009, 29(3) |
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| 作者姓名： | 林淑伟 吴承祯 洪伟 范海兰 林晗 程煜 |
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| 作者单位： | 1. 福建农林大学林学院,福建,福州,350002;福建省高校森林生态系统过程与经营重点实验室,福建,福州,350002
2. 福建师范大学地理科学学院,福建,福州,350008 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 凋落物分解归还的养分能够满足森林植物生长的大部分需要,其中凋落叶分解所释放的养分是森林生态系统养分循环的重要组成部分。N、P、K是植物生长发育不可缺少的营养元素,对促进林木生长,提高林业生产力有很大作用。对闽楠、樟树、竹柏、池杉凋落叶N、P、K的释放动态的初步分析。结果表明,3种元素在分解过程都出现不同程度的富集,除闽楠凋落叶的元素基本呈释放状态外,其它3种凋落叶的养分大都呈富集现象,其中N、P以富集为主,K以淋溶释放为主。总之,3种营养元素含量及释放量在分解过程中随时间而波动。因此,本研究应用起伏型时间序列法对其动态进行模拟,模拟结果比较理想,说明该方法可应用于凋落物分解过程养分动态的研究。
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| 关 键 词： | 养分含量 养分释放量 起伏型时间序列法 凋落叶 |
Analysis of leaves nutrient dynamics by wave-type time series method |
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| LIN Shu-wei,WU Cheng-zhen,HONG Wei,FAN Hai-lan,LIN Han,CHENG Yu. Analysis of leaves nutrient dynamics by wave-type time series method[J]. Journal of Fujian College of Forestry, 2009, 29(3) |
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| Authors: | LIN Shu-wei WU Cheng-zhen HONG Wei FAN Hai-lan LIN Han CHENG Yu |
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| Affiliation: | LIN Shu-wei1,2,WU Cheng-zhen1,HONG Wei1,FAN Hai-lan1,LIN Han1,CHENG Yu3(1.College of Forestry,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,China,2.Key Laboratory for Forest Ecosystem Process and Management of Fujian Province,3.College of Geographical Sciences,Fujian Normal University,Fujian 350008,China) |
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| Abstract: | Litter-fall decomposition provided the most nutrients needed by forest growth,and the nutrient released by leaf-litter decomposition was an important part of nutrient cycle in forest ecosystem.Nitrogen,phosphorus and kalium which are the indispensable nutrient elements in forest growth played a very important role in improving forest productivity.The dynamics of 3 main nutrient elements releases were analyzed among Phoebe bournei,Cinnamomum camphora,Podocarpurs nagi,Taxodium ascendens.The result showed that... |
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| Keywords: | nutrient concentration nutrient release wave-type time series method leaflitter |
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