珍贵树种多树种混交林的凋落物现存量及持水性能
【目的】探讨南方珍贵树种多树种随机混交栽培的可行机制,为广西营造珍贵树种优良经营模式提供理论依据。【方法】采用样地调查和室内分析相结合的方法,分析6年生珍贵树种多树种混交林、格木＋柚木、格木纯林和降香黄檀纯林4种林分类型的凋落物储量、养分特征及持水性能等生态特征。【结果】凋落物单位面积现存量为：格木＋柚木混交林（4550.4 kg/ha）〉多树种混交林（3984.9 kg/ha）〉降香黄檀纯林（2198.1 kg/ha）〉格木纯林（1862.4 kg/ha）;多树种混交林凋落物层C/N为20.98∶1,半分解层凋落物储量占凋落物储量的49.34%,养分分解速率高于其他林分类型,且全量N、P、K...
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| Published in | 南方农业学报 Vol. 46; no. 1; pp. 85 - 90 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
广西林业科学研究院,南宁,530002%南宁市林业技术推广站,南宁,530022%南宁市丁当林场,南宁,530001
2015
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| Subjects | |
| Online Access | Get full text |
| ISSN | 2095-1191 |
| DOI | 10.3969/j:issn.2095-1191.2015.1.85 |
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| Abstract | 【目的】探讨南方珍贵树种多树种随机混交栽培的可行机制,为广西营造珍贵树种优良经营模式提供理论依据。【方法】采用样地调查和室内分析相结合的方法,分析6年生珍贵树种多树种混交林、格木＋柚木、格木纯林和降香黄檀纯林4种林分类型的凋落物储量、养分特征及持水性能等生态特征。【结果】凋落物单位面积现存量为：格木＋柚木混交林（4550.4 kg/ha）〉多树种混交林（3984.9 kg/ha）〉降香黄檀纯林（2198.1 kg/ha）〉格木纯林（1862.4 kg/ha）;多树种混交林凋落物层C/N为20.98∶1,半分解层凋落物储量占凋落物储量的49.34%,养分分解速率高于其他林分类型,且全量N、P、K养分归还总量最高,为66.67 kg/ha。多树种混交林凋落物自然含水率（量）、最高持水率（量）及有效拦蓄总量各项指标均高于格木＋柚木混交林和对照纯林。【结论】6年生珍贵树种多树种混交林凋落物现存量不具明显优势,但养分分解速率较快,凋落物N、P、K养分归还总量及持水性能均高于格木＋柚木混交林和对照纯林,南方珍贵树种多树种混交模式具有可行性。 |
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| AbstractList | 【目的】探讨南方珍贵树种多树种随机混交栽培的可行机制,为广西营造珍贵树种优良经营模式提供理论依据。【方法】采用样地调查和室内分析相结合的方法,分析6年生珍贵树种多树种混交林、格木＋柚木、格木纯林和降香黄檀纯林4种林分类型的凋落物储量、养分特征及持水性能等生态特征。【结果】凋落物单位面积现存量为：格木＋柚木混交林（4550.4 kg/ha）〉多树种混交林（3984.9 kg/ha）〉降香黄檀纯林（2198.1 kg/ha）〉格木纯林（1862.4 kg/ha）;多树种混交林凋落物层C/N为20.98∶1,半分解层凋落物储量占凋落物储量的49.34%,养分分解速率高于其他林分类型,且全量N、P、K养分归还总量最高,为66.67 kg/ha。多树种混交林凋落物自然含水率（量）、最高持水率（量）及有效拦蓄总量各项指标均高于格木＋柚木混交林和对照纯林。【结论】6年生珍贵树种多树种混交林凋落物现存量不具明显优势,但养分分解速率较快,凋落物N、P、K养分归还总量及持水性能均高于格木＋柚木混交林和对照纯林,南方珍贵树种多树种混交模式具有可行性。 S725.2; [目的]探讨南方珍贵树种多树种随机混交栽培的可行机制,为广西营造珍贵树种优良经营模式提供理论依据.[方法]采用样地调查和室内分析相结合的方法,分析6年生珍贵树种多树种混交林、格木+柚木、格木纯林和降香黄檀纯林4种林分类型的凋落物储量、养分特征及持水性能等生态特征.[结果]凋落物单位面积现存量为:格木+柚木混交林(4550.4 kg/ha)＞多树种混交林(3984.9 kg/ha)＞降香黄檀纯林(2198.1 kg/ha)＞格木纯林(1862.4 kg/ha);多树种混交林凋落物层C/N为20.98∶1,半分解层凋落物储量占凋落物储量的49.34％,养分分解速率高于其他林分类型,且全量N、P、K养分归还总量最高,为66.67 kg/ha.多树种混交林凋落物自然含水率(量)、最高持水率(量)及有效拦蓄总量各项指标均高于格木+柚木混交林和对照纯林.[结论]6年生珍贵树种多树种混交林凋落物现存量不具明显优势,但养分分解速率较快,凋落物N、P、K养分归还总量及持水性能均高于格木+柚木混交林和对照纯林,南方珍贵树种多树种混交模式具有可行性. |
| Author | 何应会 曾佩玲 韦铄星 林建勇 黄惠章 |
| AuthorAffiliation | 广西林业科学研究院,南宁530002 南宁市林业技术推广站,南宁530022 南宁市丁当林场,南宁530001 |
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| Author_FL | HE Ying-hui ZENG Pei-ling LIN Jian-yong HUANG Hui-zhang WEI Shuo-xing |
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| ClassificationCodes | S725.2 |
| ContentType | Journal Article |
| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DOI | 10.3969/j:issn.2095-1191.2015.1.85 |
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| DocumentTitleAlternate | Litter standing crop and its water-holding capacity of the mixed forest of rare tree multi-species |
| DocumentTitle_FL | Litter standing crop and its water-holding capacity of the mixed forest of rare tree multi-species |
| EndPage | 90 |
| ExternalDocumentID | gxnykx201501016 663884048 |
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| Keywords | 珍贵树种 rare tree species mixed forest of multi-species water-holding capacity 持水性能 多树种混交 凋落物现存量 litter reserve |
| Language | Chinese |
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| Notes | 45-1381/S rare tree species; mixed forest of multi-species; litter reserve ; water-holding capacity [Objective]A feasible mechanism for randomly mixed way of rare tree multi- species in southern China was explored to provide preliminary theoretical references for creating excellent managing modes for rare tree multi- species in Guangxi. [ Method ] By adopting the combination of sample plot survey and indoor analysis method, the under- growth litter reserves, nutrient and water-holding capacity of 6-year mixed forest of multi species, Erythrophloeum fordii and Teetona grandis mixed forest, Erythrophloeum fordii pure forest and Dalbergia odorifera pure forest were studied. [Result]The results indicated that litter standing crop was Erythrophloeum fordii and Tectona grandis mixed forest （4550.4 kg/ha ） 〉mixed forest of multi species （ 3984.9 kg/ha） 〉 Dalbergia odorifera （2198.1 kg/ha ）and Erythrophloeum fordii （1862.4 kg/ha）pure forest. C/N of mixed forest of multi-species was 20.98：1, meanwhile the proportion of |
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| PublicationTitle | 南方农业学报 |
| PublicationTitleAlternate | Journal of Southern Agriculture |
| PublicationTitle_FL | Journal of Southern Agriculture |
| PublicationYear | 2015 |
| Publisher | 广西林业科学研究院,南宁,530002%南宁市林业技术推广站,南宁,530022%南宁市丁当林场,南宁,530001 |
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| Snippet | 【目的】探讨南方珍贵树种多树种随机混交栽培的可行机制,为广西营造珍贵树种优良经营模式提供理论依据。【方法】采用样地调查和室内分析相结合的方法,分析6年生珍贵树种多树种... S725.2; [目的]探讨南方珍贵树种多树种随机混交栽培的可行机制,为广西营造珍贵树种优良经营模式提供理论依据.[方法]采用样地调查和室内分析相结合的方法,分析6年生珍贵树... |
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| StartPage | 85 |
| SubjectTerms | 凋落物现存量 多树种混交 持水性能 珍贵树种 |
| Title | 珍贵树种多树种混交林的凋落物现存量及持水性能 |
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