Response of Understory Plant Diversity to Nitrogen Deposition in Subtropical Chinese Fir Plantation Forest

WU Jian-ping; LIU Wen-fei; YUAN Ying-hong; HUANG Rong-zhen; FAN Hou-bao; LIAO Ying-chun; LIN Wen-long

doi:10.13961/j.cnki.stbctb.2014.04.030

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Response of Understory Plant Diversity to Nitrogen Deposition in Subtropical Chinese Fir Plantation Forest

- Response of Understory Plant Diversity to Nitrogen Deposition in Subtropical Chinese Fir Plantation Forest
- Bulletin of Soiland Water Conservation Vol. 33, Issue 4, Pages: 87-90(2014)
- 作者机构：
  
  1. 南昌工程学院生态与环境科学研究所,江西,南昌,330099
  2. 福建沙县官庄国有林场, 福建沙县,365504
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2014.04.030
  CLC：
- Published：2014
- 稿件说明：
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WU Jian-ping, LIU Wen-fei, YUAN Ying-hong, et al. Response of Understory Plant Diversity to Nitrogen Deposition in Subtropical Chinese Fir Plantation Forest[J]. Bulletin of Soiland Water Conservation, 2014, 33(4): 87-90.
DOI：

WU Jian-ping, LIU Wen-fei, YUAN Ying-hong, et al. Response of Understory Plant Diversity to Nitrogen Deposition in Subtropical Chinese Fir Plantation Forest[J]. Bulletin of Soiland Water Conservation, 2014, 33(4): 87-90. DOI： 10.13961/j.cnki.stbctb.2014.04.030.

摘要

基于野外长期控制试验

研究了氮沉降7 a后人工杉木林下植物多样性的响应。试验处理分为N

[(Control)

0 kg/(hm

·a)

]

[60 kg/(hm

·a)

]

[120 kg/(hm

·a)

]

[240 kg/(hm

·a)

]

。林下植物中共发现51种植物

隶属34科

45属。随着氮沉降的增加

呈现出植物α多样性指数减少

而β

多样性指数增加的趋势

群落相似性指数明显降低。去趋势对应分析排序(detrended correspondence analysis

DCA)结果表明

氮沉降改变了植物群落结构。其中

菝葜和沿海紫金牛在4个处理中均有发现

为广适种。毛冬青、粗叶榕、毛花连蕊茶、毛枝连蕊茶、香附子这几种植物在N

-N

处理中有发现

属于较耐受种。茅莓、羊乳、羊角藤、琴叶榕、紫麻、杜虹花、乌蔹莓、海金莎均为一般耐受种

在N

和N

处理中有发现。另外

黄瑞木、黄樟等16种植物可能为敏感种

仅可在N

处理中发现。总之

亚热带森林植物多样性受到了氮沉降增加的不利影响

应针对某些濒危植物种类实施合理的保育措施。

Abstract

Based on the long-term field manipulation experiment

the response of understory plants to 7 years of nitrogen deposition in a Chinese fir(Cunninghamia lanceolata) forest was investigated. The quantities of experimental N added and treatment codes were N0[(Control); 0 kg/(hm2·a)]; N1[60 kg/(hm2·a)]; N2[120 kg/(hm2·a)]; N3[240 kg/(hm2·a)]. The result showed that the totally 51 species belong to 34 families

45 generas. Along with the increase of nitrogen deposition

plant species

families and genera were all decreased. In addition

both Shannon-Weiner index and Simpson diversity index reduced

but Whittaker index increased with nitrogen deposition increase. Furthermore

Sorenson similarity index was decreased obviously. Detrended correspondence analysis(DCA) indicated that nitrogen deposition changed plant community composition. Plant species Smilax china and Ardisia punctata were found in the plots of four treatments

which would be the popular species. Plant species Ilex asprella

Ficus hirta

Camellia fraternal

Camellia trichoclada and Rhizoma cyperi were found in N0-N2 plots

which would be the resistant species. While Rubus parvifolius

Codonopsis lanceolata

Morinda umbellate

Ficus lyrata

Oreocnide frutescens

Callicarpa formosana

Herba cayratica and Lygodium japonicum were found in N0 and N1 plots

which would be less resistant species. Other 16 species such as Adinandra millettii and Cinnamomum parthenoxylon were only found in N0 plots

which would be the sensitive species. In conclusion

because plant diversity in the subtropical forest was negatively affected by nitrogen deposition

more attention should be paid to the plant conservation.

关键词

Keywords

references

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国家林业局森林资源管理司.第七次全国森林资源清查及森林资源状况[J].林业资源管理,2010,1(1):1-8.

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