[1]何芳兰,徐先英,尉秋实,等. 祁连山青海云杉人工林与天然林群落结构特征及物种多样性比较研究[J].西北林学院学报,2016,31(5):1-7.[doi:10.3969/j.issn.1001-7461.2016.05.01]
　HE Fang-lan,XU Xian-ying,YU Qiu-shi,et al. A Study on the Comparison of Community Structural Characteristics and Species Diversity Between Plantations and Natural Forests of Picea Crassifolia in Qilian Mountains[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2016,31(5):1-7.[doi:10.3969/j.issn.1001-7461.2016.05.01]
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 祁连山青海云杉人工林与天然林群落结构特征及物种多样性比较研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第31卷
期数:
2016年第5期
页码:
1-7
栏目:
出版日期:
2016-09-30

文章信息/Info

Title:
 A Study on the Comparison of Community Structural Characteristics and Species Diversity Between Plantations and Natural Forests of Picea Crassifolia in Qilian Mountains
文章编号:
1001-7461(2016)05-0001-07
作者:
 何芳兰1; 2; 3; 徐先英2; 尉秋实2; 刘虎俊2; 贺访印2; 马俊梅2; 金红喜2*
 （1.甘肃河西走廊森林生态系统国家定位观测研究站，甘肃 武威 733000；2.甘肃省治沙研究所，甘肃 兰州 730070；3.兰州大学 草地农业科技学院，甘肃 兰州 730020）
Author(s):
HE Fang-lan1; 2; 3; XU Xian-ying2; YU Qiu-shi2; LIU Hu-jun2; HE Fang-yin2; MA Jun-mei; JIN Hong-xi2*
 (1.Gansu Hexi Corridor Forest Ecosystem National Research Station,Wuwei,Gansu 733000,China; 2.Gansu Desert Control Research Institute,Lanzhou,Gansu 730070,China; 3.College of Pastoral Agriculture Science and Technology,Lanzhou University,Lanzhou,Gansu 730020,China)
关键词:
 ; 祁连山; 青海云杉; 人工林; 物种多样性
Keywords:
 ; Qilian Mountains;  Picea crassifolia;  plantation;  species diversity
分类号:
S718.55
DOI:
10.3969/j.issn.1001-7461.2016.05.01
文献标志码:
A
摘要:
 采用时空互代方法，以祁连山青海云杉人工林（70年代、2002年）、天然林为研究对象，分析人工林不同发育阶段群落结构特征和物种多样性变化及其与天然林之间的异同性。结果表明：其群落物种组成、生活型谱、物种多样性及乔木层林木径级分布均存在较大差异。1）70年代人工林出现了35个种（分属于19个科32属），2002年人工林出现27个种（分属于14科24属），天然云杉林样方内出现了40个种植物（分属于19科35属）；3种林地面芽植物种数均最多，其百分比值均在50%以上。2）3种林乔木层均为青海云杉；在灌木层中，2002年人工云杉林中尚未出现任何灌木，天然林和70年代人工林中有多种灌木出现，且天然林所有多样性指数值均大于70年代人工林，尤其是物种数、丰富度指数及均匀度Jsw指数分别是70年代人工林的2.17、2.07倍和3.06倍；在草本层中，3种林除丰富度指数和均匀度指数Jsw差异显著(P＜0.05)外，其余指数两两之间差异不显著。3)天然云杉林乔木层林木胸径主要分布在10~20 cm之间，树高主要分布在10~30 m之间，其林木株数在不同径级、不同高度分布均趋向于对称性概率分布；70年代和2002年云杉人工林乔木层林木地径分布在6.0~8.2 cm和2.3~3.2 cm之间，树高分布在3.0~3.7 m和1.0~1.5 m之间。这说明祁连山青海云杉林发育过程中，乔木层植被组成稳定、个体生长缓慢，而灌木层和草本层植被组成随人工林造林时间延长出现阶段性变化。
Abstract:
 To understand the vegetation dynamic changes of the plantations of Picea crassifolia in Qilian Mountains and its similarities and differences with natural forests,an investigation on vegetations of 48 quadrates of 16 sample plots from plantations (planted during 1970s and 2002,respectively) and natural forests of P.crassifolia was conducted during July to August,2013 by using the method of space series replacing time series.Significant similarities and differences were observed in the composition of community species,life form spectrum,species diversity,and the distribution of diameter class in arborous layer among 3 types of forests above mentioned.1) Thirty five plant species belonging to 32 genera and 19 families were found in the plantations planted during 1970s,while 27 belonging to 24 genera of 14 families were observed in those planted in 2002,and 40 belonging to 35 genera of 19 families were found in natural forests.The number of hemicryptophyte was the largest (over 50% of the total plant species) in three forests.2) Only P.crassifolia was in arborous layers in three forests.In shrub layer,no plant species was observed in the plantation built in 2002,and many plant species existed in shrub layers of natural forest and plantation built in 1970s.All of the diversity indices of natural forest were bigger than those of 1970s plantation,especially,the number of species and indices of richness and Jsw of the natural forest were 2.17,2.07 and 3.06 times more than those of 1970s plantation.All of the diversity indices of had no significant difference except for richness and Jsw.3) The values of diameter at breast height (DBH) of the trees growing in arborous layer of natural forest mainly distributed between 10 to 20 cm,and theirs heights mostly distributed between 10 to 30 m.Both distributions of the percentages of these plants in different classes of DBH and height tended to be symmetrical probability.The ground diameter values of trees planting in 1970s and 2002 distributed between 6.0-8.2 cm and 2.3-3.2 cm,and their heights distributed between 3.0 to 3.7 m and 1.0 to 1.5 m.The above results indicated that P.crassifolia forests distributing in Qilian Mountains exhibited the following characteristics during the course of development: the vegetation composition and individual development of arborous layer was stable and tardy,and the vegetation compositions of shrub and herb layers were change periodically.

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备注/Memo

备注/Memo:
 收稿日期：2015-11-20修回日期：2016-01-06
基金项目：国家科技支撑计划项目 (2012BAC08B02)；甘肃省林业厅天保科技支撑项目 (TBKJ1401)；甘肃省自然科学研究基金计划项目（1308RJYA081、1308RJZA267)。
作者简介：何芳兰，女，副研究员，在读博士，研究方向：荒漠植物生理生态及植被恢复与演替。E-mail：hefanglan2003@126.com
*通信作者：金红喜，男，副研究员，博士，研究方向：植物物种多样性及其生产力。E-mail：jinhxcha@163.com
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