Original article

STRUCTURE AND SPECIES COMPOSITION OF GROUND BRYOPHYTE COMMUNITY OF HIGH-ALTITUDE YOUNG SILVICULTURAL CUTOVERS IN RANGTANG COUNTY, CHINA: EVALUATION ON EFFECTS OF CLEAR- CUTTING AND SILVICULTURAL MANAGEMENT

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  • Chengdu Institute of Biology, Chengdu 610041, China

Received date: 2007-11-19

  Accepted date: 2008-01-31

  Online published: 2008-07-30

Abstract

Aims Traditional forestry management influences biodiversity. Revealing effects of clear-cutting and silvicultural history on ground bryophyte communities is important for evaluating impacts of forest management on biodiversity.

Methods We selected four sites with similar physical conditions but different development phases in Rangtang County. We investigated bryophyte and vascular plant vegetation, including species composition and structural characteristics, in 30 plots in each site. ANOVA analysis was used to detect differences among bryophyte communities, and the relationship between vascular plant and bryophyte communities was examined by partial correlations.

Important findings Bryophyte composition changed significantly during developmental processes of young forests. Photophilic or pleurocarpous mosses were dominant species, while some hygrophilous mosses expanded their populations and become dominant species locally and drought-tolerant species occurred because of disturbance. Richness index (22-37) and diversity index (0.37-1.08) increased during the process of development, and the four young forestlands had differences in structural characteristics. There was a positive relationship between cover of tree and shrub layers and development of bryophytes. Shrub layer significantly promoted bryophyte richness, while pioneer grass with strong development and litter restrained bryophyte development. Characteristics of development in tree, shrub, litter layer and their interaction changed dynamically during the developmental process. Promoting development of tree and shrub layers has an important role on enhancing bryophytes.

Cite this article

YAN Xiao-Li, BAO Wei-Kai . STRUCTURE AND SPECIES COMPOSITION OF GROUND BRYOPHYTE COMMUNITY OF HIGH-ALTITUDE YOUNG SILVICULTURAL CUTOVERS IN RANGTANG COUNTY, CHINA: EVALUATION ON EFFECTS OF CLEAR- CUTTING AND SILVICULTURAL MANAGEMENT[J]. Chinese Journal of Plant Ecology, 2008 , 32(4) : 815 -824 . DOI: 10.3773/j.issn.1005-264x.2008.04.010

References

[1] Alaback P (1982). Dynamics of under storey biomass in Sitka spruce-western hemlock forests of south-east Alaska. Ecology, 63,1932-1948.
[2] Bao WK (2005). Structural features of Polytrichum formosum Hedw. populations along a habitat sequence of cutover restoration in the eastern Tibetan Plateau . Ecological Research, 20,701-707.
[3] Bao WK (包维楷), Zhang YL (张镱锂), Wang Q (王乾), Bai WQ (摆万奇), Zheng D (郑度) (2002a). Plant diversity along a time sequence (1-30 years) of artificial forest rehabilitation on subalpine cutland in the eastern Qinghai-Tibetan Plateau. Acta Phytoecologica Sinica (植物生态学报), 26,330-338. (in Chinese with English abstract)
[4] Bao WK (包维楷), Zhang YL (张镱锂), Wang Q (王乾), Bai WQ (摆万奇), Zheng D (郑度) (2002b). Rehabilitation and degradation for subalpine coniferous forest on the upper reaches of Dadu River of eastern Tibetan Plateau. Journal of Mountain Science (山地学报), 2,194-198. (in Chinese with English abstract)
[5] Bardat J, Aubert M (2007). Impact of forest management on the diversity of corticolous bryophyte assemblages in temperate forests. Biological Conservation, 39,47-66.
[6] Bazzaz FA (1975). Plant species diversity in old-field successional ecosystems in southern Illinois. Ecology, 56,485-488.
[7] Busby JR, Bliss LC, Hamilton CD (1978). Microclimatic control of growth rates and habitats of the boreal forest mosses, Tome nthypnum nitens and Hylocomium splendsens. Ecological Monographs, 48,95-110.
[8] Cao T (曹同), Guo SL (郭水良) (2000). A study on bryophytes diversity in the main ecosystems in Changbai Mountain. Biodiversity Science (生物多样性), 8,50-59. (in Chinese with English abstract)
[9] Esseen PA, Ehnstrom B, Ericson L, Sjoberg K (1997). Boreal forest. Ecological Bulletin, 46,16-47.
[10] Hartley MJ (2002). Rationale and methods for conserving biodiversity in plantation forests. Forest Ecology and Management, 155,81-95.
[11] Humphrey JW, Davey S, Peace AJ, Ferris R, Harding K (2002). Lichens and bryophyte communities of planted and semi-natural forests in Britain: the influence of site type, stand structure and deadwood. Biological Conservation, 107,165-180.
[12] Jalonen J, Vanh-Majamaa I (2001). Immediate effects of four different felling methods on mature boreal spruce forest understorey vegetation in south Finland. Forest Ecology and Management, 146,25-34.
[13] Kantvilas G, Jarman SJ (2004). Lichens and bryophytes on Eucalyptus obliqua in Tasmania: management implications in production forests . Biological Conservation, 117,359-373.
[14] Kappelle M, Kennis PAFde Vries RAJ (1995). Changes in diversity along a successional gradient in a Costa Rican upper montane Quercus forest . Biodiversity and Conservation, 4,10-34.
[15] Lei B (雷波), Bao WK (包维楷), Jia Y (贾渝) (2004). Ground bryophyte composition and synusia structure under six types of young coniferous forest plantations in the upper Minjiang River. Acta Phytoecologica Sinica (植物生态学报), 28,594-600. (in Chinese with English abstract)
[16] Liu JH (刘俊华), Bao WK (包维楷), Li FL (李芳兰) (2005). Major bryophyte patch structures and their relationships with environmental factors under a coniferous forest of eastern Tibetan Plateau. Ecology and Environment (生态环境), 14,735-741. (in Chinese with English abstract)
[17] Longton RE (1988). Bryology of Polar Bryophytes and Lichens. Cambridge University Press, Cambridge,141-299.
[18] Newmaster SG, Bell FW (2002). The effects of silvicultural disturbances on cryptogam diversity in the boreal-mixedwood forest. Canadian Journal of Forest Research, 32,38-51.
[19] Okanland T, Rydgren K, Okland RH, Storaunet KO, Rolstad J (2003). Variation in environmental conditions, understorey species number, abundance and composition among natural and managed Picea abies forest stands . Forest Ecology and Management, 177,17-37.
[20] Ross-Davis AL, Frego K (2002). Comparison of plantations and naturally regenerated clearcuts in the Acadian Forest: forest floor bryophyte community and habitat features. Canadian Journal of Forest Research, 80,21-33.
[21] The Editorial Board of Alpine Forest Handbook (高山营林手册编辑委员会) (1982). Alpine Forest Handbook (高山营林手册). Sichuan Publishing House of Science and Technology, Chengdu. (in Chinese)
[22] The Editorial Board of Forests in Siehuan (四川森林编辑委员会) (1992). Forests in Sichuan. China Forestry Publishing House, Beijing. (in Chinese)
[23] Vanderpooten A, Sotiaux A, Sotiaux O (2001). Integrating bryophytes into a forest management plan: lessons from grid-mapping in the forest of Soignes (Belgium). Cryptogamie Bryologie, 22,217-230.
[24] Vellak K, Paal J (1999). Diversity of bryophyte vegetation in some forest types in Estonia: a comparison of old unmanaged and managed forests. Biodiversity and Conservation, 8,1595-1620.
[25] Wang Q (王乾), Wu N (吴宁), Luo P (罗鹏), Yi SL (易绍良), Bao WK (包维楷), Shi FS (石福孙) (2007). Moss growth rate and its environmental determinants in subalpine coniferous forest and clear cut land in eastern Tibetan Plateau, China. Journal of Plant Ecology (Chinese Version) (植物生态学报), 31,464-469. (in Chinese with English abstract)
[26] Wulf M (2004). Plant species richness of afforestations with different former use and habitat continuity. Forest Ecology and Management, 195,191-204.
[27] Xu J (徐杰), Bai XL (白学良), Khasbagan (哈斯巴根), Suyalatu (苏亚拉图) (2007). Effect of different habitats on the diversity and richness of bryophyte in Erdos Region. Journal of Inner Mongolia Normal University (Natural Science Edition) (内蒙古师范大学学报(自然科学版)), 36,98-103. (in Chinese with English abstract)
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