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[1]GAO Yuan,WANG Jifei,YANG Junlong,et al.Relationship Between Bryophytes Communies and Environment of Qinghai Spruce (Picea crossifolia) in Helan Mountain of Ningxia[J].Research of Soil and Water Conservation,2019,26(01):221-226,233.

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Relationship Between Bryophytes Communies and Environment of Qinghai Spruce (Picea crossifolia) in Helan Mountain of Ningxia

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 26 Number of periods: 2019 01 Page number: 221-226,233 Column: Public date: 2019-02-28

Title:: Relationship Between Bryophytes Communies and Environment of Qinghai Spruce (Picea crossifolia) in Helan Mountain of Ningxia

Author(s):: GAO Yuan¹, WANG Jifei^3,4, YANG Junlong¹, WANG Wenxiao¹, LI Jingyao³, LI Xiaowei^1,2; 1. College of agriculture, Ningxia University, Yinchuan 750021, China;
2. State Key Laboratory Breeding Base of Land Degradationand Ecological Restoration of Northwest China, Ningxia University, Yinchuan 750021, China;
3. Ningxia Helan Mountain National Nature Reserve Management Bureau, Yinchuan 750021;
4. College of Wildlife Resources, Northeast Forestry University, Harbin 150040, China

Keywords:: eastern slope of Helan Mountain; Picea crossifolia forest; bryophytes; species composition; environmental factor

CLC:: Q948.1

DOI:: -

Abstract:: As an environmental indicator, bryophytes are widely used in various fields of ecology. This study took bryophyte community of Picea crassifolia on the eastern slope of Helan Mountain as research object. Fifteen plots were set up along the eastern slope. Redundancy analysis (RDA) was performed to reveal the relationship between bryophyte community structure and environmental factors in Helan Mountain. The results showed that all 485 samples from 15 plots were terrestrial mosses, belonging to 36 species and 19 genera in 14 families; the main families are Pottiaceae, Hypnaceae, Brachytheciaceae, Ditrichaceae and Mniaceae, accounting for 69.44% of the total number of bryophytes; The rank order of important values of bryophytes species in 15 plots showed that the dominant species were Hypnum cupressiforme, Abietinella abietina, Trachycystis ussuriensis, Timmia megapolitana, Brachythecium pulchellum, Distichium capillaceum, Grimmia anodon, Entodon concinnus, Ditrichum flexicaule and Syntrichia sinensis. The important value of the Hypnum cupressiforme is 0.417 6, which is the constructive species of bryophytes community, this also indicates that the Picea crossifolia on the eastern slope of Helan is relatively dry. The results of RDA showed that altitude(F=5.124, p=0.010), Aspect(F=3.114, p=0.034), mean annual precipitation (F=2.598, p=0.050), mean annual temperature(F=3.357, p=0.030), were the main factors influencing the distribution of bryophytes. The first and second principal axes can explain 63.20% of the variance in bryophyte community. The results can provide theoretical basis for the protection and rational utilization of bryophytes in Helan Mountain.

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