Plant Diversity ›› 2012, Vol. 34 ›› Issue (01): 81-88.doi: 10.3724/SP.J.1143.2012.11131

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A Note on a Scleromicrophyllous Evengreen Broadleaved ForestAssociation Olea ferruginea, Pistacia weinmannifolia in Lancang (Upper Mekong) River

 WANG  Chong-Yun-1, CHEN  Mei-Qing-1, HE  Zhao-Rong-1, BANG  Ming-Chun-1, LI  Qi-Yang-1, OU  Guang-Long-1、2, LANG  Xue-Dong-1、3, DANG  Cheng-Lin-1   

  1. 1 Institute of Ecology and Geobotany, Yunnan University, Kunming, 650091, China; 2 Key Laboratory of Biodiversity
    Conservation in Southwest China State Forest Administration, Southwest Forestry University, Kunming, 650224, China;
    3 Institute of Resource Insects, Chinese Academy of Forestry, Kunming 650224, China
  • Received:2011-09-09 Online:2012-02-25 Published:2011-12-12
  • Supported by:

    国家自然科学基金项目(31160080)

Abstract:

 An unique scleromicrophyllous evergreen broadleaved community in the valley of Lancang (upper Mekong) River was recorded using the methodology of BraunBlanquet’s relevé. The plant community was nominated by Association Olea ferruginea, Pistacia weinmannifolia. It was mainly happened at altitude 1300m to 1900m above sea level along the river banks. Its physiognomy, life/growth form, and floristic components were summarized, depending fieldcollected releves. The results indicated community structure was relatively simple, with average species number of 18; Phanerophytes were the most common life form, and growth form was dominated by herbs; There were 116 vascular species, 39 families, and 84 genera in 15 relevés; Its flora had a tropical characteristics at family and genus level. This association was supposed to be a relic vegetation of paleomediterrean subtropical vegetation which is characterized by small and scelrophyllous leaves. With growing human impact of dams construction, this plant community type which remains and evolves in a narrow valley were worth of protection and further research.

 

Key words: Sclerophyllous evergreen broad-leaved forest, Physiognomy, Life form, Growth form, Flora

CLC Number: 

  • Q 948