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生态学杂志 ›› 1998, Vol. ›› Issue (2): 11-15.

• 研究报告 • 上一篇    下一篇

淮河下游地区针叶林多样性研究

阎传海   

  1. 徐州师范大学地理系, 221009
  • 收稿日期:1996-08-20 修回日期:1996-12-18 出版日期:1998-04-10

A Study of Diversity of the Coniferous Forest in the Lower Huaihe Valley

Yan Chuanhai   

  1. Department of Geography, Xuzhou Normal University, 221009
  • Received:1996-08-20 Revised:1996-12-18 Online:1998-04-10

关键词: 复羽叶栾树, 种子萌发, 聚乙二醇, 外源钙, 干旱胁迫

Abstract: The spatial pattern of diversity of the coniferous forest in the lower Huaihe valley and its relation to the climate were studied in the paper.Species diversity index(SDI),community evenness index(CEI)and ecological dominance index(EDI)were used to measure the diversity. The potential evapo-transpiration by Penman’s method was adopted to analyse the characteristics of the climate. The results showed:(1)SDI, CEI and EDI for coniferous forest were 0.07~1.52,0.07~0.59 and 0.36~0.98 respectively. The diversity of coniferous forest increased from the north/west to the south/east.(2)Diversity pattern of the coniferous forest corresponded to the regional differentiation of aridity. Finnally, the proposals for the biodiversity conservation in the study region were put forward.

Key words: Koelreuteria paniculata, seed germination, polyethylene glycol, exogenous Ca2+, drought stress.