廣州城區生態安全島森林生物量、葉片滯塵和物種多樣性研究

莫丹, 管東生, 劉淑雯, 黃康有, 梁雅丹

Research output: Contribution to journalArticlespeer-review

2 Citations (Scopus)

Abstract

通過樣方調查、植被生物量估算和植物葉片滯塵測定等途徑,研究廣州城區生態安全島森林的生物量、植物葉片滯塵和物種多樣性的作用。結果表明:①生態安全島植物群落的生物量介於69.61~371.34t·hm-2之間,碳儲量介於34.81~185.67t·hm-2之間。隨著植物群落的正向演替,生物量和碳儲量不斷增加。②不同採樣點植物滯塵量存在顯著性差異(p<0.05),基本反映由市中心向市郊逐漸減少的趨勢。單位葉面積滯塵量以葉面積大且腹面粗糙的對葉榕滯塵能力最強,為1.956g·m-2。③不同演替階段植物群落的豐富度、多樣性和均勻度具有顯著性差異(p<0.05),多樣性指數和均勻度指數較好地反映了不同演替階段植物群落在物種組成方面的差異;隨著演替的進程,喬木層的多樣性指數和均勻度指數不斷增加。

Using a sample-plot survey method, estimating forest biomass and determining foliar dusts, this study dealt with carbon storage, foliage dust retention and species diversity in some ecological safety islands located in urban Guangzhou. The results show that: (1) The biomass varied from 69.61 t · hm-2 to 371.34 t · hm-2, while the carbon contents ranged from 34.81 t · hm-2 to 185.67 t · hm-2. The communities in the ecological protection islands were in positive succession, and the biomass and carbon contents increased accordingly. (2) The amount of dust retention by tree leaves varied significantly at the 0.05 level in different plots, which reflected a decreasing trend along an urban-suburban gradient. Ficus hispida had the highest dust-retention amount per unit leaf area(1.956 g · m-2), because it has the largest leaf area and a rough foliar surface. (3) The species richness, species diversity and evenness in the tree layer of plant communities in the ecological protection islands were significantly different at the 0.05 level among different succession stages. The species diversity and evenness indicated different species compositions in different succession stages. As the positive succession continues, the species diversity and evenness in the tree layer increase constantly. Copyright © 2011 中國科學院生態環境研究中心.

Original languageChinese (Simplified)
Pages (from-to)666-672
Journal環境科學學報
Volume31
Issue number3
Publication statusPublished - Mar 2011

Citation

莫丹、管東生、劉淑雯、黃康有和梁雅丹(2011):廣州城區生態安全島森林生物量、葉片滯塵和物種多樣性研究,《環境科學學報》,31(3),頁666-672。

Keywords

  • 生物量
  • 葉片滯塵
  • 物種多樣性
  • 生態安全島森林
  • 廣州城區
  • Alt. title: Biomass, foliar dust and species diversity of forests in ecological safety islands of urban Guangzhou
  • Biomass
  • Foliar dust
  • Species diversity
  • Forests in ecological safety island
  • Urban Guangzhou