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Plant Diversity ›› 2015, Vol. 37 ›› Issue (01): 93-98.DOI: 10.7677/ynzwyj201514051

• 研究论文 • 上一篇    下一篇

云南西双版纳地区森林转型特征

 翟德利1、2、3, 许建初1、2, 戴志聪3   

  1. 1 中国科学院昆明植物研究所山地生态系统研究中心,昆明650201;2 世界混农林中心 (ICRAF) 中亚东亚办公室,
    昆明650201;3 江苏大学环境与安全工程学院环境生态研究所,江苏 镇江212013
  • 收稿日期:2014-03-25 出版日期:2015-01-25 发布日期:2014-07-29
  • 基金资助:

     National Natural Science Foundation of China (31300403); China Pastdoctoral Science Foundation (2013M540722); CGIAR Research Program 6: Forests, Trees, and Agroforestry

Forest Transition in Xishuangbanna, Yunnan

 ZHAI  De-Li-1、2、3, XiU  Jian-Chu-1、2, DAI  Zhi-Cong-3   

  1. 1 Center of Mountain Ecosystem System (CMES), Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201,
    China; 2 World Agroforestry Centre (ICRAF), Central and East Asia Office, Kunming 650201, China; 3 Institute of Environment
    and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
  • Received:2014-03-25 Online:2015-01-25 Published:2014-07-29
  • Supported by:

     National Natural Science Foundation of China (31300403); China Pastdoctoral Science Foundation (2013M540722); CGIAR Research Program 6: Forests, Trees, and Agroforestry

摘要:

森林转型是指森林覆盖率由净减少到净增加的过程。中国森林早在20世纪80年代就进入了转型期,然而,中国热带地区的总森林覆盖率虽呈增长趋势,但依旧存在着天然林大量被毁的现象。鉴于天然林对森林生态系统功能的重要作用,本研究通过加入森林类型分类的内容,以西双版纳为例探讨其森林转型的真实特征。结果表明:森林转型理论单纯以“总森林”覆盖率为研究对象,忽视了其他森林类型的动态变化,甚至掩盖了“天然林”的真实动态变化。西双版纳的森林转型主要是人工种植林的扩张所致,只是树木数量统计上的转型。事实上,自1988年以来,西双版纳的天然林一直在锐减。所以建议未来关于森林转型的研究应将“森林”区分成不同的森林类型加以研究。

关键词: 西双版纳, 森林转型, 森林类型, 毁林, 橡胶林

Abstract:

Forest transition is a process of overall forest cover from net loss to net gain over time. Forest transition especially the process after turning point from deforestation to reforestation has inspired lots of researches for its potential to improve environmental services. China has undergone forest transition since the 1980s. However, in tropical China, deforestation was still existed, while the overall forest cover increased greatly. To investigate this issue, we conducted this research by classifying overall forest into natural forest and plantation in Xishuangbanna, which has  undergone forest transition and deforestation and overall forest cover increasing. We found that natural forest continues decreasing while overall forest cover increasing and plantation expansion in forest transition. The forest transition in Xishuangbanna was found to be a tree cover transition, which was mainly contributed by large plantation expansion. In Xishuangbanna, deforestation is still undergoing after its overall forest cover transition occurred in 1988. The general overall forest definition used by forest transition will not be able to recognize deforestation when natural forests are displaced by plantations because the overall forest cover remains unchanged or even increasing. We therefore recommended to classify forest types in forest transition researches.

Key words: Xishuangbanna, Forest transition, Forest type, Deforestation, Rubber plantation

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