西双版纳国家级自然保护区植物多样性调查研究

本项目是调查研究西双版纳国家级自然保护区植物多样性分布特点和规律。 1、查清了热带林在保护区内的群落数量、结构层次、动态演替以及珍稀频危保植物的分布，是迄今为止对保护区植物多样性最全面的科学阐述。 2、运用吴征镒植物地理学的原理与方法全面系统地研究保护区植物区系，用计算机数据库程序建立1个有2520种植物地理成分总数据库，从中分出12个子数据库，植物区系统计分析均在各子数据库中进行。 3、提出版纳青林属于季节雨林而不是山地雨林，这对研究我国南部热带林分布规律有极其重要的意义。 4、用生物地理区划系统，提出保护区属于泰国季雨林单元，滇、缅、泰热带共有种多，但地区特有种少。 本研究有突出的植物生态学和植物地理学意义，是我国南部中南半岛地区植物景观和植物区系多样性保护、生态建设和可持续发展的科学依据。 该项目已经发挥，也必将继续发挥积极的社会与生态效益 例如：在吸引世界自然基金（WWF）、全球环境基金会（GEF）、国际热带林保护组织（ITTO）、加拿大国际发展研究中心（IDRC）、国际保护组织（IC）等国际组织对保护区建设的支持中，都发挥了重要作用。

This project investigates the distribution characteristics and patterns of plant diversity in the Xishuangbanna National Nature Reserve.
1. It has clarified the community quantity, structural layers, dynamic succession of tropical forests within the reserve, as well as the distribution of rare and endangered plants, representing the most comprehensive scientific elaboration of plant diversity in the reserve to date.
2. Adopting the principles and methods of Wu Zhengyi's phytogeography, it conducted a comprehensive and systematic study on the flora of the reserve. A master database containing 2520 plant geographic elements was established via computer database programs, which was divided into 12 sub-databases. Statistical analyses of the flora were carried out within each sub-database.
3. It proposed that the Banna evergreen forest belongs to seasonal rainforest rather than montane rainforest, which is of great significance for studying the distribution patterns of tropical forests in southern China.
4. Using the biogeographic regionalization system, it proposed that the reserve belongs to the Thai seasonal forest unit, with a large number of co-occurring tropical species among Yunnan, Myanmar and Thailand, but few regional endemic species.

This research has prominent significance in plant ecology and phytogeography, and serves as a scientific basis for the conservation of plant landscape and flora diversity, ecological construction and sustainable development in the Indochina Peninsula region of southern China.

This project has already exerted and will continue to exert positive social and ecological benefits. For example, it has played an important role in attracting support for the reserve's construction from international organizations including the World Wide Fund for Nature (WWF), the Global Environment Facility (GEF), the International Tropical Timber Organization (ITTO), the International Development Research Centre (IDRC), and International Conservation (IC).