中国主要外来植物入侵趋势分析  

Analysis of Invasion of Alien Plants in China

作　　者：姜景鹤 JIANG Jing-he(Lifesciences Institute of Sun Yat-sen University,Guangzhou 510000,China)

机构地区：[1]中山大学生命科学学院,广州510000

出　　处：《价值工程》2018年第21期289-293,共5页Value Engineering

摘　　要：生物入侵是主要由人类活动引起的的物种长距离扩散并对生态系统造成一定影响的过程。许多外来生物入侵改变了入侵地的群落结构和生态系统功能,造成入侵地生物多样性的丧失以及巨大的经济损失。此研究旨在通过还原中国主要外来植物的入侵历史,探究这些物种在中国的入侵规律和扩散趋势,为预防控制外来物种入侵提供借鉴。此研究依由大到小的尺度完成三个部分:(1)调查了我国主要外来植物的入侵地点;(2)筛选出路径较为明确的百种植物并分析出其入侵趋势;(3)针对几种主要的入侵路线分析其形成原理。结果显示,我国外来植物的主要入侵地点分布在东南沿海,西南国界与辽东半岛地区次之。同时,在外来植物入侵和扩散的过程中,人类活动的影响极为重要,甚至突破一些自然条件的限制。因此,在防控外来生物入侵时,应将首先考虑人为因素。Biological invasion is an ecological process mainly brought about by citizens＇ activities. Invasive alien species have already given birth to series of serious destruction worldwide.At the same time, the transformation in ecosystems which has led directly to some species＇ extinctions will probably result in a reduction of biodiversity, threatening the global biodiversity and creating significant economic losses. This research is conducted from macro to micro scale：（1） Complementing the statistic of the main alien species in China and their landing sites;（2）Screening out the invasive trends of hundreds of alien plants with specific pathways;（3）Analyzing the causes of several precise pervading routes.It is apparent to see in the results that the main invasive area in China is the southeast coast, followed by the southwest border and Liaodong peninsula. At the same time, in the procedures of pervading, human migration is the crucial part of dynamics,which even overweights natural factors. So it is the most important to control human determinants when preventing biological invasion.

关 键 词：外来植物 生态入侵 入侵趋势 扩散动力 

分 类 号：Q16[生物学—普通生物学]