外來物種入侵對(duì)生物多樣性的影響

16200字 23頁


摘 要:在經(jīng)濟(jì)全球化的今天，外來物種入侵已日益成為一個(gè)全球性的熱點(diǎn)問題。過去的高山險(xiǎn)脈、海洋河流和交通不便等阻礙外來物種有意或無意的引入的自然因素在貿(mào)易全球化的今天和旅游業(yè)飛速發(fā)展的條件下已逐漸淡化，外來物種隨著人口流動(dòng)和交通運(yùn)輸已大量的傳入。由于自然生態(tài)系統(tǒng)的錯(cuò)綜多樣，人員流動(dòng)，物品流動(dòng)太過頻繁，所以外來物種的傳入不易受到監(jiān)控，因此生物入侵的危害在全球都已經(jīng)十分嚴(yán)峻。本文主要在我國以及國外已有的外來入侵物種調(diào)查研究的基礎(chǔ)上， 分析其主要的入侵途徑、經(jīng)濟(jì)和自然危害，探討如何有效防治外來物種入侵的方法，為保護(hù)世界生物多樣性的安全和減少物種入侵帶來的損失獻(xiàn)計(jì)獻(xiàn)策。
關(guān)鍵詞：外來物種入侵 損失 生物多樣性 防治方法

comprehensive eva luation and early warning method of the impact of invasive species on biodiversity
Abstract: In the economic globalization today, invasive species has increasingly become a global hot issue. Past alpine insurance veins, rivers and inaccessible marine alien species, such as obstruction, intentionally or unintentionally introduced natural factors have gradually fade under the conditions today, the rapid development of trade and tourism, globalization, migration and alien species with transportation have a lot of incoming. Because of the intricate and diverse natural ecosystems, the movement of persons, goods flow too frequently, so the incoming alien species susceptible to monitoring, therefore harm biological invasions in the world have been very severe. In this paper, the basis of invasive alien species and research abroad has been on the analysis of the main invasion route, economic and natural hazards, explore ways how to effectively control invasive alien species, in order to protect the safety of the world's biodiversity and reduce losses caused by invasive species brainstorming

key words：Invasive alien species; loss; Biodiversity; Control methods.


目 錄

第一章 物種入侵 5
1.1 物種入侵的概念 5
1.2我國物種入侵的實(shí)例 5
1.3中國入侵種的主要特點(diǎn) 7
第二章 物種入侵評(píng)估方法及預(yù)警方法 9
2.1入侵物種特征 9
2.2入侵途徑 9
2.3入侵機(jī)制 10
2.4評(píng)估方法 12
2.5生物入侵的危害 15
2.6對(duì)外來種問題認(rèn)識(shí)不足 17
2.7針對(duì)物種入侵的防治對(duì)策 18
總 結(jié) 21
致 謝 22
參考文獻(xiàn) 23