| 景观破碎化与生物多样性的相关性 |
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| 引用本文： | 吴春燕,郝建锋.景观破碎化与生物多样性的相关性[J].安徽农业科学,2011,39(15):9245-9247,9294. |
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| 作者姓名： | 吴春燕 郝建锋 |
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| 作者单位： | 四川农业大学林学院;长江上游林业生态工程四川省重点实验室; |
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| 基金项目： | 四川农业大学双支计划博士专项基金(00370401) |
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| 摘 要： | 景观破碎化是制约生物多样性重要的＂瓶颈＂之一。人为干扰、生境岛屿化等是形成景观破碎化的主要原因,景观破碎化改变了物种生存所需的生物地理环境,物种生存空间锐减,减少了生物的物种多样性;改变了生态系统特性,影响系统内的物质流动和能量平衡,加剧了生态系统的破坏;改变了斑块面积,斑块密度和空间结构,引起景观格局变化,使景观多样性减少。笔者通过对上述方面的阐述,旨在更好地理解景观破碎化对生物多样性产生的深刻影响,并提出减少破碎化的实施措施。
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| 关 键 词： | 景观破碎化 物种多样性 人为干扰 生态系统 |
Landscape Fragmentation and Biodiversity Relativity |
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| WU Chun-yan et al.Landscape Fragmentation and Biodiversity Relativity[J].Journal of Anhui Agricultural Sciences,2011,39(15):9245-9247,9294. |
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| Authors: | WU Chun-yan |
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| Institution: | WU Chun-yan et al(Forestry school,Sichuan Agricultural University,Ya'an,Sichuan 625014) |
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| Abstract: | Landscape fragmentation and biodiversity importance was one of the bottlenecks that restricted the diversity of biology.Human disturbance and habitat islands were the main reasons for the formation of landscape fragmentation.Landscape fragmentation changed the geographical environment for the survival of biological species.Survival spaces of species dropped,reducing biological diversity and the characteristics of the ecosystem changed,influencing the flow of material within the system and energy balance and... |
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| Keywords: | Landscape fragmentation Species diversity Human disturbance Ecosystem |
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