景观破碎化及其对生物多样性的影响

景观破碎化是指景观中各生态系统之间的功能联系断裂或连接性减少的现象。景观破碎化引起生物生境的丧失或退化，从而造成生物多样性的丧失。景观破碎化造成的物种多样性变化主要表现为影响物种、遗传和生态系统的多样性。景观破碎化对物种多样性的影响研究是景观生态学的主要研究方向之一，但是目前的研究主要集中于动物种群，研究周期也比较短，而对于植物种群和生态系统受景观破碎化影响的研究开展较少，破碎化对生物多样性的影响机制研究应该更加深入。

Landscape fragmentation and its effect on biodiversity

Landscape fragmentation is defined as the phenomenon that the functional diversity relationships among eco-systems are ruptured. It can also be seen as a process of landscape from simpleness to complexity caused by disturbance of natural or human factors. Landscape fragmentation brings lose or degradation of habitat and accordingly induces the loss of biodiversity. Landscape fragmentation can affect species, heredity and ecosystem diversity. The study of effect of landscape fragmentation on biodiversity is one of the key areas of landscape ecology. But, at present, the study primarily focuses on the effect on animal species and the research period is somewhat short whereas the study on the effect of landscape fragmentation on plant species and ecosystem is relatively deficient and needs more endeavor. The mechanism of the effect of landscape fragmentation on biodiversity needs fathoming.