论文抄袭：杂草入侵对物种的威胁
外来入侵植物已成为国家关注的问题，并对联邦和州政府的开支造成了严重影响。政府制定的环境和农业发展政策的主要目标包括预防和管理入侵物种。仅仅是对澳大利亚生态系统中外来入侵杂草的管理，每年就造成了大约40亿美元的支出。土地清理是澳大利亚生物多样性的主要威胁，杂草是第二大威胁。法律认可的220种有害杂草是有意引入中国的。
论文抄袭 ：杂草入侵对物种的威胁
入侵物种的威胁是一个备受关注的问题，主要是因为这是一个持续的过程。它对宝贵的环境、农业或其他个人资源造成危害。它们破坏了土壤和水，给土地的生物多样性带来了巨大的压力。当地的植物、作物以及动物，如果食用了这些入侵物种，就会受到不利影响。它占用了农业用地，破坏农作物，造成数百万财富的损失。杂草不仅是对环境的威胁，而且是初级生产工业的威胁。杂草往往会打乱当地的植物种类，并大大降低土地质量以及森林和农场的生产力。它也改变了自然发生的生物多样性和生态平衡的群体。环境的这些剧烈变化对其他各种动植物的生存造成了威胁。杂草与当地植物争夺土地、阳光和土壤养分等资源。
论文抄袭 ：杂草入侵对物种的威胁
The non-native invasive plant species have been matter of national concern and has caused heavy impact on the expenditure of the federal as well as state government. The prime goals of the policies drawn by the government for the environment and agriculture development, includes prevention and management of invasive species. The mere management of invasive non-native weeds in Australian ecosystem causes an annual expenditure of about $ 4 billion. While the land clearing is prime threat of Australian biodiversity, weeds is the second largest menace. The 220 noxious weeds as recognised by the law were introduced in the country intentionally.
论文抄袭 ：杂草入侵对物种的威胁
The threat of invasive species is a matter of great concern mainly because it is a continuous process. It causes threat to the precious environment, agriculture or other individual resources by harming it. They put huge pressure on the land’s biodiversity by spoiling soil and water. The local plants, crops as well as animals that consume these invasive species get adversely affected. It occupies the agricultural land and damage crops causing loss of millions of wealth. Weeds are the threat not only to the environment but also the industries of primary production. Weeds tend to dislocate the local plant classes and significantly degrade the quality of land as well as productivity of forests and farms. It also changes the naturally occurring biodiversity and ecological balance of the groups. These drastic changes in the environment cause threats for the survival of various other animals and plants. Weeds contest for the resources like land space, sunlight and nutrients from soil with the local plants.
