本文主要分析人口增长对居民生活水平、森林和草地资源、城市环境和水土资源的影响。
The paper analyzes effects of population growth on inhabitants' life standard, resources of forestry and grassland, urban environment and resources of land and water as well.
灌木、草地、居民点和裸地的变化微弱。
The area of shrubs, grassland, residential areas and bare land changes weakly.
英国居民在18世纪四五十年代来到这，建立了城镇和绿色的草地当农场。
British settlers arrived in the 1840s and 1850s, establishing towns and clearing land for farms.
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