1.The insect, the of a grain of rice, has killed more than half the lodgepole pine forest in the centre of BC -- an area larger than England.
昆虫，大小的米粒，已造成超过一半的洛奇波尔松林在公元前中心-面积比英格兰。
2.While lodgepole pines' range is limited to western North America, they give way to jack pines on the eastern slope of the Rockies.
海滩松仅生长于北美大陆的西部，它们给生长于落基山脉东坡的短叶松让出了一条道路。
3.The lodgepole pine trees throughout North America's western forests are at risk.
北美西岸丛林里的海滩松正面临严峻威胁。
4.The first is that jack pines occur in patchier stands than the continuous swaths of lodgepole on the west coast.
首先，相对于海滩松在西海岸的连续分布，短叶松仅呈零散的块状分布。