生态学复习资料(陆地生态系统).doc

steppeA vast semiarid grass-covered plain, as found in southeast Europe, Siberia, and central North America. 大草原：一片半干燥的大草原，如在东南欧洲、西伯利亚或中北美洲的 a large area of flat unforested grassland in SE Europe or Siberia (东南欧或西伯利亚的)大草原 one of the vast usually level and treeless tracts in southeastern Europe or Asia prairieAn extensive area of flat or rolling, predominantly treeless grassland, especially the large tract or plain of central North America. 大草原：多为广阔而无树木的平坦或起伏的草原区域，尤指北美洲中部的大平原 a large open area of grassland, especially in North America (尤指北美的)大草原 a tract of grassland: as a : a large area of level or rolling land in the Mississippi River valley that in its natural uncultivated state usually has deep fertile soil, a cover of tall coarse grasses, and few trees b : one of the dry treeless plateaus east of the Rocky Mountains that merge on their east side with the prairies proper and are characterized by shorter grasses and drier less fertile soil llanoA large, grassy, almost treeless plain, especially one in Latin America. 大平原：尤指南美洲广大、多草、几乎无树的平原 (in South America) a treeless grassy plain (南美)大草原 an open grassy plain in Spanish America or the southwestern U.S. PampasA vast plain of south-central South America. The Pampas extend for about 1,610 km (1,000 mi) from the lower Paraná River to south-central Argentina. 潘帕斯草原：南美洲中南部的大平原。潘帕斯草原从较低的巴拉那河到阿根廷中南部延伸大约1,610公里(1,000英里） large treeless plains in South America (南美洲的)无树大草原 an extensive generally grass-covered plain of temperate So. America east of the Andes savanna ? 也作 savannah ?A flat grassland of tropical or subtropical regions. 热带大草原：热带或亚热带地区的平坦草原 a grassy plain in tropical and subtropical regions, with few trees 热带和亚热带稀树草原 1 : a treeless plain especially in Florida 2 a : a tropical or subtropical grassland (as of eastern Africa or northern So. America) containing scattered trees and drought-resistant undergrowth b : a temperate grassland with scattered trees (as oaks) veldt ? 也作 veld Any of the open