约600,000至800,000只沙丘鹤只能使用位于内布拉斯加中部的几公里河流——人们已经用机械清理了这个地区的木本植被，使鸟类无法忍受。
Some 600, 000 to 800, 000 cranes use just a few miles of the river in central nebraska-areas that have been mechanically cleared of the woody vegetation that the birds can't tolerate.
约600,000至800,000只沙丘鹤只能使用位于内布拉斯加中部的几公里河流——人们已经用机械清理了这个地区的木本植被，使鸟类无法忍受。
Some 600,000 to 800,000 cranes use just a few miles of the river in central nebraska-areas that have been mechanically cleared of the woody vegetation that the birds can't tolerate.
结果表明：1。退化生态系统木本植物的密度与植被的恢复阶段紧密相关；
The main results are as follows: 1 . Woody plant density in degraded ecosystem is in close relation with restoration stage of vegetation.
说明木本草本植物群落的植被方式生态景观好，且对生态景观的恢复有着较快的效果。
Deion of woody herb community vegetation ecological landscape mode, and the ecological landscape restoration has a rapid effect.
说明木本草本植物群落的植被方式生态景观好，且对生态景观的恢复有着较快的效果。
Deion of woody herb community vegetation ecological landscape mode, and the ecological landscape restoration has a rapid effect.
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