...草原学；蒸腾系数；阶段蒸腾系数；全生育期蒸腾系数；耗水系数；生物产量耗水系数；经济产量耗水系数；耗水量 [gap=1047]Key words: Grassland science;Transpiration coefficient;Partial stage transpiration coefficient; Whole stage ...
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课程包括化学，动物科学，草原学，营养学以及健康和安全等。
Their studies include chemistry, animal science, range science, nutrition, and health and safety.
他是加州大学戴维斯分校生态学博士，科罗拉多州立大学草原学硕士，米德尔伯里学院的地理学学士。
D. in Ecology from the University of California at Davis, an M. S. in Range Science from Colorado State University and a B.
帕克德知道，生态学教父奥尔多·利奥波德【3】在1934年曾经成功地重建了一块勉勉强强的草原。
Packard knew that the godfather of ecology, Aldo Leopold, had successfully recreated a prairie of sorts in 1934.
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