前兆 发表于 2025-3-25 06:04:46

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notion 发表于 2025-3-25 11:15:35

Book 1976 is now its undisputed ruler - and very often out of equilibrium - able in a matter of hours to reduce miles of forest to devastated, potential desert. This destructive and wasteful ability has increas~d dramatically over recent years. At the same time however the need for conservation, particularly

偶像 发表于 2025-3-25 13:24:42

Introductionn surveys of threatened plants in North America, Europe and other parts of the world suggest that perhaps one-tenth of angiosperm species are in hazard of extinction, a situation a good deal worse than might have been predicted even ten years ago. Some floras are in greater peril than others, but th

otic-capsule 发表于 2025-3-25 17:54:11

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飞行员 发表于 2025-3-25 22:14:36

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harangue 发表于 2025-3-26 03:13:51

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雄伟 发表于 2025-3-26 07:25:49

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Endearing 发表于 2025-3-26 11:50:09

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缝纫 发表于 2025-3-26 12:51:30

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我邪恶 发表于 2025-3-26 20:18:28

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查看完整版本: Titlebook: Conservation of Threatened Plants; J. B. Simmons (Curator),R. I. Beyer (Deputy Curato Book 1976 Plenum Press, New York 1976 agriculture.de