祸害隐伏
发表于 2025-3-27 00:31:50
Book 1978luenced by practical considerations regarding the possibilities of scientific work as subordinate to certain political realities and historically grown traditions. This is illustrated, for example, in such works as the Flora of Southern Africa, where the northern boundary of the area is conceived as
single
发表于 2025-3-27 03:52:37
https://doi.org/10.1007/978-3-030-05572-1 another suggested cause is that the general ecological balance of marginal areas is so delicate as to be easily, or possibly semi-permanently, reversed in extended dry spells, and so allowing serious soil erosion. Proponents of soil erosion as a cause of desertification are Baver (1955) and Tidmars
DEAF
发表于 2025-3-27 07:47:57
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Immortal
发表于 2025-3-27 12:38:25
Ansgar Lyssy,Christopher Yeomansextent, but the 250 mm isohyet coincides satisfactorily with a chorological boundary and is here taken as the borderline. Further south on the loamier substrates of the Karoo and South African Highveld the chorological borderline coincides more closely with the 400 mm isohyet. Towards the Atlantic c
Hiatus
发表于 2025-3-27 15:51:12
Vital Forces and Organisms in the ,,ds from the mountains of tropical East Africa. In other words, this was not acceptance of a local southern African Afro-alpine Region. In 1965 White produced a chorological map again with no Afro-alpine Region indicated for southern Africa. White’s subsequent map (1971) based on the works of Lebrun
溺爱
发表于 2025-3-27 19:08:24
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interference
发表于 2025-3-27 22:51:45
Biogeography and Ecology of Southern Africa978-94-009-9951-0Series ISSN 0077-0639 Series E-ISSN 2215-1729
MULTI
发表于 2025-3-28 04:49:53
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闪光你我
发表于 2025-3-28 10:11:23
Kant on Maxims and Moral MotivationIn this section a sketch will be given in broad outline of the interrelation of climate and vegetation and the indications which can be implied from this correlation for the age of certain vegetation types.
Substitution
发表于 2025-3-28 14:21:36
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