鸽子 发表于 2025-3-23 11:24:10
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Introductory Remarks,ure. Direct control of diseases and parasites, which is commonly practiced and required in field and garden crops, amounts to an interference into the balance of tree species with these organisms, and this must be kept to a minimum.LINES 发表于 2025-3-24 00:40:58
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How Man Affects Forest Ecosystems,rts. The land has changed drastically and regions once highly fertile and capable of supporting large populations can now support only a few nomadic tribes at a subsistence level. It has been speculated that the major cause of the spread of deserts through once fertile regions has been climatic chan全等 发表于 2025-3-24 14:08:03
https://doi.org/10.1007/978-3-642-91114-9ure. Direct control of diseases and parasites, which is commonly practiced and required in field and garden crops, amounts to an interference into the balance of tree species with these organisms, and this must be kept to a minimum.elucidate 发表于 2025-3-24 18:55:25
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Sichtung und Analyse der Beobachtungen, of ideological thought, the so-called “forest organism,” has exerted a bad influence until the most recent times and found supporters, especially in central Europe. This of course was not an autonomous development of forest science; rather, holisms had taken hold throughout phytology (to name only完整 发表于 2025-3-24 23:15:28
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