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樓主: Strategy
51#
發(fā)表于 2025-3-30 12:14:08 | 只看該作者
52#
發(fā)表于 2025-3-30 15:56:55 | 只看該作者
https://doi.org/10.1007/978-3-642-55886-3enetic improvement, better species-site adaption and different site treatments performed during the last decades will enhance this trend..In the second case, the increasing atmospheric deposition of nitrogen is suspected to have the biggest influence. A long-term trend of this type may have been bui
53#
發(fā)表于 2025-3-30 19:49:24 | 只看該作者
54#
發(fā)表于 2025-3-30 23:54:59 | 只看該作者
https://doi.org/10.1007/978-3-642-99024-3 conclusion can be drawn because management influences on beech height growth are negligible for the trees analyzed and changes in genetics are not probable because beech has always been naturally regenerated.
55#
發(fā)表于 2025-3-31 01:51:55 | 只看該作者
56#
發(fā)表于 2025-3-31 07:00:09 | 只看該作者
57#
發(fā)表于 2025-3-31 10:34:27 | 只看該作者
58#
發(fā)表于 2025-3-31 14:06:02 | 只看該作者
Knapp,Desmarres,Czermak,Terson,Arruga,Spaethf the present generation. The increase was approx. 3.6 m (at a reference age of 100 years) during the period 1920s-1990. The conclusion is sustained by comparisons with the height growth of beech planted after beech.
59#
發(fā)表于 2025-3-31 17:32:32 | 只看該作者
60#
發(fā)表于 2025-3-31 23:17:30 | 只看該作者
https://doi.org/10.1007/978-981-97-2780-3siduals show, for most cases, an increased growth since 1980. Analysis of the whole time series reveals neither an exceptional rise nor any growth levels which have not been seen or reached earlier in this century.
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