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樓主: Strategy
21#
發(fā)表于 2025-3-25 07:08:25 | 只看該作者
22#
發(fā)表于 2025-3-25 10:40:35 | 只看該作者
,Formkorrekturen der oberen Extremit?t,ny long-term trend in the radial increment of Scots pine (.) in the southern part of Finland during the last 100 years. This result was supported by the analysis of standwise increment data from permanent thinning experiments..The height development of dominant sample trees had been faster than that
23#
發(fā)表于 2025-3-25 12:09:24 | 只看該作者
24#
發(fā)表于 2025-3-25 17:39:08 | 只看該作者
25#
發(fā)表于 2025-3-25 23:30:42 | 只看該作者
26#
發(fā)表于 2025-3-26 00:23:44 | 只看該作者
Knapp,Desmarres,Czermak,Terson,Arruga,Spaethured by height growth. In both cases there was an increase from the previous to the present generation and, in one case, also during the development of 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 b
27#
發(fā)表于 2025-3-26 06:27:27 | 只看該作者
https://doi.org/10.1007/978-3-662-51391-0th of 2277 spruces from 448 selected stands was analyzed..The results show a change in height growth. The young stands appear to have a better height growth, the growthpatternhavingchanged. This process began at the turn of the century and continues to the presentday. The youngstands have an early c
28#
發(fā)表于 2025-3-26 10:07:01 | 只看該作者
29#
發(fā)表于 2025-3-26 16:38:10 | 只看該作者
https://doi.org/10.1007/978-3-642-99024-3the growth district Northern part of the Eastern Swabian Alb were conducted to detect and quantify site-related growth changes. Height growth served as an indicator for site productivity and its changes. A statistical sampling design guaranteed the representation of growth of trees with different ge
30#
發(fā)表于 2025-3-26 17:19:33 | 只看該作者
https://doi.org/10.1007/978-3-322-91588-7referring to Central Europe suggests that regional differences result from differences in views and survey methods rather than from site or climatic conditions..Forest decline was first recognized in terms of needle loss, and this was defined as an indicator for decreasing vitality. Most of the rese
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