کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6536790 | 1420851 | 2018 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Windstorms and forest disturbances in the Czech Lands: 1801-2015
ترجمه فارسی عنوان
اختلالات دوری و جنگل در مناطق چچن: 1801-2015
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علم هواشناسی
چکیده انگلیسی
The long-term relationship between windstorms and forest disturbances in the Czech Lands is analysed in this paper, covering a very long period of 215 years (1801-2015). Based on documentary evidence and instrumental records, long-term series of severe windstorms in the summer half-year (April-September) and in the winter half-year (October-March) are compiled. Severe windstorms were more frequent in the 1820s-1840s, 1900s-1930s, and 1960s-2000s, less so in the latter half of the 19th century and in the 1940s-1950s. Their long-term variability is revealed with three differently-created series of forest damage for the periods of 1801-1900, 1900-1980 and 1963-2015. Based on these comparisons, 14 windstorms that did outstanding damage to forests are selected: 12 occurred in the winter half-year and two in July. They are further investigated with respect to their meteorological character and the damage done. In this sample, the high-impact winter half-year windstorms are typically related to very distinct (>45â¯hPa) pressure gradients between low pressure systems over the North/Norwegian Sea and high pressure systems south-west of the Iberian Peninsula, which exhibits an eastward-shifted and tilted NAO pattern, inducing the passage of frontal waves across the Czech Lands. High temperatures arising from south-westerly airflow and wet ground before windstorms provided conditions conducive to extensive windthrow in forests, sometimes with damage exacerbated by subsequent bark-beetle calamities. The increase in windstorms with outstanding forest damage after 1950 may be attributed in part to the negative consequences of forest management that prioritises high, short-term profits over ecological well-being.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Agricultural and Forest Meteorology - Volumes 250â251, 15 March 2018, Pages 47-63
Journal: Agricultural and Forest Meteorology - Volumes 250â251, 15 March 2018, Pages 47-63
نویسندگان
Rudolf Brázdil, Peter Stucki, Péter Szabó, Ladislava ÅeznÃÄková, LukáÅ¡ Dolák, Petr Dobrovolný, Radim Tolasz, OldÅich Kotyza, KateÅina Chromá, Silvie Suchánková,