New perspectives in German oak silviculture
نویسندگان
چکیده
منابع مشابه
Silviculture to Restore Oak Savannas and Woodlands
Variability in historic fire regimes in eastern North America resulted in an array of oak natural communities that were dominant across the region. In the past century, savannas and woodlands have become scarce because of conversion to agriculture or development of forest structure in the absence of fire. Their restoration is a primary goal for public agencies and conservation organizations. Al...
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In the past, there has been an emphasis on conifer tree species in forestry operations in British Columbia. As a result, there is a serious lack of information regarding disease and decay problems in most hardwood tree species. This presentation reports the results of recent studies on levels of decay in natural red alder stands, and on the formation of stain in harvested alder logs. Disease pr...
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Pharmacology is only just a small part of the science and scientists are a small fraction of each country. However, the example of joint activities of Polish and German pharmacologists shows that making new human relationships is possible. 1,2,3,4-Tetrahydroisoquinoline derivatives (TIQs) are present both in man and animal brain, and may play important physiological role. However, the earlier s...
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ژورنال
عنوان ژورنال: Annales des Sciences Forestières
سال: 1993
ISSN: 0003-4312
DOI: 10.1051/forest:19930605