By Francisco Javier Alonso de la Paz
Bonsáis Ornamentales КНИГИ ; ХОББИ и РЕМЕСЛА Автор:Francisco Javier Alonso de l. a. Paz Название: Bonsáis OrnamentalesИздательство: LibsaГод: 2000 Формат: pdf Размер: 33 mb Язык: испанскийCon este libro práctico podrá conjugar las labores de mantenimiento del bonsái con l. a. estética de su hogar. Cada especie decorative se explica con rules para lucir lo mejor posible sus flores y frutos.Скачать - депозит eighty five
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Finally, there are few foods that do not beneﬁt from the application of heat. Therefore, the second great beneﬁt of ﬁre was in cooking and boiling, which leached out toxins, softened tough ﬁbers, and reduced bacteria and fungi, extending the range of foods available and leading, presumably, to better health. In addition, the application of ﬁre for cooking became the model for ceramics and metallurgy. Thus, ﬁre became embedded in human cognition and sociocultural behavior. ” 3 Fire could be used for protection as well as aggression; it accompanied ceremonies and entered belief systems as a puriﬁer and atoner through sacriﬁce and ordeal; it entered into concepts of creation and damnation in many religions.
When ﬁre was suppressed with European settlement, the forest began to encroach on these openings. For example, the “oak openings” of southwestern Wisconsin were reckoned to have decreased by nearly 60 percent between 1829 and 1854 following the control of ﬁre; and oak-hickory forest advanced into the Illinois grasslands at between 1 and 2 mi in 30 years after ﬁre ceased. Not until there was complete occupation of the prairies for agriculture and the suppression of wildﬁres did the advance of the forest stop on its western edge.
Thus, ﬁres in the northern Amazon basin at 6,000 bp and southeastern Venezuela at circa 3,500 bp that have thinned and altered the forest may be a result of either natural or human activities but are often associated with human settlement. On the other hand, there is abundant evidence of disturbance by burning in the Americas and in West and East Africa for 3,000 bp; Sumatra, 6,000 bp; Taiwan, 4,000 bp; Fiji, 3,000 bp; and New Guinea, 6,000 –9,000 bp, all accompanied by agricultural activity. 32 Clearing in the Deep Past In the south and central Amazon basin there is widespread evidence of charcoal, so much so that it is difﬁcult to ﬁnd soils that are not studded with charcoal.
Bonsáis Ornamentales by Francisco Javier Alonso de la Paz