Winter Damage as the Result of a Complexity of Constraints

摘要: Overwintering plants are subject to various constraints. The danger from winter cold is not only due the primary effect of ice formation in tissues. Additional threats presented by freezing water and on ground, snow accumulation. Especially for growing mountains, combinations constraints which they exposed vary over very short distances steepness slope exposure radiation wind (Table 8.1; Figs. 8.1 8.2). Plants sunny habitats high dormant state, large, short-term fluctuation shoot soil surface temperatures, desiccation. windward likely suffer low-temperature stress, mechanical, cooling desiccation effects frost drought frozen soil, whereas wind-protected where accumulates, especially shaded sites, safe low temperatures desiccation; stress such depends pressure duration cover.