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 Wysłany: Wto 6:22, 01 Lut 2011 Temat postu: belstaff online Shaanxi Qinling Mountains area dis |
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Shaanxi Qinling Mountains area pine blister rust and Hazards of Distribution
31.4I6.81.933.4 average incidence rate (6) = 42. The average volume loss o = 3. D8 (mS / ha) Average condition advice =. 3 Average volume loss rate of the first () = 5.063 Conclusion 1) Wu Qinling Mountains Area Mountain areas are the natural distribution of the incidence of blister rust, a serious forest disease in eastern and western disease less severe. Disease occurrence and nature of forest, forest stand age distribution of the size and aspect is closely related to plantation, the more serious disease in young forest,[link widoczny dla zalogowanych], significantly higher incidence of sunny slope king. 2) Stand the plants in different diameter classes can be disease, strain distribution in each diameter class and stand diameter structure similar,[link widoczny dla zalogowanych], but stand in the middle of surgery and a high incidence of dominant trees in the suppressed tree. 3) blister rust orange Huashan seriously affect pine growth rate of up to 54 patients,[link widoczny dla zalogowanych], volume loss was 4.16ms/ha,[link widoczny dla zalogowanych], and caused a lot of volume loss. The maximum offer of individual plots and volume loss rate of 6.21.
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