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The influence of snowstorm on Platycladus orientalis plantations in southern Shandong.

WANG Xuan1, CAO Bang-hua2*, MAO Pei-li1, WANG Shu-mei1, CAO Zhen-yu1, JIANG Qian-kun1#br#   

  1. (1Key Laboratory of Silviculture of Shandong Province, Shandong Agricultural University, Tai’an 271018, Shandong, China; 2Taishan Forest Ecosystem Research Station, State Forestry Administration, Tai’an 271018, Shandong, China).
  • Online:2017-06-10 Published:2017-06-10

Abstract: In order to provide a theoretical basis for snowstorm prevention of forest plantations in Shandong Province, the degree of snow harm of Platycladus orientalis plantations in Baodugu Forest Farm in Zaozhuang City was investigated using typical sampling method and the influence of slope, elevation and stand structure character on the degree of snow harm was explored. The results showed that the damage degree of P. orientalis plantations was significantly influenced by the slope and elevation. P. orientalis plantations exhibited more seriously damage on the sunny slope than on the shady slope. Similarly, the damage degree at the high elevation was more serious than at the low elevation. The trees with the diameter at breast height (DBH) from 6 to 18 cm were more vulnerable to the damage on the sunny slope, whereas no significant effects were observed on the shady slope. Correlation analyses showed that damage degree was significantly negatively correlated with tree height (except altitude 296 m of the shade slope), whereas its correlations to other stand structure characters varied with slope direction and altitude. Therefore, the combination of site condition and stand structure was the main factor affecting the snow disaster of the P. orientalis plantations in this area.