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FOREST RESOURCES WANAGEMENT ›› 2012, Vol. 0 ›› Issue (3): 85-89.

• Science and Technology • Previous Articles     Next Articles

Effects of Pruning on Stand Growth of the Artificial Larix principis-rupprechtii Mayr Forest

YANG Fei1, WANG Xin1, GUO Yanpeng2, ZHANG Yanhua2, MA Changming1   

  1. 1. Agricultural University of Hebei,Baoding 071000,China;
    2. Mulan State-owned Forest Farm Administration,Chengde 068450,Hebei Province,China
  • Received:2012-02-20 Revised:2012-03-26 Online:2012-06-28 Published:2020-11-27

Abstract: According to Xinfeng Experimental Forest Farm of the Mulan State-owned Forest Farm Bureau in Hebei Province,This paper evaluated the influence of the pruning strength and different treatments of pruning on the Larix principis-rupprechtii Mayr. planted forest growth and canopy change. The pruning strength intensity is set based on the crown height percentage that respectively is 4/5,7/10,3/5 and the control area is also set; The processing of pruning remains is placing,cleaning,crushing and the set control area. The result showed that different levels of pruning of forest trees at DBH growth rate all have certain improvements,among them,moderate pruning of forest trees DBH,promotion height rate of growth and the tree Vissky index increase is obvious; according to different treatment of the test pruning remains early results show that crushing and clean up processing stand is helpful for the improvement of forest tree DBH rate,placed processing stand is more conducive to improving forest tree height growth rate.

Key words: Larix principis, growth rate, pruning, residues of pruning

CLC Number: