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Scientia Silvae Sinicae ›› 2014, Vol. 50 ›› Issue (2): 14-21.

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Succession Dynamics of Larix principis-rupprechtii Plantation in Intermediate Section of Qinling Mountains

Chai Zongzheng1, Wang Dexiang1, Hao Yazhong2, Zhang Linan1, Zhu Hongyan1, Zhang Congshan1   

  1. 1. College of Forestry, Northwest A&F University Yangling 712100;
    2. Ningdong Forestry Bureau, Shaanxi Province Xi'an 710000
  • Received:2012-12-10 Revised:2013-12-27 Online:2014-02-25 Published:2014-03-11
  • Contact: 王得祥

Abstract:

In this paper, we investigated the succession tendency of 18-48-year-old Larix principis-rupprechtii plantations in mid-low altitude and mid-high altitude districts, and proposed the corresponding management strategies. The results showed that:the succession tendency of L.principis-rupprechtii plantations in mid-low altitude district would be the pure L.principis-rupprechtii forests→mixed broadleaf-conifer forests of L.principis-rupprechtii + Quercus aliena var. acuteserrata + Acer davidii + Juglans cathayensis + Toxicodendron vernicifluum→mixed broadleaf-conifer climax communities of Quercus aliena var. acuteserrata + Juglans cathayensis + Toxicodendron verniciflum. The management strategy paid equal attention to economic benefit and ecological benefit, The close-to-nature forest management technology was used to build the different age, stratified mixed forests in which L.principis-rupprechtii was dominant species and Quercus aliena var. acuteserrata+Juglans cathayensis+ Toxicodendron vernicifluum were associated species. The succession tendency of L.principis-rupprechtii plantations in mid-high altitude district would be the pure L.principis-rupprechtii forests→mixed broadleaf-conifer forests of L.principis-rupprechtii + Pinus armandi+ Betula albo-sinensis→mixed broadleaf-conifer forests of Pinus armandi + Betula albo-sinensis + Pinus asperata (Picea wilsonii) or Abies fargesii→climax communities of Pinus asperata (Picea wilsonii) or Abies fargesii. In this district, the management strategy should consider tree species conversion, follow natural succession trend, and speed up its succession process to climax through human intervention communities of Pinus asperata(Picea wilsonii) or Abies fargesii.

Key words: intermediate section of Qinling Mountains, Larix principis-rupprechtii, forest succession, management strategies

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