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林业科学 ›› 2014, Vol. 50 ›› Issue (2): 14-21.

• 论文与研究报告 • 上一篇    下一篇

秦岭中段华北落叶松人工林演替动态

柴宗政1, 王得祥1, 郝亚中2, 张丽楠1, 朱红燕1, 张丛珊1   

  1. 1. 西北农林科技大学林学院 杨凌 712100;
    2. 陕西省宁东林业局 西安 710000
  • 收稿日期:2012-12-10 修回日期:2013-12-27 出版日期:2014-02-25 发布日期:2014-03-11
  • 基金资助:

    林业公益性行业科研专项经费(20100400206);国家自然科学基金项目(31070570)。

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

摘要:

探讨秦岭中段中低海拔及中高海拔地带18~48年生华北落叶松人工林的演替趋势,并提出相应经营策略。结果表明:中低海拔地带华北落叶松人工林的演替趋势为华北落叶松人工纯林→华北落叶松+锐齿栎+青榨槭+野核桃+漆树针阔混交林→锐齿栎+野核桃+漆树阔叶混交顶级群落,其经营策略为经济效益与生态效益并重,采用近自然森林经营技术将其营建成以华北落叶松为建群种,锐齿栎、漆树和野核桃为伴生树种的异龄、复层混交林;中高海拔地带华北落叶松人工林的演替趋势为华北落叶松人工纯林→华北落叶松+华山松+红桦针阔混交林→华山松+红桦+云杉(含青杄)/巴山冷杉针阔混交林→云杉(含青杄)/巴山冷杉的顶级群落,其经营策略为考虑更换树种,遵循自然演替趋势,通过人为干预加快其向云杉(含青杄)或巴山冷杉顶级群落的演替进程。

关键词: 秦岭中段, 华北落叶松, 森林演替, 经营策略

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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