四川农业大学学报 ›› 1996, Vol. 14 ›› Issue (03): 430-436.doi: 10.16036/j.issn.1000-2650.1996.03.024

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柏木低效防护林改造效益研究

邓玉林, 江心, 杨冬生   

  1. 四川农业大学林学园艺学院, 雅安市 625014
  • 收稿日期:1995-12-15 出版日期:1996-09-30 发布日期:2017-03-07

SUCCESSIVE BENEFITS OF EXTENSIVE MANAGEMENT OF THE DETORIORATE CUPRESS FUNEBIS FORESTS

Deng Yulin, et al   

  1. College of Forestry and Horticulture, SichuanAgricultural University/Yaan, Sichuan, China 625014
  • Received:1995-12-15 Online:1996-09-30 Published:2017-03-07

摘要: 通过对前期定位试验点进行继续观察,分析改造措施的合理性,评价柏木低效林改造的效益,根据林分演化规律,提出柏木低效林改造后续经营的技术措施。结果表明:①柏木低效林改造七年来效益显著,各种改造措施均能有效地改善林地土壤理化性质,增强森林保持水土、涵养水源的功能。改造区土壤侵蚀得以高度缓解直至彻底遏制,侵蚀模数已下降至500-2000t/(a.km2)。②各种改造措施对恢复和提高森林水土保持功能的效应以补植封山效果最佳,其次是补播封山,单纯封山再次,经济林改造相对较差。大面积低效林改造,应以人工补植、补播方式为主,进行复层经营,然后加以全面封山管理,积极开展抚育间伐,加强森林防火及病虫害防治。③柏木低效林改造后生态价值、经济价值显著提高,同时也发挥着重要的社会效益。

关键词: 柏木[45NL, 49GG], 防护林, 森林经营[49GD]

Abstract: Based on the relative study, a successive investigation on the fixed experimental plots built during the National Seven-Five Project presents the ecological, economic and social benefits of extensive management of the deteriorate cypress forests, The results show as follows:(1) A 7-year mulipulation through different measures has thoroughly changed the appearance of the past deteriorate Cupress funebis forests on the reaches of the Yangtz River, and the erosion modules on the studied forestland have been reduced from about 5000 to 500-2000t/a.km2.(2) Among all the taken measures, matchplanting and prohibition is the best one to recover the forest, and the pure cush tree planting is relatively the poorest one so that the succesive management should accordingly be matchplanting and sowing and a multistory management system should be set up. The crucial technology is to pretect the recovered forests from fire, desease, and pasture and thinning cut should be done on time.

Key words: CUPRESSUS FUNEBRIS, SHELTER-FORESTS, FOREST MANAGEMENT

中图分类号: 

  • S791.41