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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (8): 13-16.

所属专题： 农业气象

• 林学 园艺 园林 • 上一篇    下一篇

闽北森林对持续性强降雨作用的反馈与恢复对策

林勇明 陈建忠 吴承祯 陈灿 刘剑斌 肖应忠 林帅   

  • 收稿日期:2010-09-06 修回日期:2010-10-15 出版日期:2011-04-20 发布日期:2011-04-20
  • 基金资助:

    福建省自然科学基金青年创新项目;中国科学院山地灾害与地表过程重点实验室开放基金项目

The Response of Forest to Persistent Super Rainstorm and its Restoration Countermeasures

  • Received:2010-09-06 Revised:2010-10-15 Online:2011-04-20 Published:2011-04-20

PDF (PC)

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摘要：

为了查明强降雨对闽北森林造成的灾害形式及原因，促进灾区的生态修复，笔者以受灾最严重的福建省南平市为研究区，系统分析了森林受灾的特征、背景条件和形成原因，进而提出受灾森林的恢复对策。研究表明，极端降雨条件下，森林受灾与土体失稳关联性强，表现出在强降雨区沿河谷与道路分布、坡度>25°分布、浅根性森林受灾严重的特点。花岗岩风化土、持续性强降雨、浅根性人工林及人为扰动、危害认识不足是导致森林受灾的主要原因。最后，笔者提出清理倒木及折木、种植地表蔓生植物、深根性树种更新、森林受灾危险性分区的恢复对策。

关键词: 大蒜, 大蒜, 原生质体, 游离, 纯化

Abstract:

Aimed to find out the courses of forest damage induced by super rainstorm, taking the most serious-damaged Nanping city as an example, the author concentrated on characteristics, development conditions and formation causes of forest damage, and recommended countermeasures for forest restoration. It was found that forest damage was related to soil instability under the action of super rainstorm and distributed mainly along valley and road with >25° slope and shallow roots in strong rainfall area. The main courses of forest damage were granite weathered soil, persistent super rainstorm, trees with shallow roots, disturbance of human and people’s misunderstanding of damage. Finally, the restoration countermeasures were recommended based on this work, which included cleaning blow-down trees, planting liana and trees with deep roots and risking zoning evaluation of forest.