不同经营模式华北落叶松的径向生长及对干旱事件的响应

doi:10.13287/j.1001-9332.202506.002

应用生态学报 ›› 2025, Vol. 36 ›› Issue (6): 1708-1714.doi: 10.13287/j.1001-9332.202506.002

不同经营模式华北落叶松的径向生长及对干旱事件的响应

贾建恒^1,2, 侯树航^1,2, 次柯凡^1,2, 郭明明^1,2*, 付立华³, 张岩³

¹河北农业大学林学院, 河北保定 071000;
²河北省城市森林健康技术创新中心, 河北保定 071000;
³河北省塞罕坝机械林场, 河北承德 068456

收稿日期:2025-01-20 接受日期:2025-03-26 出版日期:2025-06-18 发布日期:2025-12-18
通讯作者: *E-mail: guomingming901@163.com
作者简介:贾建恒, 男, 1998年生, 硕士研究生。主要从事树木年轮学研究。E-mail: 1390874075@qq.com
基金资助:
河北省重点研发计划项目(22326807D)、河北省林草科技推广示范项目(冀TG[2023]009号)和国家自然科学基金项目(32301584)

Radial growth of Larix principis-rupprechtii and responses to drought events under different forest management models

JIA Jianheng^1,2, HOU Shuhang^1,2, CI Kefan^1,2, GUO Mingming^1,2*, FU Lihua³, ZHANG Yan³

¹College of Forestry, Hebei Agricultural University, Baoding 071000, Hebei, China;
²Urban Forest Healthy Technology Innovation Center in Hebei Province, Baoding 071000, Hebei, China;
³Hebei Saihanba Mechanized Forest Farm, Chengde 068456, Hebei, China

Received:2025-01-20 Accepted:2025-03-26 Online:2025-06-18 Published:2025-12-18

摘要/Abstract

摘要： 2014年于河北省塞罕坝机械林场对20年生的华北落叶松人工林开展不同模式的经营试验,包括未经营(对照)、结构化经营和近自然经营。2023年采集不同经营模式的华北落叶松树木年轮样芯,基于年轮宽度指数,分析华北落叶松径向生长在经营模式建立前后对4次干旱事件(2001—2002年、2006—2010年、2015和2018年)的响应。结果表明:经营后(2015—2022年均值),对照、结构化经营和近自然经营模式下华北落叶松径向生长比经营前(1989—2014年均值)径向生长分别增加了2.0%、4.1%和3.1%,可见对照和近自然经营模式下径向生长的增长率低于结构化经营。与经营前相比,经营后3种经营模式下华北落叶松径向生长对干旱事件的抵抗力显著提高,恢复力和韧性显著下降。经营后,不同经营模式下华北落叶松径向生长对干旱事件的响应存在差异,对照和近自然经营模式下华北落叶松径向生长对干旱事件的恢复力、恢复比例和韧性均显著低于结构化经营,而恢复时间长于结构化经营。综上,在干旱事件频发的背景下,结构化经营模式对华北落叶松径向生长更有利,更适合华北落叶松人工林。

关键词: 华北落叶松, 森林经营, 径向生长, 干旱

Abstract: In 2014, we implemented three management models, unmanaged (the control), the structured management and the close-to-nature management, for 20-year-old Larix principis-rupprechtii plantations in Saihanba Mechanical Forest Farm, Hebei Province. We collected tree-ring core samples in 2023 and analyzed the responses of radial growth of L. principis-rupprechtii to four drought events (2001-2002, 2006-2010, 2015 and 2018) before and after the establishment of management models. The results showed that after management, the radial growth (average during 2015-2022) increased by 2.0% (control), 4.1% (structured management) and 3.1% (close-to-nature management) compared to the pre-management levels (average during 1989-2014), with the structured management demonstrating superior growth enhancement over the other two management models. Compared with pre-management, the resistance of the radial growth of L. principis-rupprechtii to drought events improved after management, whereas the recovery and resilience decreased. After management, the radial growth response of L. principis-rupprechtii to drought events differed across management models. The recovery, recovery rate, and resilience of the radial growth of L. principis-rupprechtii were significantly lower in the control and the close-to-nature management, whereas the recovery time was longer than that in the structured management. In conclusion, the structured management promoted the radial growth of L. principis-rupprechtii plantations under frequent droughts, which are suitable for these forests.

Key words: Larix principis-rupprechtii, forest management, radial growth, drought

贾建恒, 侯树航, 次柯凡, 郭明明, 付立华, 张岩. 不同经营模式华北落叶松的径向生长及对干旱事件的响应[J]. 应用生态学报, 2025, 36(6): 1708-1714.

JIA Jianheng, HOU Shuhang, CI Kefan, GUO Mingming, FU Lihua, ZHANG Yan. Radial growth of Larix principis-rupprechtii and responses to drought events under different forest management models[J]. Chinese Journal of Applied Ecology, 2025, 36(6): 1708-1714.

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不同经营模式华北落叶松的径向生长及对干旱事件的响应

Radial growth of Larix principis-rupprechtii and responses to drought events under different forest management models

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