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[1]何如梦 王百田 ** 于显威 王旭虎 刘 涛 王岩松 刘 臻.晋西黄土区油松林的生长释放与生长抑制*[J].应用与环境生物学报,2018,24(06):1-11.[doi:10.19675/j.cnki.1006-687x.2018.03002]
 HE Rumeng,WANG Baitian**,YU Xianwei,et al.Growth Release and Growth Inhibition of Pinus tabulaeformis Forest in the Loess Plateau of Western of Shanxi Province, China[J].Chinese Journal of Applied & Environmental Biology,2018,24(06):1-11.[doi:10.19675/j.cnki.1006-687x.2018.03002]
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晋西黄土区油松林的生长释放与生长抑制*()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
24卷
期数:
2018年06期
页码:
1-11
栏目:
研究论文
出版日期:
2018-12-25

文章信息/Info

Title:
Growth Release and Growth Inhibition of Pinus tabulaeformis Forest in the Loess Plateau of Western of Shanxi Province, China
文章编号:
201803002
作者:
何如梦1 王百田1 ** 于显威2 王旭虎1 刘 涛1 王岩松1 刘 臻1
1北京林业大学水土保持学院 北京 100083?
2 辽宁水利职业学院 沈阳 110122
Author(s):
HE Rumeng1 WANG Baitian1** YU Xianwei2 WANG Xuhu1 LIU Tao1 WANG Yansong1 & LIU Zhen 1
1 School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China?
2 Liaoning water conservancy vocational college, Shenyang 110122, China
关键词:
黄土高原油松人工林径向生长过程生长释放生长抑制
Keywords:
the Loess Plateau P. tabulaeformis plantation forest radial growth process growth release growth supression
DOI:
10.19675/j.cnki.1006-687x.2018.03002
摘要:
气候变化对植被生长的影响日益得到关注,人为活动对植被的干扰越来越多,在人工林面积不断增加的背景下了解气候变化与抚育间伐对林木生长的影响十分必要。为了探究气候变化和人类活动对油松林生长的影响,本文选取黄土高原东部山西省临汾市吉县人工油松林中三个不同密度的林分,采用年轮生态学的方法对油松的径向生长过程进行分析。年轮宽度指数与气候因子的相关性分析表明该地区油松生长在年际尺度上与1月分降水和上年12月的最高温负相关,与7月的降水和10月的最高温正相关;生长释放和生长抑制分析表明由于气候变化和间伐的影响在1978-2003年之间,样方1出现了1次中度生长抑制,生长变化率低于-50%,1次由间伐引起的轻度生长释放,生长变化率大于47%;样方2出现了1次间伐产生的轻度生长释放,生长变化率超过39%;样方3出现了1次气候条件不适导致的轻度生长抑制,生长变化率低于-32%,1次由间伐和气候条件适宜共同作用产生的中度生长释放,生长变化率大于75%;间伐产生的生长释放效应能够维持5年左右。综上所述不适宜的气候条件会使树木生长受到抑制,间伐抚育在一段时间内能够促进树木快速生长,上述研究结果能够为后期的林业管理决策提供一定的参考。
Abstract:
The impacts of climate change on vegetation growth are increasingly paid attention, and human activities interfere with the vegetation. It is essential to discuss that the effects of climate change and thinning activity on forest growth in the context of expanding plantation areas. In this study , the dendroecological method was used to analyze the radial growth of Pinus tabulaeformis to reveal the impacts of climate change and human activities on forest stand growth. These samples derived from three different density areas of P. tabulaeformis forest at Lin Fen of Shanxi Province (t he east of Loess Plateau). The correlation analysis between tree ring width index and climatic factors indicated that the growth of P. tabulaeformis was negatively related to the precipitation in January and the monthly maximum temperature in December of the previous year, while positively correlated with precipitation in July and the monthly maximum temperature in October. The phenomena of growth release and inhibition could be attributed to the impacts of climate change and thinning during 1978-2003 . Plot 1 showed a moderate growth inhibition period when the growth rate was less than -50%, and a growth release caused by thinning. The growth rate was greater than 47% in the period of growth release. Besides, there existed a slight growth release due to tending in plot 2 , and the rate of growth change exceeded 39%. A slight growth suppression induced by uncomfortable climatic condition caused growth rate less than -32% and a moderate growth release by the interaction of cutting and comfortable counterpart made growth larger than 75% in plot 3. The release effects of thinning can last for about 5 years. In summary inappropriate climatic conditions can inhibit the growth of trees, and thinning can promote tree growth over time. The results above can provide a reference for local forest management.

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备注/Memo

备注/Memo:
收稿日期: 2018-03-01 接受日期: 2018-04-24
*国家重点研发计划(2016YFC0501704)资助?
**通讯作者(E-mail: wbaitian@ bjfu.edu.cn)
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更新日期/Last Update: 2018-06-05