本文主要研究内容
作者康雨昌（2019）在《年龄和竞争对红松树轮气候响应规律的影响》一文中研究指出：树木的生长受很多因素的制约,主要包括自身生理因素以及外界环境因素,其中树木的年龄和竞争对树木生长有着至关重要的影响。本文以小兴安岭地区单木红松为研究对象,利用树木年轮气候学方法,建立红松树轮年表,分析了红松径向生长的规律和研究区气候变化的特征,以及红松生长与气候的响应,然后利用相关分析分别研究了年龄和竞争对红松树轮气候响应的影响,揭示年龄和竞争对红松生长与气候因子的响应机理,为气候变化条件下红松林的经营培育提供科学依据。结果表明:(1)红松的生长随时间序列呈现波动趋势,1974年之前红松的生长变异性较大,而后生长趋于平稳,研究区域内1956～2016年温度显著上升(p<0.01),降水的变化不明显。最低温度(0.53℃/10a)上升的最快,最高温度(0.36℃/10a)上升的最慢。3月份(2.078mm/10a)降水和5月份(4.984mm/10a)降水增加较为显著,但降水整体变化趋势不显著。红松标准年表质量较高,树轮年轮气候学分析表明:红松单木径向生长与6月的平均温度和最高温度呈显著负相关,与6月的降水呈显著正相关,红松单木径向生长与最低温度关系在各月份分布比较分散。(2)竞争会加剧红松径向生长对6月份降雨的敏感性,竞争对红松径向生长与温度因子关系无影响。小径级红松径向生长与6月份降水关系对竞争的敏感性最高,中等径级其次,大径级红松径向生长与6月份降水关系对竞争不敏感。竞争会加强各个龄级红松生长与6月份降水相关性,减弱各个龄级红松生长与6月份平均温度相关性,其中竞争对小龄级红松径向生长与降雨相关性影响最为明显,竞争对大龄级红松径向生长与温度和降雨相关性的影响都比较小。竞争对红松单木生长的影响主要表现在小径级和小龄级红松上,适当的调节林份密度,更有利于小径级红松生长,特别是在干旱年份。(3)研究区域的红松受到的竞争压力与红松的胸径和树高负相关,大径级、树高较高的红松受到的竞争压力较小,小径级、树高较矮的红松受到的竞争压力一般较大,不同竞争压力条件下,红松的年轮宽度指数趋势存在一定差异。不同树龄红松的年轮宽度指数变化趋势不同,均表现为平稳增加的趋势,但增加的趋势不显著。相同树龄红松的标准年表质量较差值年表质量好,不同树龄红松树轮年表与气候响应程度具有差异性,年表分析表明:小龄红松生长受前一年气候影响较大,大龄红松包含更多的气候信息。
Abstract
shu mu de sheng chang shou hen duo yin su de zhi yao ,zhu yao bao gua zi shen sheng li yin su yi ji wai jie huan jing yin su ,ji zhong shu mu de nian ling he jing zheng dui shu mu sheng chang you zhao zhi guan chong yao de ying xiang 。ben wen yi xiao xing an ling de ou chan mu gong song wei yan jiu dui xiang ,li yong shu mu nian lun qi hou xue fang fa ,jian li gong song shu lun nian biao ,fen xi le gong song jing xiang sheng chang de gui lv he yan jiu ou qi hou bian hua de te zheng ,yi ji gong song sheng chang yu qi hou de xiang ying ,ran hou li yong xiang guan fen xi fen bie yan jiu le nian ling he jing zheng dui gong song shu lun qi hou xiang ying de ying xiang ,jie shi nian ling he jing zheng dui gong song sheng chang yu qi hou yin zi de xiang ying ji li ,wei qi hou bian hua tiao jian xia gong song lin de jing ying pei yo di gong ke xue yi ju 。jie guo biao ming :(1)gong song de sheng chang sui shi jian xu lie cheng xian bo dong qu shi ,1974nian zhi qian gong song de sheng chang bian yi xing jiao da ,er hou sheng chang qu yu ping wen ,yan jiu ou yu nei 1956～2016nian wen du xian zhe shang sheng (p<0.01),jiang shui de bian hua bu ming xian 。zui di wen du (0.53℃/10a)shang sheng de zui kuai ,zui gao wen du (0.36℃/10a)shang sheng de zui man 。3yue fen (2.078mm/10a)jiang shui he 5yue fen (4.984mm/10a)jiang shui zeng jia jiao wei xian zhe ,dan jiang shui zheng ti bian hua qu shi bu xian zhe 。gong song biao zhun nian biao zhi liang jiao gao ,shu lun nian lun qi hou xue fen xi biao ming :gong song chan mu jing xiang sheng chang yu 6yue de ping jun wen du he zui gao wen du cheng xian zhe fu xiang guan ,yu 6yue de jiang shui cheng xian zhe zheng xiang guan ,gong song chan mu jing xiang sheng chang yu zui di wen du guan ji zai ge yue fen fen bu bi jiao fen san 。(2)jing zheng hui jia ju gong song jing xiang sheng chang dui 6yue fen jiang yu de min gan xing ,jing zheng dui gong song jing xiang sheng chang yu wen du yin zi guan ji mo ying xiang 。xiao jing ji gong song jing xiang sheng chang yu 6yue fen jiang shui guan ji dui jing zheng de min gan xing zui gao ,zhong deng jing ji ji ci ,da jing ji gong song jing xiang sheng chang yu 6yue fen jiang shui guan ji dui jing zheng bu min gan 。jing zheng hui jia jiang ge ge ling ji gong song sheng chang yu 6yue fen jiang shui xiang guan xing ,jian ruo ge ge ling ji gong song sheng chang yu 6yue fen ping jun wen du xiang guan xing ,ji zhong jing zheng dui xiao ling ji gong song jing xiang sheng chang yu jiang yu xiang guan xing ying xiang zui wei ming xian ,jing zheng dui da ling ji gong song jing xiang sheng chang yu wen du he jiang yu xiang guan xing de ying xiang dou bi jiao xiao 。jing zheng dui gong song chan mu sheng chang de ying xiang zhu yao biao xian zai xiao jing ji he xiao ling ji gong song shang ,kuo dang de diao jie lin fen mi du ,geng you li yu xiao jing ji gong song sheng chang ,te bie shi zai gan han nian fen 。(3)yan jiu ou yu de gong song shou dao de jing zheng ya li yu gong song de xiong jing he shu gao fu xiang guan ,da jing ji 、shu gao jiao gao de gong song shou dao de jing zheng ya li jiao xiao ,xiao jing ji 、shu gao jiao ai de gong song shou dao de jing zheng ya li yi ban jiao da ,bu tong jing zheng ya li tiao jian xia ,gong song de nian lun kuan du zhi shu qu shi cun zai yi ding cha yi 。bu tong shu ling gong song de nian lun kuan du zhi shu bian hua qu shi bu tong ,jun biao xian wei ping wen zeng jia de qu shi ,dan zeng jia de qu shi bu xian zhe 。xiang tong shu ling gong song de biao zhun nian biao zhi liang jiao cha zhi nian biao zhi liang hao ,bu tong shu ling gong song shu lun nian biao yu qi hou xiang ying cheng du ju you cha yi xing ,nian biao fen xi biao ming :xiao ling gong song sheng chang shou qian yi nian qi hou ying xiang jiao da ,da ling gong song bao han geng duo de qi hou xin xi 。
论文参考文献
论文详细介绍
论文作者分别是来自东北林业大学的康雨昌，发表于刊物东北林业大学2019-11-18论文，是一篇关于红松论文,年龄论文,竞争论文,径向生长论文,气候论文,东北林业大学2019-11-18论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自东北林业大学2019-11-18论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。