[1]李海霞,李正华,郭树平*,等.不同氮磷水平对红松幼苗碳氮积累与分配的影响[J].西北林学院学报,2013,28(05):24-29.[doi:10.3969/j.issn.1001-7461.2013.05.05]
 LI Hai-xia,LI Zheng-hua,GUO Shu-ping*,et al.Effecs of Different Nitrogen and Phosphorus Supply Levels on C, N Accumulation and Partitioning in Pinus koraiesis Seedlings[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2013,28(05):24-29.[doi:10.3969/j.issn.1001-7461.2013.05.05]
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不同氮磷水平对红松幼苗碳氮积累与分配的影响()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第28卷
期数:
2013年05期
页码:
24-29
栏目:
出版日期:
2013-09-09

文章信息/Info

Title:
Effecs of Different Nitrogen and Phosphorus Supply Levels on C, N Accumulation and Partitioning in Pinus koraiesis Seedlings
文章编号:
1001-7461(2013)-05-0024-06
作者:
李海霞1李正华1 郭树平2*李 静1
1.黑龙江省林业科学研究所 速生林木培育重点实验室,黑龙江 哈尔滨 150081;
2.黑龙江省林业科学研究所,黑龙江 哈尔滨 150081
Author(s):
LI Hai-xia1LI Zheng-hua1 GUO Shu-ping2*LI Jing1
1. Heilongjiang Forest Research Institute,Key Laboratory of Fast-Growing Tree Cultivating, Harbin, Heilongjiang 150081,China;
2. Heilongjiang Forest Research Institute, Harbin, Heilongjiang 150081,China
关键词:
红松 积累 分配
Keywords:
Pinus koraiesis nitrogen phosphorus carbon accumulation partitioning
分类号:
S791.247
DOI:
10.3969/j.issn.1001-7461.2013.05.05
文献标志码:
A
摘要:
在温室内以红松幼苗为材料进行砂培试验,探讨了4种不同氮素浓度处理(1、4、8、16 mmol·L-1)和4种不同磷素浓度处理(0.125、0.5、1.0、2.0 mmol·L-1)下红松幼苗根、茎、叶的生物量、叶绿素含量、氮含量以及碳氮积累和分配的影响。结果表明:不同供氮水平对红松幼苗各器官干生物量、叶绿素含量、氮含量以及碳氮积累的影响不同。地上部分和地下部分生物量在适量供氮(8 mmol·L-1)条件下达最大。不同磷浓度处理下红松幼苗地上部分在p=1.0达最大,而地下部分生物量则在p=0.5处理下最高。叶绿素a、叶绿素b、叶绿素a、b总和以及类胡萝卜素含量均在适量供氮、供磷水平下最大。红松幼苗根、茎、叶全氮浓度、氮积累量、碳积累量对氮、磷供应水平响应基本一致,表现出与色素含量一致的规律。总体来看,适量的氮磷供应有助于红松幼苗的生长,或高或低的供氮供磷都可能对红松幼苗的生长产生抑制作用。
Abstract:
Effects of nitrogen(N)and phosphorus(P)and their different supply levels on the growth and carbon and nitrogen accumulation of Pinus koraiesis seedlings were studied by sand culture in greenhouse. The significant differences were observed in the dry mass, chloroplast pigment concentration,photosynthesis rate and carbon and nitrogen accumulation among different nitrogen and phosphorus treatments. The aboveground and belowground biomasses were the highest when supplied with normal levels of nitrogen(8 mmol·L-1). The highest biomass of aboveground was obtained at 1.0 mmol·L-1 phosphorus level, while the maximum of belowground biomass at 0.5 level. The responses of chlorophyll and carotenoid contents were basically consistent with those of carbon and nitrogen accumulation of root, stem and leaf of the seedlings,showing the maximum at the normal levels. In general, adequate N, P supply was more beneficial to the growth of the seedlings. More or less level may inhibit seedling growth.

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备注/Memo

备注/Memo:
收稿日期:2013-02-01 修回日期:2013-03-08
基金项目:黑龙江省攻关项目“优质木结构用材原料林良种选育及定向培育技术研究”(GA09B202-02)。
作者简介:李海霞,女,助理研究员,研究方向:森林培育。E-mail:Isbqf@163.com *通信作者:郭树平,男,研究员,研究方向:森林培育。
更新日期/Last Update: 2013-09-30