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[1]颜晓艺 张艳荷 林凤莲 吴承祯** 洪 伟 李 键**.氮硫复合沉降对杉木幼苗营养元素的影响[J].应用与环境生物学报,2016,22(03):473-479.[doi:10.3724/SP.J.1145.2015.08017]
 YAN Xiaoyi,ZHANG Yanhe,LIN Fenglian,et al.Effects of nitrogen and sulfur deposition on nutrient elements of Cunninghamia lanceolata (Lamb.) Hook seedlings under simulated experimental condition[J].Chinese Journal of Applied & Environmental Biology,2016,22(03):473-479.[doi:10.3724/SP.J.1145.2015.08017]
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氮硫复合沉降对杉木幼苗营养元素的影响()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
22卷
期数:
2016年03期
页码:
473-479
栏目:
研究论文
出版日期:
2016-06-25

文章信息/Info

Title:
Effects of nitrogen and sulfur deposition on nutrient elements of Cunninghamia lanceolata (Lamb.) Hook seedlings under simulated experimental condition
作者:
颜晓艺12 张艳荷23 林凤莲23 吴承祯24** 洪 伟23 李 键23**
1福建农林大学林学院 福州 350002 2福建省森林生态系统经营与过程重点实验室 福州 350002 3福建农林大学生命科学学院 福州 350002 4武夷学院生态与资源工程学院 南平 354300
Author(s):
YAN Xiaoyi123 ZHANG Yanhe13 LIN Fenglian13 WU Chengzhen34** HONG Wei13 & LI Jian13**
1College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China 2Fujian Provincial Key Laboratory of Forest Ecosystem Processing and Management, Fujian Agriculture and Forestry University, Fuzhou 350002, China 3College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China 4College of Ecology and Resource Engineering, Wuyi University, Nanping 354300, China
关键词:
杉木氮硫复合沉降营养元素
Keywords:
This study aimed to understand the nutritional elements mechanism of Cunninghamia lanceolata (Lamb.) Hook seedlings in response to simulated nitrogen (N) and sulfur (S) complex depositions. The effect of N and S deposition on main nutritional elements in
分类号:
Q945.78
DOI:
10.3724/SP.J.1145.2015.08017
摘要:
采用随机区组设计模拟氮硫复合沉降实验,以CO(NH2)2为氮源、Na2SO4为硫源,模拟试验1年后,分别采集不同氮硫沉降水平下杉木枝和叶的样品,研究杉木幼苗在不同沉降水平影响下的生长以及枝和叶营养元素氮、磷、钾、钙和镁含量的变化及其相关性. 结果表明:经过1年不同沉降水平处理后,幼苗胸径和地径在不同处理间差异显著(P < 0.05),均为促进作用,与对照相比,中氮低硫水平促进效果较佳;枝和叶中氮、磷和钾含量在不同处理间差异显著(P < 0.05),钙和镁在不同处理间差异不显著(P > 0.05);氮沉降源与叶氮、枝氮、叶磷含量相关关系极显著,相关系数分别为0.86、0.81、-0.78,与叶钾、枝镁含量呈显著负相关,相关系数分别为-0.64、-0.63;硫沉降源与叶磷(r = -0.62)含量呈显著负相关. 叶中氮与磷、磷与钾 、枝中氮和镁含量相关关系极显著,相关系数分别为-0.79、0.84、-0.91,叶中磷和镁、钾和镁以及枝中氮和磷、钾与钙含量呈显著相关,相关系数分别为0.65、0.70、-0.66、0.72,其他相关关系不显著. 以上表明,中低氮硫沉降水平可有效提高杉木氮、磷、钾、钙、镁元素的含量. (图2 表3 参46)
Abstract:
This study aimed to understand the nutritional elements mechanism of Cunninghamia lanceolata (Lamb.) Hook seedlings in response to simulated nitrogen (N) and sulfur (S) complex depositions. The effect of N and S deposition on main nutritional elements in the branches and leaves of C. lanceolata was investigated, including N, phosphorus (P), potassium (K), calcium (Ca), and magnesium (Mg), as well as their correlation. The randomized block design was used with Na2SO4 as sulfur source and 46% CO(NH2)2 as N source. The results showed that the diameter?at?breast?height?and basal diameter increment of seedlings increased significantly (P > 0.05) after simulated deposition treatments, most obviously in treatments of medium-N and low-S depositions. The contents of N, P, K in branches and leaves changed significantly after treatments (P < 0.05), while Ca and Mg did not (P > 0.05). Correlation analysis indicated that N source was positively correlated to leaf N (R = 0.86) and branch N (R = 0.81), but negatively to leaf P (R = -0.78), leaf K (R = -0.64) and branch Mg (R = -0.63); S source was negatively correlated to leaf P (R = -0.62). There was significant difference between N and P (R = -0.79), P and K (R = 0.84), P and Mg (R = 0.65), K and Mg (R = 0.70) in leaves, and N and Mg (R = -0.91), N and P (R = -0.66), K and Ca (R = 0.72) in branches. No significant difference was found between others. The results suggested that the deposition of medium and low-N and S can effectively promote the accumulation of nutritional elements in C. lanceolata seedlings.

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更新日期/Last Update: 2016-06-25