不同施肥配比对藜蒴栲幼苗氮含量及其分布格局的影响
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摘要
采用均匀设计对藜蒴栲Castanopsis fissa实生幼苗进行不同配比施肥实验,探讨不同营养条件下藜蒴栲幼苗各器官氮素含量及分布格局。结果表明,T_5施肥处理(N:0.0750 g·株~(-1)、P_2O_5:0.3500 g·株~(-1))最有利于藜蒴栲幼苗生长。各生长时期不同营养条件下藜蒴栲苗木根、茎、叶N含量均有差异,苗木体内N总含量与N肥施用量呈正比。随时间的推移,藜蒴栲苗木N素呈现由根向叶转移的趋势。相关性分析表明,根与茎、茎与叶的N含量呈极显著正相关,根与叶N含量呈显著正相关。
To discuss nitrogen content and its distribution pattern of Castanopsis fissa seedlings under different nutritional conditions, different gradient ratios fertilizing of C. fissa seedlings were carried out by uniform design. The results showed that T_5 treatments(N: 0.0750 g·strain~(-1), P2_O_5: 0.3500 g·plant~(-1)) was best for C. fissa seedlings growth. In each growth period, N contents of root, stem or leaf were varied with different nutritional conditions, the relationship between C. fissaseedlings total N content and N application rate was positive. Nitrogen content had a trend of transferring from root to leaf with the growth of C. fissa seedlings. The correlation analysis showed that nitrogen contents of root and stem, stem and leaf showed significantly positive correlation. Nitrogen contents of root and leaf showed positive correlation.
To discuss nitrogen content and its distribution pattern of Castanopsis fissa seedlings under different nutritional conditions, different gradient ratios fertilizing of C. fissa seedlings were carried out by uniform design. The results showed that T_5 treatments(N: 0.0750 g·strain~(-1), P2_O_5: 0.3500 g·plant~(-1)) was best for C. fissa seedlings growth. In each growth period, N contents of root, stem or leaf were varied with different nutritional conditions, the relationship between C. fissaseedlings total N content and N application rate was positive. Nitrogen content had a trend of transferring from root to leaf with the growth of C. fissa seedlings. The correlation analysis showed that nitrogen contents of root and stem, stem and leaf showed significantly positive correlation. Nitrogen contents of root and leaf showed positive correlation.
引文
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[18]李贵,苏晓华,童方平,蒋燚,刘振华,陈瑞.黧蒴栲半同胞家系根际土壤理化性质的差异[J].中南林业科技大学学报,2014,34(11):62—66,70.
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[21]Liu N,Zhu W X,Sun Z Y,Yang L,Yuan S F,Ren H.Canopy size dependent facilitations from the native shrub Rhodomyrtus tomentosa to the early establishment of native trees Castanopsis fissa and Syzygium hancei in Tropical China[J].Restoration Ecology,2014,22(4):509—516.
[22]童方平,蒋燚,刘振华,黄荣林,李贵,陈瑞.黧蒴栲半同胞家系木材化学成份、热值遗传变异规律及遗传参数估算[J].中南林业科技大学学报,2013,33(6):7—11.
[23]陈羽,仲崇禄,姜清彬,张勇,陈珍.黎蒴苗木与菌根食药用菌共生体的构建与筛选[J].林业与环境科学,2016,32(3):30—34.
[24]郭晶晶.固态发酵改性促进黧蒴栲木屑压缩成型性能研究[D].长沙:湖南大学硕士学位论文,2015.
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[27]孙丽静,陈海军,余娜.不同营养条件对黎蒴栲幼苗形态指标的影响[J].广东林业科技,2010,26(2):36—41.
[28]陆景陵.植物营养学[M].北京:中国农业大学出版社,2003:23—24.
[2]范黎明.广州近郊藜蒴群落花期美景度研究[D].北京:中国林业科学研究院硕士学位论文,2012.
[3]薛立,李燕,屈明.火力楠、荷木和藜蒴林的土壤特性及涵养水源的研究[J].应用生态学报,2005,16(9):45—49.
[4]周志远,钟仁发,曹罕升,杨雄辉.黧蒴栲丰产栽培技术[J].湖南林业科技,2014,41(3):64—67.
[5]张胜俊,谢宜芬.黎蒴栲丰产林营造技术[J].农技服务,2009,26(1):125—125.
[6]童方平,刘振华,李贵,陈瑞.黧蒴栲芽苗截根移栽育苗及造林成效研究[J].湖南林业科技,2013,40(6):5—8.
[7]王俊,杨龙,李丹艳,任海.凋落物覆盖及掩埋对不同质量的藜蒴种子萌发和幼苗生长的影响[J].生态环境,2008,17(5):1980—1985.
[8]孙丽静,官莉莉,王正,余娜,陈红跃.不同营养条件对黎蒴栲幼苗根系生长的影响[J].广东园林,2010,32(3):64—67.
[9]童方平,蒋燚,刘振华,黄荣林,李贵,陈瑞.黧蒴栲半同胞家系生长性状变异规律及遗传参数估算[J].湖南林业科技,2013,40(3):5—8.
[10]李贵,童方平,刘振华,陈瑞,蒋燚.黧蒴栲生长过程及数量成熟、工艺成熟的初步研究[J].中南林业科技大学学报,2013,33(12):53—56.
[11]胡梦宇.藜蒴景观林的物种流研究[D].广州:华南农业大学硕士学位论文,2016.
[12]唐广大,陈德平,罗思琦,郑明轩,侯碧清,徐正春.广州从化市江浦风水林主要群落类型及其多样性初步研究[J].广东林业科技,2012,28(1):1—6.
[13]李光,周光益,王旭,吴仲民,邱治军,赵厚本,梁瑞友.南岭小坑藜蒴栲群落地上部分生物量分配规律[J].生态学报,2011,31(13):3650—3658.
[14]樊小丽,周光益,赵厚本,邱治军,刘伟新,梁瑞友.岭南藜蒴栲-罗浮柿群系粗木质残体的基本特征[J].林业科学研究,2016,29(3):448—454.
[15]刘立强,周光益,赵厚本,李力,邱治军.模拟林冠损伤对藜蒴栲群落林下植被生物多样性的影响[J].林业科学研究,2013,26(3):305—311.
[16]邱凤英,李光运,肖复明,曾伟,曹展波,林小凡,朱恒润,岳军伟.江西金盆山林区常绿阔叶林群落生物量研究[J].江西林业科技,2011(4):1—5.
[17]朱仕明,董喜光,薛立,肖玲玲,张越.外源性氮和磷添加对藜蒴林土壤养分及生化特性的影响[J].安徽农业大学学报,2015,42(3):347—352.
[18]李贵,苏晓华,童方平,蒋燚,刘振华,陈瑞.黧蒴栲半同胞家系根际土壤理化性质的差异[J].中南林业科技大学学报,2014,34(11):62—66,70.
[19]宋倩,卜朝阳,卢家仕,李春牛,李秀玲,童方平.不同基肥处理对黧蒴栲幼苗生理特性的影响[J].农学学报,2015,5(6):52—58.
[20]Zhang T J,Chow W S,Liu X T,Zhang P,Liu N,Peng C L.A magic red coat on the surface of young leaves:anthocyanins distributed in trichome layer protect Castanopsis fissa leaves from photoinhibition[J].Tree Physiology,2016,36(10):1296—1306.
[21]Liu N,Zhu W X,Sun Z Y,Yang L,Yuan S F,Ren H.Canopy size dependent facilitations from the native shrub Rhodomyrtus tomentosa to the early establishment of native trees Castanopsis fissa and Syzygium hancei in Tropical China[J].Restoration Ecology,2014,22(4):509—516.
[22]童方平,蒋燚,刘振华,黄荣林,李贵,陈瑞.黧蒴栲半同胞家系木材化学成份、热值遗传变异规律及遗传参数估算[J].中南林业科技大学学报,2013,33(6):7—11.
[23]陈羽,仲崇禄,姜清彬,张勇,陈珍.黎蒴苗木与菌根食药用菌共生体的构建与筛选[J].林业与环境科学,2016,32(3):30—34.
[24]郭晶晶.固态发酵改性促进黧蒴栲木屑压缩成型性能研究[D].长沙:湖南大学硕士学位论文,2015.
[25]唐启义,冯明光.实用统计分析及其DPS数据处理系统[M].北京:科学出版社,2002:156—159.
[26]中国科学院南京土壤研究所.土壤理化分析[M].上海:上海科学技术出版社,1978:77—153.
[27]孙丽静,陈海军,余娜.不同营养条件对黎蒴栲幼苗形态指标的影响[J].广东林业科技,2010,26(2):36—41.
[28]陆景陵.植物营养学[M].北京:中国农业大学出版社,2003:23—24.