不同条件下小青杨新无性系生长量对比分析
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摘要
选择小青杨新无性系为研究对象,通过对其成活率、不同坡位生长量、施肥量以及造林混交配置研究,确定小青杨新无性系最佳造林技术要点。结果表明:(1)小青杨新无性系更适合在坡下部造林,其胸径年均生长量0.25 cm,当年新枝平均生长量101.83 cm;(2)小青杨新无性系更适合与青海云杉混交造林,平均成活率达到96.7%;(3)小青杨新无性系造林时每株施200 g磷酸二铵作为基肥,采取块状混交造林,其胸径年均生长量0.27cm,当年新枝平均生长量107.67 cm。
Taking Populus cathayana × Populus simonii as research object,survival rate,through studying the growth on different slope positions & way of breeding of new clones of Populus cathayana × Populus simonii,the optimal way of breeding the new clones of Populus cathayana × Populus simonii were determined. Result shows that:( 1) The new clones of Populus cathayana × Populus simonii are more suitable for breeding in the downhill;the average growth of DBH is 0. 2 5 cm,and the average annual growth of new shoots is 1 0 1. 8 3 cm.( 2) New clone of Populus cathayana × Populus simonii is more suitable for breeding mixed forest with Picea crassifolia; the average survival rate of 6 test plots is 9 6. 7 %.( 3) The new clone of Populus cathayana × Populus simonii is more suitable for the breeding of 2 0 0 g basal fertilizer( diammonium); the growth of DBH & new branch is 0. 2 7 cm and1 0 7. 6 7 cm respectively.
Taking Populus cathayana × Populus simonii as research object,survival rate,through studying the growth on different slope positions & way of breeding of new clones of Populus cathayana × Populus simonii,the optimal way of breeding the new clones of Populus cathayana × Populus simonii were determined. Result shows that:( 1) The new clones of Populus cathayana × Populus simonii are more suitable for breeding in the downhill;the average growth of DBH is 0. 2 5 cm,and the average annual growth of new shoots is 1 0 1. 8 3 cm.( 2) New clone of Populus cathayana × Populus simonii is more suitable for breeding mixed forest with Picea crassifolia; the average survival rate of 6 test plots is 9 6. 7 %.( 3) The new clone of Populus cathayana × Populus simonii is more suitable for the breeding of 2 0 0 g basal fertilizer( diammonium); the growth of DBH & new branch is 0. 2 7 cm and1 0 7. 6 7 cm respectively.
引文
[1]夏萍,石常兰.小青杨新无性系选育报告[J].青海农林科技,2013(3):36-37
[2]石常兰,夏萍.小青杨新无性系与青杨育苗对比试验报告[J].青海农林科技,2013(3):63-64
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[12]黄彩霞,张明,巴玉春,等.造林密度对新疆杨人工林生长发育和光合特性的影响[J].甘肃农业大学学报,2017,52(2):61-64,70
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[15]姜鹏,崔丽红,秦召文,等.小黑杨胸径和树高的生长动态[J].西北林学院学报,2013,28(6):129-133
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[2]石常兰,夏萍.小青杨新无性系与青杨育苗对比试验报告[J].青海农林科技,2013(3):63-64
[3]吴雅琼,汪贵斌,曹福亮,等.基质、插穗及促根剂对喜树扦插生根的影响[J].南京林业大学学报:自然科学版,2016,40(3):1-8
[4]孙雪新,陶毅,康向阳,等.新型促根剂L—1号,L—2号在难繁杨树扦插中的应用[J].甘肃农大学报,1989(1):92-95
[5]吴林森,柳新红,谢真铭,等.基肥施用对杨树幼林生长的影响[J].防护林科技,2007(3):12-13
[6]黄波,苏晓,陈卫红,等.杨树人工林郁闭林分的施肥效应研究[J].山东林业科技,2013,43(3):20-23
[7]田新华,祁永会,卢慧颖,等.寒地杨树新品种杂交选育及苗木繁育技术[J].林业科技,2009,34(2):11-13
[8]王旭军,吴际友,程勇,等.响叶杨良种繁育研究进展[J].湖南林业科技,2006(5):72-74
[9]马骏,段丽华,何承忠,等.不同立地类型对引种美洲黑杨生长的影响[J].安徽农业科学,2015,43(36):225-226,246
[10]郑晓东,方贵儒,吴耀先,等.不同混交方式的人工林生长评价[J].林业实用技术,2005(6):18-19
[11]廖启平,周武江.速生杨树苗栽培技术与造林密度管理的相关性探究[J].现代园艺,2017(6):56-57
[12]黄彩霞,张明,巴玉春,等.造林密度对新疆杨人工林生长发育和光合特性的影响[J].甘肃农业大学学报,2017,52(2):61-64,70
[13]王浩,于洪军,李玉航,等.半干旱沙区整地对彰武小钻杨生长的影响[J].辽宁林业科技,2011(4):30-31
[14]曲喜彬,徐龙海,张东林.坡位对大青杨生长影响的初步分析[J].防护林科技,2013(4):15-16
[15]姜鹏,崔丽红,秦召文,等.小黑杨胸径和树高的生长动态[J].西北林学院学报,2013,28(6):129-133
[16]刘亨银,陵军成.不同扦插方式对新疆杨插条育苗成活率和生长量的影响[J].林业科技通讯,2017(9):34-35