湿地松在贵州国有龙里林场不同海拔造林试验研究
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摘要
指出了在贵州省中部,湿地松林分生长量有规律地显示出随海拔的增高而降低,海拔愈高,林分生长量愈低,海拔高于1300m时,生长量较低,在此生长的湿地松幼树,冬季均发现少数冻害,因此海拔1300～1400m,是贵州中部发展湿地松的上限,海拔是限制湿地松垂直发展的主要因子。试验结果表明:湿地松适合于贵州省中部低中山(海拔1300m以下)发展,可列为这一地区营造速生丰产林的主要造林树种之一。
In the central part of Guizhou Province,the growth amount of wetland Pinus elliottii shows a regular decrease with the increase of elevation.The higher the elevation is,the lower the growth of forest is.When the altitude is above 1300 meters,the growth is poor and there are a few frost damages in winter.So,the altitude of 1300-1400 meters is the upper limit of the development of Pinus elliottii in central Guizhou.The altitude is the main factor limiting the vertical development of Pinus elliottii.Pinus elliottii is suitable for the development of low Zhongshan(less than 1300 meters above sea level)in central Guizhou province,which can be listed as one of the main afforestation tree species for the construction of fast-growing and high-yield forests in this region.
In the central part of Guizhou Province,the growth amount of wetland Pinus elliottii shows a regular decrease with the increase of elevation.The higher the elevation is,the lower the growth of forest is.When the altitude is above 1300 meters,the growth is poor and there are a few frost damages in winter.So,the altitude of 1300-1400 meters is the upper limit of the development of Pinus elliottii in central Guizhou.The altitude is the main factor limiting the vertical development of Pinus elliottii.Pinus elliottii is suitable for the development of low Zhongshan(less than 1300 meters above sea level)in central Guizhou province,which can be listed as one of the main afforestation tree species for the construction of fast-growing and high-yield forests in this region.
引文
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[6]邓君晖,黄成文,曾凯,等.丘陵区引种湿地松、火炬松效果的调查[J].绿色科技,2017,7(13):16~17.
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[8]陈德传.霍邱县湿地松生长情况评述[J].安徽林业科技,2003(3):7~8.
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[2]马泽清,刘琪璟,王辉民,等.中亚热带湿地松人工林生长过程[J].生态学报,2011,31(6):1525~1537.
[3]姜德鸿,苏杰,王华江,等.湿地松生长规律研究[J].湖北林业科技,2006(3):10~11.
[4]陈文友,张习耕,陈志.湿地松人工林生长分析[J].四川林业科技,1997(12):44~45.
[5]韩永美.人工湿地松林不同经营方式及其效果浅析[J].湖北林业科技,2010(1):19~22.
[6]邓君晖,黄成文,曾凯,等.丘陵区引种湿地松、火炬松效果的调查[J].绿色科技,2017,7(13):16~17.
[7]徐有明,林汉,魏柏松,等.间伐强度对湿地松人工林木材质量的影响效应[J].东北林业大学学报,2002,30(2):38~41.
[8]陈德传.霍邱县湿地松生长情况评述[J].安徽林业科技,2003(3):7~8.
[9]周文臻.东安县湿地松人工林生长现状与发展对策[J].现代农业科技,2008(7):44~45.
[10]潘寅辉,盛方清.不同造林因子对湿地松成活率和生长的影响[J].防护林科技,2006(11):28~30.