摘要
为探明有机肥对沙地樟子松生长的影响,在沙地樟子松幼龄林、中龄林连续4年进行带状沟施有机肥(生物炭、猪粪和牛粪),测量单株树高、胸径和材积。结果表明:不同配比的有机肥可以促进沙地樟子松幼龄林和中龄林树高、胸径和单株材积生长,幼龄林最佳施肥量为生物炭66.67 kg·hm^(-2)、猪粪66.67 kg·hm^(-2)、牛粪17.80 kg·hm^(-2),中龄林最佳施肥量为生物炭53.33 kg·hm^(-2)、猪粪200.00 kg·hm^(-2)、牛粪200.00 kg·hm^(-2)。因此合理施肥能促进沙地樟子松幼龄林、中龄林的生长。
The effects of different organic fertilizers(biochar,pig manure,cow manure)on the growth of young and middle-aged Pinus sylvestris var.mongolica in sandy land were discussed.The growth of tree height,DBH and individual volume of young and middle-aged P.sylvestris var.mongolica forests in sandy land were analyzed for 4 consecutive years by applying organic fertilizers with different treatments through strip ditch fertilization.The results showed that different organic fertilization treatments(biochar,pig manure,cow manure)had promoting effects on the growth of tree height,DBH and individual volume of young and middle-aged P.sylvestris var.mongolica forests in sandy land.The best fertilization amount of biochar,pig manure and cow manure treatments were 66.67 kg·hm^(-2),66.67 kg·hm^(-2),17.80 kg·hm^(-2)in young forests,respectively.The best fertilization amount of biochar,pig manure and cow manure treatments were 53.33 kg·hm^(-2),200.00 kg·hm^(-2),200.00 kg·hm^(-2)in middle-aged forests,respectively.Therefore,the use of rational fertilization can promote the growth of young and middle-aged P.sylvestris var.mongolica forests in sandy land.
作者
卢志朋
尤国春
安宇宁
马骏
曹怡立
刘敏
杨树军
LU Zhipeng;YOU Guochun;AN Yuning;MA Jun;CAO Yili;LIU Min;YANG Shujun(Liaoning Institute of Sandy Land Control and Utilization,Fuxin 123000,China)
出处
《辽宁林业科技》
2023年第3期1-4,27,共5页
Liaoning Forestry Science and Technology
关键词
樟子松
有机肥
树高
胸径
材积
Pinus sylvestris var.mongolica
organic fertilizer
tree height
DBH
volume
