[1]高云昌,赵广智,马增旺,等. 河北坝上地区2种主要人工固沙林的生物学稳定性研究[J].西北林学院学报,2022,37(5):30-35.[doi:10.3969/j.issn.1001-7461.2022.05.05]
　GAO Yun-chang,ZHAO Guang-zhi,MA Zeng-wang,et al. Biological Stability of Two Main Sand-fixation Plantations in Bashang Area of Hebei Province[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2022,37(5):30-35.[doi:10.3969/j.issn.1001-7461.2022.05.05]
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 河北坝上地区2种主要人工固沙林的生物学稳定性研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第37卷
期数:
2022年第5期
页码:
30-35
栏目:
出版日期:
2022-09-30

文章信息/Info

Title:
 Biological Stability of Two Main Sand-fixation Plantations in Bashang Area of Hebei Province
文章编号:
1001-7461(2022)05-0030-06
作者:
 高云昌1; 2; 赵广智1; 2; 马增旺1; 2; 邢存旺1; 2*; 刘春鹏1; 2
 （1.河北省林业和草原科学研究院，河北 石家庄 050061；2.河北丰宁沙地生态系统国家定位观测研究站，河北 丰宁 068357）
Author(s):
 GAO Yun-chang1; 2; ZHAO Guang-zhi1; 2; MA Zeng-wang1; 2; XING Cun-wang1; 2*; LIU Chun-peng1; 2
 (1.Hebei Academy of Forestry and Grass Science,Shijiazhuang 050061,Hebei,China; 2.Hebei Fengning Desert Ecosystem Research Station,Fengning 068357,Hebei,China)
关键词:
 ; 人工固沙林; 生物学稳定性; 北京杨; 樟子松
Keywords:
 ; sand-fixation plantation;  biological stability;  Populus beijingensis;  Pinus sylvestris var.mongolica
分类号:
S727.23
DOI:
10.3969/j.issn.1001-7461.2022.05.05
文献标志码:
A
摘要:
 通过林木保存率、林木生长、自然更新和防护功能4个指标来反映河北坝上地区北京杨和樟子松2种主要人工固沙林的生物学稳定性。结果表明，北京杨随着林龄的增长，死亡株数迅速增加，25 a林木保存率仅有21.5%，且生长衰退现象严重，大多为萌生个体，幼树全部为萌蘖更新，5 a和25 a林分内的输沙率分别为5.7、5.1 g·cm-1·d-1；24 a樟子松林木保存率达到70.4%，但生长分化现象严重，林内存在天然更新幼苗，但数量很少，8 a和24 a生林分内的输沙率分别为1.9、0 g·cm-1·d-1。坝上地区北京杨人工固沙林生物学稳定性差，而樟子松人工固沙林则有较高的生物学稳定性。人工固沙林的生物学稳定性从林分层次反映了造林树种对造林地自然环境的适应性，研究结果可为坝上地区的造林树种选择和经营管理提供理论参考。
Abstract:
 The biological stability of sand fixation plantation reflects the adaptability of the tree species to the natural environment at the level of stand.In this paper,the biological stabilities of two sand fixation plantations (Populus beijingensis and Pinus sylvestris var.mongolica) in Bashang of Hebei Province were studied based on indexes related to preserve rate,stand growth,natural regeneration and protection function.The results showed that the rate of preserve rate of 25-year-old P.beijingensis plantation was just 21.5%,which decreased rapidly with the stand growth.The growth recession was serious.Most of the trees within the stand were individual ramets and all the saplings were clone propagation.The sand transporting rates of 5 a and 25 a plantations were 5.7 and 5.1 g·cm-1·d-1,respectively.For P.sylvestris var.mongolica plantation,the preserve rate of 24-year-old stand was 70.4%,but the growth differentiation was serious.There were seedlings that were naturally generated,the number was very few.The sand transporting rates in 8 a and 24 a plantations were 1.9 and 0 g·cm-1·d-1,respectively.The biological stability of P.beijingensis plantation was under the condition of low level.While P.sylvestris var.mongolica plantation showed high level.The results of the research can provide theoretical reference for the tree species choice and management of sand-fixation plantation in Bashang Area.

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备注/Memo

备注/Memo:
 收稿日期：2021-09-17修回日期：2021-11-16
基金项目：河北省重点研发计划项目（19226814D）；中央财政林业和草原科技推广示范项目（冀TG〔2020〕003号）。
第一作者：高云昌，硕士，工程师。研究方向：荒漠化防治。E-mail:493008924@qq.com
*通信作者：邢存旺，博士，正高级工程师。研究方向：荒漠化防治。E-mail:xingcunwang@163.com
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