微生境改良对太行山干瘠山地沙地柏生长的影响
Effects of microhabitat improvement on the growth of Sabina vulgaris in the arid and barren mountainous area of Taihang Mountain
投稿时间:2019-12-03  修订日期:2020-01-31
DOI:
中文关键词:  太行山干瘠山地  微生境改良  沙地柏  生长
英文关键词:Drought and thin land in Taihang Mountain, Microhabitat improvement, Sabina vulgaris, growth
基金项目:“十二五”农村领域国家科技支撑项目(2015BAD07B0202)
作者单位E-mail
王玥 中国林科院华北林业实验中心 1097561187@qq.com 
裴顺祥 中国林业科学研究院华北林业实验中心  
辛学兵 中国林业科学研究院华北林业实验中心 xinxb01@163.com 
郭慧 中国林业科学研究院华北林业实验中心  
吴莎 中国林业科学研究院华北林业实验中心  
吴迪 中国林业科学院华北林业实验中心  
摘要点击次数: 21
全文下载次数: 0
中文摘要:
      [目的]为了探究太行山干瘠山地植被恢复技术,[方法]采用人工模拟土层厚度15cm条件下,以耐瘠薄植物沙地柏为研究对象,结合不同微生境改良技术,研究了不同微生境改良措施下沙地柏生长、叶绿素含量、露点水势及生物量分配情况。[结果]株高增长量中石块覆盖(ST)、塑料地膜覆盖(DM)、液态地膜覆盖(YM)、菌根处理(JG)、枯落物覆盖(KL)均显著高于对照(CK),且分别比CK高385.75%、403.03%、1330.00%、1490.00%、1533.00%;冠幅增长量中ST、DM、JG、KL处理均显著高于CK处理,且分别比CK处理高185.03%、160.36%、239.80%、161.67%;7月ST处理主根长度显著高于JG,10月DM、KL处理显著高于JG;不同微生境改良处理对沙地柏叶片叶绿素含量产生影响,且6、7月份DM、KL、YM、ST处理显著高于CK;相对于CK处理,除4月外,不同月份微生境改良会增加沙地柏叶片露点水势,且各处理间大部分不显著,仅7月份ST处理显著低于DM、JG、KL;不同处理对沙地柏地上、地下生物量积累产生的影响不同,且JG处理影响最显著;不同处理对沙地柏生物量分配的影响随时间变化,其中10月ST处理下的地上地下干重比值显著高于YM、KL,且CK显著高于KL,第二年6月KL显著高于CK、DM,其他月份各处理间无显著性差异。[结论]微生境改良技术可以在不同程度上显著提高太行山干瘠山地沙地柏株高、冠幅、叶片叶绿素含量、叶片露点水势、地上和地下生物量积累;通过对比不同微生境改良技术,本研究发现菌根处理明显优于其他微生境改良技术;建议在太行山土壤厚度为15cm的干瘠山地开展以沙地柏为植物材料的植被恢复时,应结合菌根处理微生境改良技术,将大大提高植被恢复的成效。
英文摘要:
      [Objective] In order to explore the vegetation restoration technology in the arid mountainous area of Taihang Mountain, [Method]a 15cm soil layer was artificially simulated, and the barren tolerant plant Sabina was used as the research object. In combination with different microhabitat improvement techniques, its growth, chlorophyll content, dew point water potential and biological Volume allocation was studied. [Result] ST, DM, YM, JG, and KL treatments were significantly higher than CK in plant height growth, and were respectively 385.75%, 403.03%, 1330.00%, 1490.00%, and 1533.00% higher than CK; In the crown growth, the ST, DM, JG, and KL treatments were significantly higher than the CK treatment, and were respectively 185.03%, 160.36%, 239.80%, and 161.67% higher than the CK treatment; The length of main root in ST treatment was significantly higher than JG in July, and DM and KL treatment in October were significantly higher than JG; The different micro-habitat improvement treatments affected the chlorophyll content of the sand cypress leaves, and the DM, KL, YM, and ST treatments in June and July were significantly higher than CK; Compared with the CK treatment, except for April, the microhabitat improvement in different months will increase the dew point water potential of cypress leaves, and most of the treatments are not significant. Only in July, the ST treatment was significantly lower than DM, JG, and KL; Different treatments have different effects on the accumulation of above-ground and underground biomass of sandy cypress, and the JG treatment has the most significant impact; The effects of different treatments on the biomass distribution of sand cypresses vary with time. Among them, the above-ground and underground dry weight ratios under the ST treatment in October were significantly higher than YM and KL, and CK was significantly higher than KL. In June of the next year, KL was significantly higher than CK, DM, no significant difference between treatments in other months.[Conclusion] Micro-habitat improvement techniques can significantly increase cypress plant height, canopy width, leaf chlorophyll content, leaf dew point water potential, and above-ground and underground biomass in the dry and barren mountains of the Taihang Mountains. By comparing different micro-habitat improvement techniques, this study found that JG treatment was significantly better Other micro-habitat improvement techniques; it is suggested that JG micro-habitat improvement techniques should be used in combination with JG micro-habitat improvement techniques when carrying out vegetation restoration using sandy cypress as a plant material in arid mountains with a soil thickness of 15 cm in the Taihang Mountains.
  查看/发表评论  下载PDF阅读器
关闭
京ICP备09064894号-3
版权所有:《林业科学研究》编辑部
地址:北京颐和园后中国林科院林业所 电话:010-62889680 E-mail:lykxyj@vip.163.com
技术支持:北京勤云科技发展有限公司