[1]赵晶晶,杜其霖,国润才,等.模拟酸雨对大兴安岭3 个树种凋落叶分解速率和溶解有机碳的影响[J].浙江林业科技,2017,37(05):10-15.[doi:10.3969/j.issn.1001-3776.2017.05.002]
 ZHAO Jing-jing,DU Qi-lin,GUO Run-cai,et al.Effect of Simulated Acid Rain on Decomposition Rate and Dissolved Organic Carbonof Leaf Litter of Three Tree Species in Genhe[J].Journal of Zhejiang Forestry Science and Technology,2017,37(05):10-15.[doi:10.3969/j.issn.1001-3776.2017.05.002]
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模拟酸雨对大兴安岭3 个树种凋落叶分解速率和溶解有机碳的影响()
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《浙江林业科技》[ISSN:1001-3776/CN:33-1112/S]

卷:
37
期数:
2017年05期
页码:
10-15
栏目:
出版日期:
2017-11-30

文章信息/Info

Title:
Effect of Simulated Acid Rain on Decomposition Rate and Dissolved Organic Carbonof Leaf Litter of Three Tree Species in Genhe
作者:
赵晶晶1杜其霖2国润才1刘志强3程宇琪1王雨晴1杜浩1张成福1
1. 内蒙古农业大学 沙漠治理学院,内蒙古 呼和浩特 010010;2. 内蒙古自治区水利科学研究院,内蒙古 呼和浩特 010051;3. 内蒙古自治区大兴安岭林管局营林处,内蒙古 呼伦贝尔 021000
Author(s):
ZHAO Jing-jing1DU Qi-lin2 GUO Run-cai1LIU Zhi-qiang3CHENH Yu-qi1WANG Yu-qing1DU Hao1ZHANG Cheng-fu1
1. College of Desert Control Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010010, China; 2. HydraulicResearch Institution of Inner Mongol Autonomous Region , Hohhot 010051, China; 3. Daxing’anling Froestry Bureau of InnerMongolia Autonomous Region, Hulun Buir 021000, China
关键词:
模拟酸雨凋落叶分解溶解有机碳分解速率
Keywords:
simulated acid rain leaf litter decomposition DOC decomposition rate
分类号:
S714
DOI:
10.3969/j.issn.1001-3776.2017.05.002
文献标志码:
A
摘要:
利用室内分解袋法研究模拟酸雨对大兴安岭根河地区白桦Betula platyphylla,杜香Ledum palustre,兴安杜鹃Rhododendron dauricum 凋落叶分解速率及分解释放溶解有机碳的影响,分别设置pH3.5,5.0 和7.0 三个梯度。结果表明,分解过程中3 个树种凋落叶在pH 3.5 的质量损失最少,其次是pH 5.0 和7.0;不同树种对酸雨胁迫的影响具有一定的差异;3 个树种凋落叶的失重率为:杜香>白桦>兴安杜鹃;3 个树种凋落叶的失重率和分解速率均与凋落叶初始C 浓度、木质素浓度、C/N 比和木质素/N 呈显著负相关,与N,P 和纤维素浓度呈显著正相关;3 个树种凋落叶分解释放溶解有机碳都是先增加后减少,后趋于动态平衡减少状态。
Abstract:
Experiments were conducted by ltter bag technique on effect of simulated acid rain on decomposition rate and content of dissolvedorganic carbon(DOC)from leaf letter of Betula platyphylla, Ledum palustre and Rhododendron dauricum treated with pH 3.5, 5.0 and 7.0 in Genhe,Inner Mongolia Autonomous Region. The results showed that leaf litter mass of 3 species reduced the less under treatment of pH 3.5, and then underpH 5.0 and pH 7.0.The mass loss rate of three species litter leaf was ordered by L.palustre>B.platyphylla>R.dauricum. The experiment resulted thatleaf litter decomposition rate and mass loss rate had a significant negative correlation with the content of C, lignin, C/N, lignin/N, but had remarkablepositive correlation with the content of N, P and cellulose. Decomposition and release of DOC from different litters had the same tendency, increasedfirst and then decreased, and then decreased slowly.

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备注/Memo

备注/Memo:
收稿日期:2017-09-07;修回日期:2017-11-12基金项目:国家自然科学基金项目(No.41461106);内蒙古农业大学引进人才科研启动项目(No.YJ2014-1)作者简介:赵晶晶,硕士,从事水土保持与荒漠化防治研究;E-mail:923843551@qq.com。通信作者:张成福,博士;E-mail:ch893169@dal.ca。
更新日期/Last Update: 2017-10-20