Characteristics of Soil Carbon and Nitrogen Storage and Bacterial Community Structure in Different Age Classes of Artificial Haloxylon ammodendron Forests

doi:10.11733/j.issn.1007-0435.2025.10.013

Acta Agrestia Sinica ›› 2025, Vol. 33 ›› Issue (10): 3255-3262.DOI: 10.11733/j.issn.1007-0435.2025.10.013

Characteristics of Soil Carbon and Nitrogen Storage and Bacterial Community Structure in Different Age Classes of Artificial Haloxylon ammodendron Forests

WANG Shu-juan^1,2, ZHANG Rui-jie¹, XIE Gazangzhuoma¹, ZHANG Fu¹, XIE Ai-ping³, MA Rui¹

1. College of Forestry of Gansu Agricultural University, Lanzhou, Gausu Province 730070, China;
2. Gansu Province Water Resources Department, Lanzhou, Gausu Province 730030, China;
3. Gansu Forestry Voctech University, Tianshui, Gausu Province 741020, China

Received:2024-11-01 Revised:2024-12-30 Published:2025-10-17

不同龄级梭梭人工林土壤碳氮储量及细菌群落结构特征

王淑娟^1,2, 张睿杰¹, 谢尕藏卓玛¹, 张富¹, 谢爱萍³, 马瑞¹

1. 甘肃农业大学林学院, 甘肃兰州 730070;
2. 甘肃省水利厅, 甘肃兰州 730030;
3. 甘肃林业职业技术大学, 甘肃天水 741020

通讯作者: 马瑞,E-mail:mar@gsau.edu.cn
作者简介:马瑞,E-mail:mar@gsau.edu.cn
基金资助:
中央林业改革发展资金项目[甘林规函（2022）263号]；科技厅科技专员专项（24CXGE006）；甘肃省重点人才项目（2022RCXM039）；甘肃省水利厅技术服务项目（20240316000001）资助

Abstract

Abstract: To investigate the dynamic changes in soil carbon and nitrogen storage and the bacterial community structure in different ages of Haloxylon ammodendron forests， this study selected artificial H. ammodendron forests planted at different times（5 a，15 a，25 a，30 a）in the sand stabilization belt at the frontier of the Minqin County oasis， using upwind mobile sand dunes as a control. We analyzed the dynamic changes in soil organic carbon storage and total nitrogen storage as well as the characteristics of the soil bacterial community structure throughout the growth and development stages of the forests. The results indicated that soil organic carbon and total nitrogen storage were significantly increased by the H. ammodendron forests and continued to rise with increasing forest ages. At 30 years， soil organic carbon and total nitrogen storage in the 0-100 cm soil layer of the forested area increased by 4.84 and 2.83 times， respectively， compared to the mobile sand dunes. The soil samples from five sites within the study area revealed a diverse bacterial community， belonging to 32 phyla， 94 classes， 271 orders， 327 families， 554 genera， and 674 species. Dominant bacterial groups included Bacteroidota， Proteobacteria， Cyanobacteria and Actinobacteriota. Cyanobacteria， Acidobacteriota， and Deinococcota significantly influenced the soil organic carbon and total nitrogen storage of the study area. In conclusion， valuable insights were provided for the development of artificial forests and the ecological management of sandy lands by this study.

Key words: Artificial Haloxylon ammodendron forest, Soil organic carbon, Soil total nitrogen, Soil bacteria community

摘要： 为探究不同龄级梭梭（Haloxylon ammodendron）林土壤碳氮储量变化及细菌群落结构，在民勤县绿洲前沿的阻沙固沙带选择不同建植时间（5 a，15 a，25 a，30 a）的梭梭人工林，以流动沙丘为对照，分析梭梭林生长发育过程中土壤有机碳、全氮储量变化及细菌群落结构特征。结果表明：梭梭林显著提高了土壤有机碳、全氮储量，且随林龄增长而增加，30 a林地0~100 cm深度内土壤有机碳、全氮储量较流动沙丘增长4.84和2.83倍；研究区5处样地土壤细菌隶属于32门，94纲、271目、327科、554属、674种，土壤细菌优势菌群为拟杆菌门和变形菌门，其中蓝藻菌门、酸杆菌门及奇球菌门显著影响土壤有机碳、氮储量。综上所述，该研究可为沙化土地人工林建设及生态管理提供参考。

关键词: 梭梭人工林, 土壤有机碳, 土壤全氮, 土壤细菌群落

CLC Number:

S714

WANG Shu-juan, ZHANG Rui-jie, XIE Gazangzhuoma, ZHANG Fu, XIE Ai-ping, MA Rui. Characteristics of Soil Carbon and Nitrogen Storage and Bacterial Community Structure in Different Age Classes of Artificial Haloxylon ammodendron Forests[J]. Acta Agrestia Sinica, 2025, 33(10): 3255-3262.

王淑娟, 张睿杰, 谢尕藏卓玛, 张富, 谢爱萍, 马瑞. 不同龄级梭梭人工林土壤碳氮储量及细菌群落结构特征[J]. 草地学报, 2025, 33(10): 3255-3262.

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Characteristics of Soil Carbon and Nitrogen Storage and Bacterial Community Structure in Different Age Classes of Artificial Haloxylon ammodendron Forests

不同龄级梭梭人工林土壤碳氮储量及细菌群落结构特征

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