欢迎访问《农学学报》，
农学学报

农学学报 ›› 2025, Vol. 15 ›› Issue (9): 14-20.doi: 10.11923/j.issn.2095-4050.cjas2024-0133

• 土壤肥料 资源环境 生态 • 上一篇    下一篇

不同平茬处理对西鄂尔多斯花棒细根化学性状及土壤养分的影响

刘庆超1(), 郭月峰1(), 祁伟2, 林佳3   

  1. 1 内蒙古农业大学沙漠治理学院，呼和浩特 010018
    2 内蒙古自治区水利事业发展中心，呼和浩特 010020
    3 内蒙古自治区阿拉善盟水务综合服务中心，内蒙古阿拉善盟 750300
  • 收稿日期:2024-07-03 修回日期:2025-03-13 出版日期:2025-09-20 发布日期:2025-09-17
  • 通讯作者:
    郭月峰，女，1982年出生，内蒙古呼和浩特人，副教授，博士，主要从事水土保持领域研究。通信地址：010018 内蒙古呼和浩特市鄂尔多斯东街29号沙漠治理学院，E-mail：。
  • 作者简介:

    刘庆超，男，2000年出生，内蒙古赤峰人，在读研究生，主要从事林业研究。通信地址：010018 内蒙古呼和浩特市鄂尔多斯东街29号沙漠治理学院，E-mail：。

  • 基金资助:
    内蒙古自然科学基金项目“西鄂尔多斯地区花棒平茬后植物根系与根系微环境的调控机制”(2022MS03029); 内蒙古自治区直属高校基本科研业务费项目“生态脆弱区沙柳根系构型变化对调节平茬后林木生长的机理研究”(BR22-15-01)

Effects of Different Flat Stubble Treatments on Chemical Properties of Fine Roots and Soil Nutrients of Hedysarum scoparium in West Ordos

LIU Qingchao1(), GUO Yuefeng1(), QI Wei2, LIN Jia3   

  1. 1 College of Desert Control Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018
    2 Inner Mongolia Water Conservancy Development Center, Hohhot 010020
    3 Inner Mongolia Autonomous Region Alashan League Water Integrated Service Center, Alashan League Inner Mongolia 750300,
  • Received:2024-07-03 Revised:2025-03-13 Online:2025-09-20 Published:2025-09-17

RichHTML

3

PDF (PC)

14

摘要： 为解决内蒙古西鄂尔多斯地区花棒(Hedysarum scoparium)人工灌木林发育较差、退化严重等瓶颈问题，筛选促进花棒生长的最优平茬高度，以西鄂尔多斯鄂托克旗花棒人工灌木林为研究对象，进行0 cm (H1)、10 cm (H2)和20 cm (H3)平茬处理，并以未平茬花棒作为对照(CK)，分析不同平茬处理对花棒细根化学性状及土壤养分的影响。结果表明：（1）花棒细根化学性状各指标表明，10 cm平茬处理优于其他平茬处理，且平茬第二年优于第一年，10 cm平茬第二年花棒细根碳含量、细根氮含量、细根碳氮比均值分别为346.72、4.91、70.57 g/kg。（2）不同平茬处理下，花棒林下土壤养分亦有不同，10 cm平茬处理最优，土壤有机质、土壤速效氮、土壤速效磷、土壤速效钾分别为6.61、6.11、2.48、28.43 g/kg；且土壤养分随土层深度增加逐渐降低，0~10 cm表层土层最优。（3）对平茬第二年各指标进行隶属函数综合分析，表现为10 cm平茬处理最优。本研究为科学指导西鄂尔多斯乃至相似荒漠环境下的生态保护与修复行动提供理论基础与技术支持。

关键词: 平茬, 花棒, 细根化学性状, 土壤养分

Abstract:

To solve the bottleneck problems of poor development and serious degradation of Hedysarum scoparium artificial shrubbery in the western Ordos region of Inner Mongolia, and to screen the optimal stubble height for promoting the growth of Hedysarum scoparium, the artificial shrubbery of Hedysarum scoparium in Etuoke Banner of western Ordos was taken as the research object. The 0 cm (H1), 10 cm (H2) and 20 cm (H3) stubble treatments were carried out, and the non-stubble Hedysarum scoparium was used as the control (CK). The effects of different stubble treatments on the fine root chemical properties and soil nutrients of Hedysarum scoparium were analyzed. The results showed that: (1) the chemical traits of fine roots of Hedysarum scoparium showed that the 10 cm flat stubble treatment was superior to other flat stubble treatments, and the average values of fine root carbon content, fine root nitrogen content and fine root carbon-nitrogen ratio in the second year of flat stubble were 346.72, 4.91 and 70.57 g/kg, respectively. (2) Under different flat stubble treatments, the soil nutrients under Hedysarum scoparium forest were also different. The 10 cm flat stubble treatment was the best, and the soil organic matter, soil available nitrogen, soil available phosphorus and soil available potassium were 6.61, 6.11, 2.48 and 28.43g/kg, respectively. The soil nutrients gradually decreased with the increase of soil depth, and the 0-10 cm surface soil layer was the best. (3) The comprehensive analysis of membership function of each index in the second year of flat stubble showed that 10 cm flat stubble treatment was the best. The paper provided a theoretical basis and technical support for the scientific guidance of ecological protection and restoration actions in western Ordos and even similar desert environments.

Key words: flat stubble, Hedysarum scoparium, fine root chemical traits, soil nutrients