京郊荒滩地短期植被恢复对土壤理化性质及微生物群落结构的影响

李晓娜; 王超; 张微微; 赵春桥; 史瑞双; 薛瑞彬; 樊冉冉

doi:10.13870/j.cnki.stbcxb.2019.05.050

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京郊荒滩地短期植被恢复对土壤理化性质及微生物群落结构的影响

更新时间：2025-03-12

- 京郊荒滩地短期植被恢复对土壤理化性质及微生物群落结构的影响
- Effects of Short-term Vegetation Restoration on Soil Physicochemical Characteristics and Microbial Community Structures in the Wasteland of Beijing Suburb
- 水土保持学报 2019年33卷第5期页码：343-348
- 作者机构：
  
  北京市农林科学院北京草业与环境研究发展中心,北京,100097
- 作者简介：
  
  [ "李晓娜(1977-),女,副研究员,主要从事农业面源污染生态阻控技术与受损生态系统植被恢复与重建研究。E-mai:lxn1977@126.com" ]
- 基金信息：
  
  公益性行业（农业）科研专项（201503106）北京市农林科学院科技创新能力建设专项（KJCX20180405，KJCX20180707）
- DOI：10.13870/j.cnki.stbcxb.2019.05.050
  中图分类号：
- 纸质出版：2019
- 稿件说明：
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李晓娜, 王超, 张微微, 等. 京郊荒滩地短期植被恢复对土壤理化性质及微生物群落结构的影响[J]. 水土保持学报, 2019,33(5):343-348.

LI Xiaona, WANG Chao, ZHANG Weiwei, et al. Effects of Short-term Vegetation Restoration on Soil Physicochemical Characteristics and Microbial Community Structures in the Wasteland of Beijing Suburb[J]. 2019, 33(5): 343-348.
李晓娜, 王超, 张微微, 等. 京郊荒滩地短期植被恢复对土壤理化性质及微生物群落结构的影响[J]. 水土保持学报, 2019,33(5):343-348. DOI： 10.13870/j.cnki.stbcxb.2019.05.050.

LI Xiaona, WANG Chao, ZHANG Weiwei, et al. Effects of Short-term Vegetation Restoration on Soil Physicochemical Characteristics and Microbial Community Structures in the Wasteland of Beijing Suburb[J]. 2019, 33(5): 343-348. DOI： 10.13870/j.cnki.stbcxb.2019.05.050.

摘要

为了揭示京郊荒滩地植被恢复初期土壤理化性质与微生物群落结构的变化特征，以补播苜蓿（Medicago sativa L.）、补播无芒雀麦（Bromus inermis Leyss）为研究对象，自然撂荒地为对照，采用高通量测序方法研究不同植被恢复模式土壤细菌与真菌的群落结构。结果表明：（1）2种植被恢复方式下土壤全氮含量显著高于对照，补播无芒雀麦土壤全磷含量最高；（2）2种植被恢复方式短期内显著改善了土壤物理性质，土壤容重显著低于对照，补播无芒雀麦土壤田间持水量、毛管持水量与最大持水量最高，补播苜蓿土壤饱和导水率最高；（3）2种植被恢复方式短期内对土壤微生物群落结构产生影响，真菌中的子囊菌门、细菌中的蓝细菌门相对丰度增加，真菌与细菌的生物多样性降低；（4）相关性分析表明，土壤有机质含量与真菌中的子囊菌门、细菌中的变形菌门、蓝细菌门数量存在显著正相关关系。2种植被恢复方式短期内均不同程度的改善了土壤理化性质，增加了固氮及降解有机质的微生物的数量及活性。

Abstract

In order to understand the effect of short-term vegetation restoration on soil physicochemical and microbial community structure

two plants (Medicago sativa L. and Bromus inermis Leyss) were reseeded in the wasteland of Yanqing County

Bejing

and the abandoned land was the CK. Soil bacterial community structures of the V3-V4 16S rDNA gene region and fungi community structures of ITS1-ITS2 were examined by high-throughput sequencing technologies. The results showed that:(1) The soil total nitrogen contents of two vegetation restoration modes were significantly higher than that of CK

and the soil total phosphorus content of reseeded bromegrass was the highest. (2) In the short term

the soil physical properties were significantly improved by the two vegetation restoration modes

and the soil bulk density was significantly lower than that of CK. (3) The soil microbial community structure was affected by two vegetation restoration modes in a short period of time. The relative abundance of ascomycetes in fungi and cyanobacteria in bacteria increased and the biodiversity of fungi and bacteria decreased under two vegetation restorations. (4) Correlation analysis showed that there was a significant positive correlation between soil organic matter contents and the number of ascomycetes

cyanobacteria

and proteobacteria. The two vegetation restoration modes improved the soil physical and chemical properties

and promoted the amount and activity of microorganisms that fixed nitrogen and degraded organic matter.

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