Integrative Biology Journals

JOURNAL OF FORESTRY RESEARCH ›› 2024, Vol. 35 ›› Issue (1): 3-.DOI: 10.1007/s11676-023-01654-x

• Original Paper • Previous Articles     Next Articles

Afforestation increases microbial diversity in low-carbon soils

Xuesen Pang1,2, Chuankuan Wang1, Chengjie Ren3, Zhenghu Zhou1,2,d   

  1. 1 Center for Ecological Research, Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, Northeast Forestry University, 150040, Harbin, People’s Republic of China
    2 Northeast Asia Biodiversity Research Center, Northeast Forestry University, 150040, Harbin, People’s Republic of China
    3 State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, 712100, Yangling, People’s Republic of China
  • Received:2022-12-26 Accepted:2023-04-19 Online:2024-10-16 Published:2024-10-16
  • Contact: Zhenghu Zhou

Abstract:

Afforestation has an important role in biodiversity conservation and ecosystem function improvement. A meta-analysis was carried out in China, which has the largest plantation area globally, to quantify the effects of plantings on soil microbial diversity. The results showed that the overall effect of afforestation on soil microbial diversity was positive across the country. Random forest algorithm suggested that soil carbon was the most important factor regulating microbial diversity and the positive response was only found with new plantings on low-carbon bare lands but not on high-carbon farmlands and grasslands. In addition, afforestation with broadleaved species increased microbial diversity, whereas planting with conifers had no effect on microbial diversity. This study clarified the effects of plantings on soil microbial diversity, which has an important implication for establishing appropriate policies and practices to improve the multiple functionalities (e.g., biodiversity conservation and climate change mitigation) during plantation establishment.

Key words: Afforestation, Microbial diversity, Soil microbial communities, Species-energy theory, Plantations