Determinants of Soil Bacterial Diversity in a Black Soil Region in a Large-Scale Area

Jiacheng Niu, Huaizhi Tang, Qi Liu, Feng Cheng, Leina Zhang, Lingling Sang, Yuanfang Huang, Chongyang Shen, Bingbo Gao and Zibing Niu
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Jiacheng Niu: College of Land Science and Technology, China Agricultural University, Beijing 100193, China
Huaizhi Tang: College of Land Science and Technology, China Agricultural University, Beijing 100193, China
Qi Liu: College of Land Science and Technology, China Agricultural University, Beijing 100193, China
Feng Cheng: China Land Surveying and Planning Institute, Beijing 100032, China
Leina Zhang: China Land Surveying and Planning Institute, Beijing 100032, China
Lingling Sang: China Land Surveying and Planning Institute, Beijing 100032, China
Yuanfang Huang: College of Land Science and Technology, China Agricultural University, Beijing 100193, China
Chongyang Shen: College of Land Science and Technology, China Agricultural University, Beijing 100193, China
Bingbo Gao: College of Land Science and Technology, China Agricultural University, Beijing 100193, China
Zibing Niu: College of Land Science and Technology, China Agricultural University, Beijing 100193, China

Land, 2022, vol. 11, issue 5, 1-16

Abstract: Soils in black soil areas are high in organic matter and rich in nutrients. Soil microorganisms are particularly critical to cultivated land. The objective of this study was to explore the influencing factors of soil bacterial diversity under special regional conditions in a black soil region. In this study, the cultivated land in a black soil area was used as the study area and a random forest was used to map the bacterial abundance in the black soil area based on 1810 sample points. DbMEM analysis was used to quantify the spatial effect of the black soil area and to identify the influencing factors of soil bacterial abundance in the black soil area in combination with soil properties, terrain, and climate. Results of a variation division showed that broad (8.336%), AT (accumulated temperature, 5.520%), and pH (4.184%) were the main factors affecting soil bacterial diversity. The broad effect was more significant in the spatial effect, which may be related to the local landscape configuration. Overall, our research showed that the influencing factors of soil bacteria will be affected by regional characteristics.

Keywords: black soil area; soil bacterial diversity; influencing factors; spatial effect; spatial heterogeneity (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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