Next Article in Journal
Climate Change Adaptation and Gender Inequality: Insights from Rural Vietnam
Previous Article in Journal
A Study from Slovakia on the Transfer of Slovak Companies to Tax Havens and Their Impact on the Sustainability of the Status of a Business Entity
Previous Article in Special Issue
Effects of Carbon Addition on Dissimilatory Fe(III) Reduction in Freshwater Marsh and Meadow Wetlands
Open AccessArticle

Characteristics and Environmental Factors of Stoichiometric Homeostasis of Soil Microbial Biomass Carbon, Nitrogen and Phosphorus in China

by Haili Xue 1,2,3, Xiao Lan 1,3,*, Haoguang Liang 1,3 and Qin Zhang 1,4
1
Beijing Key Laboratory of Belt and Raod’s Data Analysis and Decision Support, China Academy of the Belt and Road Initiative, Beijing International Studies University, Beijing 100024, China
2
College of Business Administration, Capital University of Economics and Business, Beijing 100070, China
3
Beijing Advanced Innovation Center for Language Resources, Beijing Language and Culture University, Beijing 100083, China
4
State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
*
Author to whom correspondence should be addressed.
Sustainability 2019, 11(10), 2804; https://doi.org/10.3390/su11102804
Received: 12 March 2019 / Revised: 26 April 2019 / Accepted: 30 April 2019 / Published: 16 May 2019
(This article belongs to the Special Issue Geochemistry for a Sustainable Development)
Marine studies have shown that the carbon:nitrogen:phosphorus (C:N:P) atomic ratio in planktonic organisms is generally 106:16:1, which is known as the “Redfield ratio”. This raises the question of whether there are similar patterns in terrestrial organisms, particularly in soil. In this study, we extracted 404 datasets from the literature to analyze the ecological stoichiometry of C, N and P, both in the soil and in the soil microbial biomass in China; additionally, we assessed their relationships with environmental factors, and calculated the homeostasis coefficient (H) of soil microbial biomass. First, although the concentrations of C, N and P in soil and soil microbial biomass showed high spatial heterogeneity, the atomic C:N:P ratios in the soil and soil microbial biomass were relatively consistent at the national scale. Second, the influences of temperature and precipitation on stoichiometric relationships among C, N and P in the soil and soil microbial biomass were limited in China; however, they decreased with the increase in soil pH. Third, the degree of stoichiometric homeostasis for soil microbes spanned a wide range, from non-homeostasis to strict homeostasis. For single elements, most of the soil microbes’ H ranged from 1.01 to 5.00; for elemental ratios, most of the soil microbes’ H displayed strict homeostasis. This study indicates that the “Redfield-like” ratio exists in the soil microbial biomass in the 0–20 cm soil layer in China, with an atomic C:N:P ratio of 66:8:1 and it is close to the atomic C:N:P ratio in the soil (66:5:1) of terrestrial ecosystems. In addition to the N:P ratio in plants, the soil microbial biomass N:P ratio may also be used to judge the nutrient limitations because of its high stability. View Full-Text
Keywords: stoichiometric; China terrestrial ecosystems; homeostasis; Redfield-like ratio; biomes stoichiometric; China terrestrial ecosystems; homeostasis; Redfield-like ratio; biomes
Show Figures

Figure 1

MDPI and ACS Style

Xue, H.; Lan, X.; Liang, H.; Zhang, Q. Characteristics and Environmental Factors of Stoichiometric Homeostasis of Soil Microbial Biomass Carbon, Nitrogen and Phosphorus in China. Sustainability 2019, 11, 2804.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop