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Article
Environmental Sciences
Zongyao Qian et al.
Summary: Plant species diversity (PSD) has beneficial effects on soil organic carbon (SOC) accumulation, and this study explores the mechanisms underlying the stimulative effects of PSD on SOC pools in a subtropical forest. The study finds that PSD enhances soil lignin accumulation through three mechanisms: stimulating plant detritus inputs, increasing reactive minerals for enhanced lignin protection, and lowering microbial C limitation for reduced lignin degradation. These findings provide valuable insights into SOC dynamics under PSD alteration and can be integrated into Earth system models for more accurate predictions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Biodiversity Conservation
Ahmed S. Elrys et al.
Summary: This study comprehensively analyzes the patterns and drivers of soil gross immobilization of ammonium (I-NH4) and nitrate (I-NO3) by considering gross N production rates, soil properties, and climate. The results show that soil I-NH4 and I-NO3 are influenced by soil gross N mineralization (GNM) and nitrification (GN), microbial biomass, organic carbon, total N, soil bulk density, pH, and precipitation. Terrestrial ecosystems and land uses also play a role in determining the levels of I-NH4 and I-NO3. These findings highlight the importance of anthropogenic activities and climate changes in affecting the fate of reactive N in soil.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Soil Science
Shuotong Chen et al.
Summary: This study investigates the changes in soil organic matter concentration and molecular composition across different fractions of soil aggregates during forest restoration. The results suggest that forest restoration not only increases the overall concentration of soil organic matter, but also alters its molecular composition, shifting from microbial dominance to plant dominance.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Soil Science
Bowen Zhang et al.
Summary: Soil physiochemical and biological properties play crucial roles in regulating nitrogen (N) transformation in soil, but the specific contributions of different soil properties remain uncertain. This study quantified the gross transformation rate of N in seven Regosolic soils in a subtropical montane agricultural landscape and identified the influences of microbial functional genes and soil properties on N transformation. The results showed that clay minerals and soil type also played important roles in regulating the rates of N transformation processes in Regosolic soils. Overall, these findings highlight the significance of clay minerals as mediators of gross N transformations in soil.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Soil Science
Farzaneh Garousi et al.
Summary: The study found that in degraded rubber plantations, the availability and supply capacity of inorganic nitrogen decreased, leading to a decline in soil quality. In contrast, soils in natural forests had higher inorganic nitrogen supply capacity and nitrate production potential.
Article
Multidisciplinary Sciences
George N. Furey et al.
Summary: The study showed that plant diversity plays a crucial role in regenerating soil fertility on degraded sandy soil. Higher plant diversity led to greater increases in soil nitrogen, potassium, calcium, magnesium, cation exchange capacity, and carbon, as well as in plant biomass. Creative use of plant diversity could aid efforts to regenerate soil carbon stores and soil fertility.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Soil Science
Yufu Jia et al.
Summary: PSR positively affects SOC concentrations at both depths, with different mechanisms driving the relationship in the topsoil versus subsoil.
SOIL BIOLOGY & BIOCHEMISTRY
(2021)
Article
Biodiversity Conservation
Ahmed S. Elrys et al.
Summary: Soil gross nitrogen mineralization is mainly controlled by climate and soil properties, with factors such as microbial biomass, total carbon, total nitrogen, precipitation, bulk density, and soil pH playing key roles. Total nitrogen accelerates mineralization by increasing microbial biomass, while lower bulk density and higher precipitation also stimulate the process. The study suggests that microbial population size, soil substrate availability, soil pH, precipitation changes, and land use can interact to influence nitrogen mineralization, ultimately impacting ecosystem productivity and nitrogen loss to the environment.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Biodiversity Conservation
Ahmed S. Elrys et al.
Summary: Soil gross nitrification is a critical process in the global nitrogen cycle, influenced by various factors such as soil total N, microbial biomass, soil pH, climate, and ecosystem type. Autotrophic and heterotrophic nitrifications contribute differently to global GN, and precipitation and temperature can affect GN rates by altering soil C:N and/or soil total N. Additionally, changes in soil properties due to anthropogenic activities may influence GN, impacting nitrate accumulation and gaseous emissions in soils under global climate and land-use changes.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Biology
Xinli Chen et al.
BIOLOGICAL REVIEWS
(2020)
Article
Biodiversity Conservation
Chao Mao et al.
GLOBAL CHANGE BIOLOGY
(2020)
Article
Environmental Sciences
Dejun Li et al.
LAND DEGRADATION & DEVELOPMENT
(2018)
Article
Ecology
Leho Tedersoo et al.
Article
Multidisciplinary Sciences
Jingjing Liang et al.
Review
Soil Science
Daniel Geisseler et al.
SOIL BIOLOGY & BIOCHEMISTRY
(2010)
