Effects of elevated atmospheric CO2 and nitrogen deposition on leaf litter and soil carbon degrading enzyme activities in a Cd-contaminated environment: A mesocosm study.

Rising atmospheric CO2 concentration and nitrogen (N) deposition are changing terrestrial carbon (C) cycle; however, little has been known about such impacts in a heavy-metal-contaminated environment. This study conducted an open-top chamber experiment to explore the impacts of rising atmospheric CO2 concentration and N deposition on the leaf litter and soil C cycle in cadmium (Cd)-contaminated environment. The experiment include five treatments: control, Cd (30 g ha-1 yr-1) addition, Cd addition under elevated CO2 (700 ppm CO2), Cd and N(100 kg ha-1 yr-1) additions, and Cd and N additions under elevated CO2, with three replicates per treatment. Leaf litter and soil C cycle were indexed by microbial biomass C concentration and the activities of four key C-degrading enzyme (β-glucosidase (BG), cellobiohydrolase (CBH), polyphenol oxidase (PPO), and peroxidase (POD)) in litter and soil. Results showed that, after one year treatment, Cd addition negatively affected the activities of all four C-degrading enzyme in litter and soil; while elevated CO2 and N addition essentially alleviated these negative effects. Elevated CO2 and N addition increased C-degrading enzyme activities more of the non-legume (i.e., Cinnamomum camphora) litter than those of the legume (i.e., Acacia auriculiformis) litter. Elevated CO2, N addition, and Cd addition all affected C-degrading enzyme activities via their effects on the microbial biomass C concentration and C and N availability of the litter and soil samples. We suggest that rising atmospheric CO2 concentration and N deposition can offset the detrimental effect of Cd on the litter and soil C-degrading enzyme activities in forest ecosystems.

• Publication year

  2019

• Venue

  Science of the Total Environment

• Publication date

  2019-03-28

• Fields of study

  Medicine, Chemistry, Environmental Science

• Identifiers
  DOI 10.1016/j.scitotenv.2019.03.374PMID 30928745
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

• Chronic nitrogen deposition influences the chemical dynamics of leaf litter and fine roots during decomposition

  2017cited by this paper
• Is surface water acidification a serious regional issue in China?

  2017cited by this paper
• Estimating decay dynamics for enzyme activities in soils from different ecosystems

  2017cited by this paper
• Litter decomposition, residue chemistry and microbial community structure under two subtropical forest plantations: A reciprocal litter transplant study

  2016cited by this paper
• Linkages between extracellular enzyme activities and the carbon and nitrogen content of grassland soils

  2016cited by this paper
• CO2 enrichment and N addition increase nutrient loss from decomposing leaf litter in subtropical model forest ecosystems

  2015cited by this paper
• Phosphatase activity in relation to key litter and soil properties in mature subtropical forests in China.

  2015cited by this paper
• Heavy Metal Contamination in Soils of Remnant Natural and Plantation Forests in an Urbanized Region of the Pearl River Delta, China

  2014cited by this paper
• Shifts in soil phosphorus fractions under elevated CO2 and N addition in model forest ecosystems in subtropical China

  2014cited by this paper
• Effects of nitrogen addition on litter decomposition, soil microbial biomass, and enzyme activities between leguminous and non-leguminous forests

  2013cited by this paper
• Do legumes and non-legumes tree species affect soil properties in unmanaged forests and plantations in Costa Rican dry forests?

  2013cited by this paper
• A Meta-analysis of Climatic and Chemical Controls on Leaf Litter Decay Rates in Tropical Forests

  2012cited by this paper
• Effects of Elevated CO2 and N Addition on Growth and N2 Fixation of a Legume Subshrub (Caragana microphylla Lam.) in Temperate Grassland in China

  2011cited by this paper
• Hydrolytic enzyme activities, carbon dioxide production and the growth of litter degrading fungi in different soil layers in a coniferous forest in Northern Finland

  2011cited by this paper
• Reduction of forest soil respiration in response to nitrogen deposition

  2010cited by this paper
• Evolutionary-Economic Principles as Regulators of Soil Enzyme Production and Ecosystem Function

  2010cited by this paper
• Litter- and ecosystem-driven decomposition under elevated CO2 and enhanced N deposition in a Sphagnum peatland

  2010cited by this paper
• Long-term tree growth rate, water use efficiency, and tree ring nitrogen isotope composition of Pinus massoniana L. in response to global climate change and local nitrogen deposition in Southern China

  2010cited by this paper
• Enzyme activities in apple orchard agroecosystems: how are they affected by management strategy and soil properties.

  2009cited by this paper
• Microbial biomass and enzyme activities under reduced nitrogen deposition in a spruce forest soil

  2009cited by this paper
• Spatial variability of enzyme activities and microbial biomass in the upper layers of Quercus petraea forest soil

  2008cited by this paper
• Transformation of the Nitrogen Cycle: Recent Trends, Questions, and Potential Solutions

  2008cited by this paper
• Response of Litter Decomposition to Simulated N Deposition in Disturbed, Rehabilitated and Mature Forests in Subtropical China

  2006cited by this paper
• Responses of extracellular enzymes to simple and complex nutrient inputs

  2005cited by this paper
• Extracellular Enzyme Activities and Soil Organic Matter Dynamics for Northern Hardwood Forests receiving Simulated Nitrogen Deposition

  2005cited by this paper
• Microbial enzyme activities in leaf litter, humus and mineral soil layers of European forests

  2004cited by this paper
• Evaluating the Fit of Structural Equation Models: Tests of Significance and Descriptive Goodness-of-Fit Measures.

  2003cited by this paper
• The Asian Nitrogen Cycle Case Study

  2002cited by this paper
• MICROBIAL ENZYME SHIFTS EXPLAIN LITTER DECAY RESPONSES TO SIMULATED NITROGEN DEPOSITION

  2000cited by this paper
• Effects of afforestation on phosphorus dynamics and biological properties in a New Zealand grassland soil

  2000cited by this paper
• The use of fluorogenic substrates for measuring enzyme activity in peatlands

  1995cited by this paper
• Micro-plate colourimetric assay for Endo -acting cellulase, xylanase, chitinase, 1,3-β-glucanase and amylase extracted from forest soil horizons

  1992cited by this paper
• AN EXTRACTION METHOD FOR MEASURING SOIL MICROBIAL BIOMASS C

  1987cited by this paper
• Total Carbon, Organic Carbon, and Organic Matter

  1983cited by this paper
• A modified single solution method for the determination of phosphate in natural waters

  1962cited by this paper

• Global change reshapes glomalin‐mediated soil carbon sequestration by influencing plant inputs

  2026cites this paper
• N deposition affects litter decomposition in evergreen broad-leaf forests by reducing soil enzyme activities and altering the structure of microbial communities

  2025cites this paper
• Insights into the interlinkages between rhizosphere soil extracellular enzymes and microbiome assemblages across soil profiles in grasslands

  2025cites this paper
• Cadmium and rising tides: Amplified greenhouse gas emissions from mangrove sediment

  2025cites this paper
• Elevated CO2 and nitrogen addition enhance the symbiosis and functions of rhizosphere microorganisms under cadmium exposure.

  2024cites this paper
• Spring rest-grazing time affected soil organic carbon stability and storage in subalpine meadows of Carex

  2024cites this paper
• Elevated CO2 and nitrogen addition diminish the inhibitory effects of cadmium on leaf litter decomposition and nutrient release

  2023cites this paper
• Different effects of litter and root inputs on soil enzyme activities in terrestrial ecosystems

  2023cites this paper
• Correlation between Changes in Soil Properties and Microbial Diversity Driven by Different Management in Artificial Chinese Fir (Cunninghamia lanceolata (Lamb.) Hook.) Plantations

  2023cites this paper
• Nitrogen availability mediates soil organic carbon cycling in response to phosphorus supply: A global meta-analysis

  2023cites this paper
• Cadmium reduced methane emissions by stimulating methane oxidation in paddy soils.

  2023cites this paper
• Impacts of Elevated Atmospheric CO2 and N Fertilization on N2O Emissions and Dynamics of Associated Soil Labile C Components and Mineral N in a Maize Field in the North China Plain

  2022cites this paper
• Effects of anthropogenic nitrogen additions and elevated CO2 on microbial community, carbon and nitrogen content in a replicated wetland

  2022cites this paper
• Elevated [CO2] concentration and nitrogen addition affects responses of foliar phosphorus fractions in invasive species to increased phosphorus supply

  2021cites this paper
• Effects of elevated CO2 concentration and nitrogen addition on foliar phosphorus fractions of Mikania micranatha and Chromolaena odorata under low phosphorus availability.

  2021cites this paper
• Relationships between vegetation and soil seed banks along a center-to-edge gradient on a tropical coral island

  2020influential citation
• Elevated CO2 Affects the Soil Organic Carbon Fractions and Their Relation to Soil Microbial Properties in the Rhizosphere of Robinia pseudoacacia L. Seedlings in Cd-Contaminated Soils

  2020cites this paper
• Reponses of litter, organic and mineral soil enzyme kinetics to 6 years of canopy and understory nitrogen additions in a temperate forest.

  2020cites this paper
• Soil C, N and P cycling enzyme responses to nutrient limitation under elevated CO2

  2020cites this paper
• Effects of forest conversion on carbon-degrading enzyme activities in subtropical China.

  2019cites this paper