A5101729176- Soil Carbon and Nitrogen Dynamics
- Peatlands and Wetlands Ecology
- Soil and Water Nutrient Dynamics
- Pasture and Agricultural Systems
- Microbial Community Ecology and Physiology
- Rangeland Management and Livestock Ecology
- Ecology and Vegetation Dynamics Studies
- Legume Nitrogen Fixing Symbiosis
- Mycorrhizal Fungi and Plant Interactions
- Quantum Dots Synthesis And Properties
- Bioenergy crop production and management
- Plant Water Relations and Carbon Dynamics
- Forest ecology and management
- Rangeland and Wildlife Management
- Forest Management and Policy
- Chalcogenide Semiconductor Thin Films
- Copper-based nanomaterials and applications
- Soil and Unsaturated Flow
- Climate change and permafrost
Lanzhou University
2012-2024
Understanding how N addition status (i.e., duration, rate, and form of addition) impacts carbon (C) cycling has great implications for C storage prediction grassland management. We examined 257 studies related to in grasslands obtained a dataset 1073 observations meta-analysis. significantly increased plant input (plant above-ground biomass +49.1%, below-ground +16.6%; litterfall +17.4%; dissolved organic +16.4%) across natural globally. For loss processes, enhanced litter decomposition by...
In grassland ecosystems, N and P fertilization often increase plant productivity, but there is no concensus if affects soil C fractions. We tested effects of N, N+P at 5, 10, 15 g m−2 yr−1 (N5, N10, N15, P5, P10, P15, N5P5, N10P10, N15P15) compared to unfertilized control on C, microbial biomass functional diversity the 0–20 cm 20–40 depth in an alpine meadow after 5 years continuous fertilization. Fertilization increased total aboveground community grass decreased legume forb All treatments...
Abstract Nitrogen (N) and phosphorus (P) additions reduced soil organic carbon (SOC) contents stocks in alpine meadows on the Tibetan Plateau. However, little is known about microbial mechanisms behind SOC decline. This study investigated effects of long‐term N P community composition decomposition (C mineralization ( C m ), mean resistant times for active pool (MRT a slow s ) meadows. Results showed that total was by 2–9% under additions, which decreased 3–10%, while increased 4–75%...
Abstract Nutrient additions can increase carbon (C) inputs to soil, but there is no consensus about the response of soil organic C (SOC) storage and sequestration. For Tibetan alpine meadows, little known effects mechanisms nitrogen (N) phosphorus (P) addition on SOC stocks. In this study, we applied N and/or P fertilization for 7 years analyzed changes in bulk density, pH, SOC, inorganic (SIC), δ 13 C, microbial biomass (MBC), as well stocks SIC, MBC a depth 40 cm. We found that C:N...
Abstract Nitrogen (N) and phosphorus (P) additions to grasslands increase aboveground plant biomass modify community composition, thereby affecting plant‐derived organic carbon (C) input soil C cycling storage. However, the effects of N P on (SOC) decomposition sequestration are not fully understood their underlying mechanisms poorly known. This study aimed explore SOC content decline in topsoil alpine meadows Tibetan Plateau after 9‐years field additions. Stoichiometric characteristics...
Abstract Fertilizers‐induced priming effects of soil organic matter (SOM) decomposition influences net carbon balance and nutrient release. We hypothesize that very strong limitation plant productivity microbial activities by nitrogen (N) phosphorus (P), common in Tibetan meadows, retard SOM turnover. Consequently, N and/or P fertilization will induce have implications for balance. Soils from a nine‐year experiment (N alone, NP together, control) alpine meadow were used to investigate effect...
Microorganisms drive many important soil processes and ecosystem functioning; however, the microbial community can respond to environmental change, which alter decomposition storage of organic carbon (SOC). We assessed taxonomic functional attributes linked SOC concentration based on a grassland experiment fertilized with nitrogen (N) phosphorus (P). There were divergent responses at both level fertilization, greater quantitative response in terms bacteria fungi than abundance degradation...
Core Ideas Litter addition increased C decomposition. properties were more important than abiotic soil in controlling N would increase decomposition of SOC with added litter and decrease accumulation by altering quality. In grassland ecosystems, nitrogen (N)‐induced changes plant community often affect organic carbon (SOC) accumulation. However, there is no consensus on the biological chemical mechanisms that underlie response to N‐addition. this study, we did a experiment study six dominant...
Using multiple classification approach to examine plant traits response grazing and fencing (as without access grazing) is rare. Here we used diversity, productivity species over a three-year period on the eastern part of Qing-Hai Tibetan Plateau. The results showed that most common fence was poorly noticeable. meadows compared those under long-term free are characterized by significantly higher total richness, but richness declined with sampling years gradually, regardless or fencing....
Abstract Haloxylon ammodendron is a typical tree species in arid region for windbreak and sand fixation. Understanding how stand structure (i.e., afforestation density, forest type, age) of H. impacts ecological benefits growth status has great implications desertification control area. We obtained dataset 446 observations from 79 studies related to plantations meta‐analysis. Stand age was the key factor affecting performances windbreak, canopy, soil properties while density more important...