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Global patterns of foliar nitrogen isotopes and their relationships with climate, mycorrhizal fungi, foliar nutrient concentrations, and nitrogen availability.
It is suggested that warm, dry ecosystems have the highest N availability, while plants with high N concentrations, on average, occupy sites with higher N availability than plants with low N concentrations.
The temperature sensitivity of litter decomposition will influence the rates of ecosystem carbon sequestration in a warmer world. A number of studies have shown that the temperature sensitivity of
The Nature and Longevity of Agricultural Impacts on Soil Carbon and Nutrients: A Review
Since the domestication of plant and animal species around 10,000 years ago, cultivation and animal husbandry have been major components of global change. Agricultural activities such as tillage,
Conversion from agriculture to grassland builds soil organic matter on decadal timescales.
A model that investigates the mechanisms of SOM formation suggests that rapid formation of stable carbon resulted from biochemically resistant microbial products and plant material, although much of the carbon stored is stable.
Widespread coupling between the rate and temperature sensitivity of organic matter decay
Soils comprise the largest terrestrial carbon store on the planet. Soil respiration measurements suggest that the more biogeochemically recalcitrant the soil organic matter, the greater the
Comparison of labile soil organic matter fractionation techniques
Labile soil organic carbon (SOC L ), soil organic carbon with a relatively short turnover time, is an important source of energy for the belowground portion of ecosystems and is sensitive to land
Temporal ecology in the Anthropocene.
It is argued that accelerating climate change - the effective manipulation of time by humans - has generated a current need to build an equivalent framework for temporal ecology, and how a renewed, interdisciplinary focus on time would coalesce related concepts, help develop new theories and methods and guide further data collection.
Linking abundances of the dung fungus Sporormiella to the density of bison: implications for assessing grazing by megaherbivores in palaeorecords
The use of Sporormiella is refined as a proxy for local megaherbivore presence, especially in grassland systems to help elucidate the past drivers of grassland dynamics, including the possible role of bison in mediating grass–forb interactions during the variable moisture regimes of the last 12,000 years.
Reconstructing terrestrial nutrient cycling using stable nitrogen isotopes in wood
Although recent anthropogenic effects on the global nitrogen (N) cycle have been significant, the consequences of increased anthropogenic N on terrestrial ecosystems are unclear. Studies of the