Human societies depend on an Earth system that operates within a constrained range of
nutrient availability, yet the recent trajectory of terrestrial nitrogen (N) availability is uncertain …

近年来, 由于植物氮同位素组成(δ15N) 记载了气候环境变化的信息, 因而被广泛应用于全球变化
研究中, 成为古气候环境再造和了解现代气候环境变化信息的有力工具. 然而 …

Determining the abundance of N isotope (δ15N) in natural environments is a simple but
powerful method for providing integrated information on the N cycling dynamics and status …

A comprehensive assessment of soil organic matter (SOM) dynamics in semi-arid
agrosystems implementing soil and water conservation (SWC) measures is still lacking …

Soil carbon, nitrogen, and phosphorus cycles are strongly interlinked and controlled through
biological processes, and the phosphorus cycle is further controlled through geochemical …

We investigated the magnitude and drivers of spatial variability in soil and plant δ15N across
the landscape in a topographically complex semiarid ecosystem. We hypothesized that …

Scientifically underpinning geographic origin claims will improve consumer trust in food
labels. Stable isotope ratio analysis (SIRA) is an analytical technique that supports origin …

Isotopic composition of leaf carbon (δ13C) and nitrogen (δ15N) is determined by biotic and
abiotic factors. In order to determine the influence of leaf habit and site on leaf δ13C and …

Subtropical woodlands dominated by N‐fixing tree legumes have largely replaced
grasslands in the Rio Grande Plains, southwestern United States, during the past century …

Nitrogen isotope signatures (δ 15 N) provide powerful measures of the trophic positions of
individuals, populations and communities. Obtaining reliable consumer δ 15 N values …