Atmospheric nitrogen (N) deposition poses serious threats to plant and soil microbial communities in natural grasslands, which can have consequences on ecosystem functioning. However, the...

2020年4月1日 · Nutrient addition may shift the nutrient limitation type of plants, e.g. from nitrogen (N)-limited to phosphorus (P)-limited. As the nutrient supply is expected to continue to grow, it is important to understand the patterns of nutrient limitation and their effects on species composition.

2020年4月1日 · Nutrient addition may shift the nutrient limitation type of plants, e.g. from nitrogen (N)-limited to phosphorus (P)-limited. As the nutrient supply is expected to continue to grow, it is important to understand the patterns of nutrient limitation and their effects on species composition.

A simple diagram to illustrate how the N addition affect soil microbial biomass carbon (MBC) in unmown (a) and mown (b) plots of temperate grassland. “UM” indicates unmown treatment, “M”...

2023年5月5日 · Conceptual diagram of the influences of nitrogen addition and plant diversity on the architecture of plant–soil–microbe stoichiometric networks. Ovals indicate biogeochemical processes; arrows indicate associations between plant, soil, and soil microbe, and arrow colours indicate different nitrogen addition levels (blue: ambient conditions ...

2023年8月14日 · We studied the short-term effects of N addition and mowing on the species diversity and biomass of a typical grassland in Inner Mongolia using a split-plot design, with the whole plot representing the mowing treatment and the subplot representing the N addition rate.

2018年6月1日 · Recently, it has been shown that nitrogen (N) and phosphorus (P) additions lead to different effects on grassland diversity. While N additions decrease species richness, the effects of P additions are mainly neutral. This contribution focuses on the mechanisms behind this observed pattern.

Plant diversity decline under nutrient addition in local grassland communities is typically ascribed to the loss of rare species, species with particular traits ill-suited for high nutrient...

2018年12月13日 · We quantified local-scale changes in plant biodiversity in relationship to N addition using four metrics: species richness (SR), individual species abundance (IA), mean species abundance (MSA) and geometric mean abundance (GMA). For all metrics, greater amounts of annual N addition resulted in larger declines in plant diversity.

We designed a field experiment with five levels of N addition (0, 2, 10, 20, and 50 g N m−2 yr−1), two types of N addition frequencies (twice a year added in June/November and monthly...