Carbon, Nitrogen, and Phosphorus in Terrestrial Pools: Where Are the Main Nutrients Located in the Grasslands of the Cuatro Ciénegas Basin?

García‐Oliva, Felipe; Tapia-Torres, Yunuen; Montiel-González, Cristina; Perroni, Yareni

doi:10.1007/978-3-319-95855-2_1

Cited by 1 publication

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References 32 publications

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“…The C:P ratio is an indicator of the utilization and release of P for soil microbes, and relatively low C:P ratios promote the availability of P via mineralization by bacterial species with different strategies of P acquisition [39]. In this study, the decrease of C:P ratio shows that the availability of P increased with grazing compared with that in the control, except in the G0.23 treatment, which is consistent with the increased demand for P in shoots.…”

Section: Effects Of Grazing On Stoichiometric Characteristics Of Soilmentioning

confidence: 99%

Grazing Affects the Ecological Stoichiometry of the Plant–Soil–Microbe System on the Hulunber Steppe, China

et al. 2019

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Grazing affects nutrient cycling processes in grasslands, but little is known by researchers about effects on the nutrient stoichiometry of plant–soil–microbe systems. In this study, the influence of grazing intensity (0, 0.23, 0.34, 0.46, 0.69, and 0.92 AU ha−1) on carbon (C), nitrogen (N) and phosphorus (P) and their stoichiometric ratios in plants, soil, and microbes was investigated in a Hulunber meadow steppe, Northeastern China. The C:N and C:P ratios of shoots decreased with grazing increased. Leaf N:P ratios <10 suggested that the plant communities under grazing were N-limited. Heavy grazing intensities increased the C:N and C:P ratios of microbial biomass, but grazing intensity had no significant effects on the stoichiometry of soil nutrients. The coupling relationship of C:N ratio in plant–soil–microbial systems was tightly significant compared to C:P ratio and N:P ratio according to the correlation results. The finding suggested grazing exacerbated the competition between plants and microorganisms for N and P nutrition by the stoichiometric changes (%) in each grazing level relative to the no grazing treatment. Therefore, for the sustainability of grasslands in Inner Mongolia, N inputs need to be increased and high grazing intensities reduced in meadow steppe ecosystems, and the grazing load should be controlled within G0.46.

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Section: Effects Of Grazing On Stoichiometric Characteristics Of Soilmentioning

confidence: 99%

Grazing Affects the Ecological Stoichiometry of the Plant–Soil–Microbe System on the Hulunber Steppe, China

et al. 2019

View full text Add to dashboard Cite

show abstract

Carbon, Nitrogen, and Phosphorus in Terrestrial Pools: Where Are the Main Nutrients Located in the Grasslands of the Cuatro Ciénegas Basin?

Cited by 1 publication

References 32 publications

Grazing Affects the Ecological Stoichiometry of the Plant–Soil–Microbe System on the Hulunber Steppe, China

Grazing Affects the Ecological Stoichiometry of the Plant–Soil–Microbe System on the Hulunber Steppe, China

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