What question did this study set out to answer?

Quantify a productivity-based stocking rate threshold to evaluate the sustainability of current grazing practices and assess climate change impacts on alpine grassland degradation.

October 12, 2023SHILAP Revista de lepidopterologíaOpen Access

An early warning signal for grassland degradation on the Qinghai-Tibetan Plateau

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Authors

QZQiuan ZhuHohai University HCHuai ChenChinese Academy of Sciences CPChanghui PengUniversité du Québec à Montréal

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Implication

Ecosystem modeling reveals sustainable stocking rate thresholds across alpine grasslands, indicating that capping grazing below critical limits enables climate-driven recovery.

Key Points

Quantify a productivity-based stocking rate threshold to evaluate the sustainability of current grazing practices and assess climate change impacts on alpine grassland degradation.
Simulated vegetation dynamics across the Qinghai-Tibetan Plateau using a process-based ecosystem model.
Calculated a productivity-based stocking rate threshold that triggers extreme degradation and modeled interactions with elevated CO2 and climatic shifts.
Current stocking rates remain below the degradation threshold in ~80% of grassland areas, but exceed 50% of the threshold across 55% of those lands.
Elevated CO2 and climatic changes offset grazing impacts across nearly 70% of grasslands, restricted entirely to areas operating below the stocking threshold.
Limiting stocking rates to 60% (range: 50% to 70%) of the threshold is projected to balance livestock demands with ecosystem conservation.

Cite This Study

Zhu et al. (2023) studied this question.

synapsesocial.com/papers/69dd1cea854f360ad6359a8f https://doi.org/10.1038/s41467-023-42099-4

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Implication

Ecosystem modeling reveals sustainable stocking rate thresholds across alpine grasslands, indicating that capping grazing below critical limits enables climate-driven recovery.

An early warning signal for grassland degradation on the Qinghai-Tibetan Plateau

Discussion

Member takes

Implication

Key Points

Cite This Study

An early warning signal for grassland degradation on the Qinghai-Tibetan Plateau

Discussion

Member takes

Implication

Key Points

Cite This Study

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