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Testing the efficacy of artificial grasslands for restoration and revegetation of the Qinghai-Tibetan Plateau biome

China Dawu and Wosai in the Guoluo Tibetan Autonomous Prefecture in southeastern Qinghai Province

Researchers empirically tested the potential of artificial grassland creation to restore and revegetate degraded grassland on the Qinghai-Tibetan Plateau. A four-year field test found that the intervention had a positive impact on soil quality, biomass cover, and other relevant metrics.

Nature-based Intervention:

In an effort to better understand possible solutions to the challenge of grassland degradation, researchers at the Southwest University for Nationalities and the Chinese Academy of Science empirically tested the merit of establishing artificial grasslands for restoring and revegetating degraded grassland, especially in heavily degraded areas. An area within the Plateau was designated for grassland planting. First, the grassland was ploughed and harrowed prior to the seeding of perennial grasses by hand at a soil depth of two to three centimetres. Nitrogen was applied for the purpose of fertilisation and finally, the plots were harrowed and tamped to prevent soil erosion. Livestock was excluded from the reseeded plots in the first year of the project, but were allowed re-entry thereafter.

Overview of context and outcomes:

The Qinghai-Tibetan Plateau is a globally important terrestrial biome of which two-thirds is covered by grassland. Unfortunately, anthropogenic pressures including seasonal overgrazing, poorly managed land reclamation, road construction, and sand and gold mining have caused severe land degradation. These degradation challenges are further exacerbated by climate change induced impacts including increased warming, drying, presence of pests, wind erosion, and freeze-thaw. After four years of restoration, the researchers examined the results to find that the effort had positive impacts on soil quality, biomass recovery, and several other identified metrics relevant for measuring the extent of restoration and revegetation.

Case effectiveness on

Climate change

Mitigation: Not reported
Adaptation: Positive

Vegetation richness, diversity, and below-ground biomass were found to be significantly higher in the treated area as compared to the control area. Above ground plant cover, mean plant height, and above ground biomass were also found to have increased after four years of restoration. The artificial grassland was found to have significantly increased in soil bulk density, pH value, soil nutrients, available nitrogen and phosphorous, microbial biomass, and soil enzyme activity. These results indicate the potential of artificial grassland to counter the harmful effects of climate change on the ecosystem. The documented increase in observed soil moisture could likely contribute to increasing water security in the area.

Ecosystem health

Ecological effect: Positive

Various metrics for plant species richness showed enhancement after four years of restoration.

Socioeconomic outcomes

While not reported, the restoration likely increased fodder availability and quality for local peoples.


The project is governed and implemented by the team of researchers and the central and provincial governments.


This intervention and the study of it were funded by the National Natural Science Foundation of China.

Monitoring and evaluation

Extensive monitoring of the restored sites took place, with researchers collecting data on a vast amount of core metrics.

Trade-offs and limitations

No information yet available on tradeoffs.

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Tibetan grassland and mountains
Photo © Peter Burdon

Intervention type

  • Restoration

Ecosystem type

  • Montane/Alpine

Climate change impacts addressed

  • Biomass cover loss
  • Reduced water availability
  • Reduced soil quality


  • Research institutions

Societal challenges

  • Biodiversity conservation
  • Climate change adaptation
  • Food security
  • Water security


  • Food security: Positive
  • Water security: Positive
  • Health: Not reported
  • Local economics: Not reported
  • Livelihoods/goods/basic needs: Not reported
  • Energy security: Not reported
  • Disaster risk reduction: Not reported
  • Rights/empowerment/equality: Not reported
  • Conflict and security: Positive
  • No. developmental outcomes reported: 4


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Literature info

  • Peer reviewed
Case methodology reported