The effects of grazing and fencing on grassland productivity and diversity in alpine grassland ecosystem in the Tibetan highland

Xiang, Mingxue; Wu, Junxi; Lha, Duo; Niu, Ben; Zhang, Xianzhou

doi:10.1016/j.gecco.2023.e02495

Cited by 1 publication

(1 citation statement)

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“…However, we observed that quantitative dissimilarity and the differences in total and functional groups cover percentages and plant richness between grazed and ungrazed sites, generally decreased with soil salinity. This can be comparable with the findings of Zhao et al (2016) and Xiang et al (2023), who found that some vegetation characteristics like plant biomass due to grazing exclusion decreased with studied abiotic stress, i.e. altitude.…”

Section: Effects Of Grazing and Region Interaction On Vegetationsupporting

confidence: 91%

Soil salinity drives vegetation changes by grazing exclusion in semiarid regions

Erfanzadeh,

Pirkhezri,

Rastegar

et al. 2024

Preprint

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Understanding the responses of vegetation to grazing exclusion along a salinity gradient is useful for the management of grasslands. We studied the responses of vegetation to grazing removal (ungrazed areas) in three semiarid regions with different soil salinity levels: non-saline, moderately saline and hyper-saline. The results showed that Bray-Curtis dissimilarity between grazed and ungrazed areas were highest in the non-saline region. In the hyper-saline region, the grazing removal had no significant effect on any of the diversity indices, while in the non-saline regions, vegetation changes were occurred by grazing exclusion at the highest magnitude. Generally, the magnitude of vegetation changes by livestock grazing exclusion was decreased along the soil salinity gradient. This research could help to understand how disturbances and stresses interactively influence grasslands dynamics in semiarid regions and to understand the effects of grazing on grassland dynamics and sustainability in deserts in the context of salinization.

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Section: Effects Of Grazing and Region Interaction On Vegetationsupporting

confidence: 91%