Long‐term active restoration of extremely degraded alpine grassland accelerated turnover and increased stability of soil carbon

Bai, Yanfu; Ma, Lu‐Fang; Degen, A. Allan; Rafiq, Muhammad; Kuzyakov, Yakov; Zhao, Jingxue; Zhang, Rui; Zhang, Tao; Wang, Wenyin; Li, Yong; Long, Ruijun; Shang, Zhanhuan

doi:10.1111/gcb.15361

Cited by 43 publications

(30 citation statements)

References 85 publications

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“…There is not possible carry-over error in the The cheapest option for restoring the levels of carbon in the soil is via restoration with vegetation. This strategy can be applied in remote areas which are not subjected to intensive agricultural practices [57]. Even on farm land, the use of cover crops is considered as a valuable resource, although reduced tillage is not widely applied in the agro-industry [58].…”

Section: Ph Phosphorus and Carbon Speciationmentioning

confidence: 99%

Impact of sulphuric, hydrochloric, nitric, and lactic acids in the preparation of a blend of agro-industrial digestate and wood ash to produce a novel fertiliser

Abelenda

Semple

Lag-Brotons

et al. 2021

Journal of Environmental Chemical Engineering

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Section: Ph Phosphorus and Carbon Speciationmentioning

confidence: 99%

Impact of sulphuric, hydrochloric, nitric, and lactic acids in the preparation of a blend of agro-industrial digestate and wood ash to produce a novel fertiliser

Abelenda

Semple

Lag-Brotons

et al. 2021

Journal of Environmental Chemical Engineering

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“…The data show that organic carbon accumulation is favoured under MG conditions. The reduction of Corg in the upper layer of Kastonozems at HG is also possible due to its mineralisation at elevated soil temperatures and a decrease in vegetation cover (Bai et al, 2020).…”

Section: Impact Of Grazing On Physicochemical Propertiesmentioning

confidence: 99%

Influence of grazing on the structure and biological activity of dry steppe soils of the southern Russian Plain

et al. 2021

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A comparative analysis of physicochemical and biological properties of Kastanozems and Solonetzes, the two most common soil types in the Caspian region of the post-Soviet territory was carried out. The carbonate, salt, Corg, mineral N (NH 4 + and NO 3 À ) contents, microbial biomass (measured by ds-DNA and phospholipids), and activity of 17 hydrolases involved in the C, N, P, and S cycles were measured along the grazing attenuation gradient near a typical sheep farm with year-round grazing. Heavy grazing increases the number of Solonetz areas, they occupy up to 70% of the soil cover. Further away from the farm the areas decrease, and Kastanozems dominate there instead.Both in Kastanozems and Solonetzes, heavy grazing leads to soil salinisation, accumulation of carbonates and nitrates, decrease in ammonia and Corg content, microbial biomass, and enzymatic activity. At moderate grazing, a significant increase in microbial biomass and enzymatic activity throughout the soil profile, particularly in the 0-10 cm layer was found; at light grazing, it was observed mainly in deeper soil layers, not in the upper 0-10 cm. The microbial biomass and enzymatic activity of soils did not directly follow grazing load and was maximal at moderate grazing, where negative effect of reducing phytomass is compensated by large inputs of animal excreta, stimulating development of soil microbial community. Compared to Kastanozems, Solonetzes were more resistant to pasture load, and under heavy grazing, their properties changed to a lesser extent.

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“…Due to the aggravation of alpine grassland degradation, not only degradation and restoration of alpine grassland have become a research hotspot but also the demand for ecological restoration engineering with universality, practicability, and operability is becoming more and more urgent Bai et al, 2020;He et al, 2020a,b). In the process of degradation, huge changes have taken place in the vegetation coverage, biomass and biodiversity (Peng et al, 2012;Tang et al, 2015), soil physical and chemical properties (Ma X. et al, 2020;Wen et al, 2020), soil microbial biomass, and enzymes of alpine grassland (Zhang et al, 2017;Zhou et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

A Meta-Analysis on Degraded Alpine Grassland Mediated by Climate Factors: Enlightenment for Ecological Restoration

Wan

et al. 2022

Front. Plant Sci.

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Alpine grassland is the main ecosystem on the Qinghai-Tibet Plateau (QTP). Degradation and restoration of alpine grassland are related to ecosystem function and production, livelihood, and wellbeing of local people. Although a large number of studies research degraded alpine grassland, there are debates about degradation patterns of alpine grassland in different areas and widely applicable ecological restoration schemes due to the huge area of the QTP. In this study, we used the meta-analysis method to synthesize 80 individual published studies which were conducted to examine aboveground and underground characteristics in non-degradation (ND), light degradation (LD), moderate degradation (MD), heavy degradation (HD), and extreme degradation (ED) of alpine grassland on the QTP. Results showed that aboveground biomass (AGB), belowground biomass (BGB), Shannon-Wiener index (H′), soil moisture (SM), soil organic carbon (SOC), soil total nitrogen (TN), and available nitrogen (AN) gradually decreased along the degradation gradient, whereas soil bulk density (BD) and soil pH gradually increased. In spite of a tendency to soil desertification, losses of other soil nutrients and reduction of enzymes, there was no linear relationship between the variations with degradation gradient. Moreover, the decreasing extent of TN was smaller in areas with higher precipitation and temperature, and the decreasing extent of AGB, SOC, and TN was larger in areas with a higher extent of corresponding variables in the stage of ND during alpine grassland degradation. These findings suggest that in areas with higher precipitation and temperature, reseeding and sward cleavage can be used for restoration on degraded alpine grassland. Fencing and fertilization can be used for alpine grassland restoration in areas with lower precipitation and temperature. Microbial enzymes should not be used to restore degraded alpine grassland on a large scale on the QTP without detailed investigation and analysis. Future studies should pay more attention to the effects of climate factors on degradation processes and specific ecological restoration strategies in different regions of the QTP.

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Long‐term active restoration of extremely degraded alpine grassland accelerated turnover and increased stability of soil carbon

Cited by 43 publications

References 85 publications

Impact of sulphuric, hydrochloric, nitric, and lactic acids in the preparation of a blend of agro-industrial digestate and wood ash to produce a novel fertiliser

Impact of sulphuric, hydrochloric, nitric, and lactic acids in the preparation of a blend of agro-industrial digestate and wood ash to produce a novel fertiliser

Influence of grazing on the structure and biological activity of dry steppe soils of the southern Russian Plain

A Meta-Analysis on Degraded Alpine Grassland Mediated by Climate Factors: Enlightenment for Ecological Restoration

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