Grazing-induced spatial variability of soil bulk density and content of moisture, organic carbon and calcium carbonate in a semi-arid rangeland

Stavi, Ilan; Ungar, Eugene D.; Lavee, H.; Sarah, Pariente

doi:10.1016/j.catena.2008.07.007

Cited by 102 publications

(97 citation statements)

References 43 publications

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“…The direct and indirect impact of grazing on soil parameters, such as bulk density, soil moisture and carbon contents have been described and discussed in various studies (Stavi et al, 2008;Wu et al, 2010;Hafner et al, 2012). At low grazing intensities, concentrated movements of livestock in areas with changing micro-topography on a small spatial scale mostly affect soil properties, often in a very complex way (Trimble and Mendel, 1995;Stavi et al, 2012).…”

Section: Uncertainty Of Predictionmentioning

confidence: 99%

Organic and inorganic carbon in the topsoil of the Mongolian and Tibetan grasslands: pattern, control and implications

et al. 2012

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Abstract. Soil carbon (C) is the largest C pool in the terrestrial biosphere and includes both inorganic and organic components. Studying patterns and controls of soil C help us to understand and estimate potential responses of soil C to global change in the future. Here we analyzed topsoil data of 81 sites obtained from a regional survey across grasslands in the Inner Mongolia and on the Tibetan Plateau during 2006-2007, attempting to find the patterns and controls of soil inorganic carbon (SIC) and soil organic carbon (SOC). The averages of inorganic and organic carbon in the topsoil (0-20 cm) across the study region were 0.38 % and 3.63 %, ranging between 0.00-2.92 % and 0.32-26.17 % respectively. Both SIC and SOC in the Tibetan grasslands (0.51 % and 5.24 % respectively) were higher than those in the Inner Mongolian grasslands (0.21 % and 1.61 %). Regression tree analyses showed that the spatial pattern of SIC and SOC were controlled by different factors. Chemical and physical processes of soil formation drive the spatial pattern of SIC, while biotic processes drive the spatial pattern of SOC. SIC was controlled by soil acidification and other processes depending on soil pH. Vegetation type is the most important variable driving the spatial pattern of SOC. According to our models, given the acidification rate in Chinese grassland soils in the future is the same as that in Chinese cropland soils during the past two decades: 0.27 and 0.48 units per 20 yr in the Inner Mongolian grasslands and the Tibetan grasslands respectively, it will lead to a 30 % and 53 % decrease in SIC in the Inner Mongolian grasslands and the Tibetan grasslands respectively. However, negative relationship between soil pH and SOC suggests that acidification will inhibit decomposition of SOC, thus will not lead to a significant general loss of carbon from soils in these regions.

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Section: Uncertainty Of Predictionmentioning

confidence: 99%

Organic and inorganic carbon in the topsoil of the Mongolian and Tibetan grasslands: pattern, control and implications

et al. 2012

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“…This contradicts the same trend in infiltration capacity, which presumably suggests greater leaching capacity under the stubble grazing treatment than that under the stubble retention treatment. Yet, to some extent, the stubble grazing treatment effect on calcium carbonate is supported by Stavi et al (2008) who showed for the northern Negev rangelands that livestock trampling results in an increase in soil concentration of calcium carbonate. In this regard, it is noteworthy to mention that the soil concentration of calcium carbonate is relatively stable and would not be easily modified by short-term management practices (Stavi et al 2008).…”

Section: Stubble Management Effect On Soil Qualitymentioning

confidence: 97%

“…Yet, to some extent, the stubble grazing treatment effect on calcium carbonate is supported by Stavi et al (2008) who showed for the northern Negev rangelands that livestock trampling results in an increase in soil concentration of calcium carbonate. In this regard, it is noteworthy to mention that the soil concentration of calcium carbonate is relatively stable and would not be easily modified by short-term management practices (Stavi et al 2008). Nevertheless, it is expected that the almost two decades during which the study's enclosures have experienced the same grazing treatments would suffice in generating modifications of this soil feature.…”

Section: Stubble Management Effect On Soil Qualitymentioning

confidence: 97%

No adverse effect of moderate stubble grazing on soil quality and organic carbon pool in dryland wheat agro-ecosystems

Stavi

Barkai

Islam³

et al. 2015

Agron. Sustain. Dev.

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Stubble grazing by livestock in post-harvest wheat fields is a common practice. Current knowledge usually shows that grazing has negative effects on soil quality. Therefore, here, we studied the stubble grazing impact on soil quality and crop yields of continuous wheat croplands in the semiarid northern Negev of Israel. These croplands have experienced the same stubble residue management, meaning, moderate grazing or entire retention, for 18 consecutive years. Cropland soils were also compared with soils of natural lands. Vegetation and 0-10 cm depth soils were sampled in 2013. Results reveal that overall soil quality was generally similar between the two wheat treatments. Moreover, results show that soil under stubble grazing treatment has greater carbon pool index and carbon management index than soil under stubble retention treatment. These findings suggest that the disturbance of soil organic carbon pool is smaller for stubble grazing, contrary to current knowledge. We propose a conceptual model to explain such findings.

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“…Decline in vegetation and changes in hydro-physical properties of soil are the leading negative effects. Increase in the grazing pressure causes soil compaction in pasture areas leading to increase of bulk density, thus, decrease of permeability (Pei et al, 2008;Stavi et al, 2008;Du Toit et al, 2009;Cetiner et al, 2012). This situation causes erosion to increase in especially sloping pastures with weak vegetation (Schönbach et al, 2011;Wilkinson et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Düzce yöresinde münavebeli otlatmanın bazı toprak özellikleri üzerine etkisi

Özcan¹

2016

J FAC FOR ISTANBUL U

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Pastures, one of the four important vegetation types in the world, have great potential not only in terms of forage production for animals, but also in terms of biological diversity. Yet, the pressure of continuous and overgrazing on pastures in Turkey affects both vegetation and soil negatively. Overgrazing leads to soil compaction, thus, soil permeability is influenced in a negative way. It is possible to remove these negative influences via amendment methods or reorganizing grazing. In this study, it was researched how short duration rotational grazing influenced some soil properties in a pasture where uncontrolled heavy grazing for many years in Düzce. As a result of the study, soil properties affected by rotational grazing at most were permeability and bulk density. While the value of bulk density increased from 1.19 gr cm-3 to 1.30 gr cm-3 in the continuous grazing pastures, it decreased from 1.38 gr cm-3 to 1.26 gr cm-3 in the rotational grazing pastures. It was demonstrated in the study that organizing grazing systems in the pastures can improve soil permeability and bulk density to a great extent.

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Grazing-induced spatial variability of soil bulk density and content of moisture, organic carbon and calcium carbonate in a semi-arid rangeland

Cited by 102 publications

References 43 publications

Organic and inorganic carbon in the topsoil of the Mongolian and Tibetan grasslands: pattern, control and implications

Organic and inorganic carbon in the topsoil of the Mongolian and Tibetan grasslands: pattern, control and implications

No adverse effect of moderate stubble grazing on soil quality and organic carbon pool in dryland wheat agro-ecosystems

Düzce yöresinde münavebeli otlatmanın bazı toprak özellikleri üzerine etkisi

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