2017
DOI: 10.1186/s13717-017-0101-9
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Exclosures restored the density and root colonization of arbuscular mycorrhizal fungi in Tigray, Northern Ethiopia

Abstract: Introduction: Exclusion of grazing animals and tree plantations were among the methods used for the restoration of degraded lands in tropical semiarid areas. Exclosures can foster secondary forest succession by improving soil conditions and modifying microclimate for understory growth. This paper compared the arbuscular mycorrhizal fungi (AMF) spore density, root colonization of woody plants and soil chemical properties under exclosure with increasing age, and grazing land at different slope positions. Methods… Show more

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Cited by 32 publications
(22 citation statements)
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References 55 publications
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“…The variation could be due to displacement of spores by erosion from the upper to down slope position. This is in agreement to Birhane et al [23] who found significantly higher spore density at the foot than the middle and upper slope positions. Large variations in spore density between slope positions could also be due to the properties of the soils, host relations, and the differential survival strategies of AMF [22].…”
Section: Effect Of Slope Position On Total Amf Spore Densitysupporting
confidence: 93%
See 1 more Smart Citation
“…The variation could be due to displacement of spores by erosion from the upper to down slope position. This is in agreement to Birhane et al [23] who found significantly higher spore density at the foot than the middle and upper slope positions. Large variations in spore density between slope positions could also be due to the properties of the soils, host relations, and the differential survival strategies of AMF [22].…”
Section: Effect Of Slope Position On Total Amf Spore Densitysupporting
confidence: 93%
“…It was also reported that livestock and human disturbances decreased AMF spore density, root colonization, and nutrient availability [22]. However, establishment of exclosures on degraded communal grazing lands significantly improved spore density and root colonization [23]. Nutrient stocks and concentrations of soil organic matter (SOM), total nitrogen (TN), and available phosphorus (AP) were found higher in areas with high AMF [21].…”
Section: Introductionmentioning
confidence: 99%
“…Spore density was positively and significantly correlated with root colonization, as has been reported by others [48,[69][70][71]. However, some researchers indicated no correlation between spore density and root colonization [15,49].…”
Section: Correlation Of Amf Spore Density and Root Colonization With supporting
confidence: 68%
“…Zhao et al [47] found that spore density ranged from 50 to 1908 in 100 g −1 dry soil across three forest types (i.e., primary, secondary and limestone forest) in the tropical ecoregions of SW China. Similarly, Birhane et al [4] found up to 69 spores 100 g −1 dry soil in dry deciduous wood lands, while Birhane et al [48] reported up to 2980 spores per 100 g of dry soil in a dry Afromontane forest. Moreover, Dobo et al [49] found spore densities ranging from 6 to 1010 from different plant species in three land-use types in southern Ethiopia.…”
Section: Variablesmentioning
confidence: 91%
“…The ecological implications deriving from the implementation of fences have been described in a number of case studies from different regions of the world. The benefits consist in enhanced regeneration of natural vegetation, reduction of runoff and erosion, land stabilization, increase in water availability and improvement in soil physical and chemical properties [43][44][45][46][47][48]. Prolonged exclusion of livestock grazing produces over time a significant increase in aboveground and belowground biomass and species richness [49,50].…”
Section: Factors Influencing Planted Tree Diversitymentioning
confidence: 99%