Effects of livestock grazing on key vegetation attributes of a remnant forest reserve: The case of Desa'a Forest in northern Ethiopia

Giday, Kidane; Humnessa, Bekele; Muys, Bart; Taheri, Fatemeh; Azadi, Hossein

doi:10.1016/j.gecco.2018.e00395

Cited by 27 publications

(22 citation statements)

References 13 publications

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“…Proximity to a settlement increases the probability of anthropogenic disturbance such as grazing and cutting, which are predominant in the forest (Giday et al 2018). Our results confirm that the resilience of the vegetation located further than 5 km from settlements was considerably increased.…”

Section: Drivers Of Forest Resilience and Resistancesupporting

confidence: 78%

“…reported by Verbesselt et al (2016) which might explain the severe and repetitive anthropogenic pressure the forest is facing (Aynekulu et al 2011). The growth stability, however, was continuously decreasing over the study period, which might be linked to continuous degradation in the forest that could be explained by the dieback of the dominant species, olive and juniper trees (Aynekulu et al 2011), browsing and lopping of various species (Giday et al 2018 drought occurrences that were linked to the declined resilience of the forest might also be a reasonable explanation for the decreased yield stability.…”

Section: Resilience and Resistance Status Of Desa'a Forestmentioning

confidence: 96%

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Discerning Effects of Climate Variability, Local Land Degradation and Tree Species Diversity on Remote Sensing Derived Resilience and Resistance of Dry Afromontane Forest 

Hishe

Oosterlynck²,

Giday

et al. 2020

Preprint

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Introduction: Anthropogenic disturbances are increasingly affecting the vitality of tropical dry forests. The future condition of this important biome will depend on its capability to resist, and recover from these disturbances. So far, the temporal stability of dryland forests is rarely studied, but could serve as a basis for forest management and restoration. Methodology: In a degraded dry Afromontane forest in northern Ethiopia, we explored remote sensing derived indicators of forest stability, using MODIS satellite derived NDVI time series from 2001 to 2018. Resilience, resistance and variability were measured using the anomalies (remainders) after time series decomposition into seasonality, trend and remainder components. Growth stability was calculated using the integral of the undecomposed NDVI data. These NDVI derived stability indicators were then related to environmental factors of climate, topography, soil, tree species diversity, and disturbance, obtained from a systematic grid of field inventory plots, using boosted regression trees in R. Resilience and resistance were adequately predicted by these factors with an R2 of 0.67 and 0.48, respectively, but the models for variability and growth stability were weaker. Precipitation of the wettest month, distance from settlements and slope were the most important factors associated with resilience, explaining 51% of the effect. Altitude, temperature seasonality and humus accumulation were the significant factors associated with the resistance of the forest, explaining 61% of the overall effect. A positive effect of tree diversity on resilience was also significant, except that the impact of species evenness declined above a threshold value of 0.70, indicating that perfect evenness reduced the resilience of the forest. Conclusion: A combination of climate, topographic variables and disturbance indicators controlled the stability of the dry forest. Tree diversity is an important component that should be considered in the management and restoration programs of such degraded forests. If local disturbances are alleviated the recovery time of dryland forests could be shortened, which is vital to maintain the ecosystem services these forests provide to local communities and global climate change.

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Section: Drivers Of Forest Resilience and Resistancesupporting

confidence: 78%

Section: Resilience and Resistance Status Of Desa'a Forestmentioning

confidence: 96%

Discerning Effects of Climate Variability, Local Land Degradation and Tree Species Diversity on Remote Sensing Derived Resilience and Resistance of Dry Afromontane Forest 

Hishe

Oosterlynck²,

Giday

et al. 2020

Preprint

Self Cite

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“…According to Giday, Humnessa, Muys, Taheri, and Azadi (2018), the maximum number of livestock that can be raised on Desa'a forestland cover was about 68,480.39 TLU/year in northern Ethiopia, which was higher than the forest carrying capacity value of the 2011-2018 and comparable with the value of 1986-2011 in this study. This variation might be due to decreasing trends of forestland cover in the eco-environments of this study.…”

Section: Carrying Capacity (Cc) Of Rangelandcontrasting

confidence: 52%

“…According to Coppock (1994), Borana pastoralists of southern Ethiopian rangeland has shifting owned livestock species from grazer (cattle and sheep) to the browser (camel and goat) because of changing eco-environmental condition of the area. Giday et al (2018) also reported the browse species feed availability from forest and woody vegetation cover becoming an immense contributor to livestock feed resources in dryland pastoral regions.…”

Section: Sustainability Of Grazing/browsing Of the Rangeland In The Study Areamentioning

confidence: 99%

Land Use/Cover Change analysis and its Implication on Livestock Feed Resource Availabilities in Southeastern Rangeland of Ethiopia

Habte¹,

Eshetu²,

Legesse³

et al. 2020

Preprint

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The objective of this study was to analyze the combined effects of climate and land use/cover changes on livestock feed resources and livestock species composition. The land use/cover data were generated from Landsat images of 1986, 1995, 2010 and 2018. The images were classified using a maximum likelihood classifier algorithm. The result from meteorological data and the land use/cover change were compared with household perception on livestock feed availability and livestock species composition. The result showed that the dominant land use/cover in the eco-region throughout the study period was bush/shrub cover followed by woody vegetation. This study revealed transition of land use/cover from grassland, woody and forest vegetation cover to bush/shrub and cropland in the study areas. The analysis of time series meteorological data showed significantly increasing patterns of temperature, and the highly variable nature of rainfall during 1986-2018. The pattern of livestock population throughout the analysis period exhibited a significantly increasing trend. The land use/cover, temperature and rainfall significantly affected livestock feed availability and quality. Over the last 32 years, potential grazing resources had been declined with a resultant increase in the proportion of bush/shrub feed resources available for livestock. The inter-annual variation of rainfall during the analysis period was 40.45%, which implies that the rangeland is in non-equilibrium dynamics. The rangelands carrying capacity was significantly decreased from 3.76 TLU/ha/year in 1986 to 1.74 TLU/ha/year in 2018. However, the stocking rate was increased from 1.8 TLU/ha/year in 1986 into 7.15 TLU/ha/year during 1986-2018. It is recommendable to choose camel and goat more likely than cattle and sheep raising with increasing temperature and decreasing pattern of rainfall that favour bush/shrub feed resources. Hence, available feed resources and the probability of choosing livestock species vary with eco-region and land use/cover that indicates the need for site-specific feed and rangeland management scheme.

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“…Improved accessibility in the future will have a positive impact on increasing the production of animal feed in CF, along with increasing the development of feed-in gardens and house yards, reducing the dependence on forests and supporting biodiversity conservation (Tamang et al 2019). Through adequate technological input support, it is expected that the cultivation of animal feed on CF land, gardens and yards will promote land conservation, erosion control and soil fertility (Hoogmoed et al 2012;Franzel et al 2014;Das et al 2016;Giday et al 2018;Ahammada et al 2019). Management of growing areas is needed to regulate the zonation balance of animal feed development with the demand for human food crops.…”

Section: Provision Of Animal Feedmentioning

confidence: 99%

Sustaining farmers livelihoods through community forestry in Sikka, East Nusa Tenggara, Indonesia

Njurumana¹,

Ginoga²,

Octavia³

2020

Biodiversitas

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Abstract. Njurumana GN, Ginoga KL, Octavia D. 2020. Sustaining farmers livelihoods through community forestry in Sikka, East Nusa Tenggara, Indonesia. Biodiversitas 21: 3786-3796. One of the goals of managing global forest ecosystems today is to synergize their socio-economic, ecological and community livelihood benefits. Each forest type has various socio-economic and ecological characteristics that influence its management strategies and the provision services to the community. In general, the socio-economic benefits of forests in supporting community livelihoods are well known, however, the information which is specifically relevant to tropical monsoon forests is still very limited. This research aims to fill this knowledge gap, by providing information about the socio-economic conditions and provision of services of tropical monsoon forests to people's livelihoods. The research was conducted through structured interviews, FGDs, and field observations, by an analysis unit in community forests in the Sikka district. The information obtained was analyzed through descriptively qualitative and quantitative methods. The results showed an imbalance between the socio-economic conditions of people who rely on the tropical monsoon forest for their livelihoods and the carrying capacity of fuelwood, food, and fodder supply. This imbalance is due to the weak synergy and organization of stakeholders in optimizing how the provision services of forests are used to support farmers' livelihoods. Farmers' dependence on the tropical forest services is still high, therefore the strengthening of farmers' institutions becomes a key factor that determines sustainable management of the forest and enhances the value of its benefits to the community.

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Effects of livestock grazing on key vegetation attributes of a remnant forest reserve: The case of Desa'a Forest in northern Ethiopia

Cited by 27 publications

References 13 publications

Discerning Effects of Climate Variability, Local Land Degradation and Tree Species Diversity on Remote Sensing Derived Resilience and Resistance of Dry Afromontane Forest

Discerning Effects of Climate Variability, Local Land Degradation and Tree Species Diversity on Remote Sensing Derived Resilience and Resistance of Dry Afromontane Forest

Land Use/Cover Change analysis and its Implication on Livestock Feed Resource Availabilities in Southeastern Rangeland of Ethiopia

Sustaining farmers livelihoods through community forestry in Sikka, East Nusa Tenggara, Indonesia

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Effects of livestock grazing on key vegetation attributes of a remnant forest reserve: The case of Desa'a Forest in northern Ethiopia

Cited by 27 publications

References 13 publications

Discerning Effects of Climate Variability, Local Land Degradation and Tree Species Diversity on Remote Sensing Derived Resilience and Resistance of Dry Afromontane Forest&nbsp;

Discerning Effects of Climate Variability, Local Land Degradation and Tree Species Diversity on Remote Sensing Derived Resilience and Resistance of Dry Afromontane Forest&nbsp;

Land Use/Cover Change analysis and its Implication on Livestock Feed Resource Availabilities in Southeastern Rangeland of Ethiopia

Sustaining farmers livelihoods through community forestry in Sikka, East Nusa Tenggara, Indonesia

Contact Info

Product

Resources

About

Discerning Effects of Climate Variability, Local Land Degradation and Tree Species Diversity on Remote Sensing Derived Resilience and Resistance of Dry Afromontane Forest

Discerning Effects of Climate Variability, Local Land Degradation and Tree Species Diversity on Remote Sensing Derived Resilience and Resistance of Dry Afromontane Forest