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Rehabilitation of indigenous browse plant species following exclosure established on communal grazing lands in South Tigray, Ethiopia, and implication for conservation

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Ecological Processes 2019年第1期8卷 530-538页

作者： tesfay atsbha Solomon Wayu Nguse Gebretsadkan tesfay Gebremariam Tsgehiwet Giday Tigray Agricultural Research Institute Alamata Agriculture Research CenterP.O.Box56AlamataEthiopia

Background:Despite the wide use of indigenous browse plant species,there is almost no information on the rehabilitation of indigenous browse species following area exclosure(AE)established on communal grazing lands(CGL)in Southern *** objectives of this study were to assess the rehabilitation of browse plant species following AE establishment on CGL.A total of 61 and 59 plots of 10×10m2 size were laid down at 50-m intervals along parallel line transects at AE and GCL,*** collected on vegetation attributes were subjected to analysis of t test(unequal variances)using ***:The Shannon diversity index of the browse plant species was 1.25 and 0.81 in AE and CGL,respectively(P<0.001).The overall population structure of browse plant species in the AE shows a reverse J-shaped population curve and“good”regeneration status,which reveals that the future communities may be *** biomass and basal area of browse plant species were significantly higher in the AE than in CGL(P<0.001).After exclusion of grazing,AE was found to have positive effects on diversity and aboveground biomass of browse plant ***:The study gives an understanding of the diversity,the pattern of population and regeneration of the browse plant species,which may help in the management and conservation of the *** results indicate that grazing exclusion is an effective management strategy to restore browse plant *** concluded that the establishment of AE had a positive effect on the rehabilitation of browse plant species diversity and improved population structure and regeneration potentials of degraded grazing ***-term monitoring and evaluation systems will be required to gain an informed understanding of the roles played by area exclosures in the rehabilitation and conservation of browse palnt species diversity.

关键词： Browse Rehabilitation Restoration

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Exclosure land management for restoration of herbaceous species in degraded communal grazing lands in Southern Tigray

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Ecosystem Health and Sustainability 2020年第1期6卷 309-319,308页

作者： tesfay atsbha Solomon Wayu Nguse Gebretsadkan Tsgehiwet Giday tesfay Gebremariam Tigray Agricultural Research Institute Alamata Agriculture Research CenterP.O.BOX 56AlamataEthiopia

Herbaceous species contribute to the largest proportion of the *** the profound benefits obtained,anthropogenic disturbances are hindering its *** the other hand,to ensure the sustainability of herbaceous species,communities and governments have been putting efforts in managing herbaceous species through the establishment of area exclosure(AE).Thus,the main importance of this research paper is to provide information about the role of AE on the restoration of herbaceous *** objective of this study was to assess the effect of restoration on the herbaceous species following AE established on communal grazing land(CGL).A total of 124 and 73 quadrats of 1×1m^(2) size were laid down at 50 m intervals along parallel transects at AE and CGL,respectively,and data were analyzed by t-test unequal variances using *** displayed higher plant species richness and diversity than the CGL and showed a significant difference(p<0.001).Similarly,the AE had significantly(p<0.001)higher forage biomass than the *** general,herbaceous species diversity index and species richness were significantly(p<0.001)higher in the AE compared to the *** study concluded that effective AE has the potential to enhance the restoration of herbaceous species and hence forage productivity.

关键词： Grazing land land conservation palatable indigenous vegetation area exclosure

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