Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1002/ldr.2315 |
Impact of Community Conservation Management on Herbaceous Layer and Soil Nutrients in a Kenyan Semi-Arid Savannah | |
Mureithi, Stephen M.1,2; Verdoodt, Ann3; Njoka, Jesse T.1; Gachene, Charles K. K.1; Warinwa, Fiesta4; Van Ranst, Eric2 | |
通讯作者 | Mureithi, Stephen M. |
会议名称 | 1st Conference on Desertification and Land Degradation (DESERTLAND) |
会议日期 | JUN, 2013 |
会议地点 | Ghent, BELGIUM |
英文摘要 | The impact of community conservation management on a semi-arid savannah herbaceous vegetation and soil nutrient status was studied in the conservation and grazing zones of two community ranches in Laikipia County, Kenya. Land zoning was carried out in 1999 using participatory approaches to demarcate conservation areas excluded from livestock grazing, buffer areas for grazing and high-intensity use zones for both grazing and settlement. Collected data included cover, grass species composition, standing grass biomass and topsoil chemical characteristics using line transect and quadrant methods. The conservation zones had significantly higher herbaceous diversity, species richness and relative abundance of both annual and perennial grasses, basal cover and herbage and a lower percentage of bare ground compared with the continuously grazed zones. The conservation zones also had higher total organic carbon, organic nitrogen and exchangeable basic cations content, indicating improved soil nutrient status. The grazing zones exhibited loss of vegetation cover and reduction of forage production, with a decline in rangeland condition, whereas the conservation zones showed recovery and improvement of the rangeland condition. Long-term implementation of Natural resource management programme in community wildlife conservancies seems to drive the semi-arid savannahs to exist in two steady states and transitions under the influence of grazing. We recommend long-term monitoring of the impact of the community conservation model on the rangeland and timely incorporation of remedial measures such as shifting bomas (cattle corrals) across the grazing zones, aggressive rangeland rehabilitation of severely degraded areas through reseeding and random grass seed broadcast along stock routes. Copyright (c) 2014 John Wiley & Sons, Ltd. |
英文关键词 | conservation management herbaceous vegetation land zoning livestock-wildlife interface rangeland condition |
来源出版物 | LAND DEGRADATION & DEVELOPMENT |
ISSN | 1085-3278 |
EISSN | 1099-145X |
出版年 | 2016 |
卷号 | 27 |
期号 | 8 |
页码 | 1820-1830 |
出版者 | WILEY-BLACKWELL |
类型 | Article;Proceedings Paper |
语种 | 英语 |
国家 | Kenya;Belgium |
收录类别 | SCI-E ; CPCI-S |
WOS记录号 | WOS:000387375900006 |
WOS关键词 | AFRICAN SAVANNA ; LONG-TERM ; GRAZING ANIMALS ; SOUTH-AFRICA ; NEW-ZEALAND ; VEGETATION ; DEGRADATION ; RANGELAND ; ECOSYSTEM ; LIVESTOCK |
WOS类目 | Environmental Sciences ; Soil Science |
WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/304717 |
作者单位 | 1.Univ Nairobi, Dept Land Resource Management & Agr Technol, POB 29053, Nairobi 00625, Kenya; 2.Univ Ghent, Lab Soil Sci, Dept Geol & Soil Sci WE13, Krijgslaan 281-S8, B-9000 Ghent, Belgium; 3.Univ Ghent, Res Unit Soil Degradat & Conservat, Dept Soil Management BW12, Coupure Links 653, B-9000 Ghent, Belgium; 4.African Wildlife Fdn, Ngong Rd,Karen POB 310, Nairobi 00502, Kenya |
推荐引用方式 GB/T 7714 | Mureithi, Stephen M.,Verdoodt, Ann,Njoka, Jesse T.,et al. Impact of Community Conservation Management on Herbaceous Layer and Soil Nutrients in a Kenyan Semi-Arid Savannah[C]:WILEY-BLACKWELL,2016:1820-1830. |
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