Traditional knowledge, use and conservation of plants by the communities of Tharaka-Nithi County, Kenya

doi:10.1016/j.pld.2020.12.004

Plant Diversity ›› 2020, Vol. 42 ›› Issue (06): 479-487.DOI: 10.1016/j.pld.2020.12.004

• Short communication • 上一篇下一篇

Traditional knowledge, use and conservation of plants by the communities of Tharaka-Nithi County, Kenya

Vivian Kathambi^a,b,c,d, Fredrick Munyao Mutie^a,b,c, Peninah Cheptoo Rono^a,b,c, Neng Wei^a,b,c, Jacinta Ndunge Munyao^a,b,c, Peris Kamau^d, Robert Wahiti Gituru^b,e, Guang-Wan Hu^a,b, Qing-Feng Wang^a,b

a CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China;
b Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, China;
c University of Chinese Academy of Sciences, Beijing, 100049, China;
d East African Herbarium, National Museums of Kenya, P. O. Box 451660-0100, Nairobi, Kenya;
e Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya

收稿日期:2020-05-13 修回日期:2020-12-10 出版日期:2020-12-25 发布日期:2021-03-03
通讯作者: Guang-Wan Hu
基金资助:
We acknowledge the support of the foresters, rangers, area chiefs, sub-chiefs and residents of Tharaka-Nithi county accorded to this study. The Kenya Forest Service for the fieldwork permits and the scientist Mr. Ken Wambua of National Museums of Kenya for help with specimen identification. Dr. Emily Wabuyele who gave helpful insights in the development of this manuscript. This research was supported by grants of the National Natural Science Foundation of China (31970211) and from the Sino-Africa Joint Research Centre, CAS (SAJC201614).

Traditional knowledge, use and conservation of plants by the communities of Tharaka-Nithi County, Kenya

a CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China;
b Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan, 430074, China;
c University of Chinese Academy of Sciences, Beijing, 100049, China;
d East African Herbarium, National Museums of Kenya, P. O. Box 451660-0100, Nairobi, Kenya;
e Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya

Received:2020-05-13 Revised:2020-12-10 Online:2020-12-25 Published:2021-03-03
Contact: Guang-Wan Hu
Supported by:
We acknowledge the support of the foresters, rangers, area chiefs, sub-chiefs and residents of Tharaka-Nithi county accorded to this study. The Kenya Forest Service for the fieldwork permits and the scientist Mr. Ken Wambua of National Museums of Kenya for help with specimen identification. Dr. Emily Wabuyele who gave helpful insights in the development of this manuscript. This research was supported by grants of the National Natural Science Foundation of China (31970211) and from the Sino-Africa Joint Research Centre, CAS (SAJC201614).

摘要/Abstract

摘要： Rural communities in Kenya largely depend on plant resources for their livelihood. The utilization of these resources depends on the availability of plant resources and the level of knowledge of the residents. We conducted an ethnobotanical study in Tharaka-Nithi County in Kenya to determine the knowledge and utilization of various plant species by the local communities. The study was conducted in four major administrative regions from June 2018 to February 2019, involving interview schedules using semi-structured open-ended questionnaires and guided field collections with 48 informants. A total of 214 plant species distributed in 73 families and 169 genera with 616 Use Reports (URs) were documented. Fabaceae was the highest family cited by the informants (31 species) followed by Lamiaceae and Euphorbiaceae (each with 11 species). Trees (49%) and shrubs (32%) were the top life forms of the plants frequently utilized by the local residents. The general plant uses reported were medicinal, food, fodder, construction, fuel, pesticidal, religious, live fencing, and making crafts. Zanthoxylum gilletii, Prunus africana, and Solanum incanum were found to be highly valued by the local communities. Plant utilization as food and medicinal uses against snake-bite related problems had the highest Informant Consensus Factor (ICF). Only 29 (13.6%) of the species reported had their status assessed by the International Union for Conservation of Nature (IUCN). Conservation measures, alongside awareness creation in this region, are highly recommended for the species endemic to the region, highly depended on by the community, and those threatened according to IUCN standards.

关键词: Conservation, Indigenous knowledge, Medicinal plants, Nutrition, Tharaka-Nithi

Abstract: Rural communities in Kenya largely depend on plant resources for their livelihood. The utilization of these resources depends on the availability of plant resources and the level of knowledge of the residents. We conducted an ethnobotanical study in Tharaka-Nithi County in Kenya to determine the knowledge and utilization of various plant species by the local communities. The study was conducted in four major administrative regions from June 2018 to February 2019, involving interview schedules using semi-structured open-ended questionnaires and guided field collections with 48 informants. A total of 214 plant species distributed in 73 families and 169 genera with 616 Use Reports (URs) were documented. Fabaceae was the highest family cited by the informants (31 species) followed by Lamiaceae and Euphorbiaceae (each with 11 species). Trees (49%) and shrubs (32%) were the top life forms of the plants frequently utilized by the local residents. The general plant uses reported were medicinal, food, fodder, construction, fuel, pesticidal, religious, live fencing, and making crafts. Zanthoxylum gilletii, Prunus africana, and Solanum incanum were found to be highly valued by the local communities. Plant utilization as food and medicinal uses against snake-bite related problems had the highest Informant Consensus Factor (ICF). Only 29 (13.6%) of the species reported had their status assessed by the International Union for Conservation of Nature (IUCN). Conservation measures, alongside awareness creation in this region, are highly recommended for the species endemic to the region, highly depended on by the community, and those threatened according to IUCN standards.

Key words: Conservation, Indigenous knowledge, Medicinal plants, Nutrition, Tharaka-Nithi

Vivian Kathambi, Fredrick Munyao Mutie, Peninah Cheptoo Rono, Neng Wei, Jacinta Ndunge Munyao, Peris Kamau, Robert Wahiti Gituru, Guang-Wan Hu, Qing-Feng Wang. Traditional knowledge, use and conservation of plants by the communities of Tharaka-Nithi County, Kenya[J]. Plant Diversity, 2020, 42(06): 479-487.

图/表 5

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微生境因子 Micro-habitat factors	最大值 Maximum value	最小值 Minimum value	平均值 Mean	标准差 Standard deviation
冠层开度 Canopy openness (%)	35.31	2.58	9.09	3.86
海拔 Elevation (m)	572.28	321.89	441.87	53.9
坡度 Slope (°)	82.65	4.00	35.08	11.98
坡向 Aspect (°)	318.92	30.00	185.93	54.86
草本覆盖度 Herbaceous coverage (%)	100.00	0.00	20.76	24.94
全氮 Total nitrogen (g/kg)	10.04	0.95	3.15	1.27
全磷 Total phosphorus (g/kg)	0.79	0.02	0.26	0.13
pH值 pH value	5.26	3.50	4.14	0.25

微生境因子 Micro-habitat factors	最大值 Maximum value	最小值 Minimum value	平均值 Mean	标准差 Standard deviation
冠层开度 Canopy openness (%)	35.31	2.58	9.09	3.86
海拔 Elevation (m)	572.28	321.89	441.87	53.9
坡度 Slope (°)	82.65	4.00	35.08	11.98
坡向 Aspect (°)	318.92	30.00	185.93	54.86
草本覆盖度 Herbaceous coverage (%)	100.00	0.00	20.76	24.94
全氮 Total nitrogen (g/kg)	10.04	0.95	3.15	1.27
全磷 Total phosphorus (g/kg)	0.79	0.02	0.26	0.13
pH值 pH value	5.26	3.50	4.14	0.25

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Traditional knowledge, use and conservation of plants by the communities of Tharaka-Nithi County, Kenya

Traditional knowledge, use and conservation of plants by the communities of Tharaka-Nithi County, Kenya

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