scholarly journals Soil macrofauna abundance, biomass and selected soil properties in the home garden and coffee-based agroforestry systems at Wondo Genet, Ethiopia

Author(s):  
Asaye Asfaw ◽  
Solomon Zewudie
2021 ◽  
Author(s):  
Asaye Asfaw ◽  
Solomon Zewudie

Abstract BackgroundIn Ethiopia, the majority of farmers have limited access to inorganic fertilizers, but agricultural development is largely limited by economic constraints. Agroforestry practices (AFPs) are the typical solutions for such kind of agricultural systems. AFPs play critical roles in the improvement of abundance and biomass of soil invertebrates, which are necessary for long-term improvement of soil properties. The overall objective of the present study was to investigate the spatial and temporal dynamics in macro fauna abundance and biomass in home garden and coffee- based agroforestry systems and to relate it with the dynamics in a range of soil physico-chemical parameters.Result The two AF systems did differ in plant species richness and diversity of life forms. For both sampling seasons, higher number of macrofauna was collected from home garden AF than Coffee-based AF plot. Total macrofaunal biomass between the wet and dry season was significant (p <0.05) for samples from home garden AF plot. Depth-wise pattern in macrofauna abundance and biomass showed distinct seasonal variation in the two-agroforestry systems. For both AF plots, marked and significant (p<0.001) seasonal differences were observed in relation to soil moisture, temperature, and pH. On the other hand, dry season samples from home garden AF plot had significantly (p<0.001) higher moisture content and soil pH than coffee-based AF plot.Conclusion The abundance and biomass of soil macrofauna including soil properties were improved by AFs. Thus, the results of this study encourage farmers and policy makers about land administration to implement AFs to ensure sustainability of soil fertility for sustainable production and productivity.


Pedobiologia ◽  
2021 ◽  
pp. 150770
Author(s):  
G.X. Rousseau ◽  
O. Deheuvels ◽  
D. Celentano ◽  
I.R. Arias ◽  
L.M. Hernández-García ◽  
...  

2019 ◽  
Vol 17 (3) ◽  
pp. 105
Author(s):  
Leónides Castellanos González ◽  
Ana Francisca González Pedraza ◽  
Alfonso Eugenio Capacho Mogollón

El proyecto Plantar (Desarrollo estratégico agroecológico con uso de TIC para el fortalecimiento de cultivos promisorios en el Departamento de Norte de Santander) se desarrolló desde en enero de 2018 y a junio de 2019 en los municipios Arboledas, Convención, La Playa, La Esperanza, Ocaña y Mutiscua.  El objetivo del trabajo fue evaluar la Influencia de 18 sistemas agroforestales del Proyecto Plantar sobre la macrofauna del suelo después de implementados los mismos en los seis municipios. Se compararon las variables de biodiversidad de la macrofauna en dos muestreos (abundancia, Índice de riqueza específica, índice de diversidad de especies de Margalef, índice de equidad de abundancia de Shannon-Wiener e índice de dominancia de Simpson), uno antes de sembrar los cultivos y otro al año de establecidos.  Se realizaron análisis descriptivos de las variables estudiadas para las variables de modelos agroecológico. El establecimiento de los cultivos en los sistemas agroforestales tuvo impactos negativos y positivos sobre la macrofauna del suelo, al parecer debido a la heterogeneidad de la cobertura vegetal y del uso de suelo de las parcelas que aportaron los agricultores al proyecto. Al analizar la abundancia de la macrofauna se verifica que esta disminuye en todos los municipios, sin embargo, un análisis más detenido de otras variables como la riqueza y diversidad de especies, la equidad y la dominancia dentro de los modelos y grupos biológicos aportan resultados más favorables que cuando se analiza solamente de la abundancia. Palabras clave: Biodiversidad, abundancia, equidad, dominancia, modelos agroecológicos. 


2020 ◽  
Vol 21 (5) ◽  
Author(s):  
Titut Yulistyarini ◽  
Abban Putri Fiqa ◽  
Sugeng Budiharta ◽  
Ridesti Rindyastuti

Abstract. Yulistyarini T, Fiqa AP, Budiharta S, Rindyastuti R. 2020. Distribution of Gyrinops versteegii in varying vegetation structures, soil properties, and microclimates in western part of Flores Island, Indonesia. Biodiversitas 21: 1800-1808. Gyrinops versteegii is one of the agarwood-producing tropical plants that is distributed in the Lesser Sunda Islands to Sulawesi, Moluccas (Maluku), and Papua. The natural population of Gyrinops versteegii (Gilg.) Domke is widely exploited, making it being listed in CITES Appendix II. Despite largely exploited, information regarding the distribution of G. versteegii to reveal the habitat characteristics of its natural population is limited. The aims of the research were (i) to investigate the habitat characteristics of the distribution of G. versteegii in term of vegetation community, as well as soil and microclimate variables in its natural habitat in western part of Flores Island, and (ii) to study the relationship between its occurrence and ecological factors. The research was conducted in one community forest and three natural forests in the districts of Manggarai and West Manggarai, Flores Island, East Nusa Tenggara Province. Data on vegetation, soil properties and microclimates were collected by establishing 73 observation plots across the four studied areas. Data were analyzed to reveal vegetation composition and structure where G. versteegii occurred, the dispersion pattern, and relationship between its occurrence and ecological factors. Our study revealed that G. versteegii populations at four studied areas in Flores Island were distributed in a broad range of habitat characteristics with varying vegetation compositions and structures, canopy covers as well as soil and microclimates variables. The local/metapopulations of G. versteegii in these areas can be dispersed in clumped or uniform pattern. Nonetheless, some ecological variables might be important for the abundance of this species including soil texture, soil pH, C organic and Soil Organic Matters (SOM). The results of this study suggest a promising opportunity for the conservation efforts of G. versteegii through the possibility of planting this species in various land management including planted in monoculture system, polyculture system (e.g. home garden and agroforestry) as well as reintroduced into species-rich natural forest.                                                                                                                                                                                                                                                                                                                               


Author(s):  
M. N. Danjuma ◽  
S. Mohammed ◽  
M. Z. Karkarna

The aim of this study is to assess agroforestry practices in Northwestern Nigeria with a view to bringing to light some salient features of the system for maximising benefits and improving livelihoods of smallholder farmers in the study area. A total of one hundred and sixty six smallholder farmers were sampled using random technique from five hundred and fifty farmers’ listed by the contact forum in the study area. Questionnaire was administered to the one hundred and sixty six smallholder farmers with a view to examining the level of farmers’ participation in agroforestry in six villages namely Kabobi and Garki in Katsina State, Bulangu and Abonabo in Jigawa State, Bobo in Zamfara State and Gulma in Kebbi State. Interview was also conducted with ten farmers in Bulangu, Kabobi and Gulma to provide explanations on the limitation to acceptance of agroforestry innovations in the study area. Data collected with the questionnaire was analysed using simple percentage and frequency in order to measure dispersion among sampled farmers. Data collected from the interview was coded, transcribed and presented in textual form in the paper. Result of the study revealed that seven agroforestry systems (alley cropping, boarder line planting, scattered planting, woodlot, apiculture, orchard and home garden) were practiced in the area. Orchard and home garden were not practiced in Kabobi, the northern most of the villages. It also indicated farmers’ level of participation for the seven identified technologies as follows: Alley cropping (25.63%), boarder line planting (16.25%), scattered trees on farmland (36.25%), woodlot (1.25%), orchard (1.88%), apiculture (8.75%) and home gardens (10.00%). The key factors limiting acceptance of innovations include: l) lack of tree seedling (25.00%), land tenure issues (17.50%), long tree gestation period of indigenous species (50.63%) and insect attack (06.88%). This study recommended that farmers should be educated more on agroforestry technologies through mass media programmes and ICT.


PLoS ONE ◽  
2021 ◽  
Vol 16 (5) ◽  
pp. e0252305
Author(s):  
Leta Hailu ◽  
Gizaw Tesfaye ◽  
Kalkidan Fikirie ◽  
Yalemtsehay Debebe

This study was conducted in Somodo Watershed to investigate the land-use practices and its effect on species diversity and selected soil properties. Field observation was carried out to identify existing land-use practices following a transect line. A total of 20 plots (10 × 10) m2 were sampled from plots exhibiting different land-use practices found in the watershed in order to evaluate species richness and diversity. Soil samples were also collected from each plot. The soil samples were analyzed following standard laboratory procedures. The result of the analysis showed that there was a significant difference (p<0.05) in species diversity and richness among different land-use practices. Coffea arabica was dominant in homestead gardens and natural forests while Grevillea robusta showed had maximum richness in plantations and farm forests in the Watershed. Furthermore, home garden agroforestry practice was significantly (p<0.05) affected soil pH compared to other land-use systems (cultivated land, natural forest, and plantation forest. While Organic carbon (OC), Total nitrogen (TN), and Carbon to Nitrogen ratio (C: N) did not show significance difference among land-use systems in the watershed. The study has concluded that different land-use practices had a positive impact on sustaining species diversity, richness, and improve soil properties. Therefore, the study suggests that improving and expanding home garden agroforestry practices in the area are indispensable for environmental protection and soil fertility enhancement.


2018 ◽  
Vol 53 (12) ◽  
pp. 1383-1391 ◽  
Author(s):  
Leonardo Rodríguez Suárez ◽  
Yuli Tatiana Paladines Josa ◽  
Erika Judith Astudillo Samboni ◽  
Karla Dayana Lopez Cifuentes ◽  
Ervin Humprey Durán Bautista ◽  
...  

Abstract: The objective of this work was to evaluate the soil macrofauna and the bioindicator taxonomic groups associated with different land uses in the Colombian Amazon. Twelve agroforestry arrangements were studied and compared with to the native forest and pasture. For each land use, six monoliths were randomly selected and divided into four layers (litter, and 0-10, 10-20, and 20-30 cm soil depths). The variables considered in the analysis of land use effects were: individuals per square meter, order richness, Shannon’s diversity index, and Pielou’s evenness index. The greatest values for soil macrofauna density and diversity occurred in the forest, in contrast with the pasture. The principal component analysis distinguished land use according to macrofauna diversity, separating the native forest from the other land uses. The cluster analysis indicated the potential of some agroforestry systems to conserve the values of soil macrofauna density and diversity similar to those of the forest. According to the analysis of indicator value, five taxonomic groups (Diplura, Pseudoscorpionida, Araneae, Chilopoda, and Gastropoda), identified as bioindicators, are associated with preserved sites because of the sensitivity of their populations.


2009 ◽  
Vol 44 (8) ◽  
pp. 1056-1062 ◽  
Author(s):  
Esperanza Huerta ◽  
Christian Kampichler ◽  
Violette Geissen ◽  
Susana Ochoa-Gaona ◽  
Ben de Jong ◽  
...  

The objective of this work was to construct a simple index based on the presence/absence of different groups of soil macrofauna to determine the ecological quality of soils. The index was tested with data from 20 sites in South and Central Tabasco, Mexico, and a positive relation between the model and the field observations was detected. The index showed that diverse agroforestry systems had the highest soil quality index (1.00), and monocrops without trees, such as pineapple, showed the lowest soil quality index (0.08). Further research is required to improve this model for natural systems that have very low earthworm biomass (<10 g m-2) and a high number of earthworm species (5-7), as it is in the tropical rain forest, whose soil quality index was medium (0.5). The application of this index will require an illustrated guide for its users. Further studies are required in order to test the use of this index by farmers.


Sign in / Sign up

Export Citation Format

Share Document