scholarly journals Influence of agroforestry systems of the Plantar Project on soil macrofauna

2019 ◽  
Vol 17 (3) ◽  
pp. 105
Author(s):  
Leónides Castellanos González ◽  
Ana Francisca González Pedraza ◽  
Alfonso Eugenio Capacho Mogollón
Keyword(s):  
Agroforestry Systems ◽  
Soil Macrofauna ◽  
Palabras Clave

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. 

Shade tree identity rather than diversity influences soil macrofauna in cacao-based agroforestry systems

Pedobiologia ◽  
2021 ◽  
pp. 150770
Author(s):  
G.X. Rousseau ◽  
O. Deheuvels ◽  
D. Celentano ◽  
I.R. Arias ◽  
L.M. Hernández-García ◽  
...  
Keyword(s):  
Agroforestry Systems ◽  
Soil Macrofauna ◽  
Shade Tree ◽  
Tree Identity

scholarly journals ¿Está cambiando el clima en Xalapa y Coatepec?

UVserva ◽  
2018 ◽  
Author(s):  
Paulo César Parada Molina
Keyword(s):  
Climate Change ◽  
Agroforestry Systems ◽  
Coffee Agroforestry ◽  
Climate Perception ◽  
Palabras Clave ◽  
Annual Total ◽  
Change Trend ◽  
Maximum Temperatures ◽  
High And Low Temperatures ◽  
Climate Analysis

Existe la percepción de que el clima está cambiando en todo el mundo, pero pocas veces se analiza cómo (y cuánto) es ese cambio. En esta nota se presentan avances del análisis del clima para Xalapa y Coatepec. Se realizó una caracterización del clima y se determinaron las tendencias de temperatura y precipitación considerando cómo ha cambiado el clima en 50 años (1961-2010). Se utilizó la metodología del Grupo de Expertos en Detección e Índices de Cambio Climático (ETCCDI por sus siglas en inglés). Se encontró que ambas ciudades se están volviendo térmicamente menos extremosos (menos diferencia entre temperaturas altas y bajas), igualmente se encontró que ahora hay mayor precipitación total anual, aunque en menos días. Se prevén incrementos de las temperaturas mínima y máxima de alrededor 0.02 y 0.008 °C/año, respectivamente y la precipitación anual se incrementaría un 17.3 % en Xalapa y un 7.3 % en Coatepec, para el 2050.Palabras clave: Cambio climático; análisis de tendencias; condiciones hídricas; sistemas agroforestales cafetaleros; percepción del clima AbstractThere is a strong perception that climate is changing worldwide, nevertheless few times this climate change has been detailed analyzed and, even less, measured. This note presents some progresses regarding climate analysis for the cities of Xalapa and Coatepec, using the methodology of the Expert Group on Detection and Indexes of Climate Change (ETCCDI). Climate characterization and tem perature and precipitation trends for 50 years (1960-2010) were realized. It was found that both cities are becoming thermally less extre­mes (with less difference between high and low temperatures). Similarly, it was found a cu­rrent increment in annual total precipitation, even though there are less rainy days. Increa­ses are expected in minimum and maximum temperatures of 0.02 °C/year and 0.008 °C for year, respectively, and annual total precipita­tion would be increased about 17.3% for Xala­pa and 7.3% for Coatepec.Keywords: Climate change; trend analysis; water conditions; coffee agroforestry systems; climate perception 

scholarly journals Soil macrofauna under different land uses in the Colombian Amazon

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 ◽  
...  
Keyword(s):  
Land Use ◽  
Diversity Index ◽  
Principal Component ◽  
Agroforestry Systems ◽  
Native Forest ◽  
Land Uses ◽  
Soil Macrofauna ◽  
Land Use Effects ◽  
Colombian Amazon ◽  
Taxonomic Groups

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.

scholarly journals Towards an ecological index for tropical soil quality based on soil macrofauna

2009 ◽  
Vol 44 (8) ◽  
pp. 1056-1062 ◽  
Author(s):  
Esperanza Huerta ◽  
Christian Kampichler ◽  
Violette Geissen ◽  
Susana Ochoa-Gaona ◽  
Ben de Jong ◽  
...  
Keyword(s):  
Soil Quality ◽  
Quality Index ◽  
Agroforestry Systems ◽  
Soil Quality Index ◽  
Soil Macrofauna ◽  
Ecological Index ◽  
Natural Systems ◽  
Simple Index ◽  
Earthworm Biomass

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.

scholarly journals Soil macrofauna as a bioindicator of soil quality in successional agroforestry systems

2021 ◽  
Vol 10 (10) ◽  
pp. e580101019144
Author(s):  
Rafaela Martins da Silva ◽  
Rakiely Martins da Silva ◽  
Sandra Santana de Lima ◽  
Jianne Rafaela Mazzini de Souza ◽  
Jheny Kesley Mazzini de Souza ◽  
...  
Keyword(s):  
Soil Quality ◽  
Rainy Season ◽  
Agroforestry System ◽  
Agroforestry Systems ◽  
Dry Season ◽  
Native Forest ◽  
Secondary Forests ◽  
Euterpe Oleracea ◽  
Soil Macrofauna ◽  
Time Of Collection

The objective of this study was to evaluate soil macrofauna as a bioindicator of soil quality in successional agroforestry systems and secondary forests. The study was conducted in the southern lower region of Bahia in Brazil, in two areas: a successional agroforestry system (AFS18) and native forest (NF).  AFS18 consists of two species: mahogany (Khaya ivorensis and Khaya grandifoliola), açaí (Euterpe oleracea), cacao (Theobroma cacau) and banana (Musa spp.).  Sampling was carried out in the dry (June) and rainy (October) seasons of 2019, and eight soil monoliths were collected in both areas.  A total of 889 individuals from the soil macrofauna were sampled. The highest frequency (RF) of taxons occurred in NF in the rainy season, and the groups that stood out were: Oligochaeta with 42% FR in ASF18, Formicide with 33.9% in NF and Isoptera with 58% in AFS18. The macrofauna structure of the soil varied according to the time of collection. The density of macrofauna individuals differed between areas only in the dry season. The highest number of ind.m² was observed in the area NF (378) when compared to ASF18 (196). TOC, Mg2+, Al3+ and CTC were related to AF on both occasions of collection and AFS18 in the rainy season, K+, P and pH were associated with AFS18 in the dry season. The diversity, equitability and richness of the soil macrofauna was greater in AF area. HFA18 in the rainy season was similar to NF, favoring colonization of the area by soil macrofauna organisms.

scholarly journals Macrofauna evaluation in two coffee agroforestry systems

2021 ◽  
Vol 38 (2) ◽  
pp. 89-98
Author(s):  
Jorge Fernando Navia ◽  
Wilmer Libey Delgado-Gualmatan ◽  
Tulio César Lagos-Burbano
Keyword(s):  
Statistical Treatment ◽  
Winter Season ◽  
Agroforestry Systems ◽  
Tropical Soil ◽  
Native Forest ◽  
Soil Biology ◽  
Soil Macrofauna ◽  
Coffee Agroforestry ◽  
Different Seasons ◽  
Number Of Individuals

Knowing the soil macrofauna and its distribution is important to predict the degradation state of a soil as well as its physical properties and biological components. This research was carried out in coffee ecotopes 220A and 221A in southern Colombia. Two systems were evaluated, Coffea arabica var Castillo and native forest coffee, during two different seasons, winter and summer. Sampling was carried out using the tropical soil biology and fertility program (TSBF) methodology. The statistical treatment was carried out by means of a non-parametric analysis of variance Kruskal-Wall test. The density of orders present per square meter was evaluated, demonstrating that the highest density occurred in the winter season in the ecotope 220A and 221A forest system, with averages of 9.33 orders/ m2 and 9.67 orders/ m2, respectively. The highest number of density of individuals was obtained in winter, in the forest system and coffee in the 220A and 221A ecotopes with averages ranging between 1808 individuals/ m2 and 1368 individuals/ m2, statistically exceeding the number of individuals/ m2 that appeared in summer season. For biomass, the highest contribution was obtained in the winter season, with averages of 186.5 grams/ m2 in the 220A ecotope and 205.74 grams/ m2 for the 221A ecotope, exceeding the biomass that was presented in coffee winter season time, both in the 220A and 221A ecotopes.

Situación actual de la especie Cordia Alliodora en un bosque seco, de la Provincia de Manabí, Ecuador

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Blanca S. Indacochea Ganchozo ◽  
C. Rogelio Sotolongo ◽  
C. Maurilio R García López ◽  
Johann Parrales Villacreses ◽  
Mayer Sabando Mera
Keyword(s):  
Keystone Species ◽  
Management Plan ◽  
Agroforestry Systems ◽  
Dry Forest ◽  
Diameter Distribution ◽  
Cordia Alliodora ◽  
Ecosystem Integrity ◽  
Palabras Clave ◽  
Toma De Decisiones ◽  
Management And Conservation

RESUMEN La provincia de Manabí  se encuentra notablemente deforestada y la pérdida de los bosques nativos   es el principal problema ambiental que históricamente ha debido enfrentar. Considerando que Cordia alliodora ha sido pobremente descrita en su diversidad y  en  la estructura  de  sus  poblaciones en Jipijapa,  es  necesario  conocer  este  tipo  de  bosques para contribuir a  la  información acerca de  la riqueza de especies, y  las asociaciones  en estos tipos  de vegetación, para  la  toma de  decisiones  en  la realización  de actividades de manejo y conservación. La abundancia, dominancia, la distribución diamétrica regular de   C. alliodora así como la frecuencia de individuos adultos aislados y en regeneración natural sugiere su potencial para ser incorporadas a un programa de manejo forestal para la recuperación de estos bosques. La prioridad que se le está dando a C. alliodora permite asumirla como especie clave para el mantenimiento de la integridad del ecosistema, la dinámica forestal, la recuperación de la estructura de estos bosques, de su riqueza y diversidad, para alcanzar estos objetivos se han estudiado sitios en fincas agroforestales ubicadas en zonas de bosque seco del cantón Jipijapa en la provincia de Manabí, Ecuador. Palabras clave: Cordia alliodora, bosque húmedo, sistemas agroforestales. ABSTRACT The province of Manabí is significantly deforested and loss of native forests is a major environmental problem that historically has faced. Whereas Cordia alliodora has been poorly described in their diversity and structure of populations in Jipijapa, you must know these forests to contribute to information about species richness and associations in these vegetation types, for decisions in conducting management and conservation activities. The abundance, dominance, regulate the diameter distribution of C. alliodora and the frequency of adult isolation and natural regeneration suggests their potential to be incorporated into a forest management plan for the recovery of these forests.  The priority is being given to C. alliodora lets assume it as keystone species in maintaining ecosystem integrity, forest dynamics, the recovery of the structure of these forests, its richness and diversity, to achieve these objectives have been studied agroforestry farm sites located in forest areas Jipijapa canton wet in the Manabí province, Ecuador. Key words: Cordia alliodora, dry forest, agroforestry systems.

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

2021 ◽  
Author(s):  
Asaye Asfaw ◽  
Solomon Zewudie
Keyword(s):  
Soil Properties ◽  
Agricultural Development ◽  
Temporal Dynamics ◽  
Plant Species Richness ◽  
Life Forms ◽  
Agroforestry Systems ◽  
Dry Season ◽  
Home Garden ◽  
Soil Macrofauna ◽  
Economic Constraints

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.

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