Determinación de la macrofauna edáfica en distintos usos de suelos en tres agroecosistemas de la comunidad de Naubug

Abstract

The current research work proposes to determine the macro soil fauna biodiversity in different land uses in the community Naubug in Flores village, Riobamba city, using the TSBF (Tropical Soil Biology and Fertility Programme) (Anderson and Ingram, 1993) methodology and multivariable analysis of the most important functional groups of soil which are soil engineers, predators and saprophagous, resulting in three agro-ecosystems, in wich: cultivation of barley, quinoa, hedgerows of milin grass: the upper zone 5 land uses were determined, native and mixed trees, in the middle: crops of barley, quinoa, potatoes, hedgerows of milin grass, native tress, mixed, cultivated forest and wastelands; in the low; crops of barley, corn mixed hedgerows, wastelands and forest, finding 23 orders and 42 families with a total of 6665 individuals for the three agro-ecosystems in the upper zone 1122 individuals, 3473 to the middle and 981 for the lower area, the Coleoptera order (bettles) was presented prevailed in the three areas with 983 individuals in the agro uptown, 1659 in middle and 609 in the lower area. Followed by the order Haplotaxida (worms) to the upper area and middle with 746 and 807 respectively in each land use, and it was determined that the hedgerows have greater diversity due to a variety of bushes and grasses that provide abundant vegetable organic material and a better microenvironment for the establishment of beneficial soil macroinvertebrates recommending for sowing.

Keywords: soil macro fauna, land use, agricultural ecosystems, mixed hedgerows, biodiversity.