Effect of Edaphic Factors on the Population Density of Soil Microarthropods in Agro Forestry Habitat

Hina Parwez, Nisha Sharma
Journal of Agroecology and Natural Resource Management Print   unpublished
Soil fauna is a group of animals which spend all or only part of their life cycle in soil. They are called Soil micro arthropods. They play a significant role in the breakdown of soil organic matters to access the nutrient reservoir process.They are involved in soil formation and maintenance of soil structure. The abundance of soil microarthropods is greatly affected by climate, intensive agriculture and different type of enviormentalfactors (Banerjee S.(1976).The most important variables
more » ... ant variables influencing micro arthropods communities are soil temperature, soil Ph and organic matter (Klironomos and Kendrick 1995).The objective this study was to know the effect of edaphic factors on the population density of soil microarthropodsin a semi arid zone of western U.P. in India. The extraction of soil micro arthropods was done by modified tullegren funnel and analyses of edaphic factors such as-soil temperature, soil moisture, organic carbon, available nitrogen, phosphate were done by standard laboratory methods. The result showed that the total number of microorthopods obtained from this site showed an irregular trend of fluctuation during the investigation period. Apterygote population dominated by Collemola and Diplurawhere asPterygote population was dominated by order-Diptera, Isoptera, Hymenoptera, Hemiptera and Coleoptera. Among edaphic factors-Soil temperature varied between 14˚Cto 29˚C, Soil moisture 0.68 to 3.79 % , Organic carbon 0.62 to 0.88% and available nitrogen varied between 211.5 to 278.0 ppm. This study strongly suggests that no single factor is responsible for the diversity of microorthopod population but all factors have a cumulative effect and soil microorthopods contribute in the healthy soil so they are potentially valuable for monitoring the soil health.