The diversity and abundance of insects ground between natural forests and plantations in each age class Dung District, Udon Thani. For comparison purposes, a variety of insects ground between natural forests and plantations. And the relationship between a variety of insects, soil and environmental factors. The six areas include all areas of forest plantations aged 1 year to 7 years 11 years 12 years 40 years and using trap-hole total of 22 sets, each with 3-4 sets of data per month for the second time since January. - March 2559 found 28 species of insects, soil all 3441 and benthos another number. (Not an insect) 5 found insects in the forest 12 families, one of the rubber age 1 year, 12 families, two of the rubber age 7 years, 15 families, three of plantations aged 11 years 17 families second largest rubber plantation, age 12 years. 14 families, two top and rubber plantations, 40, 14, the third rank in comparison diversity that values diversity in the natural forest area equal to (0.81), rubber age one year (0.78) 7 (1.25) 11 (0.50). 12 (0.52) and 40 years (1.33) shows that 40-year-old rubber plantation areas as diverse as high as possible. When the relationship between insects and soil conditions found. There are some animals that are related to environmental factors. The insects are wingless Aging (Gryllacrididae) group at the crown (Lygaeidae) is associated with the humidity. Insects, insect spinning fiber (Embioptera) group bedbug (Cimicidae) group of spiders (Araneae) group Flour Beetle (Tenebrionidae) and termites (Termitdae) is related to the temperature of the bedbug (Cimicidae) group Flour Beetle (Tenebrionidae) of termites. (Termitdae) ants and beetles (Anthicidae) is correlated with soil moisture, the bees to wasps, ants (Formicidae) group beetle fruit. (Nitidulidae) group Diplra the Spiders (Araneae) and grasshoppers (Acrididae) is correlated with the moisture litter group insect relief (Scarabaeidae) The termites (Termitdae) groups of beetles, ants (Acrididae) and centipedes (Chilopoda) are associated. % covered with bees on the ground wasps, ants (Formicidae) group of spiders (Araneae) group insect spinning fiber (Embioptera) and the aging mortar. (Gryllacrididae) correlated with% covered litter
Keywords: variety, soil, insects, natural forests, plantations, relationship.
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