Desert Termite1Control in a Shortgrass Prairie: Effect on Soil Physical Properties2
作者:
Brian M. Spears,
Darrell N. Ueckert,
Terry L. Whigham,
期刊:
Environmental Entomology
(OUP Available online 1975)
卷期:
Volume 4,
issue 6
页码: 899-904
ISSN:0046-225X
年代: 1975
DOI:10.1093/ee/4.6.899
出版商: Oxford University Press
数据来源: OUP
摘要:
Control of the desert termiteGnathamitermes tubiformans(Buckley) in a shortgrass prairie in W Texas resulted in an improvement in the watershed value and soil-water relationships for forage plants. The percentages of>1-mm soil aggregates were greater on termite-free soils, whereas percentages of<1-mm aggregates were greater on termiteinfested soils. Organic carbon, forb production, and litter accumulation increased significantly on termite-free soils. Capillary pore space was normally higher in termite-free soils, while non-capillary pore space was normally higher in termite-infested soils. Termite control had no effect on total pore space, hydraulic conductivity, and bulk density in the soil studied. Rainfall infiltration was greater on termite-free soils after the 1st 15 min of a simulated rainstorm. Runoff and sediment load were greater on termite-infested rangeland than on termite-free rangeland. Evapotranspiration was greater on termite-free soils during a 7-day period following rainfall application. However, termite-free soils retained more moisture during dry periods than termite-infested soils.
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