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首页> 美国政府科技报告 >Changes in Pipe-Ditch Soils on Rights-of-Way in Illinois. Topical Report, October1986-January 1990
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Changes in Pipe-Ditch Soils on Rights-of-Way in Illinois. Topical Report, October1986-January 1990

机译：伊利诺伊州管道沟土壤的权利变化。专题报告，1986年10月至1990年1月

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Trenching and backfilling operations required for the construction of undergroundgas pipelines change the physical and chemical properties of native soils, resulting in new pipe-ditch soils. The productivity of these new pipe-ditch soils is defined by their chemical and physical properties and related reactions (edaphic conditions). The study was conducted to measure the physical and chemical differences among pipe-ditch and adjacent native soils, relate differences among pipe-ditch soils to the time between pipeline installation and soil sampling, and compare pipe-ditch soil properties with native soil characteristics and crop fertility requirements to estimate pipe-ditch soil productivity. Two sites with two pipelines were selected: one with a light-textured native soil in Kankakee County, Illinois, and another with a heavy-textured native soil in Iroquois County, Illinois. Replicate soil samples were collected at three depths from two pipe-ditch soils and the native soil at each site. The results of physical and chemical analyses were compared statistically to determine if significant differences existed among the three soils at each site. Physical and chemical properties of the pipe-ditch soils were different (some parameters were significantly different) from those of the native soils at each site. Differences also existed between the two pipe-ditch soils at each site, but these differences do not appear to be related to the time between pipeline installation and soil sampling. Statistically significant differences between the chemical and physical properties and established crop fertility requirements of pipe-ditch soils and the native soils were not of the magnitude to influence soil productivity.

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