کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4572487 | 1629266 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improvements to the dispersion status of piped gully soils following reworking and stabilisation by vegetation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The physical and chemical properties of sodic gully bank soil material, deposited as in-channel sedimentary structures below a pipe system in alkaline marls, Colorado, USA, were re-analysed for their dispersive status using a new methodology. The original samples were taken from in-gully sedimentary structures with differing densities of established vegetation cover. Taking the more fully established vegetation densities to suggest increasing time since the soil samples were reworked by hydraulic processes, the samples were assigned to a three-point scale ('fresh-no vegetation', 'stabilised: some vegetation', and 'stabilised: revegetated') using detailed site descriptions. These groups were found to be significantly different from each other in terms of the SAR1 and EC2. The material's pH was also significantly different following revegetation. The site 'signatures' for each class suggest that a model of stabilisation for the soils following revegetation can be usefully described by this approach.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: CATENA - Volume 70, Issue 3, 1 August 2007, Pages 410-415
Journal: CATENA - Volume 70, Issue 3, 1 August 2007, Pages 410-415
نویسندگان
Hazel Faulkner,