Soils, analysis erosion

Frankenberger, Jr., and Muhammad Arshad Handbook of Weed Management Systems, edited by Albert E. Smith Soil Sampling, Preparation, and Analysis, Kim H. Tan Soil Erosion, Conservation, and Rehabilitation, edited by Menachem Agassi Plant Roots The Hidden Half, Second Edition, Revised and Expanded, edited by Yoav Waisel, Amram Eshel, and Uzi Kafkafi Photoassimilate Distribution in Plants and Crops Source-Sink Relationships, edited by Eli Zamski and Arthur A. Schaffer Mass Spectrometry of Soils, edited by Thomas W. Boutton and Shinichi Yamasaki... 

Table 5 presents the regression analysis and estimated quantities of residues that must remain on the field subject to a reduced/mulch till, continuous corn rotation on a Shidler-Catoosa silt-loam soil in Allen County, Kansas. In this example, the regression equation is fitted to the following five pairs of erosion and dry residue-equivalent yield data (20.79 and 1.145, 15.19 and 1.615, 11.70 and 1.839, 9.16 and 2.062, and 7.68 and 2.244). This provides an estimated intercept of 34.755 and a slope of-12.269. Using Eq. 5 and a T value of 11.2 Mg/(ha-yr), the quantity of residue that must remain on the field is estimated as 6.82 Mg/(ha-yr). 

In the initial series of experiments a fluorocarbon paddle was used with the agitator. Analysis of the treated soil samples revealed the presence of an unknown halogenated contaminant which was later determined to be partially decomposed fluorocarbon. The combination of reagent and erosion from the soil had broken down the fluorocarbon used in the agitator. This interference required some additional sample cleanup. Changing to a glass paddle solved the problem for laboratory testing. 

The experimental watershed was simulated in the State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Science, Yangling, Shannxi province. It lasted for ten months. The basis for the experiment is to create a lab-based suitable and manmade test site where the loess material and surface configuration could correctly represent the true bess surface through a series of statistic analysis and pre-experiment. 

Wang X., Li Z.B. Lu K.X. 2005. Grey correlation analysis on relationship between soil detachment rate and hydrodynamic erosion factors. Journal of Hydraulic Engineering. 36(5) 525-530. 

Applications - drilling fluids, gel for chemical analysis, irrigation water treatment for erosion reduction, soft tissue filler, soil hydration ... 

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