الملخص
Interpreting Electromagnetic (EM) surveys - Electromagnetic induction techniques have now largely replaced previous descriptive, and largely subjective, techniques used for soil salinity surveys. The question then is a matter of how to interpret the EM data. A very clear linkage exists between Apparent Electrical Conductivity (ECa) and the total soluble salts in the upper soil profile. This, in turn, can be interpreted as reflecting the degree of vertical/ lateral leaching of soluble salts, or of salt accumulation in the profile. Topography, depth to groundwater and groundwater salinity also appear to affect ECa, although they are not suited to rapid survey techniques and do not necessarily have a direct relationship with either the total salt content of the upper soil profile or the ECa values. The interpretation of isoconductivity maps in terms of the degree of leaching of the soil profile from point to point provides an added hydrological management perspective to EM soil salinity surveys.
الكلمات المفتاحية
بيانات النشر
- المعرّف الرقمي
- 10.24200/jams.vol19iss0pp63-70
- المجلة
- مجلة العلوم الزراعية والبحرية, 19, 63
- الناشر
- جامعة السلطان قابوس
- وصول مفتوح
- وصول مفتوح ذهبي
- الترخيص
- CC BY 4.0
اقتبس هذه المقالة
APA 7
Williams, B. G., & Anderson, J. (2014). Hydrological Aspects of Electromagnetic Surveys. Journal of Agricultural and Marine Sciences, 19, 63. https://doi.org/10.24200/jams.vol19iss0pp63-70
MLA 9
Williams, Baden G., and John Anderson. "Hydrological Aspects of Electromagnetic Surveys." Journal of Agricultural and Marine Sciences, vol. 19, 2014, pp. 63. https://doi.org/10.24200/jams.vol19iss0pp63-70.
شيكاغو (المؤلف–التاريخ)
Williams, Baden G., and John Anderson. 2014. "Hydrological Aspects of Electromagnetic Surveys." Journal of Agricultural and Marine Sciences 19: 63. https://doi.org/10.24200/jams.vol19iss0pp63-70.
هارفارد
Williams, B. G. and Anderson, J. (2014) 'Hydrological Aspects of Electromagnetic Surveys', Journal of Agricultural and Marine Sciences, 19, pp. 63. doi:10.24200/jams.vol19iss0pp63-70.
فانكوفر
Williams BG, Anderson J. Hydrological Aspects of Electromagnetic Surveys. Journal of Agricultural and Marine Sciences. 2014;19:63. doi:10.24200/jams.vol19iss0pp63-70
IEEE
B. G. Williams, and J. Anderson, "Hydrological Aspects of Electromagnetic Surveys," Journal of Agricultural and Marine Sciences, vol. 19, pp. 63, 2014, doi: 10.24200/jams.vol19iss0pp63-70.