4Tomer M D, Boll J, et al.. Detecting alluvial lamellae in fine send using ground -penetrating radar. Soil Sci, 1996, 161 (2) : 121 - 129.
5Parkin G, Redman D, et al.. Measurement of soil water content below wastewater trench use ground -penetrating radar[J]. Water Resour. Res. , 2000, 36(8):2147-2154.
6Topp G. C, Davis J L, Annan AP. Electromagnetic determination of soil water content: measurements in coaxial transmission lines [J].Water Resour. Res, 1980, 16(3) :574 -582.
7Pepin S, Livingston N J, Hook W R. Temperature dependent measurement errors in time domain reflectometry determinations of soil water[J]. Soil Sci. SOc. Am. J, 1995, 59(1) :38 -43.
8Van overmeeren R A. , Sarlowan S V, Gehrels J C. Ground Penetrating radar for determining volumetric soil water content : results of comparative measurements at two test sites[J]. Journal of Hydrology, 1997, 197,316-338.
9Stoffregen H, Yaramanci U, Zenker T, Wessolek G. Accuracy of soil water content measure - elements using ground penetrating radar: comparison of ground penetrating radar and lysimeter data [J]. Journal of Hydrology, 2002, 267,201 -206.
10Lunt 1 A, Hubbard S S, Rubin Y. Soil moisture content estimation using ground - penetrating radar reflection data[ J]. Journal of Hydrology, 2005, 307,254 - 269.