سامانه پشتیبانی خدمات اطلاعات

  اخبار و اعلانات

 آمار

تعداد نشریات161
تعداد شماره‌ها6,573
تعداد مقالات71,037
تعداد مشاهده مقاله125,522,649
تعداد دریافت فایل اصل مقاله98,782,335
Motaghian, H., Mohammadi, J., Karimi, A.. (1387). Catchment-scale spatial variability analysis of soil hydro-physical properties in a semi-arid region of Iran. , 13(2), 155-165. doi: 10.22059/jdesert.2008.36299
H. Motaghian; J. Mohammadi; A. Karimi. "Catchment-scale spatial variability analysis of soil hydro-physical properties in a semi-arid region of Iran". , 13, 2, 1387, 155-165. doi: 10.22059/jdesert.2008.36299
Motaghian, H., Mohammadi, J., Karimi, A.. (1387). 'Catchment-scale spatial variability analysis of soil hydro-physical properties in a semi-arid region of Iran', , 13(2), pp. 155-165. doi: 10.22059/jdesert.2008.36299
Motaghian, H., Mohammadi, J., Karimi, A.. Catchment-scale spatial variability analysis of soil hydro-physical properties in a semi-arid region of Iran. , 1387; 13(2): 155-165. doi: 10.22059/jdesert.2008.36299

Catchment-scale spatial variability analysis of soil hydro-physical properties in a semi-arid region of Iran

Desert
مقاله 7، دوره 13، شماره 2، اسفند 2008، صفحه 155-165    اصل مقاله (220.66 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22059/jdesert.2008.36299
نویسندگان
H. Motaghian1؛ J. Mohammadi* 2؛ A. Karimi3
1M.Sc. student, Shahrekord University, Shahrekord, Iran
2Associate professor, Shahrekord University, Shahrekord, Iran
3Assistant professor, Shahrekord University, Shahrekord, Iran
چکیده
Soil hydrau-physical data are important for many hydrological modelings. They are the main variables controlling
the key processes such as water and chemicals movement and transport in the soil profiles. This study was conducted
in order to analyze the spatial distribution of selected soil hydrau-physcial characteristics including infiltration rate
(IR), saturated hydraulic conductivity (Ks), bulk density (BD), clay, silt, and sand content. The study area was
sampled on a pseudo-regular sampling scheme with initial grid spacing of 1 km during June and July 2007.
Maximum coefficient of variation (CV) was found for IR (72%) and Ks (67%). While, BD showed a minimum CV of
9%. Statistical analyses illustrated that there is a significant difference (P<0.05) in the mean values of IR in two
different landforms, i.e., plateaus and alluvial plains. However, different land uses including rangelands and dry
farming revealed no significant differences in the mean values of measured IR. The contrasting results were obtained
for Ks. Geostatistical analyses revealed that the spatially dependent stochastic component (structure) was
predominant over the nugget variance (noise). The developed and modeled variograms of each variable were used in
generating kriged maps. As expected, these maps exploited spatial similarities among soil properties.
کلیدواژه‌ها
Infiltration rate؛ Kriging؛ Saturated hydraulic conductivity؛ Variogram
آمار
تعداد مشاهده مقاله: 2,089
تعداد دریافت فایل اصل مقاله: 2,060





سامانه مدیریت نشریات علمی. قدرت گرفته از سیناوب