VARIABILITY OF SOIL PROPERTIES AND SOME SPECTRAL INDICATORS AND THE RELATIONSHIP BETWEEN THEM BY PEDOSTATISTICS WITHIN AL- MAIMOUNA PROJECT. MAYSAN GOVERNORATE/IRAQ
ANBAR JOURNAL OF AGRICULTURAL SCIENCES,
2019, Volume 17, Issue 2, Pages 220-236
AbstractAL-Mimouna project is located within the boundaries of Maysan Governorate between the latitude 46 ° 45 '00 "- 47? 00' 00" and Attitude 31 ° 30' 00" - 31 ° 45 '00". The project area is about 54460 hectares2. The research aimed to study the variation in soil characteristics using pedagogical statistics instead of methods (Mean. coefficient of variation. correlation coefficient) and infraclass correlation within Classes the varieties ri using the variance analysis table as well as the study of some spatial evidences such as the Normalized Differential Vegetation Index (NDVI) and Salinity Index (SI0) using the Operational Land Imager (OLI) sensor. Seven taxonomic units were selected at the sub-group level and forty-nine field sites were studies. The results indicated the dominance of the physiographic units of. depressions and marshes unit which accounted for more than 80% of the study area the fine texture SiC, SiL, SiCL, Gypsic Haplosalids were characterized by high rates of sand. salinity and ESP at 23.42, 72.62 and 35.09 respectively. Vertic torrifluents were characterized by a low sand rate of as was mentioned before 2.68 and a high clay rate of 42.46. The values of the density were very heterogeneous with high values at a average of 1.47 Gypsum was highest in Gypsic Aqusalids followed by gypsic Haplosalids at 3.67 and 3.57 respectively. The NDVI values were low and ranged from 0.07 to 0.13. with a high correlation and a negative correlation with soil salinity and soil salinity index SI0 and with correlation coefficient -0.375 and -0.379. respectively. The SI salinity index was consistent with increased salinity. calcification and reverse with increased organic matter and NDVI index. The intraclass correlation of ri gypsum and the organic matter were 0.93 each. Followed by the Sodium with a intraclass correlation of 0.92 ri. Followed by salinity, soil pH and cationic exchange capacity and porosity were 0.91, 0.84, 0.79, 0.79 respectively. The properties Calcium Carbonate, Clay and Bulk density, were significantly correlated. With a correlation coefficient of 0.74, 0.73, 0.71 respectively, While the rest were insignificant.
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