PROBE THE IMPACT OF GEOMETRIC STANDARD DEVIATION OF SOIL PARTICLES (ΣG) ON REMOTE SENSING STUDY OF SOIL TEXTURE

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DANESH M.; BAHRAMI H.; ALAVIPANAH S.K.; NOWROUZI A.A.

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Journal: Watershed Management Research Year:2011 | Volume:- | Issue:1 (90) Page(s): 29-41

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Title

PROBE THE IMPACT OF GEOMETRIC STANDARD DEVIATION OF SOIL PARTICLES (ΣG) ON REMOTE SENSING STUDY OF SOIL TEXTURE

Author(s)

DANESH M. | BAHRAMI H. | ALAVIPANAH S.K. | NOWROUZI A.A. | Issue Writer Certificate

Keywords

GEOMETRIC STANDARD DEVIATIONQ2

HOMOGENEITYQ3

REMOTE SENSINGQ2

SOIL PARTICLEQ2

SOIL TEXTUREQ2

Abstract

Homogeneity of SOIL PARTICLEs is the potent factor which affects soil spectral signatures and known as the GEOMETRIC STANDARD DEVIATION of SOIL PARTICLEs (sg). This study presents the influence of sg on spectral studying of SOIL TEXTURE using four spectral data sets of LISSIII-P6 and was coincident sampling operations. Subsequent to satellite data preprocessing, some operations were done such as: Normalized Difference Vegetation Index, Principal Component Analysis, Soil Line Euclidean Distance and Unsupervised Classification on acquired data. By stratified randomized sampling method and according to the false color composite and protomorphic units of the main image of the study area, 95 sample points were eventually selected and gathered from 0-5cm of soil surface. Afterwards, GEOMETRIC STANDARD DEVIATION (sg) and texture fragments were determined for each sample point in the soil lab. Samples were accordingly divided into two parts, on the basis of the computed GEOMETRIC STANDARD DEVIATION: the first, sg<10 (homogeneous soil) and the second, sg³10 (heterogeneous soil). Subsequently via correlation operations for both group, it was expressly displayed which in the first group (sg<10), clay and sand had about 0.7-0.8 correlations with the remotely sensed data, whereas the second group (sg³10) had about 0-3-0.4. Hence, the GEOMETRIC STANDARD DEVIATION (sg) of the study region can powerfully impress soil spectral reflectance.

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APA: Copy

DANESH, M., BAHRAMI, H., ALAVIPANAH, S.K., & NOWROUZI, A.A.. (2011). PROBE THE IMPACT OF GEOMETRIC STANDARD DEVIATION OF SOIL PARTICLES (ΣG) ON REMOTE SENSING STUDY OF SOIL TEXTURE. WATERSHED MANAGEMENT RESEARCHES (PAJOUHESH-VA-SAZANDEGI), -(1 (90)), 29-41. SID. https://sid.ir/paper/200665/en

Vancouver: Copy

DANESH M., BAHRAMI H., ALAVIPANAH S.K., NOWROUZI A.A.. PROBE THE IMPACT OF GEOMETRIC STANDARD DEVIATION OF SOIL PARTICLES (ΣG) ON REMOTE SENSING STUDY OF SOIL TEXTURE. WATERSHED MANAGEMENT RESEARCHES (PAJOUHESH-VA-SAZANDEGI)[Internet]. 2011;-(1 (90)):29-41. Available from: https://sid.ir/paper/200665/en

IEEE: Copy

M. DANESH, H. BAHRAMI, S.K. ALAVIPANAH, and A.A. NOWROUZI, “PROBE THE IMPACT OF GEOMETRIC STANDARD DEVIATION OF SOIL PARTICLES (ΣG) ON REMOTE SENSING STUDY OF SOIL TEXTURE,” WATERSHED MANAGEMENT RESEARCHES (PAJOUHESH-VA-SAZANDEGI), vol. -, no. 1 (90), pp. 29–41, 2011, [Online]. Available: https://sid.ir/paper/200665/en

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