Comparing Visible–Near‐Infrared Spectroscopy and a Pedotransfer Function for Predicting the Dry Region of the Soil‐Water Retention Curve

The CS semi‐logarithmic‐linear function anchored at a soil‐water matric potential of −106 cm H2O (log|−106| = pF 6) was fitted to the measured data because it accurately characterizes the WSIs. Thereafter, a vis–NIRS calibration model and a PTF, based on clay and organic C contents, were developed a...

Mô tả chi tiết

Lưu vào:

Hiển thị chi tiết
Tác giả chính:	Pittaki-Chrysodonta, Z.
Đồng tác giả:	Arthur, E.
Định dạng:	BB
Ngôn ngữ:	English
Thông tin xuất bản:	2020
Chủ đề:	Soil‐water retention curve Pedotransfer function Partial least squares Water vapor sorption isotherm
Truy cập trực tuyến:	http://tailieuso.tlu.edu.vn/handle/DHTL/9789
Từ khóa:	Thêm từ khóa bạn đọc Không có từ khóa, Hãy là người đầu tiên gắn từ khóa cho biểu ghi này!

id	oai:localhost:DHTL-9789
record_format	dspace
spelling	oai:localhost:DHTL-97892020-11-26T08:26:45Z Comparing Visible–Near‐Infrared Spectroscopy and a Pedotransfer Function for Predicting the Dry Region of the Soil‐Water Retention Curve Pittaki-Chrysodonta, Z. Arthur, E. Moldrup, P. Knadel, M. Norgaard, T. Iversen, B.V. de Jonge, L.W. Soil‐water retention curve Pedotransfer function Partial least squares Water vapor sorption isotherm The CS semi‐logarithmic‐linear function anchored at a soil‐water matric potential of −106 cm H2O (log\|−106\| = pF 6) was fitted to the measured data because it accurately characterizes the WSIs. Thereafter, a vis–NIRS calibration model and a PTF, based on clay and organic C contents, were developed and used to predict the two reference CS model parameters (α and W6). Both parameters were predicted with a reasonable degree of accuracy using vis–NIRS and the PTF (for α, RMSE values of 0.0041 and 0.0025, and for W6, RMSE values of 0.0042 and 0.0034 for vis–NIRS and the PTF, respectively). Based on the predicted α and W6 values, the predicted WSIs compared closely with the measured isotherms for individual soil samples from each field. At the field scale, the vis–NIRS model performed marginally better than the PTF. Thus, it is evident that the use of vis–NIRS or PTFs provides a relatively inexpensive approach to predicting soil water sorption isotherms. https://acsess.onlinelibrary.wiley.com/doi/10.2136/vzj2018.09.0180 2020-11-26T08:26:45Z 2020-11-26T08:26:45Z 2019 BB 1539-1663 http://tailieuso.tlu.edu.vn/handle/DHTL/9789 en Vadose Zone Journal, Volume 18, Issue 1 (2019), pp.1-13
institution	Trường Đại học Thủy Lợi
collection	DSpace
language	English
topic	Soil‐water retention curve Pedotransfer function Partial least squares Water vapor sorption isotherm
spellingShingle	Soil‐water retention curve Pedotransfer function Partial least squares Water vapor sorption isotherm Pittaki-Chrysodonta, Z. Comparing Visible–Near‐Infrared Spectroscopy and a Pedotransfer Function for Predicting the Dry Region of the Soil‐Water Retention Curve
description	The CS semi‐logarithmic‐linear function anchored at a soil‐water matric potential of −106 cm H2O (log\|−106\| = pF 6) was fitted to the measured data because it accurately characterizes the WSIs. Thereafter, a vis–NIRS calibration model and a PTF, based on clay and organic C contents, were developed and used to predict the two reference CS model parameters (α and W6). Both parameters were predicted with a reasonable degree of accuracy using vis–NIRS and the PTF (for α, RMSE values of 0.0041 and 0.0025, and for W6, RMSE values of 0.0042 and 0.0034 for vis–NIRS and the PTF, respectively). Based on the predicted α and W6 values, the predicted WSIs compared closely with the measured isotherms for individual soil samples from each field. At the field scale, the vis–NIRS model performed marginally better than the PTF. Thus, it is evident that the use of vis–NIRS or PTFs provides a relatively inexpensive approach to predicting soil water sorption isotherms.
author2	Arthur, E.
author_facet	Arthur, E. Pittaki-Chrysodonta, Z.
format	BB
author	Pittaki-Chrysodonta, Z.
author_sort	Pittaki-Chrysodonta, Z.
title	Comparing Visible–Near‐Infrared Spectroscopy and a Pedotransfer Function for Predicting the Dry Region of the Soil‐Water Retention Curve
title_short	Comparing Visible–Near‐Infrared Spectroscopy and a Pedotransfer Function for Predicting the Dry Region of the Soil‐Water Retention Curve
title_full	Comparing Visible–Near‐Infrared Spectroscopy and a Pedotransfer Function for Predicting the Dry Region of the Soil‐Water Retention Curve
title_fullStr	Comparing Visible–Near‐Infrared Spectroscopy and a Pedotransfer Function for Predicting the Dry Region of the Soil‐Water Retention Curve
title_full_unstemmed	Comparing Visible–Near‐Infrared Spectroscopy and a Pedotransfer Function for Predicting the Dry Region of the Soil‐Water Retention Curve
title_sort	comparing visible–near‐infrared spectroscopy and a pedotransfer function for predicting the dry region of the soil‐water retention curve
publishDate	2020
url	http://tailieuso.tlu.edu.vn/handle/DHTL/9789
work_keys_str_mv	AT pittakichrysodontaz comparingvisiblenearinfraredspectroscopyandapedotransferfunctionforpredictingthedryregionofthesoilwaterretentioncurve
_version_	1768589949639065600

Comparing Visible–Near‐Infrared Spectroscopy and a Pedotransfer Function for Predicting the Dry Region of the Soil‐Water Retention Curve

Tài liệu tương tự