Work

Derivation of Soil Line Influence on Two-Band Vegetation Indices and Vegetation Isolines

Year: 2009

Type: article

Abstract: This paper introduces derivations of soil line influences on two-band vegetation indices (VIs) and vegetation isolines in the red and near infra-red reflectance space. Soil line variations are described as changes in the soil line parameters (slope and offset) and the red reflectance of the soil surface. A general form of a VI model equation written as a ratio of two linear functions (e.g., NDVI and SAVI) was assumed. It was found that relative VI variations can be approximated by a linear combination of the three soil parameters. The derived expressions imply the possibility of estimating and correcting for soil-induced bias errors in VIs and their derived biophysical parameters, caused by the assumption of a general soil line, through the use of external data sources such as regional soil maps.

Source: Remote Sensing

DOI: 10.3390/rs1040842

Authors: Hiroki Yoshioka, Tomoaki Miura, José A. M. Demattê, Karim Batchily, Alfredo R. Huete

Institutions: Aichi Prefectural University, University of Hawaiʻi at Mānoa, Universidade de São Paulo, Natural Resources Conservation Service, University of Arizona

Language: English

Topic: Remote Sensing in Agriculture

Subfield: Ecology

Field: Environmental Science

Domain: Physical Sciences

SDG: Life on land

Open Access status: gold

Estimated APC paid: $3,258