Mundava, Charity

Schut, Antonius

Stovold, Richard

Donald, Graham

Lamb, David

Helmholz, Petra

2013

Remote sensing for the assessment and mapping of total standing biomass relies on accurate ground data for calibration and validation. The spatial heterogeneity of rangelands pose challenges in sampling methodologies, demanding a large number of replicate measurements that are expensive and labour demanding when working on the scale of pastoral stations. In this paper we present a ground truthing protocol that can be used for biomass estimation in heterogeneous rangeland environments, important for the development of assessments based on remote sensing or growth modelling. The protocol is based on a combination of visual estimates, crop circle NDVI, and disk-plate meter height recordings. Relationships between these indirect measurements and biomass were specific for either season or vegetation type. A combination of these measurements in a multivariate regression provided an accurate alternative, while strongly reducing the number of cuts required.

Proceedings of the IEEE International Geoscience and Remote Sensing Symposium (IGARSS), p. 2122-2124

9781479911141

2153-7003

2153-6996

https://hdl.handle.net/1959.11/14214

en

Institute of Electrical and Electronics Engineers (IEEE)

Ground Truthing Protocols for Biomass Estimation in Rangeland Environments

Conference Publication

Publication