XXII ISPRS Congress 2012: Technical Commission VIII

Shortis, M.; Shimoda, H.; Cho, K.

Bibliographic data

Multivolume work

Persistent identifier:: 1663813779

Title:: XXII ISPRS Congress 2012

Sub title:: Melbourne, Australia, 25 August-1 September 2012

Year of publication:: 2013

Place of publication:: Red Hook, NY

Publisher of the original:: Curran Associates, Inc.

Identifier (digital):: 1663813779

Language:: English

Additional Notes:: Kongress-Thema: Imaging a sustainable future

Corporations:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Adapter:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Founder of work:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Other corporate:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Document type:: Multivolume work

Volume

Persistent identifier:: 1663822514

Title:: Technical Commission VIII

Scope:: 590 Seiten

Year of publication:: 2014

Place of publication:: Red Hook, NY

Publisher of the original:: Curran Associates, Inc.

Identifier (digital):: 1663822514

Illustration:: Illustrationen, Diagramme

Signature of the source:: ZS 312(39,B8)

Language:: English

Additional Notes:: Erscheinungsdatum des Originals ist ermittelt.; Literaturangaben

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Editor:: Shortis, M.; Shimoda, H.; Cho, K.

Corporations:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Adapter:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Founder of work:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Other corporate:: International Society for Photogrammetry and Remote Sensing, Congress, 22., 2012, Melbourne; International Society for Photogrammetry and Remote Sensing

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2019

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: [VIII/6: Agriculture, Ecosystems and Bio-Diversity]

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: RIPARIAN VEGETATION STATUS AND RATES OF WATER USE FROM SATELLITE DATA K. Sheffield, M. Abuzar, D. Whitfield, A. McAllister, M. O'Connell

Document type:: Multivolume work

Structure type:: Chapter

International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XXXIX-B8, 2012 XXII ISPRS Congress, 25 August — 01 September 2012, Melbourne, Australia RIPARIAN VEGETATION STATUS AND RATES OF WATER USE FROM SATELLITE DATA K. Sheffield ^ *, M. Abuzar?, D. Whitfield^, A. McAllister^, M. O'Connell" ? Future Farming Research Division, Department of Primary Industries, Parkville, Victoria - (kathryn.sheffield, mohammad.abuzar) @dpi.vic.gov.au ^ Future Farming Research Division, Department of Primary Industries, Tatura, Victoria - (des.whitfield, andy.mcallister, mark.oconnell) 9 dpi.vic.gov.au KEY WORDS: Ecosystem, Vegetation, Multitemporal, Landsat, Management ABSTRACT: Hydrology and water availability are key determinants of the health of riparian vegetation systems, and an understanding of the interactions between vegetation and hydrology is a prerequisite for the maintenance and improvement of these systems under managed water regimes. Changes to natural flooding cycles, caused by the regulation of river flows and irrigation activities, have changed the composition and amount of vegetation, and the distribution of species within riparian areas (Chong and Ladson, 2003; Lawrence and Colloff, 2008). The extent and frequency of flooding cycles are key issues for the health of riparian ecosystems under controlled water management regimes. This paper demonstrates the potential contribution of satellite-based measurements to an improved understanding of the changes in vegetation status of riparian systems, and, also, of their water requirement. Evapotranspiration (ET) and Normalised Difference Vegetation Index (NDVI) of the Barmah Forest were derived from satellite imagery over a number of years. NDVI provided a general measure of vegetation status and cover. ET measures provided an indication of the availability of water to the existing vegetation, and an assessment of areas under water-stress (Anderson et al., 2012). Previous work has demonstrated that these indicators provide a comprehensive measure of riparian vegetation status (Sheffield et al., 2011), and estimates of vegetation water requirement (Whitfield et al., 2010a; Sheffield et al., 2011). This paper addresses changes in NDVI and ET rate of major vegetation classes in the Barmah Forest over the period, 1993 — 2008. Measures of ET and NDVI, analysed in conjunction with rainfall and river flow data, provided insights into the response of vegetation to changes in water availability, which may be used to evaluate impacts of management practices and water regime within riparian zones. 1. INTRODUCTION 1.1 Overview The physiological health and activity of riparian vegetation systems are heavily influenced by water availability and the hydrological processes that govern the distribution of water in time and space within those systems. The distribution and regeneration of plant species in riparian zones is also linked with water availability and factors such as frequency, timing, depth and duration of inundation during flood events. Inundation characteristics affect the distribution and abundance of riparian plant species in addition to a range of ecosystem functions and primary production within the riparian system (Chong and Ladson, 2003; MDBC, 2006; Stromberg et al., 2006; Lawrence and Colloff, 2008; Sims and Colloff, 2012). Water availability in riparian areas is also affected by natural events such as drought, and human activities including the regulation of river flows and irrigation. Environmental flows are increasingly employed to maintain riparian areas in regulated river systems, where the volume and extent of flooding is controlled by regulators, pipes and culverts. Issues such as frequency, duration and extent of riparian flooding are most pronounced under limited water supply, when regional water managers are required to address the balance between commercial and environmental uses of water. * Corresponding author. The water management of riparian systems will be better informed by an improved understanding of rates of water use relative to water requirements. An improved understanding of where the water is required is needed to improve the availability of water to targeted species or geographic zones. Objective, affordable repeatable measurements of vegetation status and water use are the minimum required to support improved water management of riparian systems in Australia and elsewhere. The use of satellite-based assessments of water use to support resource management and monitoring is advocated by Anderson et al (2012). This paper aims to demonstrate the potential contribution of satellite-based remotely sensed data to improved understanding of water requirements and vegetation status within the Barmah Forest, Australia. This paper aims to evaluate the information extracted from remotely sensed data as we hypothesize that it will provide important monitoring opportunities in riparian ecosystems. Remotely sensed data additionally allow a retrospective assessment of the impact of past and current water management on vegetation status. The data can be used to appraise the effectiveness of 'environmental flows' and identify areas of riparian vegetation in decline. This type of information will contribute to a greater understanding of water requirements within riparian systems. The extensive spatial coverage of remotely sensed data allow riparian vegetation to be assessed across the landscape, a key consideration in the connectivity of riparian systems which is important to both species diversity

Access restriction

Copyright

fullscreen: Technical Commission VIII (B8)

Multivolume work

Volume

Chapter

Chapter

Table of contents

Cite and reuse

Volume

Chapter

Image

Image fragment

Citation links

Citation recommendation