Evaluation of a visual assessment method for tree condition of eucalypt floodplain forests

作者: Nicholas J. Souter , Shaun Cunningham , Stuart Little , Todd Wallace , Bernard McCarthy

DOI: 10.1111/J.1442-8903.2010.00551.X

关键词:

摘要: Summary  For decades the floodplain forests of River Murray have endured effects prolonged water stress. This has resulted in significant crown dieback and loss condition. The Living (TLM) initiative aims to restore ecological health six Icon Sites along River. two eucalypts Red Gum (Eucalyptus camaldulensis) Black Box largiflorens) that dominate at five are undergoing widespread decline. To enable effective management restoration these forests, we developed a standardised tree condition assessment method. Named TLM method, it utilises visual range variables (extent density foliage crown, epicormic growth, new tip reproductive activity, leaf die-off, mistletoe infestation) measurements bark condition, diameter breast height dominance class. article describes method assesses for consistency between multiple observer teams after limited training. level agreement each comprised observers was assessed seven ten variables. Intra-class correlation used compare scores 30 trees on Gunbower Island Murray. all statistically with having coefficients over R = 0.5. found provide accurate estimates can be determine provides valuable monitoring tool assess interventions, such as flooding silvicultural thinning.

参考文章(13)
Marco Ferretti, Forest Health Assessment and Monitoring – Issues for Consideration Environmental Monitoring and Assessment. ,vol. 48, pp. 45- 72 ,(1997) , 10.1023/A:1005748702893
Svein Solberg, Lars Strand, Crown density assessments, control surveys and reproducibility Environmental Monitoring and Assessment. ,vol. 56, pp. 75- 86 ,(1999) , 10.1023/A:1005980326079
Nicholas J. Souter, Richard A. Watts, Melissa G. White, Amy K. George, Kate J. McNicol, A conceptual model of tree behaviour improves the visual assessment of tree condition Ecological Indicators. ,vol. 10, pp. 1064- 1067 ,(2010) , 10.1016/J.ECOLIND.2010.03.002
Amy K George, Keith F Walker, Megan M Lewis, None, Population status of eucalypt trees on the River Murray floodplain, South Australia River Research and Applications. ,vol. 21, pp. 271- 282 ,(2005) , 10.1002/RRA.846
David E. Busch, Stanley D. Smith, Mechanisms Associated With Decline of Woody Species in Riparian Ecosystems of the Southwestern U.S. Ecological Monographs. ,vol. 65, pp. 347- 370 ,(1995) , 10.2307/2937064
J. C. STROMBERG, V. B. BEAUCHAMP, M. D. DIXON, S. J. LITE, C. PARADZICK, Importance of low-flow and high-flow characteristics to restoration of riparian vegetation along rivers in arid south-western United States Freshwater Biology. ,vol. 52, pp. 651- 679 ,(2007) , 10.1111/J.1365-2427.2006.01713.X
John Innes, Methods to estimate forest health Silva Fennica. ,vol. 27, pp. 145- 157 ,(1993) , 10.14214/SF.A15668
Christine Stone, Andrew Haywood, Assessing canopy health of native eucalypt forests Ecological Management and Restoration. ,vol. 7, ,(2006) , 10.1111/J.1442-8903.2006.00288.X
Kenneth O. McGraw, S. P. Wong, Forming inferences about some intraclass correlation coefficients. Psychological Methods. ,vol. 1, pp. 30- 46 ,(1996) , 10.1037/1082-989X.1.1.30
Margaret A Palmer, Catherine A Reidy Liermann, Christer Nilsson, Martina Flörke, Joseph Alcamo, P Sam Lake, Nick Bond, Climate change and the world's river basins: anticipating management options Frontiers in Ecology and the Environment. ,vol. 6, pp. 81- 89 ,(2008) , 10.1890/060148