Land management impacts on water quality following fire in a major water supply catchment

被引：6

作者：

Wade, A. ^{[1
,2
,3
]}

White, I. ^{[1
,4
]}

Worthy, M. ^{[1
]}

Gill, A. ^{[1
,5
]}

Mueller, N. ^{[6
,7
,8
,9
]}

Taylor, P. ^{[6
,8
]}

Wasson, R. ^{[10
,11
]}

机构：

[1] Australian Natl Univ, Fenner Sch Environm & Soc, Canberra, ACT, Australia

[2] Actew AGL, Canberra, ACT, Australia

[3] Natl Hlth & Med Res Council Water Quality Comm, Canberra, ACT, Australia

[4] UNESCO, Int Hydrol Programme, Paris, France

[5] Commonwealth Sci & Ind Res Org, Cooparat Res Ctr, Canberra, ACT, Australia

[6] Ecowise Environm Australia Pty Ltd, Canberra, ACT, Australia

[7] Australia Captial Terr, Canberra, ACT, Australia

[8] GHD Water Sci Grp, Canberra, ACT, Australia

[9] ACTEW Corp, Canberra, ACT, Australia

[10] Charles Darwin Univ, Darwin, NT, Australia

[11] Natl Univ Singapore, Ctr Resource & Environm Studies, Dept Geog, Singapore, Singapore

来源：

AUSTRALASIAN JOURNAL OF WATER RESOURCES | 2012年 / 16卷 / 02期

基金：

澳大利亚研究理事会;

关键词：

Water quality; water supply catchment; bushfires; fire recovery; forestry practice; salvage harvesting; catchment management; catchment rehabilitation;

D O I：

10.7158/W10-841.2013.16.2

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

Salvage harvesting and land clearance to re-establish radiata plantations in the lower catchment followed the January 2003 bushfires in the Cotter River water supply catchment. We report impacts of post-fire catchment disturbance on water quality and preliminary results of a recently completed works program to improve water quality. Suspended sediment concentrations as high as 39,000 mg/L and massive annual specific sediment yields between 520 and 950 t/km(2)/a from the 42 km(2) salvaged pine area occurred over three low-intensity rainfall years following the fire. In contrast, reservoir turbidity profiles in naturally-regenerated, upper-catchments returned to pre-fi re conditions within 12 to 18 months.

引用

页码：121 / 139

页数：19

共 50 条

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