Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2017.03.001 |
Improving forest sampling strategies for assessment of fuel reduction burning | |
Gharun, Mana1,2; Possell, Malcolm1,2; Jenkins, Meaghan E.1,3; Poon, Lai Fan1; Bell, Tina L.1,2; Adams, Mark A.1,2 | |
2017-05-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2017 |
卷号 | 392 |
文章类型 | Article |
语种 | 英语 |
国家 | Australia |
英文摘要 | Land managers typically make post hoc assessments of the effectiveness of fuel reduction burning (FRB), but often lack a rigorous sampling framework, A general, but untested, assumption is that variability in soil and fuel properties increases from small (similar to 1 m) to large spatial scales (similar to 10-100 km). Based on a recently published field-based sampling scheme, we addressed the following questions: (i) How much variability is captured in measurements collected at different spatial scales? (ii) What is the optimal number of sampling plots required for statistically robust characterisation of burnt areas? (iii) How can land managers improve their assessment of the effectiveness of FRB? We found that measurement variability does not increase with scale for all fuel components. Results showed that coarse woody debris is as variable at the small scale (plot, m) as it is at the landscape scale (km). For certain fuel components, such as litter biomass (in unburnt areas), overstorey biomass and leaf area, and soil properties such as total carbon and total nitrogen, samples taken at the small (plot) scale were indicative of variation at the larger scale of an individual FRB and more broadly across the landscape. We then tested the hypothesis that site stratification can reduce variability between sampling plots and as a consequence will reduce the required number of sampling plots. To test this hypothesis we used Landsat Normalized Difference Vegetation Index (NDVI) across areas treated with FRB and compared the number of sampling plots required to estimate mean fuel biomass with and without stratification. Stratification of burnt areas using remotely sensed vegetation indices reduced the number of sampling plots required. We provide a model of green biomass from Landsat NDVI and make recommendations on how sampling schemes can be improved for assessment of fuel reduction burning. (C) 2017 Elsevier B.V. All rights reserved. |
英文关键词 | Spatial analysis Forest fuel Soil carbon Soil nitrogen Biomass Stratified sampling Bushfires Prescribed burning Landsat 8 |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000400201900008 |
WOS关键词 | LEAF-AREA INDEX ; EUCALYPT FOREST ; WESTERN-AUSTRALIA ; PYROGENIC CARBON ; PRESCRIBED FIRE ; SOIL PROPERTIES ; GREENHOUSE-GAS ; PLANNED FIRES ; BIOMASS ; EMISSIONS |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/23817 |
专题 | 气候变化 |
作者单位 | 1.Univ Sydney, Sch Life & Environm Sci, Ctr Carbon Water & Food, Sydney, NSW 2006, Australia; 2.Bushfire & Nat Hazards Cooperat Res Ctr, East Melbourne, Vic 3002, Australia; 3.Univ Wollongong, Sch Biol, Ctr Environm Risk Management Bushfires, Fac Sci Hlth & Med, Wollongong, NSW 2522, Australia |
推荐引用方式 GB/T 7714 | Gharun, Mana,Possell, Malcolm,Jenkins, Meaghan E.,et al. Improving forest sampling strategies for assessment of fuel reduction burning[J]. FOREST ECOLOGY AND MANAGEMENT,2017,392. |
APA | Gharun, Mana,Possell, Malcolm,Jenkins, Meaghan E.,Poon, Lai Fan,Bell, Tina L.,&Adams, Mark A..(2017).Improving forest sampling strategies for assessment of fuel reduction burning.FOREST ECOLOGY AND MANAGEMENT,392. |
MLA | Gharun, Mana,et al."Improving forest sampling strategies for assessment of fuel reduction burning".FOREST ECOLOGY AND MANAGEMENT 392(2017). |
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