Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2017.03.016 |
Characterizing degradation of palm swamp peatlands from space and on the ground: An exploratory study in the Peruvian Amazon | |
Hergoualc&1; 39;h, Kristell2 | |
2017-06-01 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT
![]() |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2017 |
卷号 | 393 |
文章类型 | Article |
语种 | 英语 |
国家 | Indonesia; USA; Colombia |
英文摘要 | Peru has the fourth largest area of peatlands in the Tropics. Its most representative land cover on peat is a Mauritia flexuosa dominated palm swamp (thereafter called dense PS), which has been under human pressure over decades due to the high demand for the M. flexuosa fruit often collected by cutting down the entire palm. Degradation of these carbon dense forests can substantially affect emissions of greenhouse gases and contribute to climate change. The first objective of this research was to assess the impact of dense PS degradation on forest structure and biomass carbon stocks. The second one was to explore the potential of mapping the distribution of dense PS with different degradation levels using remote sensing data and methods. Biomass stocks were measured in 0.25 ha plots established in areas of dense PS with low (n = 2 plots), medium (n = 2) and high degradation (n = 4). We combined field and remote sensing data from the satellites Landsat TM and ALOS/PALSAR to discriminate between areas typifying dense PS with low, medium and high degradation and terra firme, restinga and mixed PS (not M. flexuosa dominated) forests. For this we used a Random Forest machine learning classification algorithm. Results suggest a shift in forest composition from palm to woody tree dominated forest following degradation. We also found that human intervention in dense PS translates into significant reductions in tree carbon stocks with initial (above and below-ground) biomass stocks (135.4 +/- 4.8 Mg C ha(-1)) decreased by 11 and 17% following medium and high degradation. The remote sensing analysis indicates a high separability between dense PS with low degradation from all other categories. Dense PS with medium and high degradation were highly separable from most categories except for restinga forests and mixed PS. Results also showed that data from both active and passive remote sensing sensors are important for the mapping of dense PS degradation. Overall land cover classification accuracy was high (91%). Results from this pilot analysis are encouraging to further explore the use of remote sensing data and methods for monitoring dense PS degradation at broader scales in the Peruvian Amazon. Providing precise estimates on the spatial extent of dense PS degradation and on biomass and peat derived emissions is required for assessing national emissions from forest degradation in Peru and is essential for supporting initiatives aiming at reducing degradation activities. (C) 2017 The Authors. Published by Elsevier B.V. |
英文关键词 | Aguajal CO2 Mauritia flexuosa Tropical peatland Land cover classification Remote sensing Satellite data |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000400535900006 |
WOS关键词 | LAND-COVER CLASSIFICATION ; ABOVEGROUND BIOMASS ; FOREST DEGRADATION ; FORELAND BASIN ; CARBON STOCKS ; OIL PALM ; DEFORESTATION ; CONVERSION ; EMISSIONS ; COMMUNITIES |
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/24143 |
专题 | 气候变化 |
作者单位 | 1.Ctr Int Forestiy Res CIFOR, Bogor 16115, Indonesia; 2.Temple Univ, Dept Geog & Urban Studies, 321 Gladfelter Hall,1115 W Berks St, Philadelphia, PA 19122 USA; 3.Ctr Int Trop Agr CIAT, Km 17, Cali, Colombia |
推荐引用方式 GB/T 7714 | Hergoualc&,39;h, Kristell. Characterizing degradation of palm swamp peatlands from space and on the ground: An exploratory study in the Peruvian Amazon[J]. FOREST ECOLOGY AND MANAGEMENT,2017,393. |
APA | Hergoualc&,&39;h, Kristell.(2017).Characterizing degradation of palm swamp peatlands from space and on the ground: An exploratory study in the Peruvian Amazon.FOREST ECOLOGY AND MANAGEMENT,393. |
MLA | Hergoualc&,et al."Characterizing degradation of palm swamp peatlands from space and on the ground: An exploratory study in the Peruvian Amazon".FOREST ECOLOGY AND MANAGEMENT 393(2017). |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Hergoualc&]的文章 |
[39;h, Kristell]的文章 |
百度学术 |
百度学术中相似的文章 |
[Hergoualc&]的文章 |
[39;h, Kristell]的文章 |
必应学术 |
必应学术中相似的文章 |
[Hergoualc&]的文章 |
[39;h, Kristell]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论