Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.foreco.2013.08.009 |
Forest performance during two consecutive drought periods: Diverging long-term trends and short-term responses along a climatic gradient | |
Dorman, Michael1; Svoray, Tal1; Perevolotsky, Avi2; Sarris, Dimitrios3,4,5 | |
通讯作者 | Dorman, Michael |
来源期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2013 |
卷号 | 310页码:1-9 |
英文摘要 | Forest decline, attributed to increased aridity under global climate change, has been observed with rising frequency worldwide. One of the knowledge gaps making its spatially explicit prediction difficult is the identification of the climatic settings that generate a significant change in the forest state. A relatively rare sequence of unfavourable climatic events - a short extreme drought followed by a prolonged moderate drought within one decade - has allowed us to examine how rainfall amount affects forest performance. Large-scale monitoring, at high spatial and temporal resolutions, is required to study climatic effects on forest performance. Therefore, time-series of spatially interpolated rainfall maps, remote sensing images and tree growth data were used to estimate the environmental settings to which the forests are exposed, and the corresponding forest performance responses. Performance was estimated from Normalized Difference Vegetation Index (NDVI) values obtained from 32 Landsat satellite images for 1994-2011. To widen the study perspective we sampled forest performance along a rainfall gradient (250-750 mm) in the planted Pinus halepensis forests in Israel. Performance response was not spatially homogeneous. Three response types could be identified along the rainfall gradient: stable performance with low correlation to rainfall pattern in the humid region (>500 mm), moderate performance decline with high correlation to rainfall in the intermediate region (350-500 mm), and steep performance decline with intermediate correlation to rainfall in the arid region (<350 mm). The response to the second drought differed among regions, unlike the response to the first drought, which was homogeneous. The observed diverging performance trend along the climatic gradient can be attributed to the varied importance of water availability as a limiting factor. The reduced effect of rainfall on performance deviations, the steep performance decline, and the difference between responses to the first and second droughts at the most arid locations, imply to higher importance of multi-annual accumulated and carried-over drought stress effects at these locations. (C) 2013 Elsevier B.V. All rights reserved. |
英文关键词 | Drought response Landsat Normalized Difference Vegetation Index (NDVI) Pinus halepensis Spatial interpolation |
类型 | Article |
语种 | 英语 |
国家 | Israel ; Cyprus ; Greece |
收录类别 | SCI-E |
WOS记录号 | WOS:000330601000001 |
WOS关键词 | PINUS-HALEPENSIS ; TREE MORTALITY ; ALEPPO PINE ; SPATIAL INTERPOLATION ; GROWTH ; PRECIPITATION ; VEGETATION ; MANAGEMENT ; DECLINE ; CARBON |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
来源机构 | Ben-Gurion University of the Negev |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/177189 |
作者单位 | 1.Ben Gurion Univ Negev, Dept Geog & Environm Dev, IL-84105 Beer Sheva, Israel; 2.Agr Res Org, Volcani Ctr, Dept Agron & Nat Resources, IL-50250 Bet Dagan, Israel; 3.Open Univ, Fac Pure & Appl Sci, CY-2252 Nicosia, Cyprus; 4.Univ Cyprus, Dept Biol Sci, CY-1678 Nicosia, Cyprus; 5.Univ Patras, Dept Biol, Div Plant Biol, Patras 265 00, Greece |
推荐引用方式 GB/T 7714 | Dorman, Michael,Svoray, Tal,Perevolotsky, Avi,et al. Forest performance during two consecutive drought periods: Diverging long-term trends and short-term responses along a climatic gradient[J]. Ben-Gurion University of the Negev,2013,310:1-9. |
APA | Dorman, Michael,Svoray, Tal,Perevolotsky, Avi,&Sarris, Dimitrios.(2013).Forest performance during two consecutive drought periods: Diverging long-term trends and short-term responses along a climatic gradient.FOREST ECOLOGY AND MANAGEMENT,310,1-9. |
MLA | Dorman, Michael,et al."Forest performance during two consecutive drought periods: Diverging long-term trends and short-term responses along a climatic gradient".FOREST ECOLOGY AND MANAGEMENT 310(2013):1-9. |
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