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SHORT-TERM VEGETATION RECOVERY AFTER A GRASSLAND FIRE IN LITHUANIA: THE EFFECTS OF FIRE SEVERITY, SLOPE POSITION AND ASPECT
被引:62
作者:
Pereira, Paulo
[1
]
Cerda, Artemi
[2
]
Jordan Lopez, Antonio
[3
]
Zavala, Lorena M.
[3
]
Mataix-Solera, Jorge
[4
]
Arcenegui, Victoria
[4
]
Misiune, Ieva
[1
]
Keesstra, Saskia
[5
]
Novara, Agata
[6
]
机构:
[1] Mykolas Romeris Univ, Ctr Environm Management, Ateities G 20, LT-08303 Vilnius, Lithuania
[2] Univ Valencia, Dept Geog, Valencia 2846010, Spain
[3] Univ Seville, Dept Crystallog Mineral & Agr Chem, MED Soil Res Grp, Seville, Spain
[4] Miguel Hernandez Univ, Dept Agrochem & Environm, Environm Soil Sci Grp, Alicante, Spain
[5] Wageningen Univ, Soil Phys & Land Management Grp, Droevendaalsesteeg 4, NL-6708 PB Wageningen, Netherlands
[6] Univ Palermo, Dipartimento Sistemi Agroambientali, Viale Sci, Palermo, Italy
关键词:
vegetation recovery;
spring fires;
fire severity;
slope aspect;
slope position;
FOREST STRUCTURE;
POSTFIRE REGENERATION;
PINUS-HALEPENSIS;
BOREAL FORESTS;
SEMINATURAL GRASSLAND;
SPECIES COMPOSITION;
PRESCRIBED FIRE;
CLIMATE-CHANGE;
BURN SEVERITY;
LAND-USE;
D O I:
10.1002/ldr.2498
中图分类号:
X [环境科学、安全科学];
学科分类号:
08 ;
0830 ;
摘要:
In Lithuania, fire is frequently used by farmers as a tool to remove dry grass, improve soil nutrient status and help soil tilling. However, little is known about the ecological impacts of these fires, including vegetation recovery. The objective of this work is to study the impacts of a spring grassland fire on vegetation recuperation on an east-facing (A) and a west-facing slope (B), considering fire severity and slope position, 10, 17, 31 and 46 days after the fire. Because of their effects on fire behaviour, aspect, steepness and heterogeneity of topography favoured higher fire severity on slope B than on slope A. Three different slope positions were identified on slope A - flat top, middle slope and flat bottom - and five on slope B - flat top, middle slope, flat middle slope, slope bottom slope and flat bottom. Fire severity was high in top slope positions. The recovery of vegetation was very fast. By the end of the study, vegetation covered nearly 100% of the study area, although fire severity, aspect and slope characteristics had implications on vegetation recovery. Plant cover recovered quickly on slope A. Ten and 17 days after the fire, plant cover was high in the bottom positions, where fire severity was relatively low. The major vegetation recuperation was observed between 17 and 31 days after the fire, in response to high rainfall. Copyright (C) 2016 John Wiley & Sons, Ltd.
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页码:1523 / 1534
页数:12
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