Recovery after experimental cutting and burning in three shrub communities with different dominant species

被引:65
作者
Calvo, L [1 ]
Tárrega, R [1 ]
Luis, E [1 ]
Valbuena, L [1 ]
Marcos, E [1 ]
机构
[1] Univ Leon, Fac Biol, Area Ecol, E-24071 Leon, Spain
关键词
Calluna vulgaris; Cistus ladanifer; community recovery; disturbances; Erica australis; shrublands;
D O I
10.1007/s11258-005-0200-z
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The aim of this study is to compare the recovery dynamics in three shrub communities subjected to experimental burning and cutting, and situated on an altitudinal gradient. Climatic features are different in each area, but all had the common characteristic of very homogeneous vegetation cover before the disturbances, with only one shrub species clearly dominant, a different taxon in each area, and with different regeneration strategies. The first area was a heathland dominated by Calluna vulgaris, situated at an altitude of 1600 m, with a continental climate (mean annual precipitation 1320 mm). The second area was a heathland dominated by Erica australis, located at an altitude of 1000 m (mean annual precipitation 840 mm). The third area was a Cistus ladanifer shrubland, located at 900 m altitude, with a Mediterranean climate similar to that of the previous area, but with lower mean annual precipitation (470 mm). Erica australis recovers by vegetative resprouting, but Cistus ladanifer is an obligate seeder, as is Calluna vulgaris in these areas. Each experimental disturbance was carried out over 100 m(2) in each area. Post-fire recovery is faster in Cistus ladanifer: 2 years after burning there was 40% cover vs. less than 20% in the other two species. However, recovery after cutting was similar for Cistus ladanifer and Erica australis. Calluna vulgaris recovers very slowly, with cover values below 20% even 10 years after both disturbances. Cover of dominant shrub species is negatively correlated with cover of herbaceous species. So different recovery of dominant species lead a different community dynamic in each area.
引用
收藏
页码:175 / 185
页数:11
相关论文
共 47 条
[41]   DIVERSITY AND STABILITY IN GARRIGUE ECOSYSTEMS AFTER FIRE [J].
TRABAUD, L ;
LEPART, J .
VEGETATIO, 1980, 43 (1-2) :49-57
[42]  
Trabaud L., 1987, Plant response to stress. Functional analysis in Mediterranean ecosystems., P607
[43]  
TRABAUD L, 2000, LIFE ENV MEDITERRANE, P229
[44]   Seed banks of Erica australis and Calluna vulgaris in a heathland subjected to experimental fire [J].
Valbuena, L ;
Tárrega, R ;
Luis-Calabuig, E .
JOURNAL OF VEGETATION SCIENCE, 2000, 11 (02) :161-166
[45]  
Valbuena L., 1992, International Journal of Wildland Fire, V2, P15, DOI 10.1071/WF9920015
[46]  
Vera M. L., 1995, Studia Oecologica, V12, P223
[47]   The traditional management of European heathlands [J].
Webb, NR .
JOURNAL OF APPLIED ECOLOGY, 1998, 35 (06) :987-990