Edaphic relationships among Cirsio-Molinietum and related wet grassland communities in lowland Wales

被引:24
作者
Blackstock, TH
Stevens, DP
Stevens, PA
Mockridge, CP
Yeo, MJM
机构
[1] Countryside Council Wales, Bangor LL57 2LQ, Gwynedd, Wales
[2] Inst Terr Ecol, Bangor LL57 2UP, Gwynedd, Wales
[3] Countryside Council Wales, Cardiff CF3 0LT, S Glam, Wales
关键词
base status; ecological relationship; floristic composition; Molinietalia; multivariate analysis; soil chemistry;
D O I
10.2307/3237107
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Soil properties are characterized for a range of the Molinietalia vegetation types in lowland Wales. In this oceanic region there is overlap in the distribution of various forms of wet pasture dominated by Molinia caerulea and Juncus acutiflorus. There is subtle and continuous variation in species composition among four communities investigated; this has been analysed by Detrended Correspondence Analysis and partitioned between subcommunities recognized in Rodwell (1991). Canonical Variates Analysis indicated that the main differences in soil conditions between the vegetation classes are related to gradients in base-status; apparent variation in soil fertility may also be significant and requires further investigation. In general, Molinia-Cirsium dissectum fen-meadow soils have higher pH, higher Ca-levels, greater base saturation and lower acidity than Molinia-Potentilla erecta wet grasslands; those of Juncus-Galium palustre rush-pasture and Molinia-Crepis paludosa mire had relatively high levels of inorganic N. The findings are discussed with reference to ecological and phytosociological relationships, and also in the context of nature conservation.
引用
收藏
页码:431 / 444
页数:14
相关论文
共 51 条
[1]  
ALLEN SE, 1989, CHEM ANAL ECOLOGICAL
[2]  
[Anonymous], 2001, MOSS FLORA BRITAIN I
[3]  
[Anonymous], 1981, Statistical Tables
[4]  
[Anonymous], [No title captured]
[5]  
[Anonymous], 1993, TROPICAL SOIL BIOL F, DOI [10.2307/2261129, DOI 10.2307/2261129]
[6]  
AVERY B.W., 1980, SOIL SURV TECH MONOG, V14
[7]   LOSS-ON-IGNITION AS ESTIMATE OF ORGANIC MATTER + ORGANIC CARBON IN NON-CALCAREOUS SOILS [J].
BALL, DF .
JOURNAL OF SOIL SCIENCE, 1964, 15 (01) :84-&
[8]  
BENDELOW VC, 1980, SOIL SURV TECH MONOG, V15
[9]  
BLACKSTOCK TH, 1997, OCCASIONAL S BRIT GR, V32, P150
[10]   Nutrient limitation in species-rich lowland fens [J].
Boeye, D ;
Verhagen, B ;
VanHaesebroeck, V ;
Verheyen, RF .
JOURNAL OF VEGETATION SCIENCE, 1997, 8 (03) :415-424