Land use, geomorphology and climate as environmental determinants of emergent aquatic macrophytes in boreal catchments

被引：0

作者：

Alahuhta, Janne ^{[1
,2
]}

Vuori, Kari-Matti ^{[3
]}

Luoto, Miska ^{[4
]}

机构：

[1] Univ Oulu, Dept Geog, FI-90014 Oulu, Finland

[2] Univ Jyvaskyla, River Basin Management Unit, Freshwater Ctr, Finnish Environm Inst, FI-40114 Jyvaskyla, Finland

[3] Univ Jyvaskyla, Res & Innovat Lab, Finnish Environm Inst, FI-40114 Jyvaskyla, Finland

[4] Univ Helsinki, Dept Geosci & Geog, FI-00014 Helsinki, Finland

来源：

BOREAL ENVIRONMENT RESEARCH | 2011年 / 16卷 / 03期

关键词：

WATER CATCHMENTS; VASCULAR PLANTS; RICHNESS; PATTERNS; LAKES; DIVERSITY; HABITAT; QUALITY; GROWTH; COVER;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

We studied the distribution patterns of emergent aquatic macrophytes in relation to land use, geomorphology and climate variables throughout Finland, using data collected from 848 catchments. Our results confirmed previous findings on climatic factors as major determinants of macrophyte distribution, but also catchment land-use, especially drainage ditch intensity, appear to be significant. Drainage ditch intensity had equal or higher contribution to emergent aquatic macrophytes as compared with that of geomorphology variables. To our knowledge this is the first analysis to show that ditch intensity increases emergent aquatic macrophytes at the national level. Overall, our results demonstrate that neither overgrowth problems nor natural distribution patterns of emergent aquatic macrophytes can be understood without analyzing the joint effects of land use, climate and geomorphology.

引用

页码：185 / 202

页数：18

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