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Environmental issues

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Loss of plant species richness and habitat connectivity in grasslands associated with agricultural change in Finland

Article Abstract:

The dramatic loss of semi natural grasslands due to the socio-economic factors during the 20th century in Finland, Europe is described. The agricultural production which is linked to landscape fragmentation and species diversity shows that the termination of grazing on semi natural grassland causes significant changes in landscape structures and a decline in the number of vascular plant species.

Author: Pykala, Juha, Rekolainen, Seppo, Luoto, Miska, Aakkula, Jyrki
Publisher: Royal Swedish Academy of Sciences
Publication Name: Ambio
Subject: Environmental issues
ISSN: 0044-7447
Year: 2003
Europe, Forecasts, trends, outlooks, Science & research, Research, Forecasts and trends, Influence, Market trend/market analysis, Grasslands, Grazing

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Different responses of plants and herbivore insects to a gradient of vegetation height: An indicator of the vertebrate grazing intensity and successional age

Article Abstract:

A simultaneous analysis of the species richness of vascular plants and their insect herbivores in semi-natural grasslands with varying grazing intensities was conducted. The results showed that grazing management leads to a decrease in the species richness of the grassland insects, with a notable increase in the species density and richness of vascular plants.

Author: Pykala, Juha, Luoto, Miska, Poyry, Juha, Paukkunen, Juha, Raatikainen, Katja, Kuussaari, Mikko
Publisher: Blackwell Publishers Ltd.
Publication Name: Oikos
Subject: Environmental issues
ISSN: 0030-1299
Year: 2006
Goods & services distribution, Channels of Distribution, Food and nutrition, Distribution, Phytophagous insects, Company distribution practices, Vascular plants

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Modeling combined effects of forestry, agriculture and deposition on nitrogen export in a northern river basin in Finland

Article Abstract:

Research indicates that nitrogen export in Finland's Oulujoki river basin is primarily affected by agriculture, constituting 17% of total nitrogen export with a range of 8% in the uppermost region of the basin and 38% in the lowermost region. Forestry management contributes 16% of the total export, with 11% in the uppermost and 24% in the lowermost regions.

Author: Lepisto, Ahti, Kenttamies, Kaarle, Rekolainen, Seppo
Publisher: Royal Swedish Academy of Sciences
Publication Name: Ambio
Subject: Environmental issues
ISSN: 0044-7447
Year: 2001
Statistical Data Included, Models, Environmental impact analysis, Environmental policy, Soils, Soil nitrogen, Forest ecology, Agricultural ecology, Sedimentation and deposition, Deposition (Geology)

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Subjects list: Finland, Environmental aspects
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