PAST AND CONTEMPORARY CHANGES IN FOREST COVER AND FOREST CONTINUITY IN RELATION TO SOILS (SOUTHERN LATVIA)

作     者：Fescenko, Anda Nikodemus, Olgerts Brumelis, Guntis 

作者机构：Univ Latvia Fac Biol LV-1010 Riga Latvia Latvian State Forest Res Inst Silava LV-2169 Salaspils Latvia Univ Latvia Fac Geog & Earth Sci LV-1010 Riga Latvia 

出 版 物：《POLISH JOURNAL OF ECOLOGY》 (Pol. J. Ecol.)

年 卷 期：2014年第62卷第4期

页      面：625-638页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 09[农学] 0713[理学-生态学] 

基　　金：European Social Fund within the project "Support for Doctoral Studies at the University of Latvia" Latvian Council of Science Grant [514/2014] 

主　　题：afforestation ancient forest recent forest soil trophic groups 

摘      要：A set of medium-scale historical maps was used to reconstruct changes in spatial patterns of forest area during the last 220 years in an agricultural matrix of north-eastern Europe (Zemgale region, Latvia). Changes in total forest area by soils were determined, as well as the time period of continuous forest cover. Proportion of protected area for each soil trophic group was also calculated. Patterns of recent forest development differed between soil trophic groups. Afforestation occurred mainly on wet and poor soils in the 19th and 20th centuries, while the proportion of woodland area on fertile soils typical for nemoral forests was fairly stable. Only 1% of the fertile soil area has been covered by continuous forest for more than 220 years, and only 11% of them are protected. Nemoral deciduous forests cover only 15% of their potential natural vegetation area of forested eutrophic soils. Therefore, in regard to habitat protection that is representative of natural distribution of ecosystems, priority in conservation should be given to forests on fertile soils.