硕士生导师
性别:女
所在单位:科学技术处
论文名称:The spatial and temporal change of cropland in the Scandinavian Peninsula during 1875–1999
发表刊物:Regional environmental change
关键字:Land cover changes ; Historical cultivation;
Empirical record ; Scandinavian Peninsula
摘要:Land use and land cover change (LUCC) has
emerged as an important issue of global change with significant influences on the geochemical cycle and regional
climate change. Understanding the historical changes of
land use and analyzing the environmental effects of LUCC
make such reconstructions important. Based on historical
statistics, this article reconstructs cropland area at the
municipality level (ha¨rad/kommun) in the Scandinavian
Peninsula during 1875–1999. The total acreage of cropland
increased 36.84 % during 1875–1930, kept stable during
1930–1950, and decreased 14.25 % during 1950–1999.
The croplands of Sweden and Norway both increased
before 1950 and changed in different ways during
1950–1999 when the cropland decreased by 19.79 % in
Sweden but increased by 9.63 % in Norway. The counties
in the south Scandinavian Peninsula owned most of the
cropland, with a cropland proportion of over 20 %, and
experienced relatively obvious cropland changes. Growth
centers with a rate of increase of over 5 % during
1875–1910 were found in Ska˚ne, Stockholm, the Uppsala
counties in Sweden, and the area around Oslo county in
Norway. The general cropland distribution showed almost
no change during this period, which mainly reflects the suitability of the natural conditions for agriculture. Multisocial factors co-impacted land use activities and induced
temporal and spatial variations of the cropland. These
factors included food supply, world trade, wars, agriculture
policies, the economic and political environment, urbanization, and national differences. Compared with the widely
used global land use dataset Historical Database of the
Global Environment (HYDE), this study shows different
cropland change curves before 1950. This article is a case
study showing that the hindcasting model of the HYDE
dataset has difficulty estimating multi-determined cropland
change in the Scandinavian Peninsula, and the empirical
study contributes to the improvement of the accuracy of
historical land use data at the regional level.
全部作者:Ulf Jansson,Yu Ye,Mats Widgren
第一作者:Bei-Bei L
卷号:13
期号:6
页面范围:1325-1336.
是否译文:否
发表时间:2013-04-23