摘要
气候变化对森林景观产生深远的影响,景观边界对气候变化反应尤其敏感。论文采用多元统计分析、遥感和地理信息系统相结合的方法,来定量分析长白山景观边界的变化与气候变化的关系。结果表明:可以利用长白山自然保护区经度、纬度和海拔高度对现存11个气象因子进行空间差值。1975-1997期间,苔原分布的海拔上、下限经历了一个先上升后下降的过程;岳桦(Betula ermanii)分布的海拔上限也有一个先上升后下降的过程,岳桦分布的海拔下限在降低;云杉(Picea koraiensis)冷林(Abiessquamata)分布的海拔上限在上升,但其分布的海拔下限的变化没有明显的规律,苔原边界和岳桦分布的海拔上限的变化可能与1月均温和年降水量的变化有关;岳桦分布的海拔下限和云冷杉林分布的海拔上限可能与7月均温有关。
Climate change becomes a dispute fact, and it will influence the forest landscape in future. Landscape boundary is more sensitive to climatic change than others. We take multivariate statistical analysis, remote sensing and geographic information system, to quantitatively analyze the relationship between landscape boundary and climatic change. Results indicate that we can take the longitude, latitude and altitude to study space interpolation for 11 meteorological factors. During 1975-1997, the tundra distribution upper limit and lower limit elevation presented an increased and then decreased tendency. Betula ermanii distribution upper limit also presented an increased and then decreased tendency; however, B. ermanii distribution lower limit showed a decrease tendency. The cold fir distribution upper limit presented an inci＇ease tendency, but the distribution lower limit of cold fir had no obvious change tendency. The upper limit boundary of tundra and B. ermanii distribution change depended on mean January temperature and annual precipitation; the lower limit boundary ofB. ermanii and upper limit boundary of cold fir depended on mean July temperature.
出处
《生态科学》
CSCD
北大核心
2013年第2期206-211,共6页
Ecological Science
关键词
森林景观
边界
气候变化
长白山
forest landscape
boundary
climate change
Changbai Mountain
