黑龙江省森林分布对气候变化的敏感性
首发时间:2010-01-12
摘要:随着全球环境变化研究的深入,人们逐渐认识到气候变化对陆地生态系统的主体——森林具有重要影响。以黑龙江省作为研究区,基于遥感、GIS技术和景观生态学理论,分别分析了1974-2003年黑龙江省气温、降水的变化,和1993、2003年该省森林分布及其景观格局的变化,同时结合相同时段(1993年和2003年)社会经济发展状况,探讨了该省森林对气候变化的敏感性。分析结果如下:1974-2003年,黑龙江省日平均气温、最高和最低气温上升趋势明显;降水量呈增长趋势的区域多于呈下降趋势的区域,总体上降水强度有增大趋势;全省森林面积总量在减少,10年间减少了7.89%;森林的斑块径粒变细,形状变得更加复杂;全省森林分布变化是在自然因素和人为因素共同作用下形成的,其中受温度变化的影响大于受经济驱动因素变化的影响。
For information in English, please click here
Sensitivity study of forest distribution to climate change in Heilongjiang province
Abstract:The important effects of climate change on forest ecosystems have been realized gradually along with the research on global environment. Based on remote sensing, GIS and landscape ecology theory, the change of temperature and precipitation from 1974 to 2003 in Heilongjiang Province was analyzed. At the same time, the sensitivity of forest to climate change was discussed through analyzing the change of forest distribution and landscape pattern and social-economic development status in 1993 and 2003 respectively. Main results were as follows. Daily average temperature, maximum temperature and minimum temperature has an evident increasing trend from 1993 to 2003. The area with increasing trend of precipitation is more than that with decreasing trend. As a whole, precipitation intensity has an increasing trend. The whole forest area is decreasing by 7.89% in the last 10 years. The patch diameter of forest is getting smaller and the shape is getting complex. The forest distribution change was just formulated under the combined action of artificial and natural influence. Especially, the temperature influence was more than economy influence.
Keywords: Heilongjiang Province forest climate sensitivity
论文图表:
引用
No.3883351181012632****
同行评议
共计0人参与
勘误表
黑龙江省森林分布对气候变化的敏感性
评论
全部评论0/1000