摘要
基于GIMMS NDVI数据、气象站点数据、植被类型图等相关资料,用长时间序列相关分析法对中国植被覆盖进行气候限制性分区.结果表明:西部干旱区主要属降水限制区,高纬度和高海拔区为气温限制区,东南沿海降水丰沛区为辐射限制区,荒漠戈壁、水域等属不显著区,还存在双因素限制区;中国植被覆盖具有明显的纬向和经向年内变化规律,1982—2006年植被覆盖变化复杂,总体趋势受国家相关政策影响,西北地区植被覆盖好转;受经济快速发展和人类活动影响,东南植被覆盖降低.中国植被生长的气候限制性因素规律性很强,需结合植被气候限制性因子进行区域生态恢复和农业生产工作.
Based on GIMMS NDVI data, meteorologic data, vegetation type map and other related materials, the climate restrictive partition of vegetation cover in China were done with the method of correlation analysis of long time series. The results indicate that the western arid areas are mainly restricted by precipitation. High latitude and high elevation areas are restricted by the temperature. The southeast coastal areas with rich precipitation are restricted by radiation. Desert, gobi, waters and so on are not restricted by any factor. There are areas restricted by double factors. There are obvious zonal and warp direction change rules for vegetation cover of China. From 1982 to 2006 ,vegetation cover change was complex, and the overall trend was better in northwest areas affected by the national related policy. The vegetation cover descend in the southeast areas affected by rapid economic development and human activities. Climate restrictive factors of vegetation growth was regular intensively in China, and regional ecological restoration and agricultural production should be done in combination with the climate limiting factors of vegetation.
出处
《陕西师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2013年第3期76-81,共6页
Journal of Shaanxi Normal University：Natural Science Edition
基金
国家自然科学基金资助项目(41071057
41001388)
国家社会科学基金资助项目(11BJY031)
陕西省自然科学基础研究计划项目(2012JM5011)
陕西省教育厅省级重点实验室项目(2010JS072)
关键词
植被覆盖
气候限制性分区
时空变化
vegetation cover
climate restrictive partition
temporal and spatial change
