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长白山地区是气候敏感区和生态环境脆弱带,植被的季相变化明显。冬季,长白山受强大的西伯利亚和蒙古冷高压影响,西北季风漫长凛冽,最冷月气温在-14℃～-18℃。夏季受东南季风的影响,短暂、温暖多雨,最热月气温20℃～23℃。因此,长白山土壤在一年内有很长时间冻结,冻层厚度达1.0米~2.5米,植物生长期短,作物只能一年一熟。在全球气候变化的影响下,长白山地区近10年植被生长季开始日
The Changbai Mountain area is a climate-sensitive area and a fragile ecological environment with obvious seasonal changes of vegetation. In winter, Changbai Mountain is affected by the mighty cold pressures of Siberia and Mongolia. The northwest monsoon is long and cold with the coldest month of -14 ℃ to -18 ℃. Summer monsoon by the southeast, short, warm and rainy, the hottest month temperature 20 ℃ ~ 23 ℃. Therefore, the soil in Changbai Mountain has a long period of freezing within a year, the thickness of the frozen layer is 1.0m ~ 2.5m, the plant growth period is short, and the crop can only be cooked once a year. Under the influence of global climate change, the beginning of vegetation growth season in Changbai Mountain in the past 10 years