Global climate change has led to the nonlinear response of the radial growth of trees to climate change at high altitudes and high latitudes in the northern hemisphere, and the responses of different tree species on climate change due to differences in physiological and ecological adaptations are also significantly different. Therefore, we analyzed the response stability and growth trends and the sustainability of two dominant tree species Qinghai spruce (Picea crassifolia) and Chinese pine (Chinese pine) to climate change on the southern edge of the Tengger Desert. The main conclusions were as follows: 1) water stress was the main controlling factor of the two tree species by analyzing the correlations between the radial growth of two tree species and climate factors. 2) Qinghai spruce had a stable response to Standardized Precipitation Evapotranspiration Index (SPEI) in September of the previous year, and the unstable responses to the minimum temperatures in September, December of the previous year and May of the current year, as well as SPEI in June and July of the previous year and June of the current year; Chinese pine had the stable responses to SPEI in September and May of the previous year, and the unstable responses to the minimum temperatures in September, and December of the previous year and May and September of the current year, as well as SPEI in June of the previous year and March of the current year based on the comparing the response variations before and after the abrupt temperature changes and moving correlation function. 3) The basal area increment (BAI) of Qinghai spruce showed a significant downward trend, and that of Chinese pine showed a significant upward trend, which indicated the Qinghai spruce with shade-tolerant and shallow-roots was more severely restricted by climate warming and water stress. Therefore, we must pay more attention to the shade-tolerant and shallow-roots forest ecosystem and strengthen management and protection.

全球气候变化导致树木的径向生长对北半球的高海拔和高纬度地区的气候变化产生非线性响应，并且由于生理和生态适应的差异，不同树种对气候变化的响应也很明显不同。因此，我们分析了两种优势树种青海云杉（云杉云杉）和油松（油松）的响应稳定性和生长趋势以及可持续性。）以适应腾格里沙漠南部边缘的气候变化。主要结论如下：1）通过分析两种树木的径向生长与气候因素的相关性，水分胁迫是两种树木的主要控制因素。2）青海云杉对上年9月的标准降水蒸腾指数（SPEI）响应稳定，对上一年9月，12月和当年5月以及SPEI的最低气温响应不稳定在前一年的六月和七月以及当年的六月；在去年的9月和5月，松树对SPEI的响应稳定，而在去年的9月，12月和当年的5月和9月，最低温度的响应不稳定。以及去年6月和当年3月的SPEI，它通过比较温度突然变化前后的响应变化和移动相关函数来确定。3）青海云杉的基础面积增加（BAI）呈现出明显的下降趋势，而松木则具有显着的上升趋势，这表明具有耐荫性和浅根的青海云杉受到气候变暖和气候变化的更严格的限制。缺水。因此，我们必须更加重视耐荫，浅根的森林生态系统，加强管理和保护。3）青海云杉的基础面积增加（BAI）呈现出明显的下降趋势，而松木则具有显着的上升趋势，这表明具有耐荫性和浅根的青海云杉受到气候变暖和气候变化的更严格的限制。缺水。因此，我们必须更加重视耐荫，浅根的森林生态系统，加强管理和保护。3）青海云杉的基础面积增加（BAI）呈现出明显的下降趋势，而松木则具有显着的上升趋势，这表明具有耐荫性和浅根的青海云杉受到气候变暖和气候变化的更严格的限制。缺水。因此，我们必须更加重视耐荫，浅根的森林生态系统，加强管理和保护。