干旱(水分亏缺)和高温是我国北方沙漠化地区植物生长季的两个主要环境胁迫因子。
Drought (water deficit) and high temperature are two major constraint factors in the growing season in the desert area of Northern China.
从两个区域年表对各自气象站气候因子的响应可以看出，树木的生长都主要受到生长季前期和生长季早期降水量的支配。
From tree growth response to climate factors in the two regions, we can be informed that tree growth is mainly controlled by both the pre - and the early time of growing season.
研究表明：影响植物物候期的主要气候因子为气温，随气温升高，植物生长季延长。
Research indicated: the main climate factor affecting plant Phenology is the temperature. With the temperature rising, plant's growing period extends.
主要研究结论如下：（1）1951-2008年，年和生长季的日照时数及日照百分率均呈减少趋势。
The main research achievements are as follows:There was a decreasing trend of the sunshine duration and sunshine percentage of year and growing season from 1951 to 2008.
生长季的长度主要受早春气温的影响，也受秋末气温一定的影响。
Air temperature in early spring mostly influences growing seasons, and air temperature in late autumn does in a certain degree.
建立了主要作物生育期钟模型模式，反映作物生长发育随气候的动态变化，并将生育期与气候生长季进行对比分析，实现生长季适应性评估；
"clock" models for growing period of crops were established, which reflect dynamic change in growing period of crops with climate, and analyze the crop requirements to climate tondition;
从整个生长季来看，春季该林分蒸腾主要受太阳净辐射和大气温度的抑制，在夏季土壤水分充足时，太阳净辐射仍是控制沙地杨树人工林的蒸腾活动主要因子。
Throughout the growing season, low Rn and air temperature surpressed stand transpiration during spring. Such control of Rn persisted into summer when sufficient soil water was availiable.
从整个生长季来看，春季该林分蒸腾主要受太阳净辐射和大气温度的抑制，在夏季土壤水分充足时，太阳净辐射仍是控制沙地杨树人工林的蒸腾活动主要因子。
Throughout the growing season, low Rn and air temperature surpressed stand transpiration during spring. Such control of Rn persisted into summer when sufficient soil water was availiable.
应用推荐