A Complete Collection of 100000 Whys
Fav十万个为什么
为什么春天树木会发芽？
1、春天温度升高，土壤解冻，树木得到足够的热量和水分，这些是发芽的基本条件。
2、春天日照时间变长，光照强度增加，树木通过光合作用制造更多能量，为发芽提供动力。
3、树木在冬季积累的养分在春天被释放出来，用于支持新芽的生长和发育。
4、春天的湿度适宜，树木的根系能够更有效地吸收水分，促进芽的生长。
5、树木的内部生物钟和激素调节机制使其在春天自动启动发芽程序。
总之，春天树木发芽是温度、光照、水分、养分和生物钟共同作用的结果，是树木适应季节变化的生命周期表现。
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