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.
木本植物生长季延长相对草本植物表现显著，尤以春季物候期提前为主。
The arbor's phenology changes more than the herb's, especially with it's beginning earlier in spring.
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