光照强度与三线闭壳龟活动的关系

通过实验证明光照强度对三线闭壳龟的活动有很大的影响，在适宜三线闭壳龟生长的温度范围内，当光照强度在４００ｌｘ以下时，它能出洞外正常地活动；当光照逐渐增强时，其洞外活动逐渐减弱；当光照强度超过５０００ｌｘ时，则停止洞外的一切活动，躲进洞穴蛰息。采用人工方法改变环境条件，降低光照强度，可延长三线闭壳龟的洞外活动时间，加速它的生长。

Relationship between Activity of the Cuora trifasciata and Intensity of Illumination

The experiments demonstrate that intensity of illumination has a great influence on the activity of Cuora trifasciata when the temperature is proper for the Cuora trifasciata to grow,the animal act out of cave vigorously under 400 lx of illumination, between 400 to 5 000 lx of illumination, the action of the animal out of cave is reduced gradually with the increase of the illumination.They stop acting out of cave completely and hide in the cave to rest above 5 000 lx of illumination.In artificial controlled low illumination and change the living condition,the animal can act out of cave longer and grow faster than normal.