When cultivated and stripped of their dense vegetative cover, soils of the humidtropics quickly lose their fertility.
当将厚密的植被除去并耕种时，潮湿热带地区的土壤就会迅速失去其肥力。
2
The fewest signals of selection were seen among people who live in the humidtropics, the ecoregion where the ancestral human population evolved.
最少观察到遭到自然选择的是生活在潮湿热带气候地区的人们，这些地区是人类祖先的栖息地。
3
Natural exposing tests in humidtropics atmosphere environment and accelerated ageing tests for 210 coat test samples of domestic automotives are carried out.