It is concluded that controlling the external pollution resource is the key factor to guarantee self-purificationability of river.
说明控制外源污染是河流保证自我修复能力的关键。
2
Water environment impact is related to the style and strength of the activities and with the water areas self-purificationability.
旅游活动对水环境的影响除了与活动方式、活动强度有关外,与水域面积、自净能力亦有显著的关系。
3
To improve the self-purificationability and pollution situation of river water, control the pollution load and ensure the river basic flow are two important ways.