| environ. |
environmental impact of recreation Recreation and tourism are often accompanied by extensive damage to the environment. Aquatic ecosystems are particularly vulnerable to the effects of an increased tourist trade and the resultant building of hotel accommodations, sewage disposal works, roads, car parks and landing jetties on banks and coastlines; and the increased angling, swimming, water skiing, shooting or use of motor-boats in the water body. These all produce direct deleterious effects when conducted on a massive scale, including shore damage, chemical changes in the water, and sediments and biological changes in the plant and animal communities (休闲和旅游总伴随着对环境的过度伤害。水生生态系统尤其易被持续增加的旅游业和伴随的旅馆、污水、道路、停车场和在河岸和海岸线上的防波堤所影响；以及在水体中增加的垂钓、游泳、划水、打猎、和水上船只。当规模渐大时，这些活动都会产生直接危害，包括海岸危害、改变水中和沉积物中的化学成分以及对于植物和动物群落的改变。) |
