the act of burying a body in a way that causes little damage to the environment, for example by not having the body embalmed (= treated with special chemicals), and by using a coffin made of natural materials, so that the coffin and body can decay naturally

There are very few natural burial sites in this area. 这一带自然葬的地点很少。

Natural burial is more environmentally friendly than traditional burial or cremation. 自然葬比传统的土葬或火葬更环保。