牛粪在藏语中称为“久瓦”。在高原牧区,“久瓦”作为烧茶做饭的燃料已有千年的历史。生活在雪域高原的广大农牧民至今视其为最佳的燃料。“久瓦”除了做燃料外,在藏民族日常生活中还有着特殊的用途与含义,藏民族传统生活与“久瓦”息息相关。甚至有人认为“久瓦”里熔铸了藏民族独特的人文色彩、风俗民情;体现着民族心理和审美情趣等深层内涵。这种说法虽有些夸张,但仔细品味,也不无道理。藏族人素有这样的说法:阿 Cow dung is called “longwa” in Tibetan. In the plateau pastoral areas, “long tile ” as a burning tea cooking fuel has a thousand years of history. The vast herds of peasants and herdsmen living in the snowy plateau have so far regarded it as the best fuel. In addition to being a fuel, the “long-watts” have special purposes and meanings in the daily life of the Tibetan people. The traditional Tibetan life is closely related to the “long-watt”. Some people even think that “Longwa ” casts the unique humanistic features of the Tibetan nation, customs and sentiments, and embodies the deep connotation of national psychology and aesthetic taste. Although this argument is somewhat exaggerated, but carefully savor, it is not unreasonable. Tibetan people have this saying: Ah