游牧的生活方式、社会.屯门农牧同业促进会国家鼓励在农、林、牧区和城镇种草，促进畜牧业的发展，改善生态环境。
The state shall encourage the growing of grass in farming , forestry and pastoral areas and in cities and towns so as to promote the development of animal husbandry and improve the ecological environment .
林城镇