摘要
通过对榆林沙区植被恢复建设调查和大量文献资料的查阅,分析了近50年来榆林沙区植被建设所取得的成就以及适合该区发展的模式,即生态工程发展模式和农林复合经营模式;指出了植被建设过程中存在的主要问题,即土地利用类型复杂,沙漠化土地严重和资源分布不均,林业发展不平衡等;提出了相应的解决方法和主要应对措施,即积极引进和推广抗旱优良林草新品种,搞好抗旱节水造林新材料、新技术的示范推广。
Based on the investigation of the vegetation restoration in Yulin sandy area and literature review, the achievements in vegetation construction in desert region of the last 50 years in Yulin was described and the development models within, ecological engineering and agroforestry economy models. Problems like complex land use, serious desertification, uneven distribution of resources, and imbalance of forestry development were pointed out. Corresponding solutions and measures were put forward to solve the problems, that is, to actively introduce and diffuse new drought--resistant varieties of tree and grass; conduct demonstration of new materials and new techniques in drought--resistant afforestation and water-- saving irrigation.
出处
《陕西林业科技》
2008年第4期11-16,共6页
Shaanxi Forest Science and Technology
关键词
榆林沙区
植被建设
生态工程
优化模式
Yulin sandy area
vegetation construction
ecological engineering
optimized model
