Abstract: This study was based on a team work of a part on the study of the delimitation cultivated forages in South China which was worked during last decade.Accor-ding to the results of field experiments of introductions and screens of culti-vated forages in different areas in this region,natural environmental condition particularly the climatic factors and the authors leves of evaluation,the au-thor suggests that those forages are divided into four groups and each of them adapted in a subregion.1.The first subregion is situated in the south of 25°N with low lands and hilly lands and of tropical and southern subtropical climates without winter.The cultivated forages are Macroptilium atropurpureum “DC” Urb.,Leucaena leu-cephala “Lam” de Wit,Stylosanthes guianensis CV Graham,Setaria anceps var.se-ricea CV kazungula,and Paspalum wettsteinii Hackel.2.The second subregion is located on 25°N in the areas of hilly lands and low mountains with a middle subtropical climate of annual average temperature of 17—20℃.The cultivated forages include Desmodium infortus “Mill” Urb.D.un-cinatum “Jacq” DC,Leucaena leucephala “Lam” de it,Paspalum wittsteinii Hackel,and P.urvillei Stends.3.The third subregion is located the middle elevation above 600—800 mind in-cluding the northern parts of Fujian,Guangdong provinces and Guanxi Outono-mous Region,with a long winter of four mouths above elevation of 1100m.The cultivated forages include Trifolium repens L.Lolium perenne L.and Dactylis glomerata L.4.The forth subregion is located in the southern part of yunnan province with a tropical and southern subtropical climate.The cultivated forages include Macroptilium atropurpureum “DC” Urb.,Stylosanthes guianesis CV.Graham,Paspalum wettsteinii Hackel and Pennisetum purpuveum Schumach.

摘要： 按照全国草种区划的部署,华南区包括闽,粤、桂、琼四省(区)和云南省的南部地区。总结和分析五十年代以后华南各省(区)有关单位在牧草引种驯化和筛选中取得的成果和经验。对华南的自然环境,气候分区和土壤类型,主要草种的筛选依据及各草种的特性、适应性和生产性能进行了深入研究。结合主要草种小区补充重复试验结果和生产调查,所有结果都显示适应华南种植的是热带栽培牧草。只有北和西北部边缘中山地区(海拔600—800米以上)适宜种植温带栽培草种。经综合评价再按照作者提出的分区原则、指标和亚区分区方法,华南区的主要多年生栽培草种可以划分为四个亚区:①闽、粤、桂南部和海南全部(热带和南亚热带)丘陵平原大翼豆、银合欢、格米姆柱花草、卡松古鲁狗尾草、宽叶雀稗和象草亚区;②闽、粤、桂北部(中亚热带)低山丘陵绿叶山蚂蝗,银叶山蚂蝗、银合欢、宽叶雀稗和小花毛花雀稗亚区;③闽、粤、桂北部和西北部中山(中亚热带山地)白三叶、多年生黑麦草和鸭茅亚区;④滇南(热带和南亚热带)低山丘陵大翼豆、格拉姆柱花草、宽叶雀稗和象草亚区。对各亚区的自然概况和草坡特点作了简述。

关键词: 主要多年生栽培草种, 草种区划, 草坡资源, 气候土壤条件