【摘要】 湖南造林困难地类总面积达 10 0万hm2 。通过对 5个县 658hm2 试验示范林历时 9年的研究 ,解决了植被恢复技术问题。选出适宜的树、划种有马桑、芦竹、苦槠、牡荆和栓皮栎 5种 ,有发展前景的树种有柏木、铅笔柏和藏柏。选出了林分结构稳定 ,组成种长势好 ,可以肯定的有马桑十墨西哥柏浅层钙质幼年性岩性土等 6个配置模式。并提出和推广了撩壕整地和芦竹下挖上堆 ,施肥促长等造林技术。同时 ,定义了“三岩”造林困难地 ,提出了“三岩”造林困难地的生态环境特点。从土种的水平研究了树种与立地的适应性。更多还原

【Abstract】 There were 1 million hm 2 difficult afforestation land in Hunan province.Based on the research on experiment demonstration forest of 5 counties (658 hm 2) during 9 years,the problem of vegetation restore was sloved.Five species trees (Coriaria sinica,Aroundo donax,Castanopsis sclerophylla,Vitex nagundo and Quercus variabilis) that suitable for the difficult afforestation land.The Cupressus funebris,Sabina virginiana and Cuqrdssus torulosa were the develop prospect plant.The Cupressus funebris,Sabina virginiana and Cuqrdssus torulosa were plants with good prospect plant.The 6 disposing types including Coriaria sinica with Maxico cupressus type were selected,their stands are stable and growth well.The afforestation technologies of soil preparation,dig measure of Aroundo donax and fertilization were pointed out and populized.The difficult afforestation land of shale,limestone and calcium shale were defined and the ecological environment characteristics of that was pointed out.The adaptability between plant varieties and site on soil varieties were discussed in the paper.更多还原