衡阳紫色岩山地绿化攻坚科技推广试验与示范

Science technology popularization and demonstration experiments on plantation in purple rock mountainous region of Hengyang City

衡阳紫色岩山地是湖南省造林最困难的地区之一。本项目通过4年研究,认为草木樨、芦竹、马桑、刺槐、柏木等种植材料生长较好;芦竹马桑柏木,草木樨马桑刺槐,封禁后补植马桑+刺槐等模式较成功;通过迳流场同步观测,项目区土壤侵蚀模数每年减少1000t以上。

The purple rock mountains region of Hengyang city was the one of the most diffcu lt plantation area in Hunan Province.Based on the plantation research in four years,the Melilotus spp,Arundo donax, Coriaria sinica,Robinia pseudoacacia,Cupres sus funebria were the suitable plants in the purple rock mountainous area. The planting with the Arundo donaxCoriaria sinicaCupress us funebria model, Melilotus sPCoriaria sinicaRobinia pseudoaca cia model,Coriaria sinicaRobinia pseudoacacia after rep lant model were the succeeded plantation methods.Based on the t est of runoff in the rock area,the soil erosion modulus in program area was decr ease more than 1 000t.