金矿迹地生态林营造技术规程关键内容的验证性研究

摘要

Verified Experiment of Key Technical Regulations for Ecological Afforestation on Gold Mined-land is studied on. Con-clusions:1) Direct seeding afforestation on mechanical gold mined-land is impossible, different land site with different means. 2) There is no rules of soil chemical characteristics in different situa-tions, suitable measures of soil improving is necessary, avoiding Cr sensitive species planting. 3)Soil structure is simple and fragile with flood damaging, freezing injury is more than normal forest. 4) Fertilization thinking about eco -physiological characteristics is possible and necessary. 5) Using of water retaining agent, edible fungi sack and field flating is depend on the means situation. 6) Herb is used determined by its ecological functions.%本项研究对金矿迹地生态林营造技术规程各项条款中出现的关键问题进行了验证性研究。结论如下：1）机械作业金矿迹地无法进行直播造林，不同采金方式采取不同造林方式；2）金矿迹地土壤化学指标无明显的时间和空间规律，造林时要采取因地制宜的土壤改良措施，同时避免Cr敏感植物的应用；3）金矿迹地土壤结构十分脆弱洪涝灾害严重，植被冻害比林分结构完整的区域严重；4）要根据树种的生理生态特性及造林地土壤情况进行施肥处理；5）视立地条件的困难程度采取使用保水剂和食用菌废料的处理方式，根据需要进行造林地平整化改造；6）对于生态林中草本的选择要充分考虑草本的生态学作用。