平朔安太堡露天矿排土场土壤种子库研究  

Features of Soil Seed Bank at Dump of Antaibao Opencast Mine

作　　者：王改玲[1] 白中科[2] 郝明德[1] 

机构地区：[1]中国科学院水利部水土保持研究所,陕西杨陵712100 [2]山西农业大学资环学院,山西太谷030801

出　　处：《水土保持学报》2003年第6期178-180,共3页Journal of Soil and Water Conservation

基　　金：国家自然科学基金(40971077);国家教育部科技重点项目(00149)部分研究内容

摘　　要：采用萌发试验法研究了安太堡露天矿排土场土壤种子库特征,结果表明:排土场土壤中有活性种子存在,且以1年生植物为主,可为植被恢复提供物质基础;随着复垦时间的延长,土壤微环境改善,种子库的组成种类增加,数量增多,幼苗生长加快;复垦10年的沙棘、草地、刺槐林地,土壤种子库组成种类较新排土区明显增多,且优势种因复垦模式不同而异;未复垦的空旷区有利于种子传播,但土壤微环境差,不利于种子萌发,幼苗生长较差。Using germination test, features of soil seed bank at the dump of Antaibao opencast mine were studied. As the result, Viable seeds, mainly of anniversary species were detected, which is the material base for re-vegetation. As the reclamation is prolonged, soil condition is improved, species increased, and the growth of seedling become better. Compared with the new land, species is increased greatly after the land is reclaimed by Hippophae rhamnoides, robinia pesudoacacia and grassland for 10 years. Also, the most abundant species is different due to the different vegetation. New land is good for seeds invasion, however, it is bad for seed germination and seedling growth.

关 键 词：土壤种子库 排土场 安太堡露天矿 

分 类 号：Q948.113[生物学—植物学]