摘要
研究比较了铅锌冶炼污染区光板地种植泡桐和狗牙根进行人工植被重建前后土壤物理性质、养分蓄存、微生物及酶活性的改变。结果表明 :采用人工植被重建措施后 ,光板地的粉粒、粘粒和物理性粘粒含量增加 ,土壤细腻化程度提高 ;总孔隙度和有效孔隙增加 ;土壤容重趋向正常 ;土壤含水量增加 ;有机质与总量NPK均大幅度增加 ;微生物数量增加 ,酶活性增加 。
Studies on soil physical properties, soil moisture, organic matter, total and available NPK, soil microbes, soil enzyme activity in a barren land and a plant revegetation land on which Paulownia Fortunei Hemsl. and Cynodon Dactylon were grew in the vicinity of Shaoguan smelter located at north of Guangdong province were conducted to evaluate the potential of plant recovery of improving degraded soil quality and to put forward suggestions for revegetation in other similarly contaminated areas. The result showed that the two plants were in a good development and three plants including Drypteris Championii (Benth.) C. Chr.ex Ching, Mussaenda Pubescens Ati.f. and Digitaria Ciliaris were naturally recolonized and that all above mentioned items were improved with one exception of the content of soil sand, and hence, it is feasible to use Paulownia Fortunei Hemsl. and Cynodon Dactylon as revegetation plants in barren land in the Pb/Zn smelter area.
出处
《湖南有色金属》
CAS
2004年第5期29-32,共4页
Hunan Nonferrous Metals
