摘要
通过野外考察和实验分析,测定了敦化市不同园参地土壤中的重金属含量和肥力指标,并对土壤重金属污染特征和土壤肥力质量进行了评价.结果表明:(1)Cr、Cu、Ni和Pb的含量均在中国土壤背景值范围内;Zn的含量超出中国土壤背景值,但在吉林省土壤背景值范围内,这与长白山地区独特的地质背景有关.(2)根据国家《土壤环境质量标准》二级标准,仅D2监测点土壤重金属达到轻度污染,其他监测点均属清洁.(3)长白山地区的园参地为轻微生态危害,土壤肥力达到中等以上水平,基本符合无公害人参生产要求;土壤中磷元素向域内水体流失的风险较大,应该引起重视.
Through fieldwork and experimental analysis ,we determined the content of heavy mental and fertili-ty indicators in soil of different ginseng plantation in Dunhua city ,and evaluated the feature of heavy metal pollution and the fertility quality .The results show that ：1） The content of Cr、Cu、Ni and Pb in soil were in line with soil background value of China .The content of Zn was out of the range ,but it was still in the provin-cial level ,as it was related to the unique geological background of Changbai Mountain area .2） According to the second level of GB15618-1995 ,only D2 monitoring point was slightly polluted while the others were clean . 3） The ginseng plantations in Changbai mountain area were at slight ecological risk and the fertility level was in line with medium or over medium level which was still available to accord with the requirement of pollution-free .Meanwhile ,there was a great risk of phosphorus loss from soil to water which we should pay more at-tention to .
出处
《延边大学学报（自然科学版）》
CAS
2014年第1期89-94,共6页
Journal of Yanbian University（Natural Science Edition）
基金
国家自然科学基金资助项目(41361015
41071333)
关键词
长白山地区
园参地
重金属
土壤质量
土壤肥力
敦化市
Changbai Mountain area
ginseng plantation
heavy metal
soil quality
soil fertility
Dunhua city
