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发布时间:2024-03-19
焦点提醒:施用城市污泥堆肥后林业泥土中重金属的潜伏生态风险评价Potential Ecological Risk Assessment of Heavy Metals in the Forestry Lands of Application of Municipal Sludge Compost 作者: 要害词:重金属;潜伏生态风险评价;城市污泥堆肥;林业泥土;Heavy Metals; Potential Ecological Risk; Municipal Sludge Compost; Forestry Land 摘要: 在林业泥土施用城市污泥堆肥产物不会将重金属等污染物间接带入食品链,可是会改变泥土中重金属的含量,影响泥土情况。本文研究了施用城市污泥堆肥后梅花林与银杏林泥土中重金属含量的转变,并操纵潜伏生态风险评价法对其风险进行评价。评价成果注解:施肥一年后,梅花林和银杏林泥土的整体风险均属在低风险规模,Hg、Cd为风险的首要进献者。从各重金属的风险阐发,银杏林中Hg的污染已到达较高风险,且高施肥量的风险年夜在低施肥量。参比泥土布景值能够发觉,在林地或园林绿地施用污泥堆肥时,需要斟酌施肥场地泥土中重金属的布景值。 Application of municipal sludge compost in forestry land will not directly bring pollutants, such as heavy metals, into food chain, but it will change the content of heavy metals in soil. This paper studied potential environment risk of heavy metals in Ginkgo land and Plum blossom land after application of compost. The ecological risk index was used to evaluate the potential ecological risk of heavy metals in soil. The results showed that one year after fertilization, the Ginkgo and Plum lands had low ecological risk in general, where Cd and Hg were the main pollution factors. However the pollution of Hg in Ginkgo forest had reached high ecological risk. Moreover the ecological risk is higher when the application of compost amount is greater. Also, it can be found that soil background value is an important factor when applying sewage sludge compost in forest lands. 文章援用:翟羽佳, 封莉, 马博强, 张立秋. 施用城市污泥堆肥后林业泥土中重金属的潜伏生态风险评价[J]. 情况庇护前沿, 2014, 4(1): 41-46.http://dx.doi.org/10.12677/AEP.2014.41B007 参考文献
施用城市污泥堆肥后林业泥土中重金属的潜伏生态风险评价 Potential Ecological Risk Assessment of Heavy Metals in the Forestry Lands of Application of Municipal Sludge Compost