Eco-Toxicological Effects of Typical Petroleum Pollutant Naphthalene on Corn in Loess Soil

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Eco-Toxicological Effects of Typical Petroleum Pollutant Naphthalene on Corn in Loess Soil

更新时间：2025-07-09

- Eco-Toxicological Effects of Typical Petroleum Pollutant Naphthalene on Corn in Loess Soil
- Vol. 44, Issue 11, Pages: 119-124(2010)
- 作者机构：
  
  西安交通大学环境科学与工程系,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： X171.5
- Online First：10 November 2010，
  
  Published：2010
- 稿件说明：
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Eco-Toxicological Effects of Typical Petroleum Pollutant Naphthalene on Corn in Loess Soil[J]. 2010, 44(11): 119-124.
DOI：

Eco-Toxicological Effects of Typical Petroleum Pollutant Naphthalene on Corn in Loess Soil[J]. 2010, 44(11): 119-124. DOI：

摘要

通过无土栽培和盆栽试验

研究了石油中萘对陕北石化区黄土种植玉米的各项生理和生长发育指标的污染生态效应

揭示了石油化学品通过生态毒理学机制对黄土典型农作物产生的危害.无土栽培试验结果表明

单位质量河沙中萘对玉米出芽率、根伸长的半抑制浓度D

分别为0.488、0.487 g/kg; 盆栽试验结果表明

单位质量黄土中萘对玉米出芽率、根伸长、鲜重、株高、叶绿素a和叶绿素b的半抑制浓度D

分别为4.21、1.53、3.99、1.82、3.33、3.29 g/kg.各生理指标对萘污染的敏感程度由大到小依次为根伸长-株高-叶绿素b-叶绿素a-鲜重-出苗率.当土壤中萘、黄土质量比小于0.25 g/kg时

对玉米的生长发育具有一定的促进作用

而当萘、黄土质量比大于0.25 g/kg时

对玉米的生长具有明显的抑制作用

该抑制作用随着萘浓度的提高而增强.

Abstract

The eco-toxicological effects of typical petroleum pollutant naphthalene on corn

a major crop on loess soil in northern Shaanxi province

were studied by a soilless cultivation experiment and a pot-planting experiment. The toxic effects on the physiological and growing characteristics of corn by different concentration of naphthalene were explored to confirm that the environmental quality of the agricultural production in this region may be adversely affected by the eco-toxicological effects of the typical petroleum pollutants. The results of the soilless cultivation experiment show that the ID

(inhibitory concentration 50%)of naphthalene in sand on the corn germinating rate and the root elongation was 0.488 g/kg and 0.487 g/kg

respectively. The results of the pot-plan

ting experiment indicate that the ID

of naphthalene in loess soil on the germinating rate

the root elongation

the fresh weight

the plant height

chlorophyll a and chlorophyll b was 4.21 g/kg

1.53 g/kg

3.99 g/kg

1.82 g/kg

3.33 g/kg and 3.29 g/kg

respectively. In addition

the growth of corn was promoted when the concentration of naphthalene was lower than 0.25 g/kg but was inhibited when the concentration was higher than 0.25 g/kg

and the inhibitory effect increased with the increase in the concentration of naphthalene.

关键词

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