| 摘要: |
| 在杨树、泡桐和油松林地上施用不同量污泥一年后，供试树木在树高和地径的生长上随污泥施用量的增加而增加；土壤0～20cm的理化性质也起了有益的变化；土层100～120cm中硝态氮的含量均不大于30mg/kg，未引起地下水的污染；重金属均累积于土壤表层（0～20cm），未向下层迁移。 |
| 关键词: 污泥，林地，生长响应，硝态氮，重金属 |
| DOI： |
| 分类号:S753.532 |
| 基金项目: |
|
| The Effects of Xian Sewage Shudge Applied to the Forest Lands |
|
Zhang Tianhong Xue chengze
|
| Abstract: |
| After the sludge applied to poplar (populus),paulownia (Paulownia fortunei) and chinese pine (pinus tabulaefrmis) in the forest lands for one year,the growth
in height and ground diameter of the testing trees increased with a rise in the amount of
sludge put;the physical and chemieal behaviors in 0～20cm soil layer had a beneficial
change;the nitrate content between 100～120cm soil layer was no less than 30mg/kg
without causing pollution to the underground water;and heavy metals accumulate in the
0一20cm surface soil layer without migrating downward into deep soil layer. |
| Key words: sludge,forest land,growth response,nitrate,heavy metal |
