大棚设施土壤养分和重金属状况研究  

VARIATION OF SOIL NUTRIENT AND HEAVY METAL CONCENTRATIONS IN GREENHOUSE SOILS

作　　者：李见云[1] 侯彦林[2] 化全县[3] 董县中[4] 

机构地区：[1]中国科学院生态环境研究中心 [2]中国科学院研究生院,北京100049 [3]土壤与农业可持续发展国家重点实验室(中国科学院南京土壤研究所),南京210008 [4]河南省南召县农业技术推广中心,河南南召474650

出　　处：《土壤》2005年第6期626-629,共4页Soils

基　　金：国家自然科学基金(项目编号:40071053)资助项目。

摘　　要：对山东寿光不同棚龄大棚土壤速效N、P、K及重金属Cu、Zn、Cd、Pb含量调查表明:随大棚棚龄的增加,速效N、P含量有显著的增加,其增加量与棚龄呈极显著正相关,速效K含量增加幅度不大,即N、P、K施用不均衡;重金属Cu、Zn、Pb含量随大棚棚龄的增加有一定的增加,Cd含量没有明显的规律性,但这几项重金属含量均比农田含量要高,表明在大棚高强度施肥及人为活动影响下,引入了重金属;农田及大棚重金属含量均较土壤背景值有一定程度的增加,但未超出国家环境质量标准。Investigation of soil available N, P, K and heavy metal concentrations in greenhouse soils was conducted in Shouguang, Shandong Province. Results showed that with age of the facilities, soil available N and P increased significantly in content and soil available K also did, but not so significantly, indicating imbalance of NPK ratio in fertilization. Heavy metals, such as Cu, Zn, Cd and Pb, were higher in greenhouse soil than in the open field, and increased with age of the greenhouse, except for Cd, which did not show a regular rising trend. Their concentrations, however, were still within the national criteria for quality of soil environment.

关 键 词：大棚 速效养分 重金属 土壤 

分 类 号：S15[农业科学—土壤学] X53[农业科学—农业基础科学]