摘要
以山东省济南市高新农业开发区为研究区，测定其土壤质量和土壤养分，利用单因子污染指数法进行评价，研究高新农业开发区土壤质量和土壤养分的状况，为实现其可持续发展提供科学依据。结果表明，（1）济南市高新农业开发区土壤质量总体良好，但土壤镉含量在0．072-0．695mg／kg之间，0-20cm和20--40cm土层均有20％的样品属于Ⅲ级，已对土壤构成污染。土壤砷含量在3．95-21．3mg／kg之间，O-20cm土层40％的样品属于Ⅱ级，10％的样品属于Ⅲ级，20-40cm土层60％的样品属于Ⅱ级，个别研究点轻度污染；（2）研究区土壤养分状况良好，但缺磷、少氮，有机质含量较低（7．78-15．62g／kg），尤其是有效磷属低下水平（1．2-17．9mg／kg），尚与绿色食品产地环境条件有一定差距。
To provide scientific basis to achieve sustainable development, soil samples were taken from Jinan Agricultural Development Zone in Shandong Province to evaluate soil quality and soil fertility with single factor contaminant index method. Results indicated that soil quality was generally fine, only with few soils gently contaminated with Cd and As in specific areas. Cd content was between 0.072 and 0.695mg/kg, and 20% samples of 0-20cm and 20-40cm layers belong to grade III. Arsenic content was between 3.95 and 21.3mg/kg, and 40% samples of 0-20cm layer belong to grade Ⅱ and 10% samples belong to grade Ⅲ, and 60% samples of 20-40cm layers belong to grade Ⅱ. Soil fertility was also generally fine, but there was lacking of phosphate and nitrogen, with low content of organic matter, especially low in available phosphate. The soil fertility did not yet meet the demand of green food producing area.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2009年第3期103-107,共5页
Environmental Science & Technology
