期刊论文

Liao, B.

中文

环境科学学报

0253-2468

2017

37

4

1508-1514

10.13671/j.hjkxxb.2016.0284

(NBCH2016-6):农业部财政部科研专项 (41501344):国家自然科学基金 (No.2006180):湖南省重点学科建设项目 (NBCH2016-6):Supported by the Special Fund for Ministry of Agriculture and Finance (41501344):the National Natural Science Foundation of China (2006180):the Key Discipline Construction Projects in Hunan Province

本校为第一且通讯机构

通过盆栽种植实验研究了pH值为3.5~6.5的灌溉水对稻田土壤pH值、土壤Cd生物有效性以及2种水稻品种各部位Cd含量的影响.结果表明:①不同pH值灌溉水对土壤pH值影响显著.灌溉水pH为3.5-6.5的处理下,湘晚籼土壤pH值下降了0.6~0.3个单位,威优46号土壤pH值下降了0.7~0.4个单位.②随着灌溉水pH值的升高,土壤交换态和TCLP提取态Cd含量(生物有效性)均有降低的趋势,但TCLP提取态Cd含量不显著.③随着灌溉水pH值从3.5上升到6.5,湘晚籼12号水稻植株各部位Cd含量均逐渐下降,而威优46号水稻植株各部位的Cd含量逐渐上升.与pH=3.5处理相比,浇灌pH值为4.5-6.5的灌溉水,湘晚籼12号根系、茎叶、谷壳和糙米中Cd含量分...

The effects of different pH values of irrigation water (pH=3.5, 4.5, 5.5 and 6.5) on soil pH values, soil Cd bioavailability and Cd contents in different tissues of two rice varieties (XWX12, Xiangwanxian 12, a conventional rice, and WY46, Weiyou 46, a hybrid rice) were studied through a pot experiment. The results showed that pH values of irrigation water had significant effects on soil pH values, and the soil pH values decreased by 0.6~0.3 units for XWX12 and by 0.7~0.4 units for WY46 with pH values of irrigation water increasing from 3.5 to ...