Cadmium Accumulation in Vegetable Plantation Land Soils under Protected Cultivation: A Case Study
Cadmium Accumulation in Vegetable Plantation Land Soils under Protected Cultivation: A Case Study
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DOI：
10.1080/00103620902960658
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发表时间：
2009-06
影响因子：
1.8
通讯作者：
Lianqing Li;Zeng Xi-bai;Bai Lingyu;Mei Xu-rong;Yang Jia-bo;Hu Liu‐Jie
中科院分区：
文献类型：
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作者：
Lianqing Li;Zeng Xi-bai;Bai Lingyu;Mei Xu-rong;Yang Jia-bo;Hu Liu‐Jie
对山东省寿光市日光温室蔬菜种植园地土壤中镉的积累进行了研究。共采集了128个不同农田土壤样品。土壤样品用过氧化氢（H2 O2）和硝酸（HNO 3）混合物消化，消化液用电感耦合等离子体质谱（ICP-MS）检测镉含量。结果表明，设施菜地土壤中Cd含量显著高于露地菜地、棉花地、小麦/玉米地和未开垦土壤。镉浓度随种植年限的增加而增加，在温室菜地中镉的累积速率为0.0289 mg Cd kg− 1 y −1。畜禽粪便等有机肥是温室蔬菜地Cd积累的主要来源，有机肥的平均输入量为70.7 g Cd ha−1 y−1。因此，减少有机肥中Cd输入温室土壤是必要的。
Cadmium (Cd) accumulation in vegetable plantation land soils under a greenhouse was investigated in Shouguang County, Shandong Province, China. A total of 128 soil samples were collected from different agricultural fields. Soil samples were digested with the mixture of hydrogen peroxide (H2O2) and nitric acid (HNO3), and Cd content in the digested solution was detected with inductively coupled plasma–mass spectrometry (ICP‐MS). The results indicated that the concentration of Cd in the greenhouse vegetable field was significantly more than that in open vegetable field, cotton field, wheat/maize field, and uncultivated soils. Cadmium concentration increased with the cultivation age, and the related accumulation rate was 0.0289 mg Cd kg−1y−1 in a greenhouse vegetable field. Organic fertilizer such as livestock manure was the major source for Cd accumulation in the greenhouse vegetable field with the average input amount of 70.7 g Cd ha−1 y−1 from organic manure. Thus, a decrease of Cd input from organic fertilizer into greenhouse soils is necessary.