广西中东部9县区农田土壤Se输入通量研究
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陈雪, 杨忠芳, 陈岳龙, 杨琼, 王磊, 韦雪姬
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Selenium input flux in farmland soil of 9 counties in the middle east of Guangxi
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Xue CHEN, Zhong-Fang YANG, Yue-Long CHEN, Qiong YANG, Lei WANG, Xue-Ji WEI
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表2 研究区Se及重金属元素3外源输入通量g/(hm2·a)
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Table 2 The 3 outside-sourced input fluxes of Se and heavy metals in study areag/(hm2·a)
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地区 | 输入途径 | As | Cd | Cr6+ | Hg | Pb | Se | | 大气干湿沉降 | 7.9 | 1.4 | 126 | 2.6 | 37 | 3.2 | 北流市 | 施肥 | 11 | 0.03 | 3.5 | 0.01 | 1.3 | 0.04 | | 灌溉水 | 0.017 | 0.000 | 0.024 | 0.000 | 0.008 | 0.007 | | 大气干湿沉降 | 7.5 | 1.1 | 111 | 2.1 | 30 | 3.1 | 博白县 | 施肥 | 5.4 | 0.28 | 7.2 | 0.04 | 2.2 | 0.07 | | 灌溉水 | 0.024 | 0.000 | 0.024 | 0.000 | 0.003 | 0.005 | | 大气干湿沉降 | 7.5 | 1.3 | 112 | 1.0 | 33 | 2.8 | 兴业县 | 施肥 | 13 | 0.31 | 5.9 | 0.10 | 57 | 0.50 | | 灌溉水 | 0.020 | 0.001 | 0.024 | 0.001 | 0.007 | 0.002 | | 大气干湿沉降 | 11 | 1.7 | 72 | 1.6 | 62 | 3.0 | 港南区 | 施肥 | 21 | 0.22 | 16 | 0.05 | 4.3 | 0.25 | | 灌溉水 | 0.025 | 0.000 | 0.024 | 0.000 | 0.001 | 0.001 | | 大气干湿沉降 | 6.7 | 1.3 | 77 | 1.9 | 72 | 5.6 | 平南县 | 施肥 | 5.5 | 0.12 | 6.2 | 0.02 | 1.3 | 0.05 | | 灌溉水 | 0.019 | 0.000 | 0.012 | 0.000 | 0.005 | 0.001 | | 大气干湿沉降 | 13 | 4.0 | 123 | 4.2 | 87 | 15 | 鹿寨县 | 施肥 | 6.2 | 0.18 | 19 | 0.02 | 2.4 | 0.11 | | 灌溉水 | 0.008 | 0.000 | 0.024 | 0.000 | 0.002 | 0.002 | | 大气干湿沉降 | 14 | 4.3 | 123 | 5.1 | 162 | 15 | 临桂区 | 施肥 | 8.6 | 0.10 | 8.6 | 0.10 | 3.0 | 0.22 | | 灌溉水 | 0.006 | 0.000 | 0.024 | 0.000 | 0.001 | 0.001 | | 大气干湿沉降 | 5.8 | 21 | 58 | 2.9 | 90 | 2.5 | 象州县 | 施肥 | 3.3 | 0.10 | 8.9 | 0.01 | 0.95 | 0.08 | | 灌溉水 | 0.017 | 0.000 | 0.024 | 0.001 | 0.001 | 0.002 | | 大气干湿沉降 | 13 | 4.8 | 114 | 3.4 | 97 | 6.8 | 兴宾区 | 施肥 | 3.6 | 0.11 | 7.7 | 0.03 | 1.8 | 0.07 | | 灌溉水 | 0.008 | 0.000 | 0.024 | 0.001 | 0.001 | 0.002 |
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