调查评价的土壤元素累积趋势预测——以广西南宁市西乡塘区为例

王磊, 卓小雄, 吴天生, 凌胜华, 钟晓宇, 赵晓孟

Prediction of the soil element accumulation trends based on 1∶250 000 and 1∶50 000 geochemical surveys and assessments of land quality:A case study of Xixiangtang District, Nanning City, Guangxi zhuang Autonomous Region

WANG Lei, ZHUO Xiao-Xiong, WU Tian-Sheng, LING Sheng-Hua, ZHONG Xiao-Yu, ZHAO Xiao-Meng

表9 2017年西乡塘区农作物重金属平均输出通量

Table 9 Average output fluxes of heavy metals from crops in Xixiangtang District in 2017 kg/(km2·a)

端元 As Cd Cr Hg Pb 农作物 花生 0.096 0.387 0.218 0.006 0.146 蔬菜瓜类 0.008 0.014 0.016 0.000 0.012 水稻籽实 0.356 0.088 0.240 0.009 0.083 香蕉 0.017 0.004 0.050 0.001 0.034 玉米 0.050 0.021 0.201 0.001 0.142 按种植面积 加权平均 0.030 0.015 0.051 0.001 0.032