Main field : itemname、category、year、month、itemunit、itemvalue

Main field : orgid、edocname、year、month、data01

Main field : itemname、category、year、month、itemunit、itemvalue

Main field : itemname、category、year、month、itemunit、itemvalue

Main field : water_type、water_num

Main field : sample_number、site、treatment、rice_cultivar、soil_cu_conc_aqua_regia、soil_cu_conc_n_hcl、rice_cu_conc、soil_zn_conc_aqua_regia、soil_zn_conc_n_hcl、rice_zn_conc、soil_cr_conc_aqua_regia、soil_cr_conc_n_hcl、rice_cr_conc、soil_ni_conc_aqua_regia、soil_ni_conc_n_hcl、rice_ni_conc、data_resource

Main field : itemname、category、year、month、itemunit、itemvalue

Main field : itemname、category、year、month、itemunit、itemvalue

Main field : itemname、category、year、month、itemunit、itemvalue

Main field : cityname、dstname、yyyqq、light、dstidxmemo