<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">乔爽</style></author><author><style face="normal" font="default" size="100%">王婷*</style></author><author><style face="normal" font="default" size="100%">张倩</style></author><author><style face="normal" font="default" size="100%">刘昕曜</style></author><author><style face="normal" font="default" size="100%">赵梦瑶</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">长江源区重金属分布特征及生态风险评价</style></title><secondary-title><style face="normal" font="default" size="100%">北京大学学报（自然科学版）</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2022</style></year></dates><volume><style face="normal" font="default" size="100%">58</style></volume><pages><style face="normal" font="default" size="100%">297-307</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><issue><style face="normal" font="default" size="100%">2</style></issue></record></records></xml>