CONCEPTShttp://cat.aii.caas.cn/concept/31107cat.aii.caas.cnhttp://d-nb.info/gnd/4136931-2d-nb.infohttp://eurovoc.europa.eu/252eurovoc.europa.euhttp://id.loc.gov/authorities/subjects/sh85033302id.loc.govhttp://linkeddata.ge.imati.cnr.it:2020/resource/EARTh/64390linkeddata.ge.imati.cnr.ithttp://lod.nal.usda.gov/nalt/4418lod.nal.usda.govhttp://www.eionet.europa.eu/gemet/concept/1827www.eionet.europa.euhttp://zbw.eu/stw/descriptor/14055-5zbw.eu。