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select distinct uni.typdoc, sum(nbexplnum) as nbexplnum from (select distinct notices.typdoc, count(explnum_id) as nbexplnum from notices JOIN notices_categories on notcateg_notice=notice_id left join explnum on explnum_mimetype in () and explnum_notice = notice_id ,notice_statut where num_noeud=4586 and statut=id_notice_statut and ((notice_visible_opac=1 and notice_visible_opac_abon=0)) group by notices.typdoc union select distinct notices.typdoc, count(explnum_id) as nbexplnum from notices JOIN notices_categories on notcateg_notice=notice_id left join bulletins on bulletins.num_notice = notice_id and bulletins.num_notice != 0 left join explnum on explnum_mimetype in () and explnum_bulletin != 0 and explnum_bulletin = bulletin_id ,notice_statut where num_noeud=4586 and statut=id_notice_statut and ((notice_visible_opac=1 and notice_visible_opac_abon=0)) group by notices.typdoc) as uni group by uni.typdoc
Catégories
 > 500 Science > 2.60 Pollution, catastrophes et sécurité > Dégradation de l'environnement > Pollution > Pollution de l'eau > Eutrophisation Enrichment of water by nutrients, especially compounds of nitrogen and phosphorus, that will accelerate the growth of algae and higher forms of plant life, and thus deplete the oxygen level of water.
Eutrophisation
Commentaire :
Enrichment of water by nutrients, especially compounds of nitrogen and phosphorus, that will accelerate the growth of algae and higher forms of plant life, and thus deplete the oxygen level of water.
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