title: Effect of free-air CO2 enrichment on nematode communities in a Chinese farmland ecosystem.
abstract: At a rice-wheat rotational free-air CO2 enrichment( FACE) platform, the effect of elevated atmospheric CO2 on soil nematode communities in a farmland ecosystem was studied. Wheat plots were exposed to elevated atmospheric CO2 (ambient 370 microl/L + 200 microl/L). 32 families and 40 genera of nematode were observed in soil suspensions during the study period. Under FACE treatment, the numbers of total nematodes, bacterivores and fungivores exhibited an increasing trend. Because of the seasonal variation of soil temperature and moisture, the effect of elevated atmospheric CO2 on soil nematodes was only observed under favorable conditions. The response of nematode communities to elevated atmospheric CO2 may indicate the change of soil food web.
authors.affiliation: Shenyang Experimental Station of Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Li
authors.forename: Wen-ju
authors.initials: WJ
authors.lastname: Liang
authors.forename: Yong
authors.initials: Y
authors.lastname: Jiang
authors.forename: Jian-guo
authors.initials: JG
authors.lastname: Zhu
authors.forename: Chui-hua
authors.initials: CH
authors.lastname: Kong
mesh_terms: D000383:Agriculture; D000818:Animals; D001272:Atmosphere / Q000032:analysis*; D002245:Carbon Dioxide / Q000032:analysis / Q000494:pharmacology*; D002681:China; D017753:Ecosystem; D020387:Food Chain; D009348:Nematoda / Q000187:drug effects / Q000254:growth & development*; D012987:Soil; D013045:Species Specificity; D014908:Triticum
chemical_list: D012987:Soil; D002245:Carbon Dioxide