In situ effects of elevated CO(2) on the carbon and nitrogen status of alpine plants

alpine grasslands amidon azote azucares carbohidratos carbohydrates carbon carbon dioxide carbon dioxide enrichment carbone carbono carex dioxyde de carbone feuille glucide hojarasca hojas leaves mineral nutrients nitrogen nutrientes minerales plant litter plante de rocaille poa praderas alpinas prairie alpine racine rock garden plants roots starch sucres sugars trifolium