Pastureislandwithvegetationcoverusedforgrazingoflivestock家畜 　　aspartofafarm,orinranching经营牧场orotherunenclosed没围起来的pastoralsystemsorusedbywildanimalsforgrazingorbrowsing.Prior居先的 　　totheadventoffactoryfarming,pasturewastheprimarysourceoffoodforgrazinganimalssuchascattleandhorses.Itisstillusedextensively,particularlyinarid干燥的regionswherepasturelandisunsuitableforanyotheragriculturalproduction.Inmorehumidregions,pasturegrazing牧草isexploitedextensivelyforfreerangeandorganicfarming. 　　Pasturegrowthcanconsistofgrasses,legumes豆科植物,otherforbs任何非草属或不像草属的草本植物,shrubsoramixture.Soiltype,minimumannualtemperature,andrainfallareimportantfactorsinpasturemanagement.