In order to ensure high and stable yield of mulched Phyllostachys praecox,a field experiment was conducted in P.praecox forest of Chongyang County in 2011-2015,and the differences of shoot output in different plant density and different age structure of reserved P.praecox stock plants were compared.The results indicated that the density of P.praecox plants should be within 12 000-15 000 plants per hm~2,and the average output of P.praecox shoots could reach 22 381 kg/hm~2.It was an optimized age structure th...