| Taking Caragana intermedia at three different ages of 16a, 25a and 37a as the main objects, biomass of branches and leaves, crude protein content of C. intermedia at three different ages were measured. Crude protein content of dynamics in one year and branches of different diameter classes at 16a were also measured. The results showed that,biomass of branches and leaves decreased with ages increasing. Crude protein content of branches and leaves at 16a was the highest among three different ages of C. intermedia. Leaves爷crude protein content of Caragana intermedia at 16a decreased as time went on, dynamics of branches爷crude protein content in one year were in a stable state basically. C.intermedia had a high crude protein content of branches and leaves in the growth cycle of one year, so it could be used for shrub feed of good quality for livestock. Biomass of branches decreased as diameter classes increasing, however, crude protein content of different diameter-class branches increased significantly with the increase of diameter classes. The development of C. intermedia showed a trend of degradation, the ability of self-renewal of C. intermedia at older ages declined. |
