[Effects of grazing, cutting and decapitating on grass populations on the artificial grassland in subtropical zone of China].
Studies on the effects of grazing, cutting and decapitating on grass populations on the artificial grassland in the subtropical zone of China showed that moderate grazing and cutting could increase the adaptability of Dactylis glomerata and Lolium prenn due to decapitating. Decapitating could rescind the apical dominance and reproduction growth of grass, and hence, the ecological effects of grazing and cutting on grass could be realized by decapitating, and the population density, caloric value and energy accumulation of Dactylis glomerata and Lolium prenn increased obviously. Apical dominance of grasses could lower the population density, energy accumulation and intra-population competitive ability.
Bao
Guozhang
G
College of Environment and Resources Science, Jilin University, Changchun 130023, China. Baoguozhang@163.com
Lu
Guanghua
G
Guo
Jixun
J
Bao
Jianyin
J
D000821:Animal Feed; D000818:Animals; D002681:China; D006109:Poaceae / Q000254:growth & development* / Q000378:metabolism; D012621:Seasons