CAJ | 학술논문

研究不同放牧强度对高寒草甸植被特征的影响。结果表明称多地区高寒草甸在重度放牧处理下矮嵩草的高度与其它处理存在差异显著性（P〈0．05），放牧强度对毒草类植被高度影响不显著。不同放牧强度对植被盖度的影响各不相同，矮嵩草经放牧处理盖度有明显减少，重度放牧可降低植被总盖度，其它处理影响不显著。重度与中度放牧可使高寒草甸草场地上、地下生物量明显减少。
연구불동방목강도대고한초전식피특정적영향。결과표명칭다지구고한초전재중도방목처리하왜숭초적고도여기타처리존재차이현저성（P〈0．05），방목강도대독초류식피고도영향불현저。불동방목강도대식피개도적영향각불상동，왜숭초경방목처리개도유명현감소，중도방목가강저식피총개도，기타처리영향불현저。중도여중도방목가사고한초전초장지상、지하생물량명현감소。
Effects of different grazing intensity of Yak on vegetation traits of alpine meadow in Chengduo were studied. The experimental studying showed : the height of Kobresia humilis of alpine meadow under heavy grazing had significant differences ( P 〈 0.05 ) compared with the others treatment, there was not a significant effect of grazing intensity on the height of noxious grass. There were different effects on vegetable cover under different grazing intensity, the cover of Kobresia humilis deereasede under grazing, total covers of the vegetable decreased under heavy grazing, other treatment had no significant effect of total covers. Biomass and underground biomass decreased under heavy grazing and medium grazing.