CAJ | 학술논문

以贵州独山草种场“黑麦草+鸭茅+苇状羊茅+白三叶”人工草地为研究对象，研究2012年季节性放牧强度处理下草地植被特征的变化。结果表明，在高度变化上，各放牧处理间差异性不显著(P>0.05)；在盖度变化上，从春、夏、秋3季利用上可以看出春季中牧+夏季中牧+秋季中牧优于其他3种方式；春、夏季4种利用方式在密度变化上差异性不显著(P>0．05)，秋季由于干旱问题，春季重牧+夏季中牧+秋季重牧和春季中牧+夏季中牧+秋中牧利用方式草地群落密度高于其他2种方式(P<0.05)；地上生物量变化方面，春季中牧+夏季重牧+秋季中牧和春季中牧+夏季中牧+秋季中牧利用方式在草地群落地生物量上表现出一定的优势。
이귀주독산초충장“흑맥초+압모+위상양모+백삼협”인공초지위연구대상，연구2012년계절성방목강도처리하초지식피특정적변화。결과표명，재고도변화상，각방목처리간차이성불현저(P>0.05)；재개도변화상，종춘、하、추3계이용상가이간출춘계중목+하계중목+추계중목우우기타3충방식；춘、하계4충이용방식재밀도변화상차이성불현저(P>0．05)，추계유우간한문제，춘계중목+하계중목+추계중목화춘계중목+하계중목+추중목이용방식초지군락밀도고우기타2충방식(P<0.05)；지상생물량변화방면，춘계중목+하계중목+추계중목화춘계중목+하계중목+추계중목이용방식재초지군락지생물량상표현출일정적우세。
"Ryegrass, orchard grass, Festuca arundinacea and Trifolium repens" were researched in Dushan County, Guizhou Province, in order explore grass characteris-tics by different grazing methods in seasons. The results show that grass community height in different groups was of little differences (P>0.05); the group of moderate grazing in spring, summer and autumn dominated in grass cover; grass density showed insignificant variations among different treatment groups (P>0.05) and in the groups of heavy grazing in spring and autumn and moderate grazing in summer and of moderate grazing in spring, summer and autumn, grass community density was higher compared with the other groups (P<0.05); as for above-ground biomass, the group of moderate grazing in spring and autumn and heavy grazing in summer and of moderate grazing in spring, summer and autumn dominated.