CAJ | 학술논문

以祁连山东段高寒草甸栖息的高原鼢鼠为研究对象，在5个不同放牧强度区，连续3年监测高原鼢鼠种群相对密度变化，并调查反映其栖息地特征的主要指标(植被盖度、高度、频度、生物量，地下根系生物量、根系碳水化合物，土壤紧实度、土壤容重、土壤水分)。通过主成分分析法(PCA)分析影响高原鼢鼠栖息地选择的因素，结果得出：土壤水分、土壤紧实度、植被均匀度、地上生物量、放牧强度、土壤容重、地下生物量、根系碳水化合物为影响栖息地特征的主要指标。土壤环境因素(土壤水分、土壤紧实度)对高原鼢鼠栖息地选择的影响比食物资源(地下生物量、根系碳水化合物)的影响重要。
이기련산동단고한초전서식적고원분서위연구대상，재5개불동방목강도구，련속3년감측고원분서충군상대밀도변화，병조사반영기서식지특정적주요지표(식피개도、고도、빈도、생물량，지하근계생물량、근계탄수화합물，토양긴실도、토양용중、토양수분)。통과주성분분석법(PCA)분석영향고원분서서식지선택적인소，결과득출：토양수분、토양긴실도、식피균균도、지상생물량、방목강도、토양용중、지하생물량、근계탄수화합물위영향서식지특정적주요지표。토양배경인소(토양수분、토양긴실도)대고원분서서식지선택적영향비식물자원(지하생물량、근계탄수화합물)적영향중요。
The paper studied the influence factors of habitat selection by the plateau zokors(Myospalax bai-leyi )in alpine meadow in eastern Qilian Mountain under five grazing intensity for three years.In the five differ-ent grazing intensity areas,using new mounds to reflect the plateau zokors population density and monitoring the change for three years.Meanwhile,the factors of the zokors'habitat,including coverage,height,frequency, biomass,carbohydrate of roots,soil compaction,bulk density as well as soil moisture were measured.Based on principal component analysis (PCA)analyse,the results showed that the soil moisture,soil density,plant even-ness,above-ground,underground biomass,carbohydrate of roots,biomass,grazing intensity,soil bulk density af-fected the zokors'habitat selection.When plateau zokor sselected the habitat,the soil environmental factors (soil moisture and soil compaction)more important than food resources (underground biomass and carbohydrate).