early-spring herbs

The statistical analysis showed that,the population patterns of early-spring herbs in Laoshan are clumped patterns,the reasons including distribution,spatial heterogeneity,and other environmental factors.
經(jīng)統(tǒng)計分析結(jié)果表明,老山地區(qū)早春植物的種群分布聚集的原因是由包括營養(yǎng)物質(zhì)分布、空間異質(zhì)性等環(huán)境因素所致。