CAJ | 학술논문

2012年7月份对晋西黄土区17年生刺槐林下植被组成及多样性进行了调查，并与天然次生林、天然草地进行了对比研究。结果表明：研究区内刺槐林下共出现44个植物种，其中灌木4种、草本植物40种，平均每个样地内出现16个植物种，包括灌木植物2种、草本植物14种。次生林下共出现12个植物种，包括灌木3种、草本植物9种；天然草地共出现13个植物种。人工刺槐林与天然次生林及天然草地在物种组成特征上均存在一定差别。林分密度对林下灌木层和草本层的物种多样性变化影响显著。林分密度为750株· hm-2时，林下灌木层和草本层的物种多样性较高。坡向对林下灌木层和草本层的物种多样性变化的影响显著。对于密度相近的林分阳坡的灌木层和草本层的物种多样性好于阴坡。
2012년7월빈대진서황토구17년생자괴림하식피조성급다양성진행료조사，병여천연차생림、천연초지진행료대비연구。결과표명：연구구내자괴림하공출현44개식물충，기중관목4충、초본식물40충，평균매개양지내출현16개식물충，포괄관목식물2충、초본식물14충。차생림하공출현12개식물충，포괄관목3충、초본식물9충；천연초지공출현13개식물충。인공자괴림여천연차생림급천연초지재물충조성특정상균존재일정차별。림분밀도대림하관목층화초본층적물충다양성변화영향현저。림분밀도위750주· hm-2시，림하관목층화초본층적물충다양성교고。파향대림하관목층화초본층적물충다양성변화적영향현저。대우밀도상근적림분양파적관목층화초본층적물충다양성호우음파。
The investigation was conducted to study the species composition and diversity of 17 years old Robinia pseudoacacia forest undergrowth vegetation in July 2012 , compared with natural secondary forest and natural grassland .There are 44 plant species in R.pseudoacacia forest including 4 shrub species and 40 herb species and there are 16 plant species in each plot on average including 2 shrub species and 14 herb species.There are 12 plant species in natural secondary forest including 3 shrub species and 9herb species.There are 13 plant species in natural grassland.Species composition in arti-ficial R.pseudoacacia forests is different from both natural secondary forest and natural grassland.Species diversity of shrub layer and herb layer is significantly influenced by forest density .Species diversity of shrub layer and herb layer is higher when the forestdensity is 750 tree · hm-2 .Slope direction has significant impact on diversity of shrub layer and herb layer .Species diversity of shrublayer and herb layer on sunny slope was higher than that on shady slope with similar forest density .