CAJ | 학술논문

通过对甘肃引黄灌区典型天然植被群落调查，研究了主要种群的分布特征。结果表明：（1）甘肃引黄灌区主要天然群落内典型的种群有猫头刺、白刺和油蒿；（2）3个不同种群立地条件和土壤特征差异显著，油蒿种群为固定沙丘，猫头刺种群为固定、半固定沙丘，白刺种群为半固定沙丘，其pH值和全盐量从高至低依次为：白刺、猫头刺、油蒿；（3）研究区共有植物种29种，隶属10个科26个属，其中灌木或小灌木5种，占植物种数的17．24％；（4）研究区植被整体表现出了结构简单，灌木层物种相对单一且数量较少，草本层物种相对丰富且数量较大的特征。
통과대감숙인황관구전형천연식피군락조사，연구료주요충군적분포특정。결과표명：（1）감숙인황관구주요천연군락내전형적충군유묘두자、백자화유호；（2）3개불동충군입지조건화토양특정차이현저，유호충군위고정사구，묘두자충군위고정、반고정사구，백자충군위반고정사구，기pH치화전염량종고지저의차위：백자、묘두자、유호；（3）연구구공유식물충29충，대속10개과26개속，기중관목혹소관목5충，점식물충수적17．24％；（4）연구구식피정체표현출료결구간단，관목층물충상대단일차수량교소，초본층물충상대봉부차수량교대적특정。
Through investigation on typical natural vegetation communities in Yellow River Irrigation Area in Gansu Province ,the distribution characteristics of the main population were studied .Result shows that :(1) the typical population of main natural populations in Yellow River Irrigation Area are Oxytropis aciphylla ,Nitraria tanguto-rum & A rtemisia ordosica;(2) site conditions & soil characteristics of three different populations are significantly different ,A rtemisia ordosica being fixed dunes ,Oxytropis aciphylla being fixed & semi-fixed sand dunes ,popula-tion of Nitraria tangutorum being semi-fixed sand dunes ;its pH value & total salt from high to low is as follows :Nitraria tangutorum ,Oxytropis aciphylla ,A rtemisia ordosica;(3) there are 29 plant species in the study area ,be-longing to 10 families and 26 genera ,of which five kinds of shrubs or small shrubs ,accounting for 17 .24% of plant species ;(4) the vegetation in study area shows characteristics of simple structure ,single & fewer species in shrub layer ,larger number of species & relative abundance in herbaceous layer .