CAJ | 학술논문

通过调查民勤白土井的芦苇群落，对盐沼、盐碱地、覆沙地的芦苇群落、土壤机械组成、土壤水分等的空间分布进行分析，结果表明：随着生境不同，芦苇群落的伴生种数量和种类均表现出差异，盐沼地土壤含水率和植被覆盖度最大，物种丰富度最小。3种生境土壤含水率是盐沼>盐碱地>覆沙地。土壤水分决定芦苇生态型，盐沼地分布3种芦苇生态型。3种生境土壤颗粒组成主要以粉粒与沙粒为主，土壤质地以粉沙质壤土与沙质壤土为主，不同生境各层次间土壤机械组成存在差异。
통과조사민근백토정적호위군락，대염소、염감지、복사지적호위군락、토양궤계조성、토양수분등적공간분포진행분석，결과표명：수착생경불동，호위군락적반생충수량화충류균표현출차이，염소지토양함수솔화식피복개도최대，물충봉부도최소。3충생경토양함수솔시염소>염감지>복사지。토양수분결정호위생태형，염소지분포3충호위생태형。3충생경토양과립조성주요이분립여사립위주，토양질지이분사질양토여사질양토위주，불동생경각층차간토양궤계조성존재차이。
The Phragmites australis communities and the spatial distribution of soil monistures and soil me-chanical composition in various habitats of saline marsh,saline-alkali land and sandy land in Minqin were stud-ied,The result showed there were difference in the composition and number of companion species in different habitats.The soil moisture and vegetation coverage in salt marsh was the highest,and the richness was the smal-lest.The soil moisture was the highest in saline marsh,followed by that in saline land,and then that in sandy land.The ecotype of Phragmites australis was depend on the soil moisture,and there were 3 ecotypes in saline marsh.The soil particles were mainly composed by silt and sand in 3 habitats,the main soil textures were silty loam and sandy loam,there were differences in the soil mechanical composition of various soil layers in different habitats.