CAJ | 학술논문

利用民勤荒漠绿洲过渡带不同类型白刺沙丘的土壤微生物、土壤理化性状及二者之间的相关性进行研究，旨在探讨白刺沙丘的成土过程，为绿洲生态建设提供基础数据，结果表明，1）固定、半固定和流动沙丘粘粒、粉粒、细砂粒、粗砂粒含量差异较大；土壤养分含量与土壤粘粒、粉粒、细砂粒等细沙物质含量呈正相关性，与粗砂粒含量呈负相关性，表现为土壤养分含量随土壤颗粒的增大，相关性减弱。2）土壤微生物类群数量在半固定沙丘明显高于固定沙丘和流动沙丘。3）过渡带土壤均处于偏碱性状态，有机质、全氮、全磷、全钾、水解氮、速效钾、速效磷和 Ca-CO3含量随沙丘发育年代的增加逐渐增加。4）不同年代沙丘中土壤微生物和土壤理化因子均具较好的相关性，尤其是细菌和放线菌与 pH 值呈显著的负相关关系，土壤有机质含量与三大菌群数量都表现出显著的正相关关系。
이용민근황막록주과도대불동류형백자사구적토양미생물、토양이화성상급이자지간적상관성진행연구，지재탐토백자사구적성토과정，위록주생태건설제공기출수거，결과표명，1）고정、반고정화류동사구점립、분립、세사립、조사립함량차이교대；토양양분함량여토양점립、분립、세사립등세사물질함량정정상관성，여조사립함량정부상관성，표현위토양양분함량수토양과립적증대，상관성감약。2）토양미생물류군수량재반고정사구명현고우고정사구화류동사구。3）과도대토양균처우편감성상태，유궤질、전담、전린、전갑、수해담、속효갑、속효린화 Ca-CO3함량수사구발육년대적증가축점증가。4）불동년대사구중토양미생물화토양이화인자균구교호적상관성，우기시세균화방선균여 pH 치정현저적부상관관계，토양유궤질함량여삼대균군수량도표현출현저적정상관관계。
In order to explore soil-forming processes and to provide basic data for oasis ecological construction, a study has been undertaken that correlates soil microbes with soil physical and chemical properties in different Nitraria sand dunes in the oasis-desert ecotone of Minqin.Results showed significant differences in soil clay, silt,fine sand and coarse sand content among fixed,semi-fixed and flowing sand dunes.Soil nutrients showed a positive correlation with soil clay,silt and fine sand.However,they were negatively correlated with coarse sand.Correlations decreased with increasing soil particle size.The quantity of soil microbes in semi-fixed sand dunes was clearly higher than in fixed and flowing sand dunes.The ecotone exhibits alkaline soils.The older the sand dune the greater the content of organic matter,total nitrogen,total phosphorus,total potassium,hy-drolytic nitrogen,potassium,available phosphorus and CaCO3 .In addition,soil microbes were significantly correlated with the physical and chemical properties of different ages of sand dune,especially bacteria and acti-nomycetes,which showed a prominent negative correlation with pH value.Soil organic matter had a significantpositive correlation with the quantity of these microbes.