CAJ | 학술논문

为研究水电工程建设干扰对土壤微生物数量的影响，选取云南禄劝普渡河甲岩水电站2种施工干扰类型（弃渣场、施工便道）的土壤为研究对象，以未受干扰的3种生境（林地、灌丛地、农田）的原地貌土壤作为对照，通过“外土壤取样及室内平板表面涂抹法和稀释法分别测定了上述干扰和未干扰的5种类型土壤的细菌、真菌、放线菌数量及总数量。结果表明：工程建设干扰对三大土壤微生物数量的影响程度各不相同，对表层土壤0~40 cm的细菌、真菌降低影响巨大。三大微生物在不同干扰生境中数量最多的是细菌，真菌和放线菌很少。干扰与未干扰生境土壤微生物数量均具有明显的垂直分布差异。除弃渣场微生物总量是随着土层加深而增加外，其他4种生境微生物总量均是随着土层深度增加而减少。
위연구수전공정건설간우대토양미생물수량적영향，선취운남록권보도하갑암수전참2충시공간우류형（기사장、시공편도）적토양위연구대상，이미수간우적3충생경（임지、관총지、농전）적원지모토양작위대조，통과“외토양취양급실내평판표면도말법화희석법분별측정료상술간우화미간우적5충류형토양적세균、진균、방선균수량급총수량。결과표명：공정건설간우대삼대토양미생물수량적영향정도각불상동，대표층토양0~40 cm적세균、진균강저영향거대。삼대미생물재불동간우생경중수량최다적시세균，진균화방선균흔소。간우여미간우생경토양미생물수량균구유명현적수직분포차이。제기사장미생물총량시수착토층가심이증가외，기타4충생경미생물총량균시수착토층심도증가이감소。
The present study is intended to illustrate the effects of different disturbed habitat to the quantity of soil microorganism,soil of two types of construction project disturbance such as abandoned dreg site and construction access road of Jayan Hydropower Station of Pudu River in Luquan,Yunnan was selected as study object,three soil types which undisturbed(forest land,shrub land,farmland)were selected as the control.The quantity and total quantity of bacteria,fungi and actinomyces of disturbed and undisturbed five types of soil were measured by soil sampling,flat surface smearing method and dilution method.The results were as followsthe engineering construction disturbed degree of impact on microbial number of three kinds of soil are not identical,bacteria and fungi the surface soil of 0~40 cm were great reduced.Among three kinds of microbe in different disturbed habitats,bacteria was the most popular,fungi and actinomyces were less.The disturbed and undisturbed soil microbial quantity habitats both had obvious differences in vertical distribution.Except for the residue field,where the microorganism amount increased along with the soil depth,the amount of other four habitats of microorganism decreased along with the soil depth.