CAJ | 학술논문

为研究水电工程建设对土壤理化性质的影响，选取金安桥水电站重塑地貌2＃弃渣场和3＃弃渣场的土壤为研究对象，未受工程施工扰动的灌草丛、林地和农田的原地貌土壤作为对照，对土壤理化性质进行测定，结果显示：①土壤容重为重塑地貌大于其原地貌；②总孔隙度和毛管孔隙度为原地貌高于其重塑地貌，非毛管孔隙度则相反；③重塑地貌2＃和3＃渣场的表层渣体粒径都较粗，＞5 mm粒径的颗粒组成百分比就达到64．53％和65．11％，比例不合理，而原地貌农田的土壤粒径组成基本呈正态分布；④土壤有机质、全氮、水解氮、速效钾含量均为原地貌大于重塑地貌，而全磷、速效磷含量则相反。研究结果表明水电工程建设对土壤理化性质影响较大。
위연구수전공정건설대토양이화성질적영향，선취금안교수전참중소지모2＃기사장화3＃기사장적토양위연구대상，미수공정시공우동적관초총、임지화농전적원지모토양작위대조，대토양이화성질진행측정，결과현시：①토양용중위중소지모대우기원지모；②총공극도화모관공극도위원지모고우기중소지모，비모관공극도칙상반；③중소지모2＃화3＃사장적표층사체립경도교조，＞5 mm립경적과립조성백분비취체도64．53％화65．11％，비례불합리，이원지모농전적토양립경조성기본정정태분포；④토양유궤질、전담、수해담、속효갑함량균위원지모대우중소지모，이전린、속효린함량칙상반。연구결과표명수전공정건설대토양이화성질영향교대。
In order to study the impact of hydropower construction on soil physical and chemical properties , taking the soil at 2#and 3# Dumping pile Jin'anqiao Hydropower Station as the research object , it was determined the soil physical and chemical properties by comparing with the original landform soil at shrub , woodland and farmland ,.The results showed:①The soil bulk density indicated the dumping pile was greater than the original landscape ; ②total porosity and capillary porosity at original landform was higher than the dumping pile , but the non-capillary porosity was the opposite;③The particles of 2#and 3#Dumping pile are coarse, the percentage of >5mm diameter particles reached 64 .53%and 65 .11%, the proportion was unreasonable .The original landscape of farmland the percentage of diameter particles appeared a normal distribution;④soil organic matter , total nitrogen , hydrolysable nitrogen , availa-ble potassium at the dumping pile were greater than that at the original landform , and total phosphorus , available phos-phorus was the opposite .The results showed that hydropower construction has the great impact on the soil physical and chemical properties .