CAJ | 학술논문

以贵州省普定县碳酸盐岩石漠化研究试验区(陈旗村)的棕黄色粘性土为研究对象,考虑了初始含水率和浸润时间两个影响因素,对研究区土体中占绝对优势的>5mm的大颗粒团聚体进行了共计16组湿筛法试验.结果表明:棕黄色粘性土团聚体遇水破裂的过程主要发生在被浸润初期,初始含水率越小的土壤,经雨水浸润后,大颗粒团聚体破裂得越快越彻底;而原本就比较湿润的土体,团聚体的稳定性则较好.因此,对碳酸盐岩石地区石漠化的防治,应着重考虑气候长期干燥、蒸发量对水土流失的影响.
이귀주성보정현탄산염암석막화연구시험구(진기촌)적종황색점성토위연구대상,고필료초시함수솔화침윤시간량개영향인소,대연구구토체중점절대우세적>5mm적대과립단취체진행료공계16조습사법시험.결과표명:종황색점성토단취체우수파렬적과정주요발생재피침윤초기,초시함수솔월소적토양,경우수침윤후,대과립단취체파렬득월쾌월철저;이원본취비교습윤적토체,단취체적은정성칙교호.인차,대탄산염암석지구석막화적방치,응착중고필기후장기간조、증발량대수토류실적영향.
The carbonate rock area in the Chenqi village of Puding County, Guizhou Province is an area of karst rocky desertification.This paper examines the stability of brown clayey soil in the karst rocky desertification.The paper uses the wet sieving method. The results show that cracking of the brown clayey soil aggregates due to encountering water occurs in the early soaked stage.The less the initial water content of the brown clayey soil aggregates is, after soaked with rainwater, the quicker the cracking of soil aggregates is. Stability of the brown clayed soil aggregates is good for the soil with high water content. So, for prevention of rocky desertification of the carbonate rock area, it is important to take into consideration of the effect of desiccation climate and evaporation quantity on the soil loss.