CAJ | 학술논문

土壤侵蚀问题是当今世界面临主要环境问题之一,~(137)Cs示踪作为一种应用于土壤侵蚀研究比较成熟的方法,其背景值的确定是前提.本研究通过两个疑似背景值点样品的采集,探讨了耕地土壤剖面~(137)Cs活度的分布特征、增加样品的采集数量,并且与其他研究者的研究进行对比,确定江苏省句容地区~(137)Cs的背景值为1820.36 Bq/m~2.此活度与江苏省其他地区的背景值接近,可以用该背景值进行土壤侵蚀速率以及农业非点源污染负荷估算.
토양침식문제시당금세계면림주요배경문제지일,~(137)Cs시종작위일충응용우토양침식연구비교성숙적방법,기배경치적학정시전제.본연구통과량개의사배경치점양품적채집,탐토료경지토양부면~(137)Cs활도적분포특정、증가양품적채집수량,병차여기타연구자적연구진행대비,학정강소성구용지구~(137)Cs적배경치위1820.36 Bq/m~2.차활도여강소성기타지구적배경치접근,가이용해배경치진행토양침식속솔이급농업비점원오염부하고산.
Soil erosion is one of the primary environment problems in today's world, and ~(137)Cs tracing technology is a mature method in studying soil erosion. It is vital to confirm the reference ~(137)Cs inventory. The paper, giving a new method for determining the reference ~(137)Cs inventory of soil in the region where lacks the perfect reference sample sites, studied the characteristic of ~(137)Cs soil profile distribution and the increase of the number of the soil samples, by comparing with the other's studies, the determined soil reference ~(137)Cs inventory was 1 820.36 Bq/m~2 in Jurong region, Jiangsu Province. This reference inventory was close to the value nearby Jurong region in Jiangsu Province, so the activity was reliable and may be used to estimate the loss rate of soil and the load of agricultural non-point contamination.