土壤
土壤
토양
SOILS
2009年
6期
897-901
,共5页
王小雷%杨浩%桑利娟%刘晓海%赵其国
王小雷%楊浩%桑利娟%劉曉海%趙其國
왕소뢰%양호%상리연%류효해%조기국
~(137)Cs沉降%耕作土%均一性分布
~(137)Cs沉降%耕作土%均一性分佈
~(137)Cs침강%경작토%균일성분포
~(137)Cs settlement%Agricultural soil%Homogeneous distribution
选择一块面积为35m×30m较为平坦的农耕地作为研究对象,采集68个样点,共计112个样品,对~(137)Cs在土壤中的垂直分布和水平分布进行了探讨.结果表明,~(137)Cs在耕作土壤剖面中分布主要集中在耕层以内,且各个层的质量活度介于2.92~4.01Bq/kg之间,在土壤表层中水平面上质量活度介于28.77~30.98Bq/kg之间,该核素在土壤剖面和地表水平面上都呈现均一性分布特征.
選擇一塊麵積為35m×30m較為平坦的農耕地作為研究對象,採集68箇樣點,共計112箇樣品,對~(137)Cs在土壤中的垂直分佈和水平分佈進行瞭探討.結果錶明,~(137)Cs在耕作土壤剖麵中分佈主要集中在耕層以內,且各箇層的質量活度介于2.92~4.01Bq/kg之間,在土壤錶層中水平麵上質量活度介于28.77~30.98Bq/kg之間,該覈素在土壤剖麵和地錶水平麵上都呈現均一性分佈特徵.
선택일괴면적위35m×30m교위평탄적농경지작위연구대상,채집68개양점,공계112개양품,대~(137)Cs재토양중적수직분포화수평분포진행료탐토.결과표명,~(137)Cs재경작토양부면중분포주요집중재경층이내,차각개층적질량활도개우2.92~4.01Bq/kg지간,재토양표층중수평면상질량활도개우28.77~30.98Bq/kg지간,해핵소재토양부면화지표수평면상도정현균일성분포특정.
Selected a relatively flat farmland with the area of 35 m × 30 m, located 68 sites and collected 112 samples in total, vertical distribution and horizontal distribution of ~(137)Cs in the agricultural soil were analyzed. The results indicated that the activity of ~(137)Cs concentrated in the topsoil of the agricultural soil, and ranged from 2.92 to 4.01 Bq/kg for every stratified sample and from 28.77 to 30.98 Bq/kg for all whole samples, which proved the characteristic of homogeneity in the vertical and horizontal distribution on soil surface.