摘要
以砒砂岩与沙复配土的长期定位试验为依托,选择砒砂岩与沙复配比分别为0∶1(CK)、1∶5(C1)、1∶2(C2)和1∶1(C3)的4个典型处理进行了碳库管理指数的研究。结果表明,复配土活性有机碳含量介于0.39~0.67g/kg之间,处理间无显著差异。碳库活度和碳库活度指数均随着砒砂岩比例的增加而逐渐降低,其中C2和C3处理间无显著差异。碳库指数以CK处理最低,C1、C2和C3处理间无显著差异。碳库管理指数介于98~165之间,其中CK、C2和C3处理间无显著差异,C1处理的碳库管理指数最大。可见,沙土中砒砂岩添加量为16.7%时复配土的碳库活度和碳库管理指数较高,土壤性能较好。
Based on the long-term positioning test of arsenic sandstone and sand composite soil,four typical treatments with ratios of 0:1(CK),1:5(C1),1:2(C2)and 1:1(C3)were selected for the study of carbon pool management index.The results showed that the active organic carbon content of the composite soil is between 0.39-0.67 g/kg,and there is no significant difference between treatments.Both the carbon pool activity and the carbon pool activity index gradually decreases with the increase of the proportion of arsenic rock,and there is no significant difference between the C2 and C3 treatments.The carbon stock index is lowest in CK treatment,and there is no significant difference between C1,C2 and C3 treatments.The carbon stock management index is between 98-165,and there is no significant difference between CK,C2 and C3 treatments,and the C1 treatment has the largest carbon stock management index.It can be seen that when the addition amount of arsenic in the sand is 16.7%,the carbon pool activity and carbon pool management index of the composite soil are higher,and the soil performance is better.
作者
郭振
孙剑虹
Guo Zhen;Sun Jianhong(Institute of Land Engineering and Technology,Shaanxi Provincial Land Engineering Construction Group Co.,Ltd.,Xi’an,Shaanxi710021,China;Shaanxi Provincial Land Engineering Construction Group Co.Ltd,Xi’an,Shaanxi 710075,China;Key Laboratory of Degraded and Unused Land Consolidation Engineering,the Ministry of Natural and Resources,Xi’an,Shaanxi 710021,China;Shaanxi Provincial Land Consolidation Engineering Technology Research Center,Xi’an,Shaanxi 710075,China)
出处
《绿色科技》
2020年第20期61-62,共2页
Journal of Green Science and Technology
关键词
碳库管理指数
复配土
毛乌素沙地
中试基地
高锰酸钾氧化
carbon pool management index
compound soil
Mu Us sandy land
pilot plant
potassium permanganate oxidation
作者简介
郭振(1992-),男,助理工程师,硕士,研究方向为土地整治及生物循环。
