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当前位置: 首页 > 文章 > 西北干旱区森林和草原SOC向SIC转移的研究进展 西北林学院学报 2010,25 (2) 40-44
Position: Home > Articles > Research Progress of Soil Organic Carbon Transfer to Soil Inorganic Carbonates in Forest and Grassland Soil in Northwest Arid Areas Journal of Northwest Forestry University 2010,25 (2) 40-44

西北干旱区森林和草原SOC向SIC转移的研究进展

作  者：
张林;孙向阳;曹吉鑫;高程达;张月鲜
单  位：
北京林业大学水土保持与荒漠化防治教育部重点实验室
关键词：
西北干旱区;土壤有机碳;土壤无机碳;碳转移
摘  要：
干旱区的土壤碳是全球碳库的重要组成部分。西北干旱区土壤无机碳比重较大,且通过"SOC-CO2-SIC"的微碳循环系统存在着土壤有机碳(SOC)向土壤无机碳(SIC)的转移,研究该迁移转化过程、估算其转移量,可揭露"遗漏"的一部分碳汇。表述了该地区SOC向SIC转移的机理,介绍了几种常用计算碳转移量的方法,并对其进行对比分析;重点阐述了应用碳稳定同位素技术的生物地球化学方法在碳转移量计算中的应用。但目前国内外对该方面的研究仍较少见,且计算碳转移量的过程以及对土壤CO2区分等还存在着许多不确定性,测定结果只为估算值。在以后的研究中,应加强SOC向SIC转移的影响因子研究,降低试验误差。
译  名：
Research Progress of Soil Organic Carbon Transfer to Soil Inorganic Carbonates in Forest and Grassland Soil in Northwest Arid Areas
作  者：
ZHANG Lin,SUN Xiang-yang,CAO Ji-xin,GAO Cheng-da,ZHANG Yue-xian(Soil and Water Conservation and Desertification Combating,Ministry of Education,Beijing Forestry University,Beijing 100083,China)
关键词：
arid region in Northwestern China;soil organic carbon;soil inorganic carbonates;carbon transfer
摘  要：
The soil carbon in arid regions is an important component of the global carbon pool.Northwest arid area includes larger proportion soil inorganic carbon.Through the "SOC-CO2-SIC" micro-carbon cycle,the soil organic carbon can transfer to the soil inorganic carbon.To study the migration and transformation process and estimate the transfer amount can expose part of the "missing" carbon sink.This paper described the mechanism of the transfer and introduced several methods to calculate the amount of carbon transfer.We contrasted to these methods,and expounded the biogeochemical ways of stable isotope techniques.Problems existed in the research were discussed.It was found the few research was carried out in the area.Many uncertainties existed in the process of calculating the amount of carbon transfer and the distinction from CO2 of soil.Most results were only from estimation.It was suggested that the study of impact factor of the SOC transfer to the SIC should be strengthened to reduce the test errors.

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