Distribution Characteristics of Soil Organic Carbon in Degraded Forest Land in the Sandstorm Area of Jingbian County,Shaanxi Province  

作　　者：Tingting MENG Na WANG 

机构地区：[1]Shaanxi Provincial Land Engineering Construction Group Co.,Ltd.,Xi'an 710075,China [2]Institute of Shaanxi Land Engineering and Technology Co.,Ltd.,Xi'an 710075,China [3]Key Laboratory of Degraded and Unused Land Consolidation Engineering,Ministry of Land and Resources,Xi'an 710075,China

出　　处：《Asian Agricultural Research》2023年第2期39-41,共3页亚洲农业研究（英文）

基　　金：Supported by the Scientific Research Project of Shaanxi Provincial Land Engineering Construction Group(DJNY2022-21);Shaanxi Province Youth Talent Promotion Program(YKJ202228).

摘　　要：[Objectives]To explore the distribution characteristics of soil organic carbon in degraded forest land in the sandstorm area of Jingbian County,Shaanxi Province.[Methods]The distribution characteristics and abundance of 0-20 cm shallow soil organic carbon in 5 towns in the sandstorm area in the north of Jingbian County were studied by field sampling and indoor detection.[Results]The average soil organic carbon contents in Hongdunjie Town,Haizetan Town,Huanghaojie Town,Ningtiaoliang Town and Dongkeng Town were 2.93,3.21,2.53,2.54 and 4.08 g/kg,respectively,which were all lower than the national background value(31.00 g/kg).The coefficients of variation of soil organic carbon content in Hongdunjie Town,Huanghaojie Town and Dongkeng Town were 59.04%,35.97%and 47.55%,respectively,with higher coefficients of variation and larger differences in spatial distribution.The organic carbon content of Haizetan Town and Dongkeng Town was above the abundance,accounting for 70%and 50%,which were relatively rich,while the soil organic carbon content of Hongdunjie was relatively scarce.The average content of soil organic carbon in the sandstorm area was 3.03 g/kg,which was also lower than the national background value.The coefficient of variation was 46.53%,showing high coefficient of variation and large difference in spatial distribution.In addition,20.41%of the average content of soil organic carbon in the sandstorm area was in the deficient level,and 79.59%were in the medium or above level.[Conclusions]The study of distribution characteristics of soil organic carbon in degraded forest land in the sandstorm area of Jingbian County will better serve the precise management of soil resources.

关 键 词：Sandstorm area of Jingbian County Low-efficiency forest land Soil organic carbon ABUNDANCE 

分 类 号：S714.2[农业科学—林学]