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河北省旱地土壤有机碳时空演变模拟

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为了更好地实现旱地的可持续发展,以河北省为研究对象,采用CENTURY模型模拟的方法,对1990年-2020年河北省旱地土壤有机碳的动态变化进行模拟并分析.结果表明:1)CENTURY模型模拟的土壤有机碳变化和实测值具有很好的一致性.2)30年来土壤有机碳储量和密度均呈上升趋势,1990年SOCS为158.60 Tg,2020年为167.66 Tg,30年中增加了 5.7%,表现出"碳汇"效应.3)SOCD年均增加0.06 Mg C hm-2,增加的区域主要分布在中南部和南部.
Temporal and Spatial Evolution of Soil Organic Carbon in Dry Land in Hebei Province
In order to better realize the sustainable development of dryland,the dynamic changes of soil organic carbon in dryland in Hebei Province from 1990 to 2020 were simulated and analyzed by u-sing the CENTURY model simulation method.The results showed that:1)The changes of soil organic carbon simulated by the CENTURY model were in good agreement with the measured values.2)In the past 30 years,the SOCS was 158.60 Tg in 1990 and 167.66 Tg in 2020,an increase of 5.7%in 30 years,showing a"carbon sink"effect.3)The average annual increase of SOCD was 0.06 Mg C hm-2,and the increase was mainly distributed in the south-central and southern regions.

drylandsoil organic carbonCENTURY modelHebei Province

牛文娟、王世航

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安徽理工大学空间信息与测绘工程学院,安徽淮南 232001

安徽理工大学矿山采动灾害空天地协同监测与预警安徽普通高校重点实验室,安徽淮南 232001

旱地 土壤有机碳 CENTURY模型 河北省

2024

佳木斯大学学报(自然科学版)
佳木斯大学

佳木斯大学学报(自然科学版)

影响因子:0.159
ISSN:1008-1402
年,卷(期):2024.42(8)