干旱区生态环境知识资源中心(Arid): Temporal and Spatial Changes in Soil Organic Carbon in a Semi-Arid Area of Aohan County, Chifeng City, China

Arid

DOI	10.3390/w15183253
	Temporal and Spatial Changes in Soil Organic Carbon in a Semi-Arid Area of Aohan County, Chifeng City, China
	Li, Long; Dong, Xiaoyu; Sheng, Yan; Zhang, Peng; Zhang, Shangxuan; Zhu, Zhizhuo
通讯作者	Sheng, Y
来源期刊	WATER
EISSN	2073-4441
出版年	2023
卷号	15 期号:18
英文摘要	Soil organic carbon (SOC) plays a crucial role in arid zones, while land-use change could lead to changes in the balance of SOC. Therefore, the aim of this study was to determine the impact of land-use change on the temporal and spatial variability in SOC at the county scale. A semi-arid zone (Aohan County, Northeast China) covering a surface of 3800 km(2) was selected for this study. SOC data for 65 and 182 soil samples from 1985 and 2021, respectively, were collected for major land-use types (forestland, farmland, grassland, and sandy land) across Aohan County to a depth of 20 cm. The impacts of different land-use types and land-use changes on SOC were evaluated. The results showed that land-use change enhanced the spatial variability in SOC over the last 36 years. The mean SOC in 2021 (7.49 g kg(-1)) was significantly higher than that in 1985 (6.91 g kg(-1)). Converting sandy land into grassland and farmland into forest or grassland would lead to significant accumulation of SOC, while the depletion of SOC occurred after grassland afforestation. The balance between aboveground biomass inputs and SOC decomposition was the determining reason that affected the accumulation of SOC. Vegetation restoration due to land-use change could alter both soil texture and the C/N ratio and could have positive effects on ecosystem recovery.
英文关键词	county scale land-use change spatial pattern distribution spatial variability
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001076788000001
WOS关键词	LAND-USE CHANGE ; AGRICULTURAL SOILS ; AFFORESTATION ; DYNAMICS ; STORAGE ; IMPACT ; FRACTIONS ; GRASSLAND ; STABILITY ; AGGREGATE
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/399069
推荐引用方式 GB/T 7714	Li, Long,Dong, Xiaoyu,Sheng, Yan,et al. Temporal and Spatial Changes in Soil Organic Carbon in a Semi-Arid Area of Aohan County, Chifeng City, China[J],2023,15(18).
APA	Li, Long,Dong, Xiaoyu,Sheng, Yan,Zhang, Peng,Zhang, Shangxuan,&Zhu, Zhizhuo.(2023).Temporal and Spatial Changes in Soil Organic Carbon in a Semi-Arid Area of Aohan County, Chifeng City, China.WATER,15(18).
MLA	Li, Long,et al."Temporal and Spatial Changes in Soil Organic Carbon in a Semi-Arid Area of Aohan County, Chifeng City, China".WATER 15.18(2023).