干旱区生态环境知识资源中心(Arid): A geospatial approach to assess climate change impact on soil organic carbon in a semi-arid region

Arid

DOI	10.1007/s42965-020-00100-x
	A geospatial approach to assess climate change impact on soil organic carbon in a semi-arid region
	Jain, Jagriti; Mitran, Tarik
通讯作者	Mitran, T
来源期刊	TROPICAL ECOLOGY
ISSN	0564-3295
EISSN	2661-8982
出版年	2020
卷号	61 期号:3 页码:412-428
英文摘要	The changes in the atmosphere and climate influence soils by disturbing the functioning of hydrologic and biogeochemical cycles, specifically that of Carbon (C). The impact of the climatic change on soil organic carbon (SOC) stocks over a semi-arid region of India (Medak district, Telangana) was assessed using remote sensing-based indices and geostatistical modeling. The global soil organic carbon (GSOC) stocks (0-30 cm depth) at 1 km spatial resolution and a set of environmental variables like Normalized difference vegetation index (NDVI), Net primary productivity (NPP), slope, elevation and various climate parameters such as rainfall, temperature, etc., were used to estimate the SOC stocks in current and future (2050 and 2070) climate change projections using regression kriging (RK) technique. The results of the study indicate that among the environmental covariates rainfall was the predominant factor that controls the SOC stocks in the study region. The current SOC stock in the study area was estimated as 25.4 Tg in top 0-30 cm depth. The future (2050 and 2070) SOC stocks were predicted using climate parameters of three Global Circulation Models (GCMs); namely CCSM4, HadGEM2-AO, and HadGEM2-ES. Results show a reduction in SOC stocks in 2050 and 2070 due to the projected climate change in the study region. The projected decrease in total SOC stocks varies from 1.12 to 4.93 and 0.45 to 4.49 Tg by 2050 and 2070 respectively. The uncertainty associated with the prediction of the current stock of SOC was 8.44%. The uncertainties associated with the SOC prediction in various future climate change scenarios for the year 2050 and 2070 were in the range of 8.83-10.48% and 8.15-10.26% respectively.
英文关键词	Climate change Future climate change projections Regression kriging SOC stocks Semi-arid
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000562333300001
WOS关键词	STOCKS ; INDIA ; STORAGE ; MATTER ; FUTURE ; MOISTURE ; NITROGEN ; TEXTURE
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325801
作者单位	[Jain, Jagriti] Indian Inst Technol, Alternate Hydro Energy Ctr, Roorkee 247667, Uttarakhand, India; [Mitran, Tarik] Indian Space Res Org, Soil & Land Resources Assessment Div, Natl Remote Sensing Ctr, Hyderabad 500037, Telangana, India
推荐引用方式 GB/T 7714	Jain, Jagriti,Mitran, Tarik. A geospatial approach to assess climate change impact on soil organic carbon in a semi-arid region[J],2020,61(3):412-428.
APA	Jain, Jagriti,&Mitran, Tarik.(2020).A geospatial approach to assess climate change impact on soil organic carbon in a semi-arid region.TROPICAL ECOLOGY,61(3),412-428.
MLA	Jain, Jagriti,et al."A geospatial approach to assess climate change impact on soil organic carbon in a semi-arid region".TROPICAL ECOLOGY 61.3(2020):412-428.