干旱区生态环境知识资源中心(Arid): Assessment of soil organic and inorganic carbon stock at different soil depths after conversion of desert into arable land in the hot arid regions of India

Arid

DOI	10.1080/17583004.2021.1893128
	Assessment of soil organic and inorganic carbon stock at different soil depths after conversion of desert into arable land in the hot arid regions of India
	Moharana, Pravash Chandra; Jena, Roomesh Kumar; Kumar, Nirmal; Singh, Ram Sakal; Rao, Sajjan Singh
通讯作者	Moharana, PC (corresponding author), ICAR Natl Bur Soil Survey & Land Use Planning, Reg Ctr, Udaipur 313001, Rajasthan, India.
来源期刊	CARBON MANAGEMENT
ISSN	1758-3004
EISSN	1758-3012
出版年	2021
卷号	12 期号:2 页码:153-165
英文摘要	Soil organic carbon (SOC) and inorganic carbon (SIC) are important carbon reservoirs in terrestrial ecosystems. But, little attention was paid to carbon dynamics in hot arid regions of India. In order to assess the carbon stock after conversion of desert into irrigated arable land in arid regions, the variability of SOC and SIC concentrations in the Suratgarh block of Rajasthan, India were analyzed using geostatistics. Soil samples were collected from depths of 0-15 cm, 15-30 cm, 30-60 cm and 60-90 cm at 150 sampling sites in the study area over an area of 3000 km(2). The coefficient of variation (CV) for SOC and SIC was high for all depths (> 35%). Geostatistical analysis showed that spherical, circular, Gaussian and exponential models were the best-fit models for soil carbon stocks. The average stock of SOC and SIC were 4.55 and 10.9 Mg ha(-1) in the 0-15 cm soil layer, and 3.02 Mg ha(-1) SOC and 12.42 Mg ha(-1) SIC in the 15-30 cm soil layer, respectively. Our results showed that SOC and SIC stocks over 0-90 cm were 15.54 and 76.71 Mg ha(-1), respectively. There was significantly positive correlation (r = 0.33, p < 0.01) between SOC and SIC stock in 0-90 cm depth. Our study suggested that increasing SOC might lead to an increase in SIC stocks after conversion of desert into irrigated arable land. Thus the study highlights the importance of SIC in the carbon cycle of India's arid region.
英文关键词	Soil organic carbon soil inorganic carbon spatial variability hot arid ecosystem
类型	Article
语种	英语
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000626056000001
WOS类目	Environmental Sciences ; Environmental Studies
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/2XILL650/349784
作者单位	[Moharana, Pravash Chandra; Singh, Ram Sakal; Rao, Sajjan Singh] ICAR Natl Bur Soil Survey & Land Use Planning, Reg Ctr, Udaipur 313001, Rajasthan, India; [Jena, Roomesh Kumar] ICAR Natl Bur Soil Survey & Land Use Planning, Reg Ctr, Jorhat, Assam, India; [Kumar, Nirmal] ICAR Natl Bur Soil Survey & Land Use Planning, Nagpur, Maharashtra, India
推荐引用方式 GB/T 7714	Moharana, Pravash Chandra,Jena, Roomesh Kumar,Kumar, Nirmal,et al. Assessment of soil organic and inorganic carbon stock at different soil depths after conversion of desert into arable land in the hot arid regions of India[J],2021,12(2):153-165.
APA	Moharana, Pravash Chandra,Jena, Roomesh Kumar,Kumar, Nirmal,Singh, Ram Sakal,&Rao, Sajjan Singh.(2021).Assessment of soil organic and inorganic carbon stock at different soil depths after conversion of desert into arable land in the hot arid regions of India.CARBON MANAGEMENT,12(2),153-165.
MLA	Moharana, Pravash Chandra,et al."Assessment of soil organic and inorganic carbon stock at different soil depths after conversion of desert into arable land in the hot arid regions of India".CARBON MANAGEMENT 12.2(2021):153-165.