干旱区生态环境知识资源中心(Arid): Assessment of Sequestered Organic Carbon and Its Pools Under Different Agricultural Land-Uses in the Semi-Arid Soils of South-Western Punjab, India

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DOI	10.1007/s42729-019-00137-5
	Assessment of Sequestered Organic Carbon and Its Pools Under Different Agricultural Land-Uses in the Semi-Arid Soils of South-Western Punjab, India
	Mandal, Agniva; Toor, A. S.; Dhaliwal, S. S.
通讯作者	Dhaliwal, S. S.
来源期刊	JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
ISSN	0718-9508
EISSN	0718-9516
出版年	2020
卷号	20 期号:1 页码:259-273
英文摘要	This is a study of long-term impact of agricultural land-uses on soil organic carbon (SOC) sequestration, its depth-wise distribution among some selected carbon pools, and their contribution towards loss of C through mineralization as CO2 to understand the present situation as well as to elucidate future strategies. Soil samples from croplands, horticultural lands, and uncultivated lands in semi-arid India (south-western Punjab) were assessed for basic physico-chemical properties, SOC, SOC stock, KMnO4-oxidizable C (KOC), particulate organic C (POC), and C mineralization (CO2-C-cum). Orchards showed highest potential to sequester carbon imparting a trend of horticulture > croplands > uncultivated lands regarding SOC and its pools. Weighted mean values showed the similar trend where croplands and uncultivated lands were mostly at par. Up to 90 cm depth orchards exhibited highest SOC stock (74.89 Mg ha(-1)) followed by croplands (53.87 Mg ha(-1)) and uncultivated lands (43.72 Mg ha(-1)). Decrease in C along the profile was pronounced under croplands. The studied pools were positively correlated with highest magnitude observed in between POC and SOC (r = 0.831, P = 0.01). Least positive linear relation with C mineralization was exhibited by POC particularly under horticulture, and highest C mineralization was recorded in the case of KOC under cultivation. Due to having greater POC contents which is less susceptible to mineralization loss, horticulture exhibited long-term stability of soil C than croplands. Croplands suggest faster loss of soil C for the presence of labile KOC fraction in a comparatively higher extent. Therefore, inclusion of horticultural land-use could be considered as a positive strategy to maintain the future productivity as well as sustainability of the studied area where intensive cultivation is prevailed.
英文关键词	Land-uses (croplands horticulture uncultivated lands) Soil organic carbon pools (SOC POC KOC CO2-C-cum) SOC stock C sequestration
类型	Article
语种	英语
国家	India
收录类别	SCI-E
WOS记录号	WOS:000500312000002
WOS关键词	WHEAT CROPPING SYSTEM ; MICROBIAL BIOMASS ; CO2 EFFLUX ; MATTER FRACTIONS ; NO-TILL ; MANAGEMENT ; DYNAMICS ; NITROGEN ; ROOT ; SEQUESTRATION
WOS类目	Plant Sciences ; Environmental Sciences ; Soil Science
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology ; Agriculture
EI主题词	2019-12-03
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311549
作者单位	Punjab Agr Univ, Dept Soil Sci, Ludhiana 141004, Punjab, India
推荐引用方式 GB/T 7714	Mandal, Agniva,Toor, A. S.,Dhaliwal, S. S.. Assessment of Sequestered Organic Carbon and Its Pools Under Different Agricultural Land-Uses in the Semi-Arid Soils of South-Western Punjab, India[J],2020,20(1):259-273.
APA	Mandal, Agniva,Toor, A. S.,&Dhaliwal, S. S..(2020).Assessment of Sequestered Organic Carbon and Its Pools Under Different Agricultural Land-Uses in the Semi-Arid Soils of South-Western Punjab, India.JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION,20(1),259-273.
MLA	Mandal, Agniva,et al."Assessment of Sequestered Organic Carbon and Its Pools Under Different Agricultural Land-Uses in the Semi-Arid Soils of South-Western Punjab, India".JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION 20.1(2020):259-273.