DOI: 10.1016/j.jenvman.2019.110002
论文题名: Studying the relationship between total organic carbon and soil carbon pools under different land management systems of Garo hills, Meghalaya
作者: Mishra G. ; Sarkar A.
刊名: Journal of Environmental Management
ISSN: 3014797
出版年: 2020
卷: 257 语种: 英语
英文关键词: Entisols
; Northeast himalaya
; Shifting cultivation
; Soil carbon pools
; Tea garden
Scopus关键词: carbon
; rubber
; agricultural land
; carbon sequestration
; Entisol
; high temperature
; land management
; land use change
; rainfall
; shifting cultivation
; soil carbon
; tea
; total organic carbon
; tropical region
; Article
; bulk density
; coffee
; Meghalaya
; plantation
; soil
; tillage
; total organic carbon
; climate change
; environmental protection
; India
; Garo Hills
; India
; Meghalaya
; Tura
; Carbon
; Climate Change
; Conservation of Natural Resources
; India
; Soil
英文摘要: The contribution of land uses in sequestering soil carbon (C) is a key question of research in tropical regions, where C emissions due to land use changes, extreme rainfall events and high temperatures can aggravate the global issue of climate change. In the present study, different pools of soil organic C were assessed, from shifting cultivation lands (jhum), rubber, tea garden and coffee plantations of Tura district in Meghalaya, which is located in Northeastern region (NER) of India. To achieve this goal, different parameters such as bulk density (BD), total organic carbon (TOC) and C pools, viz., very labile (CVL), labile (CL), less labile (CLL) and non-labile (CNL) were analyzed. The results indicated significant correlations among TOC and C pools in most land uses, except for CNL pool. Tea gardens showed the highest value of TOC stock (62.75 ± 1.47 t C ha−1) while the lowest was found in the jhum lands (33.34 ± 5.04 t C ha−1). Similarly, both the active (12.03 mg g−1) and passive (4.60 mg g−1) C pools were highest under tea gardens. CVL was found to be positively correlated with TOC and active carbon pool (ACP), while CLL was also positively correlated with passive carbon pool (PCP). This study indicates the potential of tea gardens as a promising C sequestering land use, which can be promoted in jhum lands to mitigate the negative impacts of climate change. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158930
Appears in Collections: 气候变化与战略
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作者单位: Rain Forest Research Institute, Jorhat, Assam 785001, India
Recommended Citation:
Mishra G.,Sarkar A.. Studying the relationship between total organic carbon and soil carbon pools under different land management systems of Garo hills, Meghalaya[J]. Journal of Environmental Management,2020-01-01,257