Restoring soil carbon in marginal land of Indian Himalayas: Impact of crop intensification and conservation tillage. (15th September 2022)
- Record Type:
- Journal Article
- Title:
- Restoring soil carbon in marginal land of Indian Himalayas: Impact of crop intensification and conservation tillage. (15th September 2022)
- Main Title:
- Restoring soil carbon in marginal land of Indian Himalayas: Impact of crop intensification and conservation tillage
- Authors:
- Das, Anup
Babu, Subhash
Datta, M.
Kumar, Sanjeev
Singh, Raghavendra
Avasthe, Ravikant
Rathore, S.S.
Yadav, S.K.
Singh, Vinod K. - Abstract:
- Abstract: Soil carbon (C) loss is the prime sign of land degradation, and C pools have a great impact on soil quality and climate change mitigation. Hence, a field experiment was conducted for three consecutive years to assess the impact of crop intensification and conservation tillage practices on changes in the C pool at different soil depths of marginal land of the Indian Himalayas. The experiment consisted of two intensified cropping systems viz., CS1-Summer maize ( Zea mays L.) –rainy season maize–lentil ( Lens esculenta L.) and CS2-Summer maize–rainy season maize–mustard ( Brassica juncea (L.) Czern) and five tillage practices viz., No-till (NT); NT + live mulch of cowpea (NT + LMC); reduced tillage (RT); RT + LMC and conventional tillage (CT). Results revealed that CS2 produced significantly higher biomass, C retention efficiency (9.85%), and sequestrated greater C (0.42 Mg ha −1 yr −1 ) in the soil system than CS1. Of the various tillage practices, RT + LMC registered higher biomass and recycled greater biomass and C than those under other tillage practices. However, the highest soil organic carbon (SOC) content (7.03 g kg −1 ) and pool (9.62 Mg ha −1 ) in 0–10 cm depth were observed under NT + LMC. The non-labile C pool size under NT in 0–10 cm and 10–20 cm depths was significantly greater than those under CT. The NT + LMC sequestrated significantly higher SOC (0.57 Mg ha −1 yr −1 ) than other tillage practices. Thus, the study indicated that the adoption of anAbstract: Soil carbon (C) loss is the prime sign of land degradation, and C pools have a great impact on soil quality and climate change mitigation. Hence, a field experiment was conducted for three consecutive years to assess the impact of crop intensification and conservation tillage practices on changes in the C pool at different soil depths of marginal land of the Indian Himalayas. The experiment consisted of two intensified cropping systems viz., CS1-Summer maize ( Zea mays L.) –rainy season maize–lentil ( Lens esculenta L.) and CS2-Summer maize–rainy season maize–mustard ( Brassica juncea (L.) Czern) and five tillage practices viz., No-till (NT); NT + live mulch of cowpea (NT + LMC); reduced tillage (RT); RT + LMC and conventional tillage (CT). Results revealed that CS2 produced significantly higher biomass, C retention efficiency (9.85%), and sequestrated greater C (0.42 Mg ha −1 yr −1 ) in the soil system than CS1. Of the various tillage practices, RT + LMC registered higher biomass and recycled greater biomass and C than those under other tillage practices. However, the highest soil organic carbon (SOC) content (7.03 g kg −1 ) and pool (9.62 Mg ha −1 ) in 0–10 cm depth were observed under NT + LMC. The non-labile C pool size under NT in 0–10 cm and 10–20 cm depths was significantly greater than those under CT. The NT + LMC sequestrated significantly higher SOC (0.57 Mg ha −1 yr −1 ) than other tillage practices. Thus, the study indicated that the adoption of an intensified maize-based system under RT + LMC or NT + LMC would increase SOC storage and C sequestration in marginal lands of the Indian Himalayas. Highlights: Cowpea live mulch (LMC) based conservation tillage enhanced total C production. Reduced tillage (RT)+ LMC recycled greater biomass and C than NT + LMC system. No-till (NT) +LMC had the highest SOC pool (9.62 Mg ha −1 ) in 0–10 cm depth. NT/RT + LMC achieved 10.16–17.39‰ C storage per year. … (more)
- Is Part Of:
- Journal of environmental management. Volume 318(2022)
- Journal:
- Journal of environmental management
- Issue:
- Volume 318(2022)
- Issue Display:
- Volume 318, Issue 2022 (2022)
- Year:
- 2022
- Volume:
- 318
- Issue:
- 2022
- Issue Sort Value:
- 2022-0318-2022-0000
- Page Start:
- Page End:
- Publication Date:
- 2022-09-15
- Subjects:
- No-Till -- Cowpea live mulching -- Carbon retention efficiency -- Carbon pools
Environmental policy -- Periodicals
Environmental management -- Periodicals
Environment -- Periodicals
Ecology -- Periodicals
363.705 - Journal URLs:
- http://www.sciencedirect.com/science/journal/03014797 ↗
http://www.elsevier.com/journals ↗
http://www.idealibrary.com ↗
http://firstsearch.oclc.org ↗ - DOI:
- 10.1016/j.jenvman.2022.115603 ↗
- Languages:
- English
- ISSNs:
- 0301-4797
- Deposit Type:
- Legaldeposit
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- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 4979.383000
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