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Impacts of Land Use on Pools and Indices of Soil Organic Carbon and Nitrogen in the Ghaggar Flood Plains of Arid India

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Title Impacts of Land Use on Pools and Indices of Soil Organic Carbon and Nitrogen in the Ghaggar Flood Plains of Arid India
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Creator Pravash Chandra Moharana
Roshan Lal Meena
Mahaveer Nogiya
Roomesh Kumar Jena, Gulshan Kumar Sharma, Sonalika Sahoo, Prakash Kumar Jha, Kumari Aditi and P. V. Vara Prasad
 
Subject carbon and nitrogen pools; soil quality; carbon and nitrogen management index; land use; arid environment
 
Description Research article
Changes in land use have several impacts on soil organic carbon (C) and nitrogen (N)
cycling, both of which are important for soil stability and fertility. Initially, the study area was
barren uncultivated desert land. During the late 1960s, the introduction of a canal in the arid region
converted the barren deserts into cultivated land. The objectives of the present study were to evaluate
the effects of various land use systems on temporal changes in soil organic C and N pools, and
to evaluate the usefulness of different C and N management indices for suitable and sustainable
land use systems under arid conditions. We quantified soil organic C and N pools in five different
land uses of the Ghaggar flood plains, in hot, arid Rajasthan, India. The study focused on five land
use systems: uncultivated, agroforestry, citrus orchard, rice–wheat, and forage crop. These land
use systems are 20 years old. Our results showed that total organic carbon (TOC) was highest
(7.20 g kg􀀀1) in the forage crop and lowest in uncultivated land (3.10 g kg􀀀1), and it decreased
with depth. Across different land uses, the very labile carbon (VLC) fraction varied from 36.11 to
42.74% of TOC. In comparison to the uncultivated system, forage cropping, rice–wheat, citrus orchard,
and agroforestry systems increased active carbon by 103%, 68.3%, 42.5%, and 30.6%, respectively.
Changes in management and land use are more likely to affect the VLC. In soil under the forage crop,
there was a considerable improvement in total N, labile N, and mineral N. Lability index of C (LIC),
carbon management index (CMI), and TOC/clay indices were more sensitive to distinguishing land
uses. The highest value of CMI was observed in the forage crop system followed by rice–wheat and
agroforestry. In the long term, adoption of the forage crop increased soil quality in the hot, arid desert
environment by enhancing CMI and VLC, which are the useful parameters for assessing the capacity
of land use systems to promote soil quality.
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Date 2024-02-16T14:54:53Z
2024-02-16T14:54:53Z
2022-07-28
 
Type Article
 
Identifier Moharana, P.C.; Meena, R.L.; Nogiya, M.; Jena, R.K.; Sharma, G.K.; Sahoo, S.; Jha, P.K.; Aditi, K.; Vara Prasad, P.V. Impacts of Land Use on Pools and Indices of Soil Organic Carbon and Nitrogen in the Ghaggar Flood Plains of Arid India. Land 2022, 11, 1180. https://doi.org/10.3390/ land11081180
ISSN: 2073-445X
http://krishi.icar.gov.in/jspui/handle/123456789/81426
 
Language English
 
Relation Not Available;
 
Publisher MDPI, Basel, Switzerland