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Leaf litterfall, fine root production and turnover in four major tree species of the semi-arid region of India

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Title Leaf litterfall, fine root production and turnover in four major tree species of the semi-arid region of India
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Creator Pramod Jha, Kamal Prasad Mohapatra
 
Subject Leaf litterfall . Fine root production . Nutrient content . Semi-arid species
 
Description Not Available
Litterfall and fine root production is a
major pathway for carbon and nutrient cycling in
forest ecosystems. We investigated leaf litterfall, fineroot
mass, production and turnover rate in the upper
soil (0–30 cm) under four major tree species
(Leucaena leucocephala, Acacia nilotica, Azadirachta
indica, Prosopis juliflora) of the semi-arid
region of India. All the four tree species showed an
unimodal peak of leaf litterfall with distinct seasonality.
Leucaena leucocephala and Acacia nilotica had
maximum leaf litterfall between September and
December while Azadirachta indica and Prosopis
juliflora shed most of their leaves between February
and May. Annual leaf litterfall of the four species
ranged from 3.3 Mg ha−1 (Leucaena leucocephala) to
8.1 Mg ha−1 (Prosopis juliflora). Marked seasonal
variations in amount of fine root biomass were
observed in all the four tree species. Fine root
production was maximum in Prosopis juliflora
(171 g m−2 y−1) followed by Azadirachta indica
(169 g m−2 y−1), Acacia nilotica (106 g m−2 y−1) and
Leucaena leucocephala (79 g m−2 y−1). Fine root
biomass showed a seasonal peak after the rainy
season but fell to its lowest value during the winter
and dry summer season. Fine root turnover rate
ranged from 0.56 to 0.97 y−1 and followed the order
Azadirachta indica > Leucaena leucocephala >
Prosopis juliflora > Acacia nilotica. The results of
this study demonstrated that Prosopis juliflora and
Azadirachta indica had greater capability for maintaining
site productivity as evidenced from greater
leaf litterfall and fine root production.
Not Available
 
Date 2020-05-21T09:42:55Z
2020-05-21T09:42:55Z
2009-05-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/36024
 
Language English
 
Relation Not Available;
 
Publisher Not Available