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Leaf Litter Fall and Decomposition of Poplar (Populus deltoides) under Intensively Managed Wheat Based Agroforestry System

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Title Leaf Litter Fall and Decomposition of Poplar (Populus deltoides) under Intensively Managed Wheat Based Agroforestry System
Not Available
 
Creator N.K. Sharma,
N.M. Alam
Ramanjeet Singh
 
Subject Agroforestry, decomposition, litter, poplar, wheat
 
Description Not Available
Leaf litter decomposition is a fundamental process of ecosystem
functioning which is closely linked to the nutrient recycling for plant
growth. Leaf litter fall and decomposition pattern was studied in 3
and 4 years old poplar (Populus deltoides) planted as boundary
plantation in wheat based intensively managed agroforestry system.
Litter bags were randomly placed within 3m, 3 to 6m, 6 to 9m and
beyond 15 m distance from tree base line. Litter bags were removed
after 30 days (at crown root initiation stage of wheat), 90 days (at
reproductive stage of wheat), 140 days (at maturity of wheat), and
after one year of placement (before sowing of next wheat crop)
respectively for determining decomposition rate of leaf litter. Litter
fall was restricted up to a distance of 9 m from the tree line and total
-1 amount of 913.8 and 1291.8 kg ha was recorded with 3 and 4 years
old plantation. Fifty seven per cent of total leaf fall was recorded near
the tree line (0-3m) with 3 years old plantation which came down to
46 per cent with advancement of plantation age to 4 years. Loss in
weight revealed that 19.3 to 18.4 per cent loss in dry mass of leaf
litter was observed in control during first 30 days after placement,
whereas, loss in mass varied between 18.8 to 23.5 per cent under the
tree influence area during same period in both the years. It was found
that irrespective of distances 47 to 52.9 per cent mass of leaf litter
was lost up to harvesting of wheat. Maximum mass loss was recorded
near tree line (0-3 m distance) before harvesting of wheat. Overall,
the highest values (1.823 and 1.754) of decomposition constant (k)
were obtained in control in both 3 and 4 years old plantation,
respectively.
Not Available
 
Date 2020-03-05T08:37:43Z
2020-03-05T08:37:43Z
2013-12-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/33566
 
Language English
 
Relation Not Available;
 
Publisher Not Available