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Accumulation of Nitrogen in Minesoils Seeded to Black Locust
Author(s) -
Jencks E. M.,
Tyron E. H.,
Contri M.
Publication year - 1982
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1982.03615995004600060033x
Subject(s) - robinia , locust , soil water , environmental science , hardwood , overburden , nitrogen , agronomy , zoology , soil science , chemistry , geology , ecology , biology , mining engineering , organic chemistry
Nitrogen accumulation in minesoils developing in replaced coal surface‐mine overburden seeded with black locust ( Robinia pseudoacacia L.) was surveyed. Nitrogen increased significantly with age from 5 to 18 years at depths of 0 to 5, 5 to 10, and 10 to 15 cm, until it equaled or exceeded that in adjacent, native soils; however, the rate of increase was slower in the lower depths. Averages of the N content in all three depths showed that the oldest age group of minesoils (16 to 18 years) accumulated 2,974 kg/ha under black locust, which was slightly higher than the 2,808 kg/ha of N found in an adjacent native soil under mixed hardwood.