STRIP MINE RECLAMATION IN USSR, WEST GERMANY AND USA

Author(s):  
Richard L. Hodder
1979 ◽  
Vol 11 (1) ◽  
pp. 157-161 ◽  
Author(s):  
Lowell Catlett ◽  
Michael Boehlje

Surface mining, until recent years, concentrated on the recovery of the minerals rather than the recovery of the land. From 1870 to 1930 more than 1.3 billion tons of coal were mined and roughly 250,000 acres were disturbed. In the period 1930-1971, 3,357,000 acres of land were disturbed by surface mining. Approximately 43 percent of this total (1,436,000 acres) was partially or totally reclaimed. Since 1971 most surface-mined land has undergone at least partial reclamation, depending on the state where mining took place. If the nation's estimated 1 trillion tons of coal reserves were developed, approximately 200 million acres would be disturbed by surface mining in the three major coal producing regions (Appalachia, Midwest, and the Mountain West; Figure 1). Evaluation of the economic cost of reclamation to meet these laws, and (3) to analyze the effects of these costs on different coal producing regions.


2012 ◽  
Vol 58 (No. 2) ◽  
pp. 68-75 ◽  
Author(s):  
L. Růžek ◽  
M. Růžková ◽  
K. Voříšek ◽  
J. Vráblíková ◽  
P. Vráblík

Slit seeding (sowing into shallow cuts to the soil surface) was evaluated on coal mine reclamation in the North Bohemian Brown Coal Basin (Czech Republic) between 2001 and 2008, on plots both with and without biodegradable waste enrichment. Prior to experimentation (in 2000, once) were applied dehydrated, anaerobically digested wastewater sludge, 200 (41) t/ha fresh mass (dry mass), together with paper mill waste, 400 (131) t/ha, and bark substrate Envima, 400 (145) t/ha. Spontaneous herbaceous cover was enhanced each end of April from 2001 to 2003 by slit seeded grass-legume mixture containing Festuca pratensis L. (46%); Lotus corniculatus L. (22%); Coronilla varia L. (18%); Festuca rubra L. (9%); and Medicago lupulina L. (5%). All slit seeded species proliferated better on surface strip mine deposits without biodegradable waste enrichment and brought beneficial changes in a number of parameters over the ensuing five years due to lower competition with native expanding eutrophic species including Calamagrostis epigejos L.; Cardaria draba L.; Urtica dioica L.; and Galium aparine L. Available organic carbon (extracted from field-moist soil by 0.5 mol/L K<sub>2</sub>SO<sub>4</sub>) showed a notable tendency toward values 10&ndash;66 mg C/kg DM (dry mass), microbial biomass 302&ndash;1131 mg C/kg DM, basal respiration 3.9&ndash;5.8 mg C/kg DM/h, and metabolic quotient (basal respiration/microbial biomass carbon) &times; 1000 = 5.2&ndash;7.9. &nbsp; &nbsp;


Author(s):  
James E. Carrel ◽  
Kelman Wieder ◽  
Virginia Leftwich ◽  
Steven Weems ◽  
Qair L. Kucera ◽  
...  

1983 ◽  
Vol 61 (6) ◽  
pp. 1798-1803 ◽  
Author(s):  
Jennifer M. Kiernan ◽  
James W. Hendrix ◽  
Dale M. Maronek

Abandoned strip-mine sites in Kentucky which were mostly naturally revegetated were examined for the presence of endomycorrhizal fungi in the rhizospheres of established trees and other plants. Soil pH ranged from 3.2 to 7.1. Sixty-five percent of root samples examined were found to be mycorrhizal. Eight Glomus, three Gigaspora, and two Acaulospora species were positively identified. Plants sampled had one to eight different mycorrhizal species associated with them. The mean number of species per plant was 3.2. Spore numbers ranged from 0.4 to 53.0 spores per gram soil, with a mean value of 12.3 spores per gram. Strip-mine sites such as these may be a good source of ecologically adapted endomycorrhizal fungi for use in strip-mine reclamation.


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