Potential effects of hydrogen sulfide gas from geothermal energy conversion on two plant species native to northern New Mexico

Technical Report · Wed Feb 01 04:00:00 EST 1984

DOI:https://doi.org/10.2172/5224449· OSTI ID:5224449

Gonzales, G J

Dry weight of topgrowth, water content of topgrowth, leaf nitrogen content, and leaf chlorophyll content were measured in well-watered, field-exposed little bluestem (Schizachyrium scoparium Nash.) and mountain brome (Bromus marginatus Nees.) plants fumigated with various mean levels of H/sub 2/S ranging from 0.05 to 3.58 ppM. The youngest fully expanded leaves were sampled for chlorophyll content after 60, 80, 100, and 140 and 60, 80, 120, and 140 h total of fumigation for little bluestem and mountain brome, respectively. All other responses were measured after 140 h total of fumigation. The plants received a 7-day fumigation-free period prior to the seventh week (140 h) of fumigations. Dry weight of little bluestem plants which received low concentrations of H/sub 2/S (0.11 ppM) increased by 94% of the control. Dry weight of little bluestem plants which received higher concentrations of H/sub 2/S (0.12 to 0.48 ppM) was reduced to the control level. At the highest H/sub 2/S concentration (2.39 ppM) dry weight of little bluestem was reduced by 44% of the control. Mountain brome was relatively unaffected at the different concentrations of H/sub 2/S until 3.58 ppM H/sub 2/S was received where dry weight was reduced by 37% of the control.

• Research Organization: Los Alamos National Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5224449
• Report Number(s): LA-9984-T; ON: DE84008370
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
150600* -- Geothermal Energy-- Environmental Aspects
AIR POLLUTION
CHALCOGENIDES
CONVERSION
ENERGY CONVERSION
ENVIRONMENTAL IMPACTS
FLUIDS
GEOTHERMAL ENERGY CONVERSION
GEOTHERMAL FLUIDS
GEOTHERMAL RESOURCES
GRASS
GROWTH
Geothermal Legacy
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
PLANT GROWTH
PLANTS
POLLUTION
RESOURCES
SULFIDES
SULFUR COMPOUNDS