Effects of endomycorrhizae on the establishment and growth of native shrubs on Paraho processed oil shale and disturbed native soil
The effects of vesicular-arbuscular mycorrhizae (VAM) on the establishment and growth of native shrubs on Paraho processd oil shale and disturbed native soil were investigated in a series of field and greenhouse experiments. The most common endophytes associated with native plant species were Glomus fasciculatus and G. mosseae. Seedlings of fourwing saltbush, big sagebrush, rubber rabbitbrush, and greasewood were inoculated with both G. fasciculatus and G. mosseae in a containerized system in the greenhouse. Inoculated and noninoculated shrubs were outplanted into processed shale and disturbed native soil in the field, and transplanted into the same media in the greenhouse, to study the effects of VAM on plant growth, survival, nutritional status and water use efficiency. Mycorrhizal shrubs were more effective than nonmycorrhizal shrubs in the uptake of water and phosphorus and mycorrhizal plants had greater shoot biomass, cover and height than nonmycorrhizal plants. VAM enhanced the survival of big sagebrush and rubber rabbitbrush, but had little effect of fourwing saltbush and greasewood. VAM are discussed in terms of their roles in disturbed and undisturbed communities, and the reconstruction of semiarid and arid ecosystems.
- OSTI ID:
- 5492391
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
041000* -- Oil Shales & Tar Sands-- Environmental Aspects
510500 -- Environment
Terrestrial-- Site Resource & Use Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
ARID LANDS
BIOLOGICAL EFFECTS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
ECOSYSTEMS
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GROWTH
HYDROGEN COMPOUNDS
LAND RECLAMATION
MATERIALS
MYCORRHIZAS
NONMETALS
OIL SHALES
OXYGEN COMPOUNDS
PARAHO PROCESS
PHOSPHORUS
PLANT GROWTH
PLANTS
SEEDLINGS
SHRUBS
SOILS
SURVIVAL TIME
TERRESTRIAL ECOSYSTEMS
UPTAKE
WATER