|
Selenium and sulfur accumulation and soil selenium dissipation in planting of four herbaceous plant species in soil contaminated with drainage sediment rich in both selenium and sulfur
|
ABSTRACT
Four selenium (Se) nonaccumulator plant species, including a forage grass species, Tall Fescue (Festuca arundinacea Schreb.), a forage legume species, Alfalfa (Medicago saliva L.), a wetland species, Rush (Juncus tenuis Wild.), and a dry-land alkaline soil species, Saltgrass (Distichlis spicata L.), were grown in soil contaminated by agricultural drainage sediment having elevated levels of Se and sulfur (S). The above-ground plant tissues were consecutively harvested five tim...
Related newspaper, magazine, and journal articles from HighBeam Research
|
Threat seen to half of Earth's plant species
The Milwaukee Journal Sentinel
; Threat seen to half of Earth's plant species Study suggests human activities could be cause, especially in tropics Associated Press Friday, November 1, 2002 Washington -- Human activities are threatening to wipe out as many as half of the Earth's plant species, a study suggests. Earlier studies had
|
|
Half of plant species could face extinction
Chicago Sun-Times
; WASHINGTON--Human activities are threatening to wipe out as many as one-half of the Earth's plant species, a study suggests. Earlier studies had estimated that only about 13 percent of all plant species are in danger of extinction. But Nigel C. A. Pitman of Duke University and Peter M. Jorgensen of
|
|
The effects of fire on invasive plant species and the woodpecker community in the Black Hills, South Dakota. (Social Science, Environmental, Field Biology Poster Session 02:00 PM-03:00 PM).(Abstract)
The Ohio Journal of Science
; BOARD 17 Conservation biology now recognizes exotic species as second only to habitat destruction in the loss of biodiversity because of their contribution to native species extinction. Natural disturbance factors can facilitate the Invasion and establishment of non-native species. A disturbance
|
 "The Independent (Bangladesh)")
|
A home for plant species, THE INDEPENDENT
The Independent (Bangladesh)
; The Independent (Bangladesh) 05-12-2000 When it was set up in city's Mirpur area, the government had an uphill task to give it a full shape. Now it's a full fledged National Herbarium, a home to 1,500 plant species. A project of Agriculture Extension Department, the herbarium has so far preserved
|
|
Interactions between plant species and earthworm casts in a calcareous grassland under elevated CO2.
Ecology
; INTRODUCTION Numerous studies suggest that rising atmospheric C[O.sub.2] will alter the competitive interactions among plant species and thus lead to changes in the structure and composition of plant communities (e.g., Bazzaz 1990, Korner and Bazzaz 1996). These interactions are influenced strongly
|
