SEASONAL PARTITIONING OF NITROGEN BY PLANTS AND SOIL MICROORGANISMS IN AN ALPINE ECOSYSTEM. From: Ecology | Date: September 1, 1999| Author: Jaeger III, Charles H.; Monson, Russell K.; Fisk, Melany C.; Schmidt, Steven K. | COPYRIGHT 1999 Ecological Society of America. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group.Copyright information

The seasonal dynamics of plant N assimilation and microbial N immobilization were studied in an alpine ecosystem to evaluate temporal patterns of plant and microbial N partitioning and the potential for plant vs. microbial competition for N. Plant N uptake was higher in the first half of the growing season than later in the season, as indicated by changes in biomass N and by 15N uptake. Microbial N pools were low during the first half of the growing season (9.5 g N/[m.sup.2] on 1 June) and ...

Related newspaper, magazine, and journal articles from HighBeam Research

	SEASONAL PARTITIONING OF NITROGEN BY PLANTS AND SOIL MICROORGANISMS IN AN ALPINE ECOSYSTEM. Ecology ; INTRODUCTION The assimilation of inorganic nitrogen into plant and soil microbial biomass is essential for the maintenance of fertility and productivity in terrestrial ecosystems. Nitrogen is the element most likely to limit productivity in natural ecosystems (Vitousek and Howarth 1991). There is
	DELICATE ECOSYSTEMS UNDER ASSAULT FIRST DOMINOES BEGIN TO FALL AS ACIDITY LEVELS CONTINUE TO INCREASE.(News) Rocky Mountain News (Denver, CO) ; Byline: Jim Erickson, Rocky Mountain News NIWOT RIDGE -- The dominoes are tumbling one by one, and the end point will be dead fish and dead trees in Colorado's high country ...
	Earth's uneasy breathing measured on Niwot Ridge Gases collected at 11,500 feet reveal nature's responses to warming world Rocky Mountain News ; ... Colorado scientists have spotted could be bad news for the future health of the state's mountain ... that hypothesis." Early springs are bad news But other researchers aren't convinced ... shift to earlier springs, the trend is bad news for Colorado forests, Monson and Schimel ...
	Earth's uneasy breathing measured on Niwot Ridge Gases collected at 11,500 feet reveal nature's responses to warming world.(News) Rocky Mountain News (Denver, CO) ; Byline: Jim Erickson, Rocky Mountain News NIWOT RIDGE -- Searching for signs of global ... Colorado scientists have spotted could be bad news for the future health of the state's mountain ... that hypothesis. Early springs are bad news But other researchers aren't convinced ...
	DELICATE ECOSYSTEMS UNDER ASSAULT FIRST DOMINOES BEGIN TO FALL AS ACIDITY LEVELS CONTINUE TO INCREASE Rocky Mountain News ; The dominoes are tumbling one by one, and the end point will be dead fish and dead trees in Colorado's high country, according to University of Colorado biogeochemist Mark Williams. "The wilderness is not going to fall apart in the next year, but we're kicking over the first dominoes now," said

See all results.