Papers by Sharon A. Billings

	Controls on plant gas exchange across a grassland to shrubland gradient in Owens Valley, California
	Grassland and forest soil nitrogen transformations and microbial function in the North American Midwest
	Moisture availability as an influence on the stable oxygen and carbon isotopes of Quercus rubra tree-rings
	Water sources and nitrogen relations of grasses and shrubs in phreatophytic communities of the Great Basin Desert