Effects of soil texture and precipitation on above-ground net primary productivity and vegetation structure across the Central Grassland region of the United States

TitleEffects of soil texture and precipitation on above-ground net primary productivity and vegetation structure across the Central Grassland region of the United States
Publication TypeJournal Article
Year of Publication1998
AuthorsLane D.R., Coffin D.P., Lauenroth W.K.
JournalJournal of Vegetation Science
Volume9
Pagination239-250
Date PublishedApril 1, 1998
ARIS Log Number091698
KeywordsFunctional type, grasses, Inverse-texture hypothesis, precipitation gradient, Regional analysis
Abstract

A potentially important organizing principle in arid and semi-arid systems is the inverse-texture hypothesis which predicts that plant communities on coarse-textured soils should have higher above-ground net primary productivity (ANPP) than communities on fine-textured soils; the reverse is predicted to occur in humid regions. Our objectives were: (1) to test predictions from the inverse-texture hypothesis across a regional precipitation gradient, and (2) to evaluate changes in community composition and basal cover on coarse-and fine-textured soils across this gradient to determine how these structural parameters may affect ANPP. Sites were located along a precipitation gradient through the Central Grassland region of the United States: mean annual precipitation ranges from 311 mm/y to 711 mm/y, whereas mean annual temperature ranges from 9 °C to 11 °C.

URL/files/bibliography/627.pdf
DOI10.2307/3237123