@article {51010,
	title = {Spatial heterogeneity in Chihuahuan Desert vegetation: implications for sampling methods in semi-arid ecosystems},
	journal = {Journal of Arid Environments},
	volume = {47},
	year = {2001},
	note = {//NMSU,USDA//LTER IV//},
	month = {2001},
	pages = {257-270},
	abstract = {<p>Patchiness of above-ground vegetation, such as that in semi-arid grasslands and shrublands, can pose problems in sampling plant cover, biomass and productivity. We present a method of measuring above-ground plant biomass and production that can be applied consistently among vegetation types and that generates seasonal, spatially-explicit results. Results from 15 sites within the Jornada Basin (Chihuahuan Desert, New Mexico, USA) confirm considerable patchiness and non-normal distributions of plant biomass, even in grasslands. However, tests of adequacy of sample size and of sample error associated with the regression-based estimates of biomass confirmed that the estimates of above-ground net primary productivity are sufficiently precise to be useful in comparisons of both shrub-dominated and grassland sites.</p>
},
	keywords = {article, articles, Bouteloua, net primary production, ecosystem, plant production, journal, journals, Larrea, net primary production, net primary production, plants, net primary production, Prosopis, net primary production, spatial heterogeneity, technique, aboveground NPP},
	doi = {10.1006/jare.2000.0678},
	url = {files/bibliography/JRN00345.pdf},
	author = {L. Huenneke and Clason, Dennis and E. Muldavin}
}
