Comparative production of <i>Larrea divaricata</i> Cav. on three geomorphic surfaces in southern New Mexico

TitleComparative production of Larrea divaricata Cav. on three geomorphic surfaces in southern New Mexico
Publication TypeThesis
Year of Publication1970
AuthorsBurk JHarlan
Number of Pages40
Date Published1970
UniversityNew Mexico State University
CityLas Cruces, New Mexico
Thesis TypePh.D. Dissertationspp
Call Number00028
Keywordsdissertation, dissertations, geomorphology,Larrea, Larrea,geomorphology, Larrea,phenology, Larrea,productivity, phenology,Larrea, productivity,Larrea, theses, thesis
AbstractNet above ground productivity was measured for 3 years on creosotebush (Larrea divaricata Cav.) occurring on three geomorphic surfaces which differed in age and profile characteristics. Rates of stem elongation, fruit production, flower production, and accumulation of secondary wood were ascertained for each of the geomorphic surfaces. Growth rates varied among plants of the different surfaces, but when the net production of stands on each surface were compared the surfaces were remarkably similar. Statistically significant differences were present in both growth and net productivity between years. Creosotebush seems to have a great capacity for adjusting to sites of broad ecological amplitude with no apparent effect upon its ability to fix energy.