+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Estimation of plant biomass by spectral reflectance in an east african grassland

, : Estimation of plant biomass by spectral reflectance in an east african grassland. Journal of Range Management 36(2): 213-216

Canopy spectral reflectance measurements at 0.800 and 0.675 .mu.m were made in a grassland in Masai Mara Game Reserve, Kenya. The reflectance ratio (0.800/0.675 .mu.m) was a reliable predictor of green biomass, accounting for 70% of the variance in green biomass values. Significant error in the biomass estimates was shown to be due to plots which contained < 30% of the total vegetation in the live condition. Estimation error tended to increase when time of sampling departed from the interval of 1000-1400 h, although this trend was not statistically significant. The spectral reflectance technique can provide reliable estimates of plant biomass in grassland ecosystems where the proportion of live:total vegetation exceeds 30%.


DOI: 10.2307/3898165

Other references

West B.L.; Kozub F.J., 1975: Suppression of water intake in the presence of a secondary reinforcer previously conditioned to thirst reduction. Virginia Journal of Science 26(2): 103

Fernando R.B.rri; Mónica B.M.rtella; Joaquín L.N.varro, 2009: Nest-site habitat selection by Lesser Rheas Rhea pennata pennata in northwestern Patagonia, Argentina. Selection of nest-site habitat by a population of wild Lesser Rheas (Rhea pennata pennata) was studied in the northwestern Patagonia steppe, Argentina, during two reproductive seasons (2004/2005 and 2005/2006). Nest spatial distribution was compar...

Zurek, E.; Wen, X-Dong.; Hoffmann, R., 2011: (Barely) solid Li(NH3)4: the electronics of an expanded metal. The highly expanded metal, lithium(0)tetraamine, and its electronic structure is as full of complexity and surprises as the lithium solutions in anhydrous ammonia from which it crystallizes at 90 K. Our theoretical studies of the Phase II, Z = 8,...

Schmidt, T., 1969: The new cross sledge for the Haag-Streit slit lamp. Ophthalmologica. Journal International D'ophtalmologie. International Journal of Ophthalmology. Zeitschrift für Augenheilkunde 158(5): 622-623

Behar A.R.; Arancibia M.M., 2016: Maternal eating disorders and their influence on eating behavior of the children: a review of the literature. There is conclusive evidence about the influence of mothers with eating disorders (ED) on their children. To describe different aspects about mothers with ED and its implications in the feeding, growing and development in their children. A review...

Halvorson, H.O., 1960: The induced synthesis of proteins. Escherichia coli, Bacillus cereus, Pseudomonas saccharophila, Bacillus megaterium, Mycobacterium tuberculosis, Aerobacter aerogenes, Bacillus cadaveris, Staphylococcus aureus, Alealigenes faecalis and Shigella dysenteriae were used in this study.

Fiil, A.; Lenk, I.; Petersen, K.; Jensen, C.S.; Nielsen, K.K.; Schejbel, B.; Andersen, J.Reitan.; Lübberstedt, T., 2012: Nucleotide diversity and linkage disequilibrium of nine genes with putative effects on flowering time in perennial ryegrass (Lolium perenne L.). Optimization of flowering is an important breeding goal in forage and turf grasses, such as perennial ryegrass (Lolium perenne L.). Nine floral control genes including Lolium perenne CONSTANS (LpCO), SISTER OF FLOWERING LOCUS T (LpSFT), TERMINAL F...

Poller U., 1994: The Monchalpgneiss of the Silvretta Nappe, Graubunden; geochemistry and Sm-Nd model ages. The Monchalpgneiss belongs to the so-called "Older Orthogneisses" of the Silvretta nappe. Geochemical examinations of samples from several localities give a good idea of their classification and the tectonic setting. Sm-Nd whole rock dat...

Tirkey, T.; Pandey, S.D.; Sharma, G.L., 1998: Effect of nitrogen levels and time of application of NPK on yield and quality of in vitro raised banana cv. Dwarf Cavendish. Micropropagated bananas were grown at Raipur and given 100, 150, 200, 250 or 300 g N/plant as a basal dressing or in 3 or 5 equal split applications. Bunch weight increased as N rate increased and was higher when the N applications were split. Fiv...

Lennartz, B.; Kamra, S.K., 1998: Temporal variability of solute transport under vadose zone conditions. This study analysed the recurrence of solute leaching behaviour as estimated in two soil column tests emphasizing the preferential flow phenomenon. Twenty-four small-sized soil samples were subjected to two consecutive unsaturated steady-state flo...