Results 11 to 20 of about 3,662,213 (188)

Above-Ground Phytomass Dynamics in a Grassland Steppe of Patagonia, Argentina [PDF]

Journal of Range Management, 1990
Aerial phytomass and litter dynamics of a grassland steppe in Patagonia, Argentina, were studied at either monthly or bimonthly intervals for 2 years. This area is characterized by a cold and wet winter (June to September) and a warm and dry summer (December to March).
Guillermo E. Defosse, M. B. Bertiller, J. O. Ares   +2 more
core   +3 more sources

REMOTE SENSING METHODS FOR PHYTOMASS ESTIMATION AND MAPPING OF TUNDRA VEGETATION [PDF]

Geography, Environment, Sustainability, 2010
Mapping of above-ground phytomass provides a baseline for monitoring climate-induced changes, especially in the northern regions. This is important for practical applications, such as assessing quality of pastures and defining reindeer migration routes ...
Elena Golubeva, Yurate Plyushkyavichyute, Gareth Rees, Olga Tutubalina   +3 more
doaj   +2 more sources

Above-ground phytomass and below-ground biomass production of Salvia verbenaca Linné

Ecologia mediterranea, 2002
Salvia verbenaca L. est une herbacée rudérale très commune dans la région méditerranéenne. Ses fleurs sont très prisées pour des raisons esthétiques. Cette espèce présente un degré d’adaptation important pour des habitats pauvres en ressources. L’objectif de cette étude a consisté à analyser la production de la phytomasse et de la biomasse racinaire ...
Conceição Castro, Marcel, Roquete, Carlos, Gazarini, Luís   +2 more
openaire   +3 more sources

Seasonal Variation in Above-Ground Annual and Perennial Phytomass of an Arid Rangeland in Libya [PDF]

Journal of Range Management, 1986
An Aristida pungens-Retama r&m rangeland in the rrid Jefhra plain in Libya produced 2,000 and 950 kg (dry matter) ha-’ of net above-ground phytomass with 200 mm and 171 mm of rainfall during the 1977178 and 78179 growing seasons, reavly. Annual plants contributed 460 and 300 kg (dry matter ha ) in the 2 seasons, respectively.
Gintzburger, G.
openaire   +4 more sources

Community structure and stock of phytomass of fallow abandoned arable lands in the Turano-Uyuk basin (Republic of Tyva)

Трансформация экосистем
The features of overgrowing of abandoned arable land in the steppe intermountain TuranUyuk basin in the Republic of Tyva, the floral composition of communities, the structure of plant matter, the stages of healing and their duration are studied. The work
N. I. Makunina, A. D. Sambuu
doaj   +2 more sources

SOME MATHEMATICAL MODELS OF COMPONENTS OF ABOVE-GROUND PHYTOMASS OF BEECH TREES DEPENDING ON THEIR ASSESSMENTS INDEXES IN THE PREVAILING FOREST VEGETATION TYPES OF POLONYNSKY RANGE OF THE UKRAINIAN CARPATHIANS [PDF]

Scientific Bulletin of UNFU, 2018
Розроблені на основі значень діаметра та висоти стовбура моделі адекватно описують динаміку середніх значень відповідних фракцій надземної фітомаси стовбура дерев бука лісового в типах лісорослинних умов С3 та D3. Для отриманих змодельованих значень компонентів надземної фітомаси дерев бука лісового в обох досліджуваних типах лісорослинних умов ...
H. H. Hrynyk, A. I. Zadorozhnyy
openaire   +3 more sources

Elephant Rewilding Indirectly Affects Rodent Site-Use and Behavior by Moderating Coarse Woody Debris Density. [PDF]

Ecol Evol
Megaherbivores such as African savannah elephants are ecosystem engineers that modify vegetation structure, yet the cascading effects of these changes on smaller fauna remain poorly understood. We examined how elephant rewilding affected coarse woody debris (CWD) density and the behavior of the Natal multimammate mouse in lowveld savannah, South Africa,
Gordon CE, Allin P, Greve M, Svenning JC.   +3 more
europepmc   +2 more sources

Biodiversity loss disrupts seasonal carbon dynamics in a species-rich temperate grassland. [PDF]

Ecology
Abstract Biodiversity loss poses a significant threat to ecosystem functioning. However, much of the empirical evidence for these effects is based on artificial experiments that often fail to simulate the structure of natural communities. Hence, it is still unclear whether natural diversity losses would significantly affect the functioning of “real ...
Segrestin J, Lisner A, Götzenberger L, Hájek T, Janíková E, Jílková V, Konečná M, Švancárová T, Lepš J.   +8 more
europepmc   +2 more sources

Mowing Modulates the Biotic Filter of Expansive Species. [PDF]

Ecol Evol
Management type and expansive species influence plant community diversity in complex ways. Overall increase of expansive species cover acts as biotic filter in reducing the alpha and beta taxonomic and phylogenetical diversity. However, the filtering effect is modulated by management type, being more intense under mown grasslands.
Bricca A, Cangelmi G, Ferrara A.
europepmc   +2 more sources

The Influence of Plant Species Composition on an Endangered Grassland Specialist Reptile, the Hungarian Meadow Viper. [PDF]

Ecol Evol
The study investigated how the horizontal structure and functional composition of grassland vegetation influence the occupancy and density of the highly endangered Hungarian meadow viper. Using plant community data and viper surveys from 59 quadrats, the best models showed that vipers prefer wetter meadows with fewer and shorter plant species, and a ...
Budai M, Rák G, Wenner B, Móré A, Bancsik B, Nagy B, Kovács G, Szabolcs M, Ladnyik Z, Molnár C, Guller ZE, Lengyel A, Vadász C, Mizsei E.   +13 more
europepmc   +2 more sources