Results 41 to 50 of about 4,927 (200)

Carbon fluxes in a mature deciduous forest under elevated CO₂ [PDF]

open access: yes, 2010
This PhD thesis addressed several major aspects of the carbon (C) cycle in a c. 100-year-old, mixed deciduous forest under elevated CO₂ with an emphasis on below-ground processes.
Bader, Martin
core   +1 more source

Bioecological features of ornamental woody plants in the conditions of the city of Nukus [PDF]

open access: yesBIO Web of Conferences
The climatic characteristics of urban ecosystems, such as high summer temperatures, low rainfall, strong winds, as well as anthropogenic factors such as air and soil pollution, salinization, soil compaction, and limited water supply, pose serious ...
Kurbaniyazov Bakbergen   +3 more
doaj   +1 more source

ACYLATED (+)-CATECHIN GLYCOSIDES FROM ULMUS PUMILA L. GROWING IN EGYPT [PDF]

open access: yesAl-Azhar Journal of Pharmaceutical Sciences, 2012
Extensive isolation work on the n-BuOH-soluble fraction obtained from the stem and root barks of Ulmus pumila L. afforded five  compounds. Four were identified as (+)-catechin 1, (+)-catechin 7-O-gallate 2, (+)-catechin-5-O-b-D-apiofuranoside 3, and (+)-catechin-7-O-b-D-apiofuranoside 4. The structures of the remaining new compound was elucidated to be,
openaire   +1 more source

Susceptibilidad del Olmo (Ulmus pumila), y de cinco especies arbóreas nativas del centro-sur de la Provincia de Córdoba (Argentina), a la infección por Pleurotus ostreatus (Agaricales: Pleurotaceae).

open access: yesBoletín de la Sociedad Argentina de Botánica, 2018
Las invasiones biológicas avanzan sobre los ecosistemas provocando grandes modificaciones sobre su estructura y procesos ecológicos. Ulmus pumila L., es una especie exótica que se encuentra desarrollando procesos de invasión en Argentina y hasta el ...
Antonia Oggero   +4 more
doaj   +1 more source

Annotated List of Indiana Scolytidae (Coleoptera) [PDF]

open access: yes, 2017
A list of 80 species of Indiana Scolytidae (bark and ambrosia beetles) is presented.
Deyrup, Mark
core   +2 more sources

Spontaneous changes a basis for new ornamental woody plant cultivars [PDF]

open access: yesGlasnik Šumarskog Fakulteta: Univerzitet u Beogradu, 2006
In nursery stock production of some ornamental woody plants the appearance of spontaneous variability was identified in the form of atypical pigmentation of leaves (albinism, variegated, red colored), leaves shape (jaggy) and dwarfs.
Đukić Matilda   +3 more
doaj   +1 more source

Preliminary Comparative Effects of Close-to-Nature and Structure-Based Forest Management on Carbon Sequestration in <i>Pinus tabuliformis</i> Plantations of the Loess Plateau, China. [PDF]

open access: yesEcol Evol
Carbon neutrality was projected to be achieved 7.8 years in stands under close‐to‐nature forest management (CNFM), which was earlier than the 8.7 years in stands under structure‐based forest management (SBFM). CNFM's low‐disturbance characteristics are more sustainable in regions prioritizing ecological restoration, while SBFM could serve as a ...
Zhang J   +5 more
europepmc   +2 more sources

The impact of grazing on seedling patterns in degraded sparse‐elm grassland [PDF]

open access: yes, 2018
Over‐grazing by livestock in semi‐arid ecosystems is one of the main causes of desertification. Although over‐grazing presents a global environmental challenge, only a few studies have investigated grazing impacts on the composition of species and ...
Chu, Lei   +5 more
core   +1 more source

Comparison of water use efficiency and biomass production in 10-year-old Populus sibirica and Ulmus pumila plantations in Lun soum, Mongolia

open access: yesForest Science and Technology, 2019
Although afforestation is one of the best solutions for combating desertification, it requires intensive management. To minimize management efforts in plantations in arid area, it is crucial to select suitable tree species, i.e.
Sungsik Cho   +3 more
doaj   +1 more source

The age structure of Ulmus L. stands in the eastern regions of Ukraine

open access: yesНаукові праці Лісівничої академії наук України, 2023
The aim of the research was to determine the features of the age structure for natural and artificial elm stands depending on species, origin, and region.
Valentyna Meshkova   +2 more
doaj   +1 more source

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