Results 11 to 20 of about 11,678 (266)

Weeds under the canopies of tree species submitted to different planting densities and intercropping Plantas daninhas sob copas de espécies arbóreas submetidas a consórcios e densidades de plantio diferentes

open access: yesPlanta Daninha, 2013
Assessing the growth and floristic composition of species that grow under the canopy of trees is important for weed control (WC). The objective of this study was to assess two experiments (E1 and E2), when the trees were two years and one year of age ...
A.D Souza   +4 more
doaj   +1 more source

Bacterial multi-resistance to antibiotics in water from plant cavities (phytotelms) in a deep tropical forest from Costa Rica

open access: yesCuadernos de investigación UNED, 2023
Introduction: The spread of antimicrobial resistance in natural environments continues to be reported throughout the world; nevertheless, there is no study about phytotelms (water in the natural cavities of plants) in the deep understory of tropical ...
Stephanny Sánchez-Vargas   +3 more
doaj   +1 more source

Net Ecosystem Exchange of CO2 in Deciduous Pine Forest of Lower Western Himalaya, India

open access: yesResources, 2019
Carbon cycle studies over the climate-sensitive Himalayan regions are relatively understudied and to address this gap, systematic measurements on carbon balance components were performed over a deciduous pine forest with an understory layer.
Nilendu Singh   +3 more
doaj   +1 more source

Estimating aboveground live understory vegetation carbon in the United States

open access: yesEnvironmental Research Letters, 2017
Despite the key role that understory vegetation plays in ecosystems and the terrestrial carbon cycle, it is often overlooked and has few quantitative measurements, especially at national scales.
Kristofer D Johnson   +8 more
doaj   +1 more source

Changes in the structure and productivity of a herb-Sphagnum pine stand upon drainage and a combination of treatments

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2018
Data from long-term (30 yrs) monitoring of changes in the ecological conditions and species composition of all vegetation layers (tree stand, young growth, undergrowth, dwarf shrub-herb layer, moss layer) of a drained herb-sphagnum pine stand after a ...
Vasily Matyushkin, Sergey Moshnikov
doaj   +1 more source

Plant community dynamics in an urban forest fragment of the São Paulo Metropolitan Area, Brazil

open access: yesHoehnea, 2020
We present a synthesis (2006-2012) of plant community dynamics in an area (1 ha) of the largest remnant of Atlantic Rain Forest surrounded by São Paulo city.
Hebert Kondrat   +2 more
doaj   +1 more source

Site and soil drivers of growth and ginsenoside accumulation in forest-grown ginseng

open access: yesJournal of Agriculture and Food Research
Forest-grown ginseng (Panax ginseng C. A. Mey.) is widely valued for its high medicinal quality; however, the ecological factors governing plant growth and ginsenoside accumulation under natural forest ecosystems remain insufficiently understood.
Yingxu Gao   +7 more
doaj   +1 more source

Analysis and Evaluation of the Nutritional Composition of Four Macadamia Nut Varieties in Yunnan Province

open access: yesShipin gongye ke-ji
This study investigated four macadamia varieties ('Disi 1' 'Disi 2' 'H2' and 'OC') from Yunnan, China, by analyzing their nutritional components, mineral elements, amino acids, and fatty acids.
Tingyang HE   +10 more
doaj   +1 more source

Assessment of Active LiDAR Data and Passive Optical Imagery for Double-Layered Mangrove Leaf Area Index Estimation: A Case Study in Mai Po, Hong Kong

open access: yesRemote Sensing, 2023
Remote sensing technology is a timely and cost-efficient method for leaf area index (LAI) estimation, especially for less accessible areas such as mangrove forests.
Qiaosi Li   +4 more
doaj   +1 more source

The persistence of carbon in the African forest understory [PDF]

open access: yesNature Plants, 2019
Quantifying carbon dynamics in forests is critical for understanding their role in long-term climate regulation1-4. Yet little is known about tree longevity in tropical forests3,5-8, a factor that is vital for estimating carbon persistence3,4. Here we calculate mean carbon age (the period that carbon is fixed in trees7) in different strata of African ...
Wannes Hubau   +51 more
openaire   +8 more sources

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