Results 211 to 220 of about 153,947 (256)
Stored carbon partly fuels fine‐root respiration but is not used for production of new fine roots [PDF]
New Phytologist, 2013 Summary The relative use of new photosynthate compared to stored carbon (C) for the production and maintenance of fine roots, and the rate of C turnover in heterogeneous fine‐root populations, are poorly understood. We followed the relaxation of a 13C tracer in fine roots in a Liquidambar styraciflua plantation at the conclusion of a free‐air CO2 ...
Roser Matamala +2 more
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Fine root studies in situ and in the laboratory
Environmental Pollution, 1990The fine roots and myocorrhizae of beech, spruce and fir trees exposed to ozone, sulphur dioxide and simulated acid precipitation in open-top chambers (OTC) were examined both in situ by rhizoscopy and in the laboratory using root samples from soil cores. Prior to measurements the trees were treated for about one year.
H, Wöllmer, I, Kottke
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Decomposition of Root Tips, Fine Roots, and Coarse Roots
2020Decomposition of fine-root litter is much less studied than that of foliar litter although fine root litter is a major contributor to litter input to the forest soil. This chapter is devoted to decomposition of root tips and fine roots. Root litter decomposition may be studied using litter bags, through following remaining root mass in soil cores, or ...
Björn Berg, Charles McClaugherty
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Advancing fine root research with minirhizotrons
Environmental and Experimental Botany, 2001Minirhizotrons provide a nondestructive, in situ method for directly viewing and studying fine roots. Although many insights into fine roots have been gained using minirhizotrons, a review of the literature indicates a wide variation in how minirhizotrons and minirhizotron data are used.
M G., Johnson +3 more
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Fine Root Dynamics and Root Respiration
2011Studies of fine root phenology and respiration in forest ecosystems are reviewed. Direct, nondestructive observation methods, such as the minirhizotron imaging system and the root window, provide simultaneous quantitative measurements of root production and mortality.
Karibu Fukuzawa +2 more
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Fine root production of astringent phenolics
Oecologia, 1989Chemical quality of fine roots (
Muller, Robert N. +2 more
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Nitrogen addition and removal at Gårdsjön — effects on fine-root growth and fine-root chemistry
Forest Ecology and Management, 1998Investigations were carried out on Norway spruce (Picea abies) fine-root growth in 3 catchment areas subjected to decreased nitrogen (N) and sulphur (S) deposition (G1 ROOF), increased N deposition (G2 NITREX) and ambient levels of N and S deposition (F1 CONTROL), within the Lake Gardsjon basin, SW Sweden.
H. Persson +2 more
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Oikos, 2021
Plants rely on roots for absorption of nutrients from the soil. Differences in traits of fine roots and of the root system in general thus underlie differences among individual species in their ability to live in habitats differing in nutrient status and interactions with other species.
Jitka Klimešová, Tomáš Herben
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Plants rely on roots for absorption of nutrients from the soil. Differences in traits of fine roots and of the root system in general thus underlie differences among individual species in their ability to live in habitats differing in nutrient status and interactions with other species.
Jitka Klimešová, Tomáš Herben
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NUTRIENT CONCENTRATIONS IN FINE ROOTS
Ecology, 2000Fine roots are an important source and sink for nutrients in terrestrial biogeochemistry. We examined the following hypotheses for fine root nutrients by analyzing data from 56 published studies: (1) that there is a general, inverse relationship of fine root nutrient concentrations with root diameter, and (2) that retranslocation of nutrients out of ...
Wendy S. Gordon, Robert B. Jackson
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Decomposition of Fine Root and Woody Litter
2003Decomposition of wood and fine root litter is much less studied than that of foliar litter. This chapter gives a brief overview to a few representative studies, giving some method approaches. For logs, there are decomposition classes given, which allow a description of the process.
Björn Berg, Charles McClaugherty
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