Willows for environmental projects: A literature review of results on evapotranspiration rate and its driving factors across the genus Salix

Frédette, Chloé; Labrecque, Michel; Comeau, Yves; Brisson, Jacques

doi:10.1016/j.jenvman.2019.06.010

Cited by 31 publications

(25 citation statements)

References 85 publications

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“…If cumulative precipitation did not exceed approximately 25 mm over 5 days, the probability of being classified as a wet‐weather harvest does not exceed 0.5 (Figure 5). Transpiration rates for willow are considerably higher than other woody species, and can often exceed 3–10 mm per day during wet periods in the growing season depending also on site and management variables (Frédette, Labrecque, Comeau, & Brisson, 2019; Mirck & Volk, 2009). It may be argued that time periods exceeding 5 days or increased resolution could be useful for classifying loads based on wetness, but in terms of predicting when harvest windows might open for an active harvests, forecasts beyond 5 days may not be considered actionable by operators.…”

Section: Resultsmentioning

confidence: 99%

Cut‐and‐chip harvester material capacity and fuel performance on commercial‐scale willow fields for varying ground and crop conditions

et al. 2020

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Shrub willow (Salix spp.) is capable of producing commercially attractive amounts of biomass in short rotations, but harvesting costs and logistics remain a concern.There is a particular need for information about harvesting operations on larger, commercial short-rotation woody crop systems. Another recent issue on commercial fields in northern New York is commercial growers conducting harvests during the growing season rather than the recommended dormant season when fields may be too wet to harvest. This study evaluated and modeled the in-field performance of a cut-and-chip harvester for almost 700 wagonloads of chips operating in commercial willow fields in a wider array of crop and field conditions than have been previously reported. Analysis indicated that the time of harvest (leaf-on or leaf-off) and whether site conditions were wet or dry affected the harvester's material capacity.Mean material capacity was greatest for leaf-off, dry conditions (71.8 Mg/hr) and lowest for leaf-on harvests, which were similar for wet (30.4 Mg/hr) and dry conditions (29.7 Mg/hr). Mean crop specific fuel consumption ranged between 1.3 and 3.3 L/Mg, but can get considerably higher for standing biomasses below 40 Mg/ha.Wet ground conditions and leaf-on harvests tend to decrease material capacity and increase fuel consumption as the harvester has to divert power to forward movement and material processing. Relationships for material capacity and fuel consumption based on standing biomass, time of harvest and ground conditions will be essential for evaluating and modeling the economic and environmental impacts of commercial-scale willow operations. K E Y W O R D Sfuel consumption, harvesting logistics, leaf-on harvesting, material capacity, short-rotation woody crops, wet-weather harvesting, willow EISENBIES Et al.

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Section: Resultsmentioning

confidence: 99%

Cut‐and‐chip harvester material capacity and fuel performance on commercial‐scale willow fields for varying ground and crop conditions

et al. 2020

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“…The column was filled in 2012 with soil (a mixture of equal proportions of local loamy sand and lacustrine sand from Lake Geneva) on top of a 0.5 m layer of gravel (to facilitate drainage and avoid clogging the outlet), and two small S. viminalis clones (originated from branch cutting of the same tree) were planted in the lysimeter. The S. viminalis species was chosen because of its ability to withstand drought and flood conditions (Frédette et al, 2019; Queloz et al, 2015). While the soil remained undisturbed since 2012, the trees were cut at the base in 2014 and allowed to regrow.…”

Section: Methodsmentioning

confidence: 99%

Tree water deficit and dynamic source water partitioning

Nehemy

Benettin

Asadollahi

et al. 2020

Hydrological Processes

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The stable isotopes of hydrogen and oxygen (δ 2 H and δ 18 O, respectively) have been widely used to investigate tree water source partitioning. These tracers have shed new light on patterns of tree water use in time and space. However, there are several limiting factors to this methodology (e.g., the difficult assessment of isotope fractionation in trees, and the labor-intensity associated with the collection of significant sample sizes) and the use of isotopes alone has not been enough to provide a mechanistic understanding of source water partitioning. Here, we combine isotope data in xylem and soil water with measurements of tree's physiological information including tree water deficit (TWD), fine root distribution, and soil matric potential, to investigate the mechanism driving tree water source partitioning. We used a 2 m 3 lysimeter with willow trees (Salix viminalis) planted within, to conduct a high spatial-temporal resolution experiment. TWD provided an integrated response of plant water status to water supply and demand. The combined isotopic and TWD measurement showed that short-term variation (within days) in source water partitioning is determined mainly by plant hydraulic response to changes in soil matric potential. We observed

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“…BS is considered a part of their speciation area, however, willows are used poorly in planting of greenery. Similar recommendations were made by researchers from China [12].…”

Section: Itse-2020mentioning

confidence: 59%

“…The experience of using arboreal plants of different geographical origin and differentiation of species composition for ecologically functional groups of planting 210, 09002 (2020) E3S Web of Conferences ITSE-2020 https://doi.org/10.1051/e3sconf/202021009002 objects, the aspects of correct choice of trees [11], including representatives of specific systematic groups [12], as well as the studies on the perception and preference of green infrastructure objects [13], the demand for collective urban gardens [14], the importance of urban green spaces in maintaining physical activity [15], social interaction and, in general, comfortable emotional state of population [16] were analyzed.…”

Section: Methodsmentioning

confidence: 99%

Environmental principles for planting of greenery in settlements of Baikal Siberia

Vinkovskaya

Enin

2020

E3S Web Conf.

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Based on the publications analysis and our own research, the ecological principles are considered, which should form the basis of long-term plans for planting of greenery in settlements in Baikal Siberia and take into account important regional features. The research was conducted using methods of information collection and analysis, which include comparison and systematization of data on the indicated problem. The current general urban plans of towns, which are in open access, as well as urban planning standards for the allocation of functional zones of settlements were studied. The influence of the urban environment on the existence of plants is examined. The problem of invasion of cultivated species as a result of unreasoned planting of greenery and the need to use indigenous species for amenity planting, especially those that are rare and in need of protection, were identified. The conclusion was made that when planting of greenery, one should take into account the florogenetic and phytocoenotic properties of the vegetation cover of the studied territory. Environmental principles of planting of greenery in settlements of Baikal Siberia are proposed as conceptual. Keywords: amenity planting, urban infrastructure, Cisbaikalia, Transbaikalia.

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Willows for environmental projects: A literature review of results on evapotranspiration rate and its driving factors across the genus Salix

Abstract: Ce fichier a été téléchargé à partir de PolyPublie, le dépôt institutionnel de Polytechnique MontréalThis file has been downloaded from PolyPublie, the institutional repository of Polytechnique Montréal http://publications.polymtl.ca

Cited by 31 publications

References 85 publications

Cut‐and‐chip harvester material capacity and fuel performance on commercial‐scale willow fields for varying ground and crop conditions

Cut‐and‐chip harvester material capacity and fuel performance on commercial‐scale willow fields for varying ground and crop conditions

Tree water deficit and dynamic source water partitioning

Environmental principles for planting of greenery in settlements of Baikal Siberia

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