A new concept for estimating the influence of vegetation on throughfall kinetic energy using aerial laser scanning

Senn, Johannes Antenor; Fassnacht, Fabian Ewald; Eichel, Jana; Seitz, Steffen; Schmidtlein, Sebastian

doi:10.1002/esp.4820

Cited by 9 publications

(4 citation statements)

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As to optimize EEW via spatial pattern, concentrating vegetation into small but dense patches and left other patches less covered should be better than uniformly planting. It was in accordance with previous studies (Ling et al, 2020;Mayor et al, 2008;Senn et al, 2020).…”

Section: Role Of Vegetation Spatial Pattern In the Tradeoff Of Sc And Swrsupporting

confidence: 93%

“…A threshold of vegetation coverage may exist above which SC gradually increases (Shachak et al, 1998;Yao et al, 2018). This threshold was about 40% (Senn et al, 2020;Yao et al, 2018), which were lower than that measured in FULL and 0.5UNI. The higher vegetation density would not apparently reduce splash erosion nor runoff flow power ( Zhang & Liang, 1996).…”

Section: Role Of Vegetation Density In the Tradeoff Of Sc And Swrmentioning

confidence: 58%

See 1 more Smart Citation

Tradeoffs between soil conservation and soil‐water retention: The role of vegetation pattern and density

2021

View full text Add to dashboard Cite

Balancing erosion control and the water conservation service is the primary goal of intensive revegetation in water-limited conditions. In this study, a field experiment was conducted in the dryland Chinese Loess Plateau (CLP), to investigate the role of vegetation pattern and density in their tradeoff between soil conservation (SC) and soil water retention (SWR). Five vegetation patterns (up-slope covered, downslope covered, low and high uniformly covered, no coverage) with three levels of grass density (220 g m À2 , 110 g m À2 , and 0) were designed and implemented. A novel indicator EEW (the exchange between erosion reduction and water consumption), as the cost of any extra depletion of soil water to improve each unit of soil conservation, was used to represent the tradeoff during a complete dry-wet-dry soil water convert cycle. The higher EEW, the poorer tradeoff between SC and SWR. It was illustrated that higher vegetation density could promote SC but not inevitably suppress EEW.The present typical grass density in CLP, round 220 g m À2 , was redundant in optimizing the SC-SWR tradeoff. A concentrated and centralized vegetation distribution mainly in the downslope obtained an EEW at 11.6 mm m 2 kg À1 and was confirmed as a favoured vegetation pattern. The simulated typical density and spatial pattern in CLP (about 220 g m À2 and uniformly distribution) had EEW at 20.5 mm m 2 kg À1 , by reducing the density to about 110 g m À2 and a downslope centralized vegetation redistribution, the EEW was reduced by 43.4%. Under long-term drought conditions at dry-wet-dry cycles, soil water decreased more sharply in the Full-covered plots, due to more evapotranspiration and vertical water loss caused by higher plant density, compared with half-covered and bare soil plots. The present study confirmed that planted density and vegetation pattern can manipulate SC-SWR tradeoff and it was thus possible to optimize it by adjusting revegetation's intensity and structures in practice.

show abstract

Section: Role Of Vegetation Spatial Pattern In the Tradeoff Of Sc And Swrsupporting

confidence: 93%

Section: Role Of Vegetation Density In the Tradeoff Of Sc And Swrmentioning

confidence: 58%

Tradeoffs between soil conservation and soil‐water retention: The role of vegetation pattern and density

2021

View full text Add to dashboard Cite

show abstract

“…High biomass produced by C. gayana and E. superba (Figure 1(b)), implies that they are suitable for enhancing productivity, forage availability and increasing the carrying capacity of southeastern Kenya semi‐arid rangelands for grazing herbivores. Plant height is a major factor controlling soil erosion in grassy biomes because it determines the potential maximum falling height and kinetic energy of raindrops (Senn et al., 2020). Thus, taller culms of C. gayana (150 cm) and E. superba (110 cm) (Figures 1(c) and 1(d)), indicate that they have a great potential in intercepting raindrops and thus minimize soil disturbance.…”

Section: Discussionmentioning

confidence: 99%

Morphoecological characteristics of grasses used to restore degraded semi‐arid African rangelands

Mganga

Kaindi

Ndathi

et al. 2021

Ecol Sol and Evidence

View full text Add to dashboard Cite

1. Progressive loss of productivity and plant diversity is a concern in global rangelands.In African rangelands, this process is partly attributed to heavy and uncontrolled grazing by livestock and wildlife, leading to land degradation. Therefore, restoring such degraded rangelands is critical for enhancing ecosystem health and securing the livelihoods of millions of people. 2. Active restoration strategies, for example, reseeding using indigenous perennial grasses, have been identified as a viable ecological solution for restoring degraded African rangelands. Grass species indigenous to African rangelands Cenchrus ciliaris L. (African foxtail grass), Eragrostis superba Peyr. (Maasai love grass), Enteropogon macrostachyus (Hochst. Ex A. Rich.) Monro ex Benth. (Bush rye grass), Chloris roxburghiana Schult. (Horsetail grass) and Chloris gayana Kunth. cv Boma (Rhodes grass) were established in a semi-arid rangeland in Africa under natural conditions to compare their morphoecological characteristics and suitability for use in ecological restoration. Biomass dry matter yields, plant densities, basal cover, seed production, tiller densities and plant height were measured.3. Chloris gayana cv Boma and E. superba produced significantly higher dry matter biomass yields and attained higher seed production than other species. High biomass and seed production indicate their suitability to support livestock production and replenish depleted soil seed banks, respectively. 4. Enteropogon macrostachyus and C. ciliaris displayed significantly higher values for components of establishment and ecological restoration success, that is, plant densities, tiller densities and basal cover. Overall, C. roxburghiana ranked lowest in the measured morphoecological characteristics.5. Successful restoration of degraded African semi-arid rangelands using indigenous grass reseeding can best be achieved through careful selection of grasses to take advantage of their specific morphoecological characteristics. This selection shouldThis is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

show abstract

“…High biomass produced by C. gayana and E. superba (Figure 1(b)), implies that they are suitable for enhancing productivity, forage availability and increasing the carrying capacity of southeastern Kenya semi-arid rangelands for grazing herbivores. Plant height is a major factor controlling soil erosion in grassy biomes because it determines the potential maximum falling height and kinetic energy of raindrops (Senn et al, 2020). Thus, taller culms of C. gayana (150 cm) and E. superba (110 cm) (Figures 1(c) and 1(d)), indicate that they have a great potential in intercepting raindrops and thus minimize soil disturbance.…”

Section: Discussionmentioning

confidence: 99%

Morphoecological characteristics of grasses used to restore degraded semi-arid African rangelands

Mganga¹

2021

Preprint

View full text Add to dashboard Cite

<p>Progressive loss of productivity and plant diversity is a major in global rangelands. In African rangelands ecosystems, this process is partly attributed to heavy and uncontrolled grazing by livestock and wildlife, leading to land degradation. Therefore, restoring such degraded rangelands is critical for enhancing ecosystem health and securing the livelihoods of millions of people. Active restoration strategies, e.g. reseeding using indigenous perennial grasses has been identified as a viable ecological solution for restoring degraded African rangelands. Grass species indigenous to African rangelands Cenchrus ciliaris L. (African foxtail grass), Eragrostis superba Peyr. (Maasai love grass), Enteropogon macrostachyus (Hochst. Ex A. Rich.) Monro ex Benth. (Bush rye grass), Chloris roxburghiana Schult. (Horsetail grass) and Chloris gayana Kunth. cv Boma (Rhodes grass) were established in a semi-arid rangeland in Africa under natural conditions to compare their morphoecological characteristics and suitability for use in ecological restoration. Biomass dry matter yields, plant densities, basal cover, seed production, tiller densities and plant height were measured. Chloris gayana cv Boma and E. superba produced significantly higher dry matter biomass yields and seed production than other species. High biomass and seed production demonstrate their suitability to support livestock production and replenish depleted soil seed banks, respectively. Enteropogon macrostachyus and C. ciliaris displayed significantly higher values for plant densities, tiller densities and basal cover, also a component of establishment and ecological restoration success. Chloris roxburghiana ranked lowest in all the measured morphoecological characteristics. This may be a strong indicator of ecological site-specific characteristic of C. roxburghiana. Successful restoration of degraded African semi-arid rangelands using indigenous grass reseeding can best be achieved through careful selection of grasses to take advantage of their specific morphoecological characteristics. This selection should primarily be informed by the intended use of the rangeland.</p>

show abstract

A new concept for estimating the influence of vegetation on throughfall kinetic energy using aerial laser scanning

Cited by 9 publications

References 69 publications

Tradeoffs between soil conservation and soil‐water retention: The role of vegetation pattern and density

Tradeoffs between soil conservation and soil‐water retention: The role of vegetation pattern and density

Morphoecological characteristics of grasses used to restore degraded semi‐arid African rangelands

Morphoecological characteristics of grasses used to restore degraded semi-arid African rangelands

Contact Info

Product

Resources

About