Seed removal on loess slopes in relation to runoff and sediment yield

Han, Lingli; Jiao, Juying; Jia, Yanfeng; Wang, Ning; Dong, Lei; LinYu, Li

doi:10.1016/j.catena.2010.11.007

Cited by 22 publications

(21 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Our results are partly consistent, considering that the heaviest seeds (especially Acer campestre) were completely removed on untreated plots, but we did not have sufficient measurements on the seeds of the tested species to continue analysis of these criteria. The same holds true for the effect of runoff and sediment yield on seed removal studied by Han et al (2011). It is obvious that wood chip amendment improved seed emergence capacity.…”

Section: Discussionsupporting

confidence: 54%

Effects of wood chip amendments on the revegetation performance of plant species on eroded marly terrains in a Mediterranean mountainous climate (Southern Alps, France)

Breton

Crosaz²,

Rey

2016

Solid Earth

View full text Add to dashboard Cite

Abstract. The establishment of plant species can limit soil erosion dynamics in degraded lands. In marly areas in the Southern French Alps, both harsh water erosion and drought conditions in summer due to the Mediterranean mountainous climate prevent the natural implementation and regeneration of vegetation. Soil fertility improvement is sometimes necessary. With the purpose of revegetating such areas, we aimed to evaluate the effects of wood chip amendments on the revegetation performance of different native or subspontaneous plant species. We conducted two experiments on steep slopes over three growing seasons (2012)(2013)(2014). The first consisted of planting seedlings (10 species), and the second consisted of seeding (nine species including six used in the first experiment). First we noted that wood chips were able to remain in place even in steep slope conditions. The planting of seedlings showed both an impact of wood chip amendment and differences between species. A positive effect of wood chips was shown with overall improvement of plant survival (increasing by 11 % on average, by up to 50 % for some species). In the seeding experiment, no plants survived after three growing seasons. However, intermediate results for the first and second years showed a positive effect of wood chips on seedling emergence: seeds of four species only sprouted on wood chips, and for the five other species the average emergence rate increased by 50 %.

show abstract

Section: Discussionsupporting

confidence: 54%

Effects of wood chip amendments on the revegetation performance of plant species on eroded marly terrains in a Mediterranean mountainous climate (Southern Alps, France)

Breton

Crosaz²,

Rey

2016

Solid Earth

View full text Add to dashboard Cite

show abstract

“…A strong relationship was found between the magnitude of seed transport by runoff and rainfall and slope characteristics. Similar to what happens to soil particles (Govers, 1989;Parsons et al, 1993;de Vente and Poesen, 2005;Boix-Fayos et al, 2006), seed losses increased as slope angle (García-Fayos et al, 1995;Jiao et al, 2011;Han et al, 2011;but Cerdà and García-Fayos, 1997) and rain duration and intensity increased (García-Fayos et al, 1995;Jiao et al, 2011;Han et al, 2011), but it decreased with soil surface roughness (Reichman, 1984;Chambers, 2000;Aerts et al, 2006;Isselin-Nondedeu et al, 2006;Isselin-Nondedeu and Bédécarrats, 2007) and with total slope length (García-Fayos et al, 1995). Soil texture also influenced seed losses, since larger soil particles increased the amount of seeds trapped in the soil (Chambers et al, 1991;Traba et al, 2006).…”

Section: Factors Influencing Seed Removal By Runoff 321 External Famentioning

confidence: 76%

“…Aerts et al (2006) reported that 21 to 61 % of the seeds of the species Olea europea were translocated to new sites under simulated rainfall within 3 m × 3 m plots placed in restored forested areas in Ethiopia. Similarly, Jiao et al (2011) and Han et al (2011) described that 30-45, 46.9 and 20.4 % of the seeds were moved from one site to another site inside a 1 m 2 and 2 m long laboratory experimental bin at intensities of 50, 100 and 150 mm h −1 , respectively, without being exported outside the bin. Using the same experimental setup, Wang et al (2013) measured an average distance of 157.5 cm corresponding to seed redistribution by runoff within a 2 m long bin, which was longer than the length of the plots used by Cerdà and García-Fayos (1997) and García-Fayos and Cerdà (1997) to quantify seed loss rates.…”

Section: Conceptual Model Of Seed Fates and Movements In And On The Soilmentioning

confidence: 95%

“…the scarcity of vegetation as a consequence of seed removal by runoff Han et al, 2011;Wang et al, 2013; see Table 1). Similar results to that documented in the Spanish badland areas were obtained, since no seed losses were recorded in small bins filled with soils collected from the field at a similar rainfall intensity (50 mm h −1 ) and different slope angles Han et al, 2011). However, the total amount of seeds lost by runoff was closely related to runoff volume and sediment yield and average seed losses reached 32.6 and 66.0 % values at rainfall intensities of 100 and 150 mm h −1 , respectively.…”

Section: Conceptual Model Of Seed Fates and Movements In And On The Soilmentioning

confidence: 99%

“…Soil texture also influenced seed losses, since larger soil particles increased the amount of seeds trapped in the soil (Chambers et al, 1991;Traba et al, 2006). Results of these studies also suggested that seed characteristics could obscure the relationships between runoff and seed losses and were therefore further investigated (Friedman and Orshan, 1975;García-Fayos et al, 1995;Cerdà and García-Fayos, 1997;García-Fayos and Cerdà, 1997;Han et al, 2011).…”

Section: Factors Influencing Seed Removal By Runoff 321 External Famentioning

confidence: 99%

See 2 more Smart Citations

The fate of seeds in the soil: a review of the influence of overland flow on seed removal and its consequences for the vegetation of arid and semiarid patchy ecosystems

Bochet

2015

SOIL

View full text Add to dashboard Cite

Abstract. Since seeds are the principle means by which plants move across the landscape, the final fate of seeds plays a fundamental role in the assemblage, functioning and dynamics of plant communities. Once seeds land on the soil surface after being dispersed from the parent plant, they can be moved horizontally by surface runoff. In arid and semiarid patchy ecosystems, where seeds are scattered into a very heterogeneous environment and intense rainfalls occur, the transport of seeds by runoff to new sites may be an opportunity for seeds to reach more favourable sites for seed germination and seedling survival. Although seed transport by runoff may be of vital importance for the recruitment of plants in these ecosystems, it has received little attention in the scientific literature, especially among soil scientists. The main goals of this review paper are (1) to offer an updated conceptual model of seed fate with a focus on seed destiny in and on the soil; (2) to review studies on seed fate in overland flow and the ecological implications seed transport by runoff has for the origin, spatial patterning and maintenance of patches in arid and semiarid patchy ecosystems; and finally (3) to point out directions for future research.This review shows that seed fate in overland flow may result either in the export of seeds from the system (seed loss) or in the spatial redistribution of seeds within the system through short-distance seed movements (seed displacement). Seed transport by runoff depends on rainfall, slope and soil characteristics. Susceptibility of seed removal varies highly between species and is mainly related to seed traits, including seed size, seed shape, presence of appendages, and ability of a seed to secrete mucilage. Although initially considered as a risk of seed loss, seed removal by runoff has recently been described as an ecological driver that shapes plant composition from the first phases of the plant life by favouring species with seeds able to resist erosion and by selecting for plant traits that prevent seed loss. Moreover, the interaction of seed transport by overland flow with the high seed trapping capacity of vegetated patches results in a "patch-to-patch" transport of seeds that plays a relevant role in vegetation establishment and patterning in arid and semiarid patchy ecosystems.Overall, this review shows how the knowledge about seed fate in overland flow can be used to explain a number of important characteristics of whole plant communities. It also underlines important gaps in knowledge that should be filled in. Future lines of research are proposed in order to broaden our understanding of the origin, maintenance and dynamics of patchiness in arid and semiarid ecosystems and to improve restoration success of intensively eroded ecosystems. Among the most exciting challenges, empirical studies are needed to understand the relevance of short-distance seed displacements in the origin and maintenance of patchiness, addressing the feedbacks between structure and function and abiotic a...

show abstract

Erosion processes and sediment source tracing on heterogeneous slopes in the red soil region of southern China

Wu,

Lei,

Luo

et al. 2024

Earth Surf Processes Landf

View full text Add to dashboard Cite

Understanding erosion, sediment sources and the spatial distribution along heterogeneous slopes is essential for soil and water conservation. In this study, soils derived from nodular limestone, mud‐like limestone and limestone breccia (abbreviated as SMTL, SMDL and SLBC, respectively) were utilized to establish artificial homogeneous and heterogeneous slopes. The homogeneous slopes MTL, MDL and LBC represent SMTL‐, SMDL‐ and SLBC‐filled‐ slopes, respectively. The heterogeneous slopes were abbreviated as MTL/MDL, MDL/LBC and LBC/MTL. Rare earth elements (REEs; lanthanide, cerium and ytterbium) were used to tag soils on the upper and lower slope sections to track sediment transport and deposition. The results showed that for homogeneous slopes, the LBC slope was the most severely eroded, followed by the MDL and MTL slopes. For heterogeneous slopes, the order of erosion was LBC/MTL > MTL/MDL > MDL/LBC. Upslope sections contributed a sizable portion of the total sediment yield, ranging from 51% to 79%. Over time, the difference in the sediment contribution between the upslope and downslope regions decreased and reached equilibrium. Runoff rates on heterogeneous slopes demonstrated an inverse function (R2 > 0.75) in contrast to a logarithmic distribution (R2 > 0.87) on homogeneous slopes. Heterogeneous slopes displayed minimal intersegment variation and the absence of a consistent ordering of the magnitude of hydraulic parameters. Conversely, the hydraulic parameters of homogeneous slopes were consistently ordered across the slope sections. For sediment transport, all slopes exhibited suspension‐dominated flow with percentages greater than 89%. However, the particle size distribution of the sediment of heterogeneous slopes exhibited greater diversity and complexity because of the coexistence of distinct soils. These findings underscore the importance of customized strategies for soil and water conservation in environments characterized by diverse soil parent materials.

show abstract

Seed removal on loess slopes in relation to runoff and sediment yield

Cited by 22 publications

References 39 publications

Effects of wood chip amendments on the revegetation performance of plant species on eroded marly terrains in a Mediterranean mountainous climate (Southern Alps, France)

Effects of wood chip amendments on the revegetation performance of plant species on eroded marly terrains in a Mediterranean mountainous climate (Southern Alps, France)

The fate of seeds in the soil: a review of the influence of overland flow on seed removal and its consequences for the vegetation of arid and semiarid patchy ecosystems

Erosion processes and sediment source tracing on heterogeneous slopes in the red soil region of southern China

Contact Info

Product

Resources

About