2020
DOI: 10.3390/rs12162639
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Population Characteristics of Loess Gully System in the Loess Plateau of China

Abstract: Gullies in the Loess Plateau of China vary in developmental stages and morphologic sizes. In this case study, in Linjialian watershed in the loess hilly region, we introduced some perspectives from population ecology to explore the population characteristics of the loess gully system. Different types of gullies were extracted based on the digital elevation model and imagery data. Population analysis was then carried out from three aspects, namely, quantity, structure, and distribution. Results showed that in t… Show more

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Cited by 20 publications
(12 citation statements)
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“…The gully system in this study consists of hillslope ephemeral, bank and valley gully (Figure 3), which are the most dynamic, widely distributed and changeable loess gullies in the Loess Plateau. In morphology, hillslope ephemeral gullies are generally 20-50 cm deep and 30-50 cm wide and are smaller than the bank gully, which are mainly distributed in the area above the shoulder line [40]. Ephemeral gully is too small to be extracted by DEM with 5 m resolution, but it exhibits clear linear features in high-resolution images [45].…”
Section: Gully System Extraction and Classificationmentioning
confidence: 99%
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“…The gully system in this study consists of hillslope ephemeral, bank and valley gully (Figure 3), which are the most dynamic, widely distributed and changeable loess gullies in the Loess Plateau. In morphology, hillslope ephemeral gullies are generally 20-50 cm deep and 30-50 cm wide and are smaller than the bank gully, which are mainly distributed in the area above the shoulder line [40]. Ephemeral gully is too small to be extracted by DEM with 5 m resolution, but it exhibits clear linear features in high-resolution images [45].…”
Section: Gully System Extraction and Classificationmentioning
confidence: 99%
“…Thus, high-resolution remote sensing images are applied to recognize and extract ephemeral gully by the combination of our previous method and visual interpretation and manual digitizing [45]. Bank and valley gullies are mainly extracted by our proposed method [41] In morphology, hillslope ephemeral gullies are generally 20-50 cm deep and 30-50 cm wide and are smaller than the bank gully, which are mainly distributed in the area above the shoulder line [40]. Ephemeral gully is too small to be extracted by DEM with 5 m resolution, but it exhibits clear linear features in high-resolution images [45].…”
Section: Gully System Extraction and Classificationmentioning
confidence: 99%
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“…Gully erosion events significantly influence the formation of landforms (Wu & Cheng, 2005) and lead to severe land degradation (Na, Yang, Tang, Dang, & Strobl, 2020). Soil loss caused by intense gully erosion not only damages local ecology and crop productivity (Dale & Carter, 1956) but also feeds a mass of sediment to surrounding rivers and poses a threat to downstream areas (Chen et al, 2007).…”
Section: Gully Erosion and Check Damsmentioning
confidence: 99%
“…Yushen Coalfield is located in the transition zone between the Loess Plateau and the Mu Us Sandy Land with rugged topography, and a gullied surface [9], under gullies topography, mining-induced surface cracks is a severe threat to the local fragile ecological environment [10][11][12][13]. Researchers have studied the influence of valley topography on mining-induced surface cracks using numerical simulation [14][15][16][17],…”
Section: Introductionmentioning
confidence: 99%