Historical evolution of gully erosion and its response to land use change during 1968–2018 in the Mollisol region of Northeast China

Zhang, Shengmin; Guo, Mingming; Liu, Xin; Chen, Zhuoxin; Zhang, Xingyi; Xu, Jinzhong; Han, Xiao

doi:10.1016/j.iswcr.2023.08.001

Cited by 6 publications

(4 citation statements)

References 78 publications

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“…Insect diversity was not only determined by the abundance, diversity and biomass of plants, but was also determined by the environmental conditions of micro‐landscapes in SNH (Ramzan et al., 2020; Zhang, Zhang, et al., 2023a). Gullies, characterized by a lower altitude relative to surrounding farmland, are widely distributed in farmland and typically have a complicated plant community under special micro‐landscape and microclimate (Zhang, Guo, et al., 2023b; Zhang, Zhang, et al., 2023a). Thus, these gullies affecting insects could be different from other SNH in farmland.…”

Section: Discussionmentioning

confidence: 99%

“…It is noteworthy that gullies (including stable and developing gullies) are widely distributed in farmland in the Mollisols region of Northeast China. Stable gullies usually represent that gully head, bank and bottom are stable (no movement) and has relatively better vegetation recovery, while developing gullies show that gully size is increasing and has poorer vegetation recovery during different stages of succession (Zhang, Guo, et al., 2023b; Zhang, Zhang, et al., 2023a). These gullies occupy a large proportion of agricultural land and their number progressively increases each year (Zhang et al., 2022; Zhang, Guo, et al., 2023b).…”

Section: Introductionmentioning

confidence: 99%

“…Stable gullies usually represent that gully head, bank and bottom are stable (no movement) and has relatively better vegetation recovery, while developing gullies show that gully size is increasing and has poorer vegetation recovery during different stages of succession (Zhang, Guo, et al., 2023b; Zhang, Zhang, et al., 2023a). These gullies occupy a large proportion of agricultural land and their number progressively increases each year (Zhang et al., 2022; Zhang, Guo, et al., 2023b). However, it is still not clear (1) how these gullies affect the distribution of functional insects in farmland, especially gully types; (2) how the differences in gully positions affect the distribution of the main functional insects; and (3) what are the key factors affecting the main functional insects and the response at different scales.…”

Section: Introductionmentioning

confidence: 99%

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Stable gullies provide a suitable habitat for functional insects and reduce the threat of pests on crops in farmland of Northeast China

Zhang,

Zhang

et al. 2024

Ecology and Evolution

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Gullies with lower altitudes compared to the surrounding environment are widely distributed in farmland of the watershed and their numbers are still expanding. However, it is still unclear how these gullies regulate the functional insects in farmland. In this study, land use types combined with the herbaceous plant, herbicide application, soil moisture, topography and climatic factors during crop growth were considered to understand how gullies influence the dynamics of functional insects in farmland from a watershed (240 ha) of Northeast China. The primary findings demonstrate that the richness and abundance of functional insects are generally greatest in gullies, particularly in stable gullies, and decrease in the following order: forest belts, grasslands, and farmlands within the watershed. Notably, the ratios of beneficial insects to pests (BI/Pest) in terms of richness and abundance were lower in gullies before July but reversed after July, in comparison to farmland. Stable gullies exhibited higher BI/Pest abundance and diversity ratios than developing gullies. The richness and abundance of functional insects were higher in the middle sections of gullies compared to their heads and tails. Furthermore, the ratios of BI/Pest were generally lower in farmlands than in any gully position. Functional insect dynamics were mainly determined by season, followed by plant abundance and biomass in the gullies, and rarely by soil moisture in the both watershed and single gullies scales. Generally, the richness and abundance of functional insects in farmland were mainly influenced by gullies, especially influenced by the gully middle position. Insect composition in farmland influenced by stable gullies was stronger than by developing gullies, and stable gullies were more beneficial in reducing the threat of pests to crops in the farmland of the watershed.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Stable gullies provide a suitable habitat for functional insects and reduce the threat of pests on crops in farmland of Northeast China

Zhang,

Zhang

et al. 2024

Ecology and Evolution

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“…This paper analyses the rainfall erosivity in the northeast region on annual, wet and dry seasonal, monthly, and daily scales, as well as on heavy rainfall conditions, with a view to providing some theoretical basis for soil and water conservation work and agricultural farming measures in different scenarios. Several studies have examined patterns of precipitation, RE and soil erosion across the northeast region [35,39,40]. However, few studies have deeply investigated spatial and temporal variation in RE in the Rolling Hilly Region of Northeast China (RHRNEC) which is the core of the Northeast Black Soil Region and an important grain production base in China.…”

Section: Introductionmentioning

confidence: 99%

Temporal and Spatial Variation in Rainfall Erosivity in the Rolling Hilly Region of Northeast China

Li,

Wang,

et al. 2023

Agronomy

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The Rolling Hilly Region of Northeast China (RHRNEC) is a critical grain production area in China, and soil erosion is a major problem in this region. To determine spatial and temporal changes in rainfall erosivity (RE) in the RHRNEC and generate information useful for soil and water conservation, agricultural management, and ecological protection efforts, a RE index consisting of nine erosivity indices based on normal and extreme precipitation was established. The normal RE index (NREI) comprised annual RE (ARE), wet season RE (WRE), dry season RE (DRE), typical wet-month RE (TWRE), and typical dry-month RE (TDRE), and the extreme RE index set (EREI) comprised maximum one-day RE (RE × 1 day), maximum five consecutive days RE (RE × 5 day), storm RE (RE50), and maximum continuous RE (CRE). ARE, WRE, and TWRE decreased at relative rates of 2.5%, 2.9%, and 4.1%, respectively. By comparison, DRE increased at a non-significant relative rate of 6.3%, and all extreme RE indices decreased at a non-significant rate relative to 1981–2015 mean values. The future trends for all RE indices were predicted to be opposite to historical trends. The future trends and historical trends of all indices exhibited opposite patterns. RE gradually increased from north to south, and WRE, DRE, and all extreme RE indices were significantly negatively correlated with longitude, latitude, and altitude (p < 0.05). ARE, WRE, and TWRE showed increasing trends in the north and south and decreasing trends in the center. The findings are useful for soil and water conservation, especially for agricultural management and ecological protection.

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Gully erosion development during an extreme flood event using UAV photogrammetry in an arid area, Iran

Mirzaee,

Pajouhesh,

Imaizumi

et al. 2024

CATENA

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Historical evolution of gully erosion and its response to land use change during 1968–2018 in the Mollisol region of Northeast China

Cited by 6 publications

References 78 publications

Stable gullies provide a suitable habitat for functional insects and reduce the threat of pests on crops in farmland of Northeast China

Stable gullies provide a suitable habitat for functional insects and reduce the threat of pests on crops in farmland of Northeast China

Temporal and Spatial Variation in Rainfall Erosivity in the Rolling Hilly Region of Northeast China

Gully erosion development during an extreme flood event using UAV photogrammetry in an arid area, Iran

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