Using reservoir deposits to reconstruct the impact of recent changes in land management on sediment yield and sediment sources for a small catchment in the Black Soil region of Northeast China

Geoderma ◽  
2019 ◽  
Vol 343 ◽  
pp. 139-154 ◽  
Author(s):  
Donghao Huang ◽  
Pengfei Du ◽  
Des E. Walling ◽  
Duihu Ning ◽  
Xin Wei ◽  
...  
Keyword(s):  
Land Management ◽  
Sediment Yield ◽  
Northeast China ◽  
Black Soil ◽  
Sediment Sources ◽  
Small Catchment ◽  
Black Soil Region ◽  
The Impact ◽  
Reservoir Deposits

Identification of sediment sources and exploration of scale effects in the black soil region of Northeast China

CATENA ◽  
2020 ◽  
Vol 195 ◽  
pp. 104848
Author(s):  
Donghao Huang ◽  
Mingze Pei ◽  
Lili Zhou ◽  
Haoming Fan ◽  
Yanfeng Jia
Keyword(s):  
Northeast China ◽  
Scale Effects ◽  
Black Soil ◽  
Sediment Sources ◽  
Black Soil Region

The impact of sheet and gully erosion on soil aggregate losses in the black soil region of Northeast China

2013 ◽  
Vol 33 (24) ◽  
Author(s):  
姜义亮 JIANG Yiliang ◽  
郑粉莉 ZHENG Fenli ◽  
王彬 WANG Bin ◽  
温磊磊 WEN Leilei ◽  
沈海鸥 SHEN Hai'ou ◽  
...  
Keyword(s):  
Northeast China ◽  
Black Soil ◽  
Soil Aggregate ◽  
Gully Erosion ◽  
Black Soil Region ◽  
The Impact

Effects of spatial scale on fingerprinting properties and sediment contributions in the black soil region of Northeast China

2020 ◽  
Author(s):  
Donghao Huang
Keyword(s):  
Spatial Variability ◽  
Northeast China ◽  
Spatial Scales ◽  
Black Soil ◽  
Sediment Fingerprinting ◽  
Sediment Sources ◽  
Sediment Samples ◽  
Black Soil Region ◽  
Significant Difference ◽  
Streambed Sediment

<p>Sediment provenance is an important factor in understanding soil erosion processes or assessing the ecological effects of soil and water conservation measures. Sediment fingerprinting is an effective technique used globally for identifying sediment sources. Few studies have examined sediment sources at different spatial scales. In this study, sediment fingerprinting was used with a Bayesian mixing model to quantify the relative contributions of different sediments to streambeds in the Hebei catchment (ca. 28.0 km<sup>2</sup>) and its sub-catchment (ca. 3.5 km<sup>2</sup>) in the black soil region of Northeast China. Three potential sediment sources were identified: cultivated topsoil, uncultivated topsoil, and gullies. A similar number of sediment samples were collected for each source in both catchments: 71 and 69 sediment samples from the sub-catchment and Hebei catchment, respectively. Five uniformly distributed streambed sediment samples were collected from each catchment. The results showed a significant difference in the spatial variability of fingerprinting properties between the two catchments (p < 0.01). The spatial variability in fingerprint properties of cultivated topsoil and gully soil was more sensitive to scale than that of uncultivated topsoil. The optimum composite fingerprint that was used to discriminate potential sediment sources differed between the sub-catchment and Hebei catchment. Cultivated topsoil and gully soil were the main sediment sources, comprising more than 95% of the streambed sediment. There were significant differences (p < 0.01) in the contributions of cultivated topsoil and gully soil at different spatial scales. Cultivated topsoil contributed 47.8% and 42.0% in the sub-catchment and Hebei catchment, respectively, whereas gully soil contributed 49.6% and 55.3% (mean absolute fit >0.95). The upper stream segment mainly received sediment from the gullies (>60%) and the contribution from cultivated topsoil gradually increased downstream.</p>

Chronic effects of different fertilization regimes on nirS-type denitrifier communities across the black soil region of Northeast China

Pedosphere ◽  
2020 ◽  
Vol 30 (1) ◽  
pp. 73-86 ◽  
Author(s):  
Xiaojing HU ◽  
Junjie LIU ◽  
Dan WEI ◽  
Ping ZHU ◽  
Xi'an CUI ◽  
...  
Keyword(s):  
Northeast China ◽  
Black Soil ◽  
Chronic Effects ◽  
Black Soil Region ◽  
Denitrifier Communities
Sign in / Sign up

Export Citation Format

Share Document