Short-Term Artificial Revegetation with Herbaceous Species Can Prevent Soil Degradation in a Black Soil Erosion Gully of Northeast China

Jielin Liu, Yong Zhu, Jianye Li (), Xiaolei Kong, Qiang Zhang, Xueshan Wang, Daqing Peng and Xingyi Zhang
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Jielin Liu: Department of Herbage Breeding, Prataculture Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150081, China
Yong Zhu: State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China
Jianye Li: State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China
Xiaolei Kong: Department of Herbage Breeding, Prataculture Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150081, China
Qiang Zhang: Department of Herbage Breeding, Prataculture Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150081, China
Xueshan Wang: Department of Herbage Breeding, Prataculture Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150081, China
Daqing Peng: Department of Herbage Breeding, Prataculture Research Institute, Heilongjiang Academy of Agricultural Sciences, Harbin 150081, China
Xingyi Zhang: State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China

Land, 2024, vol. 13, issue 9, 1-17

Abstract: Understanding the effects of short-term artificial revegetation on preventing soil degradation in erosion gullies of black soil areas is essential to choosing the most suitable species of vegetation for controlling the development of erosion gullies. A field experiment with short-term artificial revegetation with herbaceous species ( Medicago sativa L., Glycyrrhiza pallidiflora Maxim., Elytrigia repens (L.) Desv. ex Nevski, Rheum palmatum L., Asparagus officinalis L., Trifolium repens L., Bromus inermis Leyss., Elymus dahuricus Turcz.) and a runoff scouring test were conducted in a typical erosion gully in a black soil area. Soil erosion, physicochemical characteristics, and shoot/root characteristics were measured to evaluate the effects of short-term artificial revegetation. Short-term artificial revegetation significantly decreased ( p < 0.05) sediment yield by 91.1% ± 7.2% compared with that of bare soil. Soil total nitrogen (TN), total potassium (TP), available phosphorus (AP), cation exchange capacity (CEC), water-stable aggregates > 0.25 mm (WR 0.25 ), and aggregate mean weight diameter (MWD) and mean geometric diameter (GWD) were significantly correlated with vegetated treatments, indicating they were factors sensitive to short-term artificial revegetation. Except for total potassium (TK), the other soil characteristics decreased in vegetated treatments. In addition to increasing TK, vegetated treatments also increased soil available nitrogen (AN)/TN ratios in the short term. The overall effects of different herbaceous species on soil and water conservation, soil quality, and vegetation growth were evaluated, and Trifolium repens L. is the most suitable for preventing soil degradation in an erosion gully. The results of this study will provide a reference for the restoration and protection of the ecological environment in black soil areas with gully erosion.

Keywords: vegetation restoration; soil aggregate size fractions; sediment yield; root characteristics; soil physicochemical characteristics (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2024
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