Soil erosion and corn yield in a cultivated catchment of the Chinese Mollisol region

NWIPB OpenIR

	Soil erosion and corn yield in a cultivated catchment of the Chinese Mollisol region
	Yang, Weige; Zhang, Xiaocun; Gong, Wei; Ye, Yuanyuan; Yang, Yongsheng
	2019
发表期刊	PLOS ONE
卷号	14 期号:10
摘要	Evaluation of soil redistribution rates and influence on crop yield in agricultural catchments is very important information, which can provide a scientific basis for arrangement of soil and water conservation measures and sustainable crop production. In recent decades, the soil erosion has greatly aggravated in the Mollisol region of Northeast China due to unreasonable land management, which in turn has reduced crop yield. The objectives of this study were to investigate the spatial distribution of soil redistribution and the relationship between crop yield and soil redistribute at a catchment of the Chinese Mollisol region. A total of 176 soil samples were collected based on a 200 m by 200 m grid and 4 yr of corn (Zea mays L.) yields were measured. The Cs-137 trace technique and Zhang Xinbao's mass balance model indicated that the soil redistribution rates ranged from -7122.25 to 5471.70 t km(-2) yr(-1) and averaged -830.10 t km(-2) yr(-1). Soil erosion dominated in the research area. The corn yields for four years ranged from 43.24 to 136.19 kg km(-2) and averaged 90.42 kg km(-2). The spatial distribution of soil redistribution rates and corn yield showed a similar ribbon and plaque characteristics at the catchment. An equation between corn yield and soil redistribution rates was fitted and showed that there was a significant negative correlation between corn yield and soil erosion rates, while there was no relationship between the corn yield and soil deposition rates. Therefore, effective soil and water conservation measures are urgently needed to increase crop yield and realize sustainable land-use management.
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/60508
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Yang, Weige,Zhang, Xiaocun,Gong, Wei,et al. Soil erosion and corn yield in a cultivated catchment of the Chinese Mollisol region[J]. PLOS ONE,2019,14(10).
APA	Yang, Weige,Zhang, Xiaocun,Gong, Wei,Ye, Yuanyuan,&Yang, Yongsheng.(2019).Soil erosion and corn yield in a cultivated catchment of the Chinese Mollisol region.PLOS ONE,14(10).
MLA	Yang, Weige,et al."Soil erosion and corn yield in a cultivated catchment of the Chinese Mollisol region".PLOS ONE 14.10(2019).