Cropping system shifts enhanced nutrient yields under changing daily hydrological processes in a coastal watershed of Eastern China
文献类型：期刊论文
| 作者 | Li, Yanqiang; Zhang, Peipei; Yan, Weijin; Wang, Fang; Wang, Jianing |
| 刊名 | HYDROLOGICAL PROCESSES
 |
| 出版日期 | 2023-06-01 |
| 卷号 | 37期号:6页码:e14925 |
| ISSN号 | 1099-1085 |
| 关键词 | cropping systems Dagu River watershed nutrient export coefficient nutrient runoff yield |
| DOI | 10.1002/hyp.14925 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Agricultural cropping systems in coastal areas of China have experienced significant shifts, and nitrogen (N) and phosphorus (P) losses via surface runoff from fields have considerably increased. However, it is unclear how changes in cropping systems coupled with rainfall-runoff affect nutrient losses in coastal areas. In this study, in-situ daily rainfall-runoff events in agricultural fields in the Dagu River watershed (a coastal area of Shandong Province, Southeastern China) were observed and the dissolved nutrient losses measured. The fields comprised three cropping systems-wheat-maize rotation (W-M), vegetable-maize rotation (V-M) and vegetable-vegetable rotation (V-V). The runoff yields of total dissolved nitrogen (TDN) and total dissolved phosphorus (TDP) in V-V (10.4 +/- 0.8 kg N ha(-1) year(-1) and 3.90 +/- 0.1 kg P ha(-1) year(-1)) and V-M (6.52 +/- 0.31 kg N ha(-1) yr(-1) and 2.12 +/- 0.08 kg P ha(-1) year(-1)) were significantly higher than those in W-M (1.51 +/- 0.15 kg N ha(-1) year(-1) and 0.84 +/- 0.08 kg P ha(-1) year(-1)), and the nutrient export coefficients were 291-1271 and 146-489 kg ha(-1) year(-1) m runoff(-1) for TDN and TDP, respectively. Remarkable shifts in cropping systems coupled with varied rainfall-runoff are dominant factors responsible for agricultural nutrient losses. TDN and TDP losses would increase by 70.0% and 59.8%, respectively, if the watershed traditional cropping system of W-M is completely replaced by V-V. The TDN and TDP losses would increase by 36.36%-46.97% under the SSP2-4.5 and SSP5-8.5 climate scenarios until 2100 with a 50% of the watershed area of traditional agricultural plantation converted to modern plantation. This study can enhance our understanding of the effects of cropping system changes coupled with varied rainfall-runoff on nutrient losses in coastal areas of China. |
| 学科主题 | Water Resources |
| WOS关键词 | NITROGEN USE EFFICIENCY ; PHOSPHORUS LOSSES ; PADDY FIELDS ; SOIL ; EUTROPHICATION ; EXPORT ; SEA ; MANAGEMENT ; FERTILIZER ; RUNOFF |
| WOS研究方向 | Water Resources |
| 出版者 | WILEY |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/193854]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 作者单位 | 1.Shandong Agricultural University 2.Chinese Academy of Sciences 3.Institute of Geographic Sciences & Natural Resources Research, CAS 4.University of Chinese Academy of Sciences, CAS |
| 推荐引用方式 GB/T 7714 | Li, Yanqiang,Zhang, Peipei,Yan, Weijin,et al. Cropping system shifts enhanced nutrient yields under changing daily hydrological processes in a coastal watershed of Eastern China[J]. HYDROLOGICAL PROCESSES,2023,37(6):e14925. |
| APA | Li, Yanqiang,Zhang, Peipei,Yan, Weijin,Wang, Fang,&Wang, Jianing.(2023).Cropping system shifts enhanced nutrient yields under changing daily hydrological processes in a coastal watershed of Eastern China.HYDROLOGICAL PROCESSES,37(6),e14925. |
| MLA | Li, Yanqiang,et al."Cropping system shifts enhanced nutrient yields under changing daily hydrological processes in a coastal watershed of Eastern China".HYDROLOGICAL PROCESSES 37.6(2023):e14925. |
入库方式： OAI收割
来源：地理科学与资源研究所
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