Academic Journal
SOIL NITROGEN CYCLING AND ENVIRONMENTAL IMPACTS IN THE SUBTROPICAL HILLY REGION OF CHINA: EVIDENCE FROM MEASUREMENTS AND MODELING
| العنوان: | SOIL NITROGEN CYCLING AND ENVIRONMENTAL IMPACTS IN THE SUBTROPICAL HILLY REGION OF CHINA: EVIDENCE FROM MEASUREMENTS AND MODELING |
|---|---|
| المؤلفون: | Jianlin SHEN, Yong LI, Yi WANG, Yanyan LI, Xiao ZHU, Wenqian JIANG, Yuyuan LI, Jinshui WU |
| المصدر: | Frontiers of Agricultural Science and Engineering, Vol 9, Iss 3, Pp 407-424 (2022) |
| بيانات النشر: | Higher Education Press |
| سنة النشر: | 2022 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | nitrogen cycling|soil nitrogen|nitrogen deposition|greenhouse gases emission|non-point source pollution|nitrogen use efficiency, Agriculture (General), S1-972 |
| الوصف: | ● Soil nitrogen fluxes and influencing factors were reviewed in the subtropical hilly regions. ● Fertilizer application and atmospheric deposition contributed largely to soil nitrogen input. ● High gaseous, runoff and leaching losses of soil nitrogen were measured. ● Soil nitrogen cycles are well modelled with the Catchment Nutrients Management Model. The subtropical hilly region of China is a region with intensive crop and livestock production, which has resulted in serious N pollution in soil, water and air. This review summarizes the major soil N cycling processes and their influencing factors in rice paddies and uplands in the subtropical hilly region of China. The major N cycling processes include the N fertilizer application in croplands, atmospheric N deposition, biological N fixation, crop N uptake, ammonia volatilization, N 2 O/NO emissions, nitrogen runoff and leaching losses. The catchment nutrients management model for N cycle modeling and its case studies in the subtropical hilly region were also introduced. Finally, N management practices for improving N use efficiency in cropland, as well as catchment scales are summarized. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2095-7505 |
| Relation: | https://academic.hep.com.cn/fase/fileup/2095-7505/PDF/31729/1651046647317-194532432.pdf; https://doaj.org/toc/2095-7505; https://doaj.org/article/ecb47bab50df4eddbadd27a7d8004e94 |
| DOI: | 10.15302/J-FASE-2022448 |
| الاتاحة: | https://doi.org/10.15302/J-FASE-2022448 https://doaj.org/article/ecb47bab50df4eddbadd27a7d8004e94 |
| رقم الانضمام: | edsbas.1BA8E2CB |
| قاعدة البيانات: | BASE |
| تدمد: | 20957505 |
|---|---|
| DOI: | 10.15302/J-FASE-2022448 |