Simplified mass balance models for assessing soil erosion rates on cultivated land using caesium-137 measurements
文献类型：期刊论文
| 作者 | Zhang, XB; Walling, DE; He, Q |
| 刊名 | HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES
 |
| 出版日期 | 1999-02 |
| 卷号 | 44期号:1页码:33-45 |
| DOI | 10.1080/02626669909492201 |
| 文献子类 | Article |
| 英文摘要 | Soil erosion on agricultural land has become a global environmental problem and information on rates of soil loss is an important requirement both for quantifying the problem and for developing improved land management and soil conservation practices. The use of fallout Cs-137 measurements overcomes many of the difficulties facing traditional approaches to erosion monitoring and affords an effective means for obtaining estimates of soil redistribution rates on cultivated land. A number of empirical functions and theoretical models have been developed to establish the relationship between the change in the soil. Cs-137 inventory relative to the local Cs-137 fallout input and the rate of soil redistribution. Of these approaches, physically-based mass balance models have received increasing emphasis, but their application may be hampered by their complexity and the need to specify values for a number of parameters. This paper presents a refined simplified point-based mass balance model for deriving estimates of soil redistribution rate from soil Cs-137 data for individual sampling points. This model incorporates at number of important factors which are included in more comprehensive mass balance models. A spatially-averaged mass balance approach is also presented. This can be used to estimate water-induced soil erosion rates at different spatial scales in situations where detailed information on within-field variation of soil redistribution rates is not needed but information on net erosion rates or sediment output from a field is required. |
| 学科主题 | Water Resources |
| WOS关键词 | CESIUM-137 MEASUREMENTS ; AGRICULTURAL LAND ; LOESS PLATEAU ; CS-137 ; PB-210 ; CHINA |
| WOS研究方向 | Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000078567600003 |
| 出版者 | IAHS PRESS, INST HYDROLOGY |
| 源URL | [http://ir.ieecas.cn/handle/361006/11990]  |
| 专题 | 黄土与第四纪地质国家重点实验室（1985-2004） |
| 推荐引用方式 GB/T 7714 | Zhang, XB,Walling, DE,He, Q. Simplified mass balance models for assessing soil erosion rates on cultivated land using caesium-137 measurements[J]. HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES,1999,44(1):33-45. |
| APA | Zhang, XB,Walling, DE,&He, Q.(1999).Simplified mass balance models for assessing soil erosion rates on cultivated land using caesium-137 measurements.HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES,44(1),33-45. |
| MLA | Zhang, XB,et al."Simplified mass balance models for assessing soil erosion rates on cultivated land using caesium-137 measurements".HYDROLOGICAL SCIENCES JOURNAL-JOURNAL DES SCIENCES HYDROLOGIQUES 44.1(1999):33-45. |
入库方式： OAI收割
来源：地球环境研究所
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