基于潜力指数组合的耕地质量等级监测布点方法
耕地的数量、质量问题关系中国的粮食安全和社会的长治久安,耕地质量等级监测工作是贯彻落实耕地保护政策的一项重要举措。该文依托耕地质量等级监测试点项目,以北京市大兴区为例,对监测样点的布设方法进行了研究。在划分监测控制区的基础上,根据影响耕地质量的主要土壤特征,建立"自然等别-主导因素"理论模型,并用所建模型对控制区进行细分,在此基础上进行监测样点的布设。分析得出,大兴区耕地质量等级监测共划分6个监测控制区,39个自然等提等潜力指数组合类型;通过对39个自然等提等潜力指数的组合,得到8种"自然等别-主导因素"类型,在此基础上布设监测样点58个。研究成果显著提高了监测样点的精度,保证了监测样点的代表...
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| Published in | 农业工程学报 Vol. 29; no. 4; pp. 245 - 254 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国地质大学北京土地科学技术学院,北京 100083%国土资源部土地整治重点实验室,北京 100035%国土资源部农用地质量与监控重点实验室,北京 100035
2013
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1002-6819 |
| DOI | 10.3969/j.issn.1002-6819.2013.04.031 |
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| Summary: | 耕地的数量、质量问题关系中国的粮食安全和社会的长治久安,耕地质量等级监测工作是贯彻落实耕地保护政策的一项重要举措。该文依托耕地质量等级监测试点项目,以北京市大兴区为例,对监测样点的布设方法进行了研究。在划分监测控制区的基础上,根据影响耕地质量的主要土壤特征,建立"自然等别-主导因素"理论模型,并用所建模型对控制区进行细分,在此基础上进行监测样点的布设。分析得出,大兴区耕地质量等级监测共划分6个监测控制区,39个自然等提等潜力指数组合类型;通过对39个自然等提等潜力指数的组合,得到8种"自然等别-主导因素"类型,在此基础上布设监测样点58个。研究成果显著提高了监测样点的精度,保证了监测样点的代表性和耕地质量监测信息的完整性。 |
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| Bibliography: | The quantity and quality of arable land is important to our country's food security and the long-term stability of the community. Farmland quality monitoring is an important measure to implement the farmland protection policy. Monitoring changes in farmland quality is needed. This study focuses on 1) monitoring the work as a fledgling local technical reserve, 2) financing difficulties, 3) how to choose the optimization and the least amount of monitoring points, and 4) controlling arable land quality level. Daxing District, Beijing serves as a study area to investigate the layout method of monitoring points for farmland quality level monitoring. A theoretical model named "Agricultural land natural level- Dominant factor" is established by dividing the monitoring control areas according to the main soil characteristics that affect the quality of cultivated land, Then, the "Agricultural land natural level- Dominant factor" theoretical model is used to subdivide monitoring control areas to emplace the monitoring |
| ISSN: | 1002-6819 |
| DOI: | 10.3969/j.issn.1002-6819.2013.04.031 |