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| 基于GIS的宜春市本级耕地地力研究 | |
| 引用本文： | 陈拾娇.基于GIS的宜春市本级耕地地力研究[J].中国农学通报,2014,30(20):270-275. |
| 作者姓名： | 陈拾娇 |
| 作者单位： | 江西农业大学国土学院 |
| 基金项目： | 国家科技支撑计划项目 高淀粉酿造高粱新品种选育与产业化示范;江西省社会科学研究“十二五”规划课题;南昌市“十二五”社科规划课题重点项目;江西教育厅科技项目 |
| 摘 要： | 为了摸清全区耕地地力现状，维护耕地数量和质量平衡。在GIS技术支持下，利用1:50000土地利用现状图、土壤图和行政区划图等叠置分析确定评价单元737个，研究选取立地条件、剖面性状、障碍因素、耕层状况、土壤管理等5个层次的14个评价因子。结果表明：全区3543.18 hm2耕地可分为7个等级，其中一等地355.24 hm2，二等地533.64 hm2，三等地575.72 hm2，四等地738.09 hm2，五等地503.53 hm2，六等地445.06 hm2，七等地391.90 hm2；分别占宜春市本级全区耕地总面积的10.03%、16.25%、16.25%、20.83%、14.21%、12.26%、11.06%。通过研究可知宜春市本级耕地地力现状总体较好。 |
| 关 键 词： | 番茄幼苗 番茄幼苗 穴盘苗 贮运环境 质量保持 营养基质 |
| 收稿时间： | 2013/11/1 0:00:00 |
| 修稿时间： | 2013/12/11 0:00:00 |
Research Based on GIS of Farmland Productivity at Yichun City |
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| Abstract: | Abstract:In order to grasp the details of Yichun city level fertility of arable land, more efficient and sustainable use of land resources in the development of modern agriculture. Through GIS applications in the field investigation and laboratory analysis, based on the use of 1:50000 land use maps, soil maps overlay analysis determine the evaluation unit 737, application specialists empirical method combined with the actual site conditions selected, profile characteristics, barriers factors, topsoil conditions, soil management, the five-level, 14 evaluation factors to establish farmland evaluation system and its models, using Delphi method and fuzzy mathematics method to determine the membership degree evaluation factor, using AHP to determine the weights of evaluation factors values, using the method to calculate the cumulative integrated fertility index of arable land, the use of cumulative frequency curve method to obtain comprehensive results Yichun farmland. |
| Keywords: | farmland level |
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