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| 基于GIS技术的上海精准农业水稻生产潜力估算模型——考虑土壤肥力空间差异的影响 | |
| 引用本文： | 丁美花,杨星卫,李湘阁,薛正平.基于GIS技术的上海精准农业水稻生产潜力估算模型——考虑土壤肥力空间差异的影响[J].土壤通报,2006,37(1):56-60. |
| 作者姓名： | 丁美花 杨星卫 李湘阁 薛正平 |
| 作者单位： | 1. 广西区气象减灾研究所,广西,南宁,530022 2. 上海精准农业有限公司,上海,200030 3. 南京气象学院,江苏,南京,210044 |
| 基金项目： | 中国科学院知识创新工程项目 |
| 摘 要： | 基于精准农业精细与准确的原则,利用层次分析法与模糊数学相结合的方法,详细分析了试验区土壤肥力的空间分布情况,并将其作为水稻生产潜力差异的主要影响因素。此外再综合考虑光、温、水等因素的影响,分别计算了光合潜力、光温潜力、气候———生物潜力及各采样点的农业自然生产潜力。推算结果通过了实际资料的验证,生产潜力与当年水稻实际产量达到显著相关水平。同时根据农业自然生产潜力值绘制了空间分布图,根据图上各点所能实现的产量,可以确定具体的施肥量,对田间定点、定量施肥具有很好的指导意义,避免等同施肥造成的肥料浪费,降低对环境的污染。 |
| 关 键 词： | 精准农业 水稻生产潜力 估算模型 GIS |
| 文章编号： | 0564-3945(2006)01-0056-05 |
| 修稿时间： | 2004年10月18 |
Estimation Model of Rice Productivity Potential for Precision Agriculture Based on GIS |
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| DING Mei-hua,YANG Xing-wei,LI Xiang-ge,XUE Zheng-ping.Estimation Model of Rice Productivity Potential for Precision Agriculture Based on GIS[J].Chinese Journal of Soil Science,2006,37(1):56-60. | |
| Authors: | DING Mei-hua YANG Xing-wei LI Xiang-ge XUE Zheng-ping |
| Abstract: | Based on the principles of fine and accurate precision agriculture,this paper analyzed spatial distribution of soil fertility on the trial area of precision agriculture of Shanghai in detail,using the combinational method of AHP and Fuzzy Mathematics.The diversity of spatial distribution of soil fertility was regarded as the main influence factor leading to spatial diversity of rice potential productivity.Further,more considering the other influence factors,light,temperature and water,the evaluation models of light,light-temperature,natural climatic and agricultural natural potential productivities of the rice were established respectively.The model of agricultural natural potential productivity considering light,temperature,water and soil fertility gave the potential productivity values of 280 samples.Finally,this paper analyzed the data of the actual yield and potential productivity of rice of 32 samples on trial area by statistical methods,and found out that the two groups data had distinct correlations and uniform diversity of spatial distribution.All of these results proved that the evaluation model of agricultural natural potential productivity was right.So according to the model,the map of space distribution of the potential productivity of rice can be drew.And the values of potential productivity in the map had good guidance meaning in making sure of the quantity of applying fertilizer in a specific way.By it,operation of applying fertilizer of fixedpoint and fixed amount in the field can be realized,which could avoid fertilizer to be waster and lower the pollution of excessive fertilizer to the environment. |
| Keywords: | GIS |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |