农用地分等中几种β值计算方法的比较

目的]在农用地分等工作中需要把不同作物折算到同一基础上进行比较,不同折算方法会给结果带来多大差异是值得关注的问题。方法]总结目前常见的5种折算方法,在全国随机抽取样点进行产量折算,对折算结果进行统计分析。结果]5种折算方法间的差异并不十分显著,但不同折算方法在地域上的误差表现会有所不同。结论]选择β时不仅要考虑研究目的,还要考虑研究地域的影响,用蛋白质含量折算也许是目前适宜于大部分研究领域的方法。

The Comparing of Various Methods of Calculate β in Arable Land Grading

Objective]When grading the agricultural land,we need to convert different crops to compare them on the same base.The difference among various methods of converting is noticeable.Method]Having summed up the present used 5 methods of converting,and analyzing the converted yields in different areas picked randomly nationwide.Result]we come to the conclusion that there is no obvious difference among different,but different errors are discovered due to different regions.Conclusion]When we choice a kind of β,we need to consider not only the purpose of research,but also the research regions.thus the converting methods of protein maybe more adapt to be used in many research field.