Based on the measured data from the winter wheat fields in Zhengzhou of Henan Province, the vertical distribution of root length density(RLD)and root mass density(RMD)were analyzed.

根据在郑州进行的冬小麦根系田间实测资料，研究了根长密度和根质量密度在砂壤土中的垂直分布。

youdao

The urban monitoring system of sun's UV intensity in Henan province based on the World Wide Web(WWW) is developed by our self-manufactured UV monitor.

使用我们自主研发的太阳紫外线监测仪，建立基于宽带网的河南省城市紫外线强度监测系统。

youdao

The paper discussed and evaluated the development and application of tourist re-sources in Nanyang prefecture, Henan province, based on fuzzy maths, matrix and system analysis.

本文主要应用模糊数学、单纯型矩阵和系统分析的方法，对河南省南阳地区旅游资源评价及其开发利用等问题进行研究。

youdao