榆阳区

第四部分：榆阳区土地利用动态变化分析。

Part four : Study on land use dynamic change in Yuyang suburb .

基于此，该公司拟充分利用榆林市丰富的原料资源和广阔的市场空间，在榆阳区新建沙漠改良剂生产线。

Therefore , the Company plans to take full advantage of the abundant raw material resources and broad market space of Yulin City to build desert ameliorant production line in Yuyang District .

基于TM影像的沙化土地动态变化研究&以榆林市榆阳区河口水库周边地区为例

TM Image Based Study on Dynamic Changes of Land Desertification & A Case Study on Hekou Reservoir Area of YuLin City

榆阳区土地利用和生态效应变化分析

Relation between Land use / cover change and changes of ecological effect in wind drift sand region

重点分析了榆阳区土地利用现状、土地利用模式、土地利用程度、土地利用分区，并对榆阳区土地资源利用的特点和存在的问题作了简要概述。

This part not only analyzes the present land use and the land use subarea , but also summarizes the use characters and problems of land resource .

方法选择榆林市榆阳区6个病村为调查点，每年9～10月份对7～12岁儿童进行病情监测及发硒检测，并了解硒盐防治措施落实情况。

Methods In this surveillance , children aged 7 to 12 years old in six villages were examined on the disease state and hair selenium content during months of 9 to 10 each year within 4 years .