Dynamics and its influence to our country of environmental pollutants in soils in semi-arid region, Northeast Asia

在东北亚半干旱地区，近年来家畜数量迅速增加。牲畜大量过度放牧，造成天然草地严重退化。此外，由于东亚大陆最近的气候变化造成的大面积干旱，草地植被覆盖减少。这些变化很可能导致严重的土壤退化，并将大量土壤粉尘释放到大气中。本研究明确了湖台国家公园（HNP）河水及周围土壤中含有雌激素样物质。来自城市地区的雌激素样物质对郊区的污染是相当大的。为了人类健康、野生动物（Takhi）和环境资源保护（草原），有必要对污水处理的传统观念进行反思。至于海地警察对塔希人的保护，我们应该让他们远离图尔河。

In semi-arid region, Northeast Asia, the livestock population has rapidly increased in recent years. Excessive grazing due to large numbers of livestock causes severe degradation of natural grassland. Furthermore, the vegetation cover of grassland has been reduced by extensive droughts caused by recent climatic changes in continental East Asia. These changes are likely to result in severe soil degradation and the release of large quantities of soil dust into the atmosphere.This study clarified that estrogen-like substances were contained in Hustai National Park(HNP)-tur river water and surrounding soil. It can be considerable that estrogen-like substances from urban area cause contaminations suburb area.For human health, wildlife (Takhi), and the environmental resource protection (grassland), it is necessary to rethink conventional wisdom about effluent treatment.In so far as Takhi protection in HNP, we should keep them away from Tur river.