土壤硒形态及其相互转化因子的研究

近年来，天然富硒农产品的生产及加工成为研究热点。决定植物硒含量的主要因素为土壤有效形态硒含量，因此了解土壤硒形态及转化关系，寻找提高硒有效性方法尤为重要。笔者通过对国内外硒研究文献的整理和分析，对土壤硒形态的分类、土壤硒形态间的转化及提高土壤硒有效性的因素等进行深入分析。了解土壤硒化学形态和浸提形态及其关系，进一步研究不同形态间转化的驱动因子，寻找提高富硒区土壤硒有效性的方法。结合不同富硒区域土壤及作物特点，采取不同的硒素活化方法，为进一步开展相关研究提供更多科学依据。

Morphology and Interconversion Factor of Selenium in Soil

In recent years,production and processing of natural selenium-rich agricultural products become a research hotspot. The main factor affecting the selenium content in soil was effective form . So it was particularly important to understanding the conversion relationship of selenium forms in the soil and find ways to improve selenium effectiveness. By analyzing the past research on selenium in soils, this paper analyzes the classification of soil selenium morphology, the transformation of soil selenium morphology and the factors that improved the validity of selenium. Insight into the relationship between chemical form and leaching form of selenium in soil,study the conversion factors of different forms of selenium. Looking for ways to improve selenium effectiveness in rich selenium areas. Combining soil and crop characteristics of different rich selenium regions,taking different selenium activation methods, provide more scientific evidence for the research.