值此防治荒漠化和干旱世界日，让我们重申对防治荒漠化和土地退化以及减少干旱影响的承诺；我们应当认识到，改善土壤，就是改善我们的生活。
On this Day, let us reaffirm our commitment to combating desertification and land degradation and mitigating the effects of drought; and let us recognize that enhancing soils enhances life.
结果表明，土地退化的主要原因是近年持续干旱少雨，土地利用的强度过大，以及在干旱季节里没有适当的防护措施等。
The results show that the major reason for the land degradation is constant aridity such as shortage of rain, excessive use of land, and shortage of protection measures in dry seasons.
地理信息系统(GIS)支持下的土壤信息系统(SIS)在评价土地生产能力、土地退化的现状、速率和风险以及全球变化研究中具有重要意义。
GIS based soil information system (SIS) is very important for assessment of the capacity of land production, the status, rates of soil degradation and global change studies.
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