Owing to the diversity of the situations prevailing in the various parts of the world and of the seriousness of land degradation and desertification, different levels of progress have been achieved in the strategic action areas.
由于世界各地的情况各不相同，以及土地退化和荒漠化的严重程度不同，因此在战略行动领域中取得进展的程度也不一样。