土地沙漠化，每年消失一个中等县目前，全国沙漠、戈壁、沙漠化土地、风沙化土地约有１５３万平方公里；占国有面积的１５．９％。据林业部预测，若无有效措施，今后十年沙漠化土地将以年增２３００平方公里的速度发展，相当于每年沙化一个中等面积的县。摘自《中国青年报... Land desertification disappears every year in a medium county At present, there are about 1.53 million square kilometers of desertified land, desertified desertified land and desertified land in the country, accounting for 15.9% of the total state-owned land. According to the forecast of the Forestry Department, without effective measures, desertification land will grow at an annual rate of 2,300 square kilometers over the next 10 years, equivalent to desertification of a medium-sized county every year. From "China Youth Daily ...