沙漠化威胁人类生存和发展——各国要协力防治沙漠蔓延

Desertification Threatens Human's Survival and Development: Countries Should Work Together to Prevent and Cure Deserts Spread

沙漠化、荒漠化和土地退化已成为人类生存和发展的重大威胁。全球陆地面积的1/4,即35.92亿hm2的土地受到沙漠化的侵蚀;全球荒漠化面积达3600万平方公里,并仍以每年5万-7万平方公里的速度扩展;全球超过20%的耕地、30%的森林和10%的草原正在退化。联合国有关机构预测,如不采取措施防治"三化",在2027年前,非洲、亚洲和南美洲可能分别减少2/3、1/2和1/5的耕地,世界1/3人口的生存和发展面临直接威胁。各国协力防治"三化"不仅让当代人受益,而且为人类永续发展奠定坚实基础。

Sandy desertification, desertification, and land degradation have been three major threats to human's survival and development. A quarter of the world's land area is affected by sandy desertification, the desertification area in the world has reached 36 million square kilometers and keeps growing, and over 20% of cultivated lands, 30% of forests, and 10% of grasslands are degrading. One UN agency forecasts that if desertification not prevented, Africa, Asia and South America will reduce respectively 2/3, 1/2 and 1/5 of their cultivated lands till 2027, then survival and development of 1/3 of the world population will be threatened. Countries' working together to prevent desertification not only benefits contemporaries but also lay a solid foundation for human's sustainable development.