ISBN: 9787560541303 - 【二手旧书九成新】钱学森 宋平论沙草产业(学习探索钱学森沙草产业理论丛书)甘肃省沙草产业协会,中国治沙暨沙业学会,西安交通大学西安交通大学出版社9787560541303 (1 Ergebnisse)

paperback. Zustand: New. Paperback Pages Number: 200 Language: Chinese. Land desertification is known as the cancer of the Earth. is a major global ecological crisis. At present. the global desertification land area of ??36 million square kilometers. accounting for a total land area of ??1/4. a total of 110 countries. about 2 billion people affected by desertification hazards. China is one of the desertification of the most affected countries in the world. a total of 2.6237 million square kilometers of desertified la.…