In modern cities, greenland is becoming smaller and smaller.Every Chinese occupies 1.7 mu of grecnland, only 18 per cent of the world’s average. Chengdu today remains less than 200 old trees (100 years) and the per c...In modern cities, greenland is becoming smaller and smaller.Every Chinese occupies 1.7 mu of grecnland, only 18 per cent of the world’s average. Chengdu today remains less than 200 old trees (100 years) and the per capita greenland for Chengdu pcople is less than 2 sq. meters. Luekily, we have known the importance of greenland. Every Mareh 12 has been assigned “the Tree-Planting Day” since 1928, in memory of Dr. Sun Yat-sen.展开更多
文摘In modern cities, greenland is becoming smaller and smaller.Every Chinese occupies 1.7 mu of grecnland, only 18 per cent of the world’s average. Chengdu today remains less than 200 old trees (100 years) and the per capita greenland for Chengdu pcople is less than 2 sq. meters. Luekily, we have known the importance of greenland. Every Mareh 12 has been assigned “the Tree-Planting Day” since 1928, in memory of Dr. Sun Yat-sen.