摘要
通过对浑善达克沙地桑根达来地段1km2范围的详细调查,发现204种维管植物,35个群系。与同属典型草原地带相同地段乌力雅斯太草原,只有11个群系。沙地是最好的冬季牧场,是干旱区的地下水库。相关资料显示,我国沙漠和沙地目前比较稳定,不像是某些媒体所说的在强烈扩大。另外,沙漠和沙地不是沙尘源。因此,不得不审视我们对沙地和沙漠的错误看法。
The desert and sandy land area is 81 square kilometers,second only to Australia and Saudi Arabia,the world third. our country belongs to the quaternary temperate desert,differents from the rest of the world's tropical,subtropical deserts. Desert and sandy land,is the important ecosystem especially in arid areas. It is the underground reservoirs of arid zone,the best place for performance of biodiversity. There are 204 species of vascular plants,35 formation on the ground of only 1 square kilometers in Inner Mongolia HunShan Da Ke sand. There are many kinds of plants under special state protection,such as Populus euphratica,Haloxylon ammodendron,Cistaeche desserticola,Ammopiptanthus mongolicus and so on,there are the important forage crops,such as Caragana korshinskii,Hedysarum scoparium etc.,and the valuable psammophyte and bactrian camel and the other animals in China's desert areas. Its ecological system is superior to the zonal desert and grassland. Isn't desert and sand dust source,is the ecological barrier. At the same time,the desert and the sand is very fragile,must treat,not easy to change,plant trees green,inappropriate artificialization. we must change the wrong views of the desert and sandy land about pursuit of sand industry,grass industry one- sidedly. In fact,nomadic is the most effective and most sustainable way of operating.
出处
《环境与发展》
2015年第1期5-12,共8页
Environment & Development
关键词
浑善达克沙地
植物群落
分布特征
多样性分析
Hun Shan Da Ke sand
Phytoecommunity
Distribution characteristics
Diversity analysis
