乌兰布和沙区周边荒漠植物多样性保护与可持续发展探讨

乌兰布和沙区地处亚洲中部荒漠区和草原区的过渡地带,是一条极为重要的植物地理学分界线。经过对该区植物种群多样性的初步研究显示:研究区有本底植物约312种,荒漠植物种多样性相对较为丰富,以蒙古种、戈壁-蒙古种、戈壁种以及地中海区系的荒漠种类占主导地位,旱生、沙生、盐生类灌木及半灌木种类占绝对优势,荒漠植物生活型多样(有11个类型);本区与周边毗邻地区植物区系相互联系既紧密又广泛。通过对荒漠植物多样性丧失原因的分析,提出了多样性保护与可持续发展的对策。

Sustainable Development of the Desert Plant Diversity around Ulan Buh Desert Region

Ulan Buh Desert is situated at the transition zone between wilderness area and the prairie area in Asia.There is an important phytogeography boundary.Study on the desert plant diversity was carried out around Ulan Buh Desert region.Preliminary results are as follows: there are 312 native plant species and the abundance of their diversity is richer than that in other desert regions in Northwest China.The plant geographical compositions are mainly composed of the species of the ancient Mediterranean,the Middle Asia and Mongolia Gobi ect.The shrub and half-shrub species of xerophyte,halophyte and arenicolous plant take the superiority and they have 11 life types of flora diversity.The correlation between the local and neighboring flora areas is close and extensive.Based on the analysis on the reasons of the loss of the desert plant diversity,this article proposed ecologyical countermeasure of promoting the sustainable development of and conservation of desert plant diversity in the pastoral area and oasis.