西藏地区生产建设活动表土调查与保护探析

Investigation and Protection of Topsoil for Production and Construction Projects in Tibet

近年来,随着西藏地区经济的高速发展,生产建设活动增加,大量地表扰动、土石开挖及回填,不可避免的毁坏了原有地表植被,造成植被破坏,生态环境受到影响。在西藏地区特殊的自然环境条件下,毁坏的原有植被较难恢复,表土是难再生资源,同时也是植被生长的基础条件,表土资源需加强保护利用。根据不同地区土壤类型和特点,利用合理的表土调查法开展表土情况调查工作,做好表土剥离及临时防护,加强表土利用工作,充分合理地利用好有限的表土资源,在生产建设与生态保护之间寻求平衡,使得西藏地区脆弱的生态环境得到保护,实现绿色可持续发展之路。

In recent years,with the rapid economic development in Tibet,production and construction activities have increased.A large number of surface disturbances,earth rock excavation and backfilling have inevitably destroyed the original surface vegetation,causing vegetation damage and affecting the ecological environment.Under the special natural environment conditions in Tibet,it is difficult to recover the original vegetation that has been destroyed.As a hard to regenerate resource,topsoil is also the basic condition for vegetation growth.The protection and utilization of topsoil resources need to be strengthened.According to the types and characteristics of soil in different regions,a reasonable topsoil survey method is used to conduct topsoil investigation,do a good job in topsoil stripping and temporary protection,strengthen the use of topsoil,make full and reasonable use of limited topsoil resources,and seek a balance between production and construction and ecological protection,so as to protect the fragile ecological environment in Tibet and realize green and sustainable development.