Study on repair technology of degraded vegetation ecosystems in Karst regions

Karst region is an typical ecological fragile in Karst areas of southwestern China.Forest ecosystem is the most important barrier to control desertification,soil erosion,and addition water conservation in the Karst region,but its own productivity,biological quality and significantly lower than the same latitude forest ecosystem and stability is poor,vulnerable to interference and sabotagedegradation.On the basis of a deep understanding of the meaning of degraded ecosystems,the general features of the Karst forest ecosystem degradation,and the typical degraded forest ecosystem restoration techniques were summaried.