Ecological Study on the Restoration of Karst Mountain Region
Exploiting mineral resources in Karst mountain area has destroyed to surface vegetation and soil, and it is not easy to recovery after vegetation destruction.Natural ecological restoration is a more appropriate method to repair it at present.The study of seed Ecology plays a significant role in Ecological restoration, especially the natural ecological restoration of Karst forest is important.In the experiment of seed rain intensity, there was a significant difference between the seed rain intensity (P=0.001 7) and the seed rain intensity in different years (P＜0.000 1), In the experiment of seed germination, the germination rate of seeds was low,and the low germination rate all resulted in low density of population.In litter experiment, the change of biomass of litter was consistent with the change of water holding rate, and the litter cover was used to cover the damaged soil, which improved the poor water retention in the ecological restoration process of contaminated soil.In the soil restoration experiment carried out in Huaxi, the coverage of the plot covering with 4 cm of soil was close to the maximum experimental value, which was collected in the surrounding undamaged forest, the result has important significance for the restoration of the karst mountain region where soil distribution is sporadic.The restoration strategies for the Karst region include the use of Soil Seed Bank of an intact forest and the forest litter to cover the damaged land to increase the potential of its natural regeneration.In this study, we can carry out more ecological studies of seed bank and litter, learn more about the ecological restoration law, and provide a variety of solutions to the ecological restoration of Karst Mountain.
国家科技期刊平台
NSTL
万方数据
维普
