Effects of Different Burial Depth on Germination of Castanopsis fargesii and Castanopsis carlesii
The effects of different burial depth on the germination of C. fargesii and C. cariesii were explored in gap and understory environment to provide a theoretical reference for building theropencedrymion and enhancing forest land productivity. The results showed that the seed germination rate and seedling survival rate of C. fargesii and C. cariesii decreased with the increase of burial depth. The seed germination rate and seedling survival rate in gap environment was higher than that in understory environment. But the seed death rate was lower than understory. Too deep in the ground had negative effects on seed germination, seedling survival and forest regeneration of C. fargesii and C. cariesii. Conclusion; The burial depth of 0. 5 cm is beneficial for seed germination of C. fargesii and C. cariesii. And the gap environment is more suitable for seed germination and forest regeneration of C. fargesi and C. cariesii than understory environment.
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