Abstract
To understand the natural regeneration of Cyclobananopsis chungii nature forest,seed rain and soil seed bank of a C.chungii forest in Minqing C.chungii Forest Nature Reserve were investigated.The results showed that seed rain continued about two months with an average of 12.44 seeds m-2 and peaked at late November to early December.There's significant difference among the proportions of perfect,worm-eaten,abortive,decayed and germinated seeds in the process of seed rain,in which the proportion of the worm-eaten was 19.44 times as great as the geminated.In the soil seed bank,the proportion of the worm-eaten seed was 53.79%.Compared with the seed rain,the quantities of the perfect and geminated seed were less 2.15 seeds m-2 and 0.20 seeds m-2 respectively.Seed survival rate and the proportion of seed damaged by animals were 13.51% and 45.90%,respectively,which showed that animal damage was the main cause of seed loss.In total,69 species of seeds were recorded in the soil seed bank,with a very low density of germinable seeds and most of them were buried in 2~5 cm in soil.Seedling density of C.chungii was very low in the nature forest,which was closely related to the seed characteristics and habitat.Due to the animal invasion,rotten,abortion,and so on,it's difficult for C.chungii mature seed to long-term preserve in the soil,and the natural regeneration of C.chungii forest was blocked seriously.
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Claims 13
Claim · model-written summary
Seed rain lasted about two months and averaged 12.44 seeds m-2.
Verbatim
e0“seed rain continued about two months with an average of 12.44 seeds m-2”
e1“a C.chungii forest in Minqing C.chungii Forest Nature Reserve”
Claim · model-written summary
Seed rain peaked in late November to early December.
Verbatim
e0“seed rain continued about two months with an average of 12.44 seeds m-2 and peaked at late November to early December”
e1“a C.chungii forest in Minqing C.chungii Forest Nature Reserve”
Claim · model-written summary
Seed rain seed categories differed significantly; worm-eaten seeds were 19.44 times germinated seeds.
Verbatim
e0“There's significant difference among the proportions of perfect,worm-eaten,abortive,decayed and germinated seeds in the process of seed rain,in which the proportion of the worm-eaten was 19.44 times as great as the geminated”
e1“a C.chungii forest in Minqing C.chungii Forest Nature Reserve”
Claim · model-written summary
Worm-eaten seeds made up 53.79% of the soil seed bank.
Verbatim
e0“In the soil seed bank,the proportion of the worm-eaten seed was 53.79%”
e1“a C.chungii forest in Minqing C.chungii Forest Nature Reserve”
Claim · model-written summary
Perfect seeds in the soil bank were 2.15 seeds m-2 fewer than in seed rain.
Verbatim
e0“Compared with the seed rain,the quantities of the perfect and geminated seed were less 2.15 seeds m-2 and 0.20 seeds m-2 respectively”
e1“a C.chungii forest in Minqing C.chungii Forest Nature Reserve”
Claim · model-written summary
Germinated seeds in the soil bank were 0.20 seeds m-2 fewer than in seed rain.
Verbatim
e0“Compared with the seed rain,the quantities of the perfect and geminated seed were less 2.15 seeds m-2 and 0.20 seeds m-2 respectively”
e1“a C.chungii forest in Minqing C.chungii Forest Nature Reserve”
Claim · model-written summary
Seed survival rate was 13.51%.
Verbatim
e0“Seed survival rate and the proportion of seed damaged by animals were 13.51% and 45.90%,respectively”
e1“a C.chungii forest in Minqing C.chungii Forest Nature Reserve”
Claim · model-written summary
Animal damage affected 45.90% of seeds.
Verbatim
e0“Seed survival rate and the proportion of seed damaged by animals were 13.51% and 45.90%,respectively”
e1“a C.chungii forest in Minqing C.chungii Forest Nature Reserve”
Claim · model-written summary
The soil seed bank contained seeds of 69 species.
Verbatim
e0“In total,69 species of seeds were recorded in the soil seed bank”
e1“a C.chungii forest in Minqing C.chungii Forest Nature Reserve”
Claim · model-written summary
Germinable seeds had very low density and were mostly buried at 2~5 cm.
Verbatim
e0“with a very low density of germinable seeds and most of them were buried in 2~5 cm in soil”
e1“a C.chungii forest in Minqing C.chungii Forest Nature Reserve”
Claim · model-written summary
Seedling density was very low in the natural forest.
Verbatim
e0“Seedling density of C.chungii was very low in the nature forest”
e1“a C.chungii forest in Minqing C.chungii Forest Nature Reserve”
Claim · model-written summary
Seed characteristics and habitat were closely related to low seedling density.
- Taxon
- C.chungiie1
- Outcome
- Seedling densitye0
- Direction
- closely relatede0
- Qualifier
- seed characteristics and habitate0
Not reportedSetting
Verbatim
e0“Seedling density of C.chungii was very low in the nature forest,which was closely related to the seed characteristics and habitat”
e1“a C.chungii forest in Minqing C.chungii Forest Nature Reserve”
Claim · model-written summary
Animal damage, decay and abortion hinder long-term seed persistence and natural regeneration.
Verbatim
e0“Due to the animal invasion,rotten,abortion,and so on,it's difficult for C.chungii mature seed to long-term preserve in the soil,and the natural regeneration of C.chungii forest was blocked seriously”
e1“a C.chungii forest in Minqing C.chungii Forest Nature Reserve”