In this paper,different stands in Dongjiang Lake Reservoir area of Zixing were selected as the research objects,and the runoff generation and soil loss characteristics of different stands were studied.The results show...In this paper,different stands in Dongjiang Lake Reservoir area of Zixing were selected as the research objects,and the runoff generation and soil loss characteristics of different stands were studied.The results showed that the annual surface runoff of each model in Zixing was between 43.24 and 50.99 mm,and there was no significant difference in the annual runoff between each stand and its control.There were significant differences in soil erosion modulus among the models,and the number ranged from 127.37 to 165.58 t/(km 2·y).展开更多
In this paper,different stands in Xianzhong Nursery of Pingjiang were selected as the research object to study the runoff generation and soil loss characteristics of different stands.The results showed that the annual...In this paper,different stands in Xianzhong Nursery of Pingjiang were selected as the research object to study the runoff generation and soil loss characteristics of different stands.The results showed that the annual surface runoff of each model in Pingjiang was between 50.50 and 70.38 mm,and the annual surface runoff of each stand decreased with years.There was no significant difference in the annual runoff between each stand,nor between each stand and its control.There were significant differences in soil erosion modulus among the models,and the number ranged from 139.20 to 197.79 t/(km^(2)·y).展开更多
Different forest stands in the Dongjiang Lake Reservoir area of Zixing were selected as the research objects to study the characteristics of runoff generation in different forest stands.The results showed that there w...Different forest stands in the Dongjiang Lake Reservoir area of Zixing were selected as the research objects to study the characteristics of runoff generation in different forest stands.The results showed that there was no significant difference in annual runoff among M3,M1,and M5,and no significant difference between each forest stand and the control.The order was M3(22.75 mm)>M1(21.77 mm)>M5(20.14 mm).Forest vegetation generates less runoff through vegetation restoration compared to the control,indicating that forest vegetation reconstruction and restoration are beneficial for soil and water conservation.展开更多
In this paper,the Pinus massoniana forest in the early stage of succession,the coniferous broad-leaved mixed forest in the middle stage of succession,and the evergreen broad-leaved forest in the late stage of successi...In this paper,the Pinus massoniana forest in the early stage of succession,the coniferous broad-leaved mixed forest in the middle stage of succession,and the evergreen broad-leaved forest in the late stage of succession were studied,and the biomass and its spatial distribution characteristics of the tree layer in different succession stages of the ecosystem were discussed.The results showed that the biomass of the arbor layer was the highest in the evergreen broad-leaved forest,which was 292.51 t/hm2,followed by the coniferous and broad-leaved mixed forest,which was 206.87 t/hm2,and the Pinus massoniana forest,which was 171.76 t/hm^(2).The biomass of trunks accounted for the largest proportion in the total biomass of the arbor layer,which reduced from the Pinus massoniana forest to the evergreen broad-leaved forest.The proportion of the biomass of roots in the total biomass of the arbor layer increased from the Pinus massoniana forest to the evergreen broad-leaved forest.The biomass of the diameter class above 20 cm in the Pinus massoniana forest,the coniferous and broad-leaved mixed forest and the evergreen broad-leaved forest accounted for a large proportion of total biomass.展开更多
基金Supported by Science and Technology Plan of Hunan Province(2021SFQ19)Hunan Forestry Science and Technology Plan(OT-S-KTA5,2024YBC15).
文摘In this paper,different stands in Dongjiang Lake Reservoir area of Zixing were selected as the research objects,and the runoff generation and soil loss characteristics of different stands were studied.The results showed that the annual surface runoff of each model in Zixing was between 43.24 and 50.99 mm,and there was no significant difference in the annual runoff between each stand and its control.There were significant differences in soil erosion modulus among the models,and the number ranged from 127.37 to 165.58 t/(km 2·y).
基金Supported by Hunan Forestry Science and Technology Plan(OT-S-KTA5,2024YBC15)Science and Technology Plan of Hunan Province(2021SFQ19).
文摘In this paper,different stands in Xianzhong Nursery of Pingjiang were selected as the research object to study the runoff generation and soil loss characteristics of different stands.The results showed that the annual surface runoff of each model in Pingjiang was between 50.50 and 70.38 mm,and the annual surface runoff of each stand decreased with years.There was no significant difference in the annual runoff between each stand,nor between each stand and its control.There were significant differences in soil erosion modulus among the models,and the number ranged from 139.20 to 197.79 t/(km^(2)·y).
基金Supported by Hunan Province Science and Technology Plan Project(2019SK2336,2019sfq21,2021SFQ19)Hunan Forestry Science and Technology Plan Project(OT-S-KTA5,2024YBC15).
文摘Different forest stands in the Dongjiang Lake Reservoir area of Zixing were selected as the research objects to study the characteristics of runoff generation in different forest stands.The results showed that there was no significant difference in annual runoff among M3,M1,and M5,and no significant difference between each forest stand and the control.The order was M3(22.75 mm)>M1(21.77 mm)>M5(20.14 mm).Forest vegetation generates less runoff through vegetation restoration compared to the control,indicating that forest vegetation reconstruction and restoration are beneficial for soil and water conservation.
基金Sponsored by Forestry Science and Technology Plan of Hunan Province(XLK201925,XLK201806)National Forestry Science and Technology Development Project(KJZXSA2018011)Operational Subsidy Project of National Forestry Science and Technology Innovation Platform(2018-LYPT-DW-064)
文摘In this paper,the Pinus massoniana forest in the early stage of succession,the coniferous broad-leaved mixed forest in the middle stage of succession,and the evergreen broad-leaved forest in the late stage of succession were studied,and the biomass and its spatial distribution characteristics of the tree layer in different succession stages of the ecosystem were discussed.The results showed that the biomass of the arbor layer was the highest in the evergreen broad-leaved forest,which was 292.51 t/hm2,followed by the coniferous and broad-leaved mixed forest,which was 206.87 t/hm2,and the Pinus massoniana forest,which was 171.76 t/hm^(2).The biomass of trunks accounted for the largest proportion in the total biomass of the arbor layer,which reduced from the Pinus massoniana forest to the evergreen broad-leaved forest.The proportion of the biomass of roots in the total biomass of the arbor layer increased from the Pinus massoniana forest to the evergreen broad-leaved forest.The biomass of the diameter class above 20 cm in the Pinus massoniana forest,the coniferous and broad-leaved mixed forest and the evergreen broad-leaved forest accounted for a large proportion of total biomass.
