Dongtian Park is a forest park in Dongtian Lake Ecological Tourism Resort in Meizhou City,South China.Through investigation and analysis of sample methods of the forest community structure and plant diversity in this ...Dongtian Park is a forest park in Dongtian Lake Ecological Tourism Resort in Meizhou City,South China.Through investigation and analysis of sample methods of the forest community structure and plant diversity in this park,the results showed that there were 181 plant species,belonging to 138 genera in 76 families,including 48 trees,60 shrubs,36 herbs and 37 lianas.The flora is a subtropical evergreen broad-leaved forest with some distinct tropical properties,and evergreen trees accounted for 48.62%of total plant species.The dominant species in the tree layer were Schima superba,Pinus massoniana,Cinnamomum parthenoxylon,etc.,and those in the shrub layer were Bambusa textilis,Aidia cochinchinensis,Rhaphiolepis indica,etc.,and in herb layer were Carex baccans,Adiantum flabellulatum,Cibotium barometz,etc.,and the lianas mainly included Smilax hypoglauca,Callerya dielsiana,Trachelospermum jasminoides,etc.There were few adults of dominant species in the tree layer,S.superba and P.massoniana also lacked seedlings,they would still maintain their dominant position for a quite long period,but Cyclobalanopsis neglecta had sufficient seedling reserves and would be most likely to become a dominant species in future.The community had relatively rich species,many ferns and lianas and complex hierarchy.The evenness,Shannon-Wiener diversity,Pielou uniformity and Simpson index were higher in the shrub layer than in the tree and herb layer,and the Simpson index was the lowest(0.9280)in the herb layer and Shannon-Wiener diversity index was the highest(7.5853)in the liana layer.展开更多
in this paper, 4N-HCLAIA method was adopted to conduct digestive tests in young female and male Dongtian F1 red deer (Cervus elaphus) of rearing seperatefy in growth period and mixed raising in weaning period in Harbi...in this paper, 4N-HCLAIA method was adopted to conduct digestive tests in young female and male Dongtian F1 red deer (Cervus elaphus) of rearing seperatefy in growth period and mixed raising in weaning period in Harbin Specialty Research Institute. Results indicated that digestive rate of crude protein and crude fiber were 95.35% and 73.68% respectively when rational protein content was 26.8% in growth period. Digestive rate was not significantly different between female and male(P>0.05)i During weaning period, When rational crude protein content is 22.06%, digestive rate of crude protein and crude fiber were 93.05% and 63.96%, respectively. The tests suggest that higher rational protein can be effective in accelerating groWth of young Dongtian F1 red deer during growth period and weaning period(before 10 months old).展开更多
基金Supported by Guangdong Provincial Science&Technology Innovation and Rural Revitalization Strategy in 2021(2021A0305)Guangdong Science and Technology Plan Project(2020B121201013)+2 种基金Guangdong Base Hakka Research Institute Bidding Project in 2020(20KYKT09)Characteristic Innovation Project of Guangdong General Universities in 2019(2019KTSCX171)Basic Education Research Project of Jiaying University in 2021(JCJY20211001)。
文摘Dongtian Park is a forest park in Dongtian Lake Ecological Tourism Resort in Meizhou City,South China.Through investigation and analysis of sample methods of the forest community structure and plant diversity in this park,the results showed that there were 181 plant species,belonging to 138 genera in 76 families,including 48 trees,60 shrubs,36 herbs and 37 lianas.The flora is a subtropical evergreen broad-leaved forest with some distinct tropical properties,and evergreen trees accounted for 48.62%of total plant species.The dominant species in the tree layer were Schima superba,Pinus massoniana,Cinnamomum parthenoxylon,etc.,and those in the shrub layer were Bambusa textilis,Aidia cochinchinensis,Rhaphiolepis indica,etc.,and in herb layer were Carex baccans,Adiantum flabellulatum,Cibotium barometz,etc.,and the lianas mainly included Smilax hypoglauca,Callerya dielsiana,Trachelospermum jasminoides,etc.There were few adults of dominant species in the tree layer,S.superba and P.massoniana also lacked seedlings,they would still maintain their dominant position for a quite long period,but Cyclobalanopsis neglecta had sufficient seedling reserves and would be most likely to become a dominant species in future.The community had relatively rich species,many ferns and lianas and complex hierarchy.The evenness,Shannon-Wiener diversity,Pielou uniformity and Simpson index were higher in the shrub layer than in the tree and herb layer,and the Simpson index was the lowest(0.9280)in the herb layer and Shannon-Wiener diversity index was the highest(7.5853)in the liana layer.
文摘in this paper, 4N-HCLAIA method was adopted to conduct digestive tests in young female and male Dongtian F1 red deer (Cervus elaphus) of rearing seperatefy in growth period and mixed raising in weaning period in Harbin Specialty Research Institute. Results indicated that digestive rate of crude protein and crude fiber were 95.35% and 73.68% respectively when rational protein content was 26.8% in growth period. Digestive rate was not significantly different between female and male(P>0.05)i During weaning period, When rational crude protein content is 22.06%, digestive rate of crude protein and crude fiber were 93.05% and 63.96%, respectively. The tests suggest that higher rational protein can be effective in accelerating groWth of young Dongtian F1 red deer during growth period and weaning period(before 10 months old).
