Starting from reviewing the current development of botanic gardens in China,the shortcomings of current research on botanical gardens in China are summarized:the research and construction concepts of the botanical gar...Starting from reviewing the current development of botanic gardens in China,the shortcomings of current research on botanical gardens in China are summarized:the research and construction concepts of the botanical gardens lack professional characteristics;the education and science popularization system is extensive;and the investment and construction model and operation and management method are relatively rigid.Through combing the development history of The Morton Arboretum and introducing its construction features,such as the long-term garden-establishing idea with a high starting point,continuously building and improving for a long time to actively adapt to changes in social needs,a refi ned education and science popularization system for various groups,and a strong self-hematopoietic function,the successful construction experience of The Morton Arboretum is elaborated and the enlightenment from The Morton Arboretum to the construction of botanic gardens China are put forward,so as to provide a reference for the construction and development of botanic gardens in China in the new period.展开更多
The Dipterocarpaceae family is famous for timber productions in Southeast Asia. The Shuangxi tropical arboretum in Taiwan introduced some dipterocarp species in 1935. However, the changes in abundance and regeneration...The Dipterocarpaceae family is famous for timber productions in Southeast Asia. The Shuangxi tropical arboretum in Taiwan introduced some dipterocarp species in 1935. However, the changes in abundance and regeneration of each dipterocarp species are unknown. This study aimed to investigate their diameters patterns and regeneration ability over a long period. The results showed that only four dipterocarp species were survived in this arboretum. An individual plant of Dipterocarpus gracilis Blume had a diameter of 5.7 cm. A young seedling was 90 cm in height, and some fruits germinated directly on the ground. A few fruits of Dipterocarpus grandiflorus (Blanco) Blanco were collected;however, and no seedlings have been found thus far, and its annual growth rate was 2.82% as the fastest growth speed. The annual growth rate of Rubroshorea polysperma (Blanco) P. S. Ashton & J. Heck was 2.32%, which is the second growth speed among the different species. Moreover, the abundance of R. polysperma increased as the fruits germinated. In particular, an uneven-aged forest of R. polysperma was established near the southwest area of the No. 2225 nature conservation protection forest, and an individual with a 100 cm DBH was also found. The fruits of Rubroshorea palosapis (Blanco) P. S. Ashton & J. Heck. could not be collected, but a young seedling appeared, with a height of approximately 150 cm. Therefore, Taiwan should be considered as the new distribution site for the Dipterocarpaceae family, all four dipterocarp species can grow in this area and need to be protected carefully.展开更多
土壤是茶树生存的基本条件,它与茶树生长发育和茶叶品质形成关系十分密切.以现代茶园（或小茶林）土壤和茶叶为对照,对云南景迈山、布朗山和南糯山古茶园土壤（0-20 c m ） 的p H 值、阳离子交换量（C E C ）、有机质（S O M ）、氮磷钾...土壤是茶树生存的基本条件,它与茶树生长发育和茶叶品质形成关系十分密切.以现代茶园（或小茶林）土壤和茶叶为对照,对云南景迈山、布朗山和南糯山古茶园土壤（0-20 c m ） 的p H 值、阳离子交换量（C E C ）、有机质（S O M ）、氮磷钾（N P K ）养分和-芽二叶晒青绿茶的水浸出物、茶多酚、氨基酸、咖啡碱及7 种多酚类单体含量进行了测定分析.结果表明,古茶园土壤含水率与现代茶园相比提高了15.23°%-46.82°%,布朗山和南糯山古茶园的土壤pH 值高于现代茶园（或小茶林）,古茶园土壤的CEC、SOM、总氮（T N ） 、总磷（T P ） 和有效磷（O lsen -P ）含量均显著高于现代茶园（或小茶林）;各茶山古茶园和现代台地茶园（或小茶林）茶叶的水浸出物、氨基酸、茶多酚及多酚类单体物质含量虽然不一致,但古茶树茶叶酚氨比为6.75-12.28,明显低于现代茶园茶叶的9.98-15.25;各茶园茶叶中5 种儿茶素含量的高低依次为：ECG〉EGCG〉EC〉EGC〉C,并且古茶园和现代茶园（或小茶林）茶叶的ECG和EGCG含量差异不显著;此外,仅在古茶树茶叶中检测到没食子酸（G A ） .古茶园栽培模式有利于防止茶园土壤酸化、降低茶园光照强度、提高茶园土壤含水率、促进茶园土壤肥力的可持续利用,有利于茶叶高氨基酸含量和低酚氨比的形成.展开更多
基金Sponsored by Open Foundation of the Key Laboratory of Urban Land Resources Monitoring and Simulation of the Ministry of Land and Resources,China(KF-2019-04-072).
文摘Starting from reviewing the current development of botanic gardens in China,the shortcomings of current research on botanical gardens in China are summarized:the research and construction concepts of the botanical gardens lack professional characteristics;the education and science popularization system is extensive;and the investment and construction model and operation and management method are relatively rigid.Through combing the development history of The Morton Arboretum and introducing its construction features,such as the long-term garden-establishing idea with a high starting point,continuously building and improving for a long time to actively adapt to changes in social needs,a refi ned education and science popularization system for various groups,and a strong self-hematopoietic function,the successful construction experience of The Morton Arboretum is elaborated and the enlightenment from The Morton Arboretum to the construction of botanic gardens China are put forward,so as to provide a reference for the construction and development of botanic gardens in China in the new period.
文摘The Dipterocarpaceae family is famous for timber productions in Southeast Asia. The Shuangxi tropical arboretum in Taiwan introduced some dipterocarp species in 1935. However, the changes in abundance and regeneration of each dipterocarp species are unknown. This study aimed to investigate their diameters patterns and regeneration ability over a long period. The results showed that only four dipterocarp species were survived in this arboretum. An individual plant of Dipterocarpus gracilis Blume had a diameter of 5.7 cm. A young seedling was 90 cm in height, and some fruits germinated directly on the ground. A few fruits of Dipterocarpus grandiflorus (Blanco) Blanco were collected;however, and no seedlings have been found thus far, and its annual growth rate was 2.82% as the fastest growth speed. The annual growth rate of Rubroshorea polysperma (Blanco) P. S. Ashton & J. Heck was 2.32%, which is the second growth speed among the different species. Moreover, the abundance of R. polysperma increased as the fruits germinated. In particular, an uneven-aged forest of R. polysperma was established near the southwest area of the No. 2225 nature conservation protection forest, and an individual with a 100 cm DBH was also found. The fruits of Rubroshorea palosapis (Blanco) P. S. Ashton & J. Heck. could not be collected, but a young seedling appeared, with a height of approximately 150 cm. Therefore, Taiwan should be considered as the new distribution site for the Dipterocarpaceae family, all four dipterocarp species can grow in this area and need to be protected carefully.
文摘土壤是茶树生存的基本条件,它与茶树生长发育和茶叶品质形成关系十分密切.以现代茶园（或小茶林）土壤和茶叶为对照,对云南景迈山、布朗山和南糯山古茶园土壤（0-20 c m ） 的p H 值、阳离子交换量（C E C ）、有机质（S O M ）、氮磷钾（N P K ）养分和-芽二叶晒青绿茶的水浸出物、茶多酚、氨基酸、咖啡碱及7 种多酚类单体含量进行了测定分析.结果表明,古茶园土壤含水率与现代茶园相比提高了15.23°%-46.82°%,布朗山和南糯山古茶园的土壤pH 值高于现代茶园（或小茶林）,古茶园土壤的CEC、SOM、总氮（T N ） 、总磷（T P ） 和有效磷（O lsen -P ）含量均显著高于现代茶园（或小茶林）;各茶山古茶园和现代台地茶园（或小茶林）茶叶的水浸出物、氨基酸、茶多酚及多酚类单体物质含量虽然不一致,但古茶树茶叶酚氨比为6.75-12.28,明显低于现代茶园茶叶的9.98-15.25;各茶园茶叶中5 种儿茶素含量的高低依次为：ECG〉EGCG〉EC〉EGC〉C,并且古茶园和现代茶园（或小茶林）茶叶的ECG和EGCG含量差异不显著;此外,仅在古茶树茶叶中检测到没食子酸（G A ） .古茶园栽培模式有利于防止茶园土壤酸化、降低茶园光照强度、提高茶园土壤含水率、促进茶园土壤肥力的可持续利用,有利于茶叶高氨基酸含量和低酚氨比的形成.
