The demand for raw bamboo materials become sluggish in recent years, consequently, the untouched bamboo forests keep increasing in Japan, which make the sustainable use of bamboo resources becoming an important issue. In order to consider the future revitalization of bamboo industry in Japan, we conducted fundamental research by means of questionnaire survey to investigate enterprises that are processing and selling bamboo products in Kagoshima Prefecture. One Survey conducted in September 2018, on total 45 enterprises, collection rate 64.4%. The questionnaire covered the current operation state of company, bamboo resources utilization and products distribution. We examined the changes and regional characteristics of bamboo industry. The results indicated that 1) The number of enterprises especially the traditional craft-enterprises decreased significantly from 1974 to 2018, the aging of craftsman and increasing of import may the main causes, 2) The item composition of bamboo products has also changed, 3) Many enterprises sustain through newly designed products and cultivation of sales channels. It is considered that the number of traditional enterprises may keep decreasing in the future. For the preservation of bamboo industry in Kagoshima, consequently, it is necessary to securing the bamboo forest which can produce high quality bamboo and Inheriting traditional bamboo products processing technology or wisdom. It also considered important to understand the trends of productions and distribution of bamboo products in China.
Cikapundung is a river connecting wildlife habitat in two open green space areas; there are Tahura Djuanda and Bandung Zoo. Now, these habitats are fragmented due to intervention by urban activities in the Cikapundung River boundary. One of the proposed solutions is to develop a wildlife corridor along the Cikapundung River. The purpose of this study is to identify the landcover of the Cikapundung River, analyze the potential area which can be developed into a wildlife corridor, designing the landscape of the corridor tailored to the needs of the wildlife, and comparing the condition of the Cikapundung River boundary with Kamo River in Kyoto, Japan. Primary data is landcover of Cikapundung River boundary obtained through on-screen digitizing from satellite imagery using ArcMap. Secondary data are the biodiversity list in Cikapundung River riparian area and its ecological description. Cikapundung River border has several land cover types; the highest percentage of the landcover is tree canopy 62.2%, followed by buildings 31.0%. As a result of the comparison Cikapundung River has a more significant vegetation species; however, Kamo River has a more significant number of wildlife species. In the design planning, 14 vegetation species have been selected according to 26 target wildlife species' needs.
The purpose of this study was to clarify the status and problems of the management and stand structure of the Moso bamboo forests in Kagoshima Prefecture. We conducted an interview survey with 2 bamboo forest managers and investigated the stand structures in their bamboo forests, which are located in Aira City and Satsuma Town. It was revealed that density control, fertilization, and mowing in the bamboo forests are carried out regularly. As the result of this management, the stand structure of bamboo forests was revealed as: average culm density 3,917 / ha, average culm diameter at breast height 12.0 cm, 30.6% of 1-2 years culm; the culm stand was close to regular distribution. However, due to the sluggish demand for bamboo products and the aging of forest labour, the production of bamboo raw materials, especially bamboo shoots, has decreased significantly compared to 10 years ago, which was also considered to be connected with the increase in the density of bamboo culm in the bamboo forests. We concluded from these results that it is necessary to organize and record the information and methods related to management and production accumulated in the long term of bamboo forest management to ensure the sustainability of production, especially if management passes to a new entity in the future. Developing and introducing forestry machines was also expected to be an effective way to save labor costs in a bamboo forest connected with its relative low culm density and regular culm distribution.
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