Wonogiri Regency is one of the regencies in Central Java that suffer drought every year. This drought was triggered by the number of springs that began to "disappear" and "die". For this reason, it is necessary to conserve springs as a way to keep the springs maintained all the time. Springs conservation activities can be carried out in two ways, namely civil engineering and vegetation. Springs conservation is needed to maintain and manage the existence of springs. Springs conservation activities can begin with the analysis of plant vegetation around springs at various heights, which are related to the density, frequency and importance of species. The existence of growing around the spring can be used as a protector and regulator of the water system. This study aims to determine the types of plants around springs in the highlands and lowlands. Activities carried out by recording all types of plants around the spring in the core zone in Wonogiri district, Central Java Province. The research method used is a line-striped method, with a 20m x 20m plot used to collect data on tree level, 10m x 10m plot size to collect data on pole level, 5m x 5m plot types for seedling / sapling data collection. Data analysis using the method of vegetation analysis is calculating the relative frequency, relative density, relative dominance and Important Value Index (IVI). The results showed that the species of trees around the spring located in the highlands and lowlands with an important value of more than 10% consisted of 15 species. The results of the Important Value Index analysis show that the species that has the highest IVI for the tree level is Beringin (Ficus benjamina), for the pole level is Bulu (Ficus annulata), and to the seedlings are Jambu Air (Syzygium aqueum).
This research was aimed to find out information on the growth and physical quality of Shorea leprosula Miq. seedlings propagated from shoot cutting at three different levels of age. The research was carried out through growth observation and physical quality assessment at 11-, 12-, and 14-month-old after acclimatization (MAA). The observation and assessment were done to ten seedling samples of each age level which were selected through a simple randomized sampling method. The results showed that height of 14 MAA Shorea leprosula Miq. seedlings was significantly different from other age levels (p < 0.05). On the other hand, the physical quality of seedlings was not different between age levels of seedlings. At seedling age of 11 MAA (S 1), the seedling was ready for planting with height of 32.6 cm, sturdiness value of 10.79, shoot/root ratio of 2.58, and seedling quality index of 0.28.
Abstrak. Frianto D, Novriyanti E. 2016. Pola penyebaran dan potensi kerapatan Taxus sumatrana di Gunung Tujuh, Kabupaten Kerinci,. Taxus sumatrana termasuk ke dalam genus Taxus, famili Taxaceae, dan subdivisi Gymnospermae. Taxus merupakan tanaman sumber paclitaxel (taxol) yang bersifat antikanker. Studi ini bertujuan untuk mengetahui pola penyebaran dan potensi kerapatan Taxus sumatrana di Gunung Tujuh, Kabupaten Kerinci, Provinsi Jambi. Penelitian dilaksanakan dengan metode jalur dan garis berpetak. Pengamatan dilakukan pada ketinggian 1.690-2.120 m dpl. Data pola penyebaran dianalisis dengan rumus indeks Morisita, sedangkan untuk mengetahui pola penyebaran secara berkelompok atau tidak dilakukan dengan distribusi Chi-square. Faktor abiotik yang diamati meliputi suhu tanah, pH tanah, dan intensitas cahaya. Hasil pengamatan menunjukkan bahwa pola penyebaran Taxus sumatrana di Gunung Tujuh berdasarkan indeks Morisita terjadi secara berkelompok (1,21). Sementara itu, hasil uji lanjut distribusi Chi-square (155,49) menunjukkan pola penyebaran yang tidak berbeda nyata dengan pola penyebaran berkelompok. Pada eksplorasi ini, Taxus sering ditemukan di daerah-daerah tebing tepi sungai. Potensi kerapatan Taxus sumatrana sekitar 10,19 pohon/ha. Faktor lingkungan yang diamati meliputi suhu tanah yaitu berkisar antara 20,9-23,5 o C, pH tanah sekitar 6,8, dan intensitas cahaya berkisar antara 257-639 Lux. Taxus is a source of paclitaxel (taxol), an anticancer substance. This study aimed to examine the distribution pattern and the density potential of T. sumatrana at Mount Tujuh, Kerinci District, Jambi Province. The research was conducted with a combination of transect and line compartment method. The observation was conducted at an elevation of 1.690-2.120 m asl. The collected data of distribution pattern were analyzed with Morisita Index. Further, the data was analyzed with Chi-square distribution to define grouped or ungrouped distribution pattern. Abiotic factors observed included soil temperature, soil pH, and light intensity. The results showed that the distribution pattern of T. sumatrana in Mount Tujuh based on Morisita Index was classified as grouped (1.21). Meanwhile, the results of further analysis of Chi-square distribution (155.49) showed the result that there was no significant difference with a grouped distribution pattern. In this study, Taxus was mostly found at ravine or cliff of river banks. Potential of the density of T. sumatrana was 10.19 trees/ha. The abiotic factors observed included soil temperature ranged between 20.9-23.5 o C, soil pH was about 6.8 and light intensity ranged between 257-639 Lux.Keywords: Mount Tujuh, distribution pattern, density potential, Taxus sumatrana PENDAHULUANTaxus sumatrana termasuk ke dalam famili Taxaceae dan subdivisi Gymnospermae. Di Indonesia, T. sumatrana dikenal dengan nama cemara sumatra. Taxus sumatrana tumbuh pada strata subkanopi di hutan pegunungan. Tempat tumbuh T. sumatrana umumnya terdapat di bagian punggung bukit, lereng-lereng terjal, dan tepian jurang (R...
This research was aimed to find out the planted readiness of merawan (Hopea odorata Roxb.) seedling from KOFFCO system according to age level of seedling. The research was undergoes through growth observation and physical quality assessment that was done to three age levels of Hopea odorata Roxb. Those are five months after planted (5 MAP), seven months after planted (7 MAP), and nine months after planted (9 MAP). The observation and assessment was done to ten seedling samples of each age level which selected through simple randomized sampling method. The result showed that all growth and physical quality parameters of merawan seedling was signicantly influenced (p<0,1) by age level of seedling. Refer to growth and physical quality magnitude, seedling will ready to planted at age nine MOAA with height higher than 20 cm, shoot/root ratio about two and quality seedling index higher than 0,09.
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