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TITUT YULISTYARINI
Purwodadi Botanic Garden, Indonesian Institute of Sciences
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Valuing quality of vegetation in recharge area of Seruk Spring, Pesanggrahan Valley, Batu City, East Java TITUT YULISTYARINI; SITI SOFIAH
Biodiversitas Journal of Biological Diversity Vol. 12 No. 4 (2011)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d120408

Abstract

Yulistyarini T, Sofiah S (2011) Valuing quality of vegetation in recharge area of Seruk Spring, Pesanggrahan Valley, Batu City, East Java. Biodiversitas 12: 229-234. A Seruk spring is one of the springs in Batu city which has water debit less than 1 liter per second. Land use changes of Seruk spring recharge area was occurred in 2001. Recharge area of Seruk Spring consists of anthropogenic forest, eucalypts plantation, bamboo forest, pines plantation, horticulture and housing. The aim of this research was to valuing the quality of vegetation which supported ground water recharge in Seruk spring. Quality of vegetation was determined by vegetation structure, diversity, the thickness of litter and C-stock of each land use systems. Forests, eucalypts plantation and bamboo forests had almost same quality of vegetation.
Analysis of epiphytic orchid diversity and its host tree at three gradient of altitudes in Mount Lawu, Java NINA DWI YULIA; SUGENG BUDIHARTA; TITUT YULISTYARINI
Biodiversitas Journal of Biological Diversity Vol. 12 No. 4 (2011)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d120407

Abstract

Yulia ND, Budiharta S, Yulistyarini T (2011) Analysis of epiphytic orchid diversity and its host tree at three gradient of altitudes in Mount Lawu, Java. Biodiversitas 12: 225-228. The aim of this study was to observe epiphytic orchid diversity and their host trees at three different altitudes (1796, 1922 and 2041 m asl.) at southern part of Mount Lawu, District of Magetan, East Java. Line transect of 10 x 100 m was set up and then divided into ten plots (as replicates) of 10 x 10 m. At each plot, species name and number of individual of epiphytic orchids, and species name, number of individual and diameter at breast height (dbh) of host trees were recorded. The result showed that there were 19 species of epiphytic orchid recorded at the study sites. There were significantly different among gradient altitude in number of epiphytic orchid species (F = 3.7; df = (2, 27); P < 0.05). The highest number of species of epiphytic orchid was recorded at the altitude of 1922 m asl. (6.6 species/100 m2) while the highest number of individual was recorded at the altitude of 1796 m asl. (1337.7 individuals/100 m2). The study site at altitude of 1922 m asl. was recognized as the denser and richer in species of host trees (2.3 species/100 m2 and 3.5 individuals/100 m2 respectively). However, the highest basal area of host tree was recorded at the altitude of 2041 m asl. (4558 cm2/100 m2).
Co-Authors NINA DWI YULIA SITI SOFIAH SUGENG BUDIHARTA