Yani, Edy
Fakultas Biologi | Universitas Jenderal Soedirman

Published : 6 Documents
Articles

Found 6 Documents
Search

Struktur dan Kemampuan Tumbuh Kembali Hutan Mangrove Cikiperan Cilacap Yani, Edy
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 23, No 3 (2006)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2006.23.3.170

Abstract

Study was conducted to know forest structure and regeneration of mangrove Cikiperan Cilacap. Transect method was used for this study, the data of seedling were collected by quadrat method, sapling and tree were collected by quarter method. The result of this research showed there were 7 species seedling, 11 species sapling and 18 species trees. Dominant species was Rhizophora mucronata, Rhizophora apiculata, Bruguiera gymnorhiza, Avicenia alba, Aegiceros corniculatum, Nypa fruticans, and Ficus retusa. The forest of mangrove regeneration was generally very good. Seven species, however, were recorded in critical condition, i.e. Ceriops tagal, Sonneratia alba, Intsia bijuga, Cynometra ramniflora, Cerbera adolam, Leucaena leucodendrom, and Lumnitzera littorea.
Kajian Perubahan Bioekologi pada Restorasi Ekosistem Mangrove di Segara Anakan Cilacap Ardli, Erwin Riyanto; Widyastuti, Ani; Yani, Edy
Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Vol 32, No 1 (2015)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.mib.2015.32.1.291

Abstract

Mangroves are coastal ecosystems that have a very large role for humans and ecosystems in the vicinity. Mangrove condition in Indonesia, including in Segara Chicks Cilacap experiencing enormous pressure resulting in damage to the mangrove ecosystem. Mangrove restoration is the process of return of mangrove ecosystems of the conditions are broken into previously conditioned as well. The general objective of this study was 1) determine the conditions and amendments BioEkologi mangrove ecosystem restoration in the area of results Segara Chicks. Specific objectives in the study the first year is to determine: 1) the community structure of mangrove ecosystems (vegetation and fauna associations) at a restoration site in the region Segara Chicks, 2) the spatial variation community mangrove ecosystem in the area of restoration, and 3) the condition of the environmental factors that support the mangrove restoration in the region Segara Chicks. The method used was survey method with the technique of sampling cluster random sampling. The data obtained were analyzed multivatiate covering biodiversity analysis, cluster analysis, multi-dimensional sclae (MDS), and Bio-env using PRIMER-E program. The study shows the restoration of mangrove vegetation in the region have relatively low diversity (H <1), and in areas that have not been restored only dominated shrub species (Acanthus and Derris). Environmental factors generally favor mangrove Vegetasia life, and have the same tendency for each restoration location with a level of similarity> 95%.
THE MONITORING OF MANGROVE VEGETATION COMMUNITY STRUCTURE IN SEGARA ANAKAN CILACAP FOR THE PERIOD OF 2009 AND 2015 Koswara, Steni Dwiyanti; Ardli, Erwin Riyanto; Yani, Edy
Scripta Biologica Vol 4, No 2 (2017)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1078.996 KB) | DOI: 10.20884/1.sb.2017.4.2.414

Abstract

Over-exploitation and land-use conversion into aquaculture ponds have damaged the mangrove ecosystem. The extreme environment condition resulting in sedimentation led to the reduction of lagoon area and eventually of mangrove vegetation community. It was, therefore, necessary to conduct sustainable mangrove management through the monitoring system. Changes in the mangrove community were monitored periodically by evaluating width changes and land cover distribution. This study aimed to monitor the structure of mangrove community and changes occurring for the period of 2009 and 2015 by applying the purposive sampling method. The samples were mangrove vegetation community at several different locations. The samples were taken from nine stations with three replicates. There were 14 species of mangrove from six families. Mangrove trees were mostly found in the western area, while mangrove sapling and seedling mostly found in the east. Most of the stations showed a moderate level of diversity index and good productivity except station four. Mangrove forest in Segara Anakan had significant changes from 2009 up to 2015 due to the reduction of mangrove diversity.
ANALISIS VEGETASI KAWASAN KARST GOMBONG SELATAN KEBUMEN JAWA TENGAH Suhendar, Arfiani Salam; Yani, Edy; Widodo, Pudji
Scripta Biologica Vol 5, No 1 (2018)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (771.8 KB) | DOI: 10.20884/1.sb.2018.5.1.639

Abstract

Karst area is a well-developed porosity landscape with a specific condition as a result of soluble rock development through a process of karstification. The karst soil has low nutrients, but high calcium and magnesium content. Due to its unique environmental characteristics, karst vegetation differs from other areas. This study aimed to determine the community structure and species composition of vegetation in the karst area of Gombong Selatan and to compare the environmental factors affecting the plant of the karst area. This study was conducted in the border of Watukelir and Pakuran Villages. The method was a survey with sampling quadrat sizes used of 10 x 10 m for trees, 5 x 5 m for saplings, and 2 x 2 m for understorey vegetation. The variables observed were plant species and number of trees, saplings, and understorey. The environmental factors measured were air temperature, humidity, soil pH, and soil moisture. Data were analyzed using Importance Value Index (IVI), Shannon-Wienner Diversity Index (H’), Evenness Index (E), and Similarity Index (IS). The results showed there were 22 species of understoreys, five species of saplings, and seven species of trees. The understoreys were found dominated by Axonopus compressus dan Cyperus rotundus, in the other category, Tectona grandis and Albizia chinensis were dominated saplings and trees. Humidity and soil moisture were suggested the important environmental factors for plant diversity in karst area of Gombong Selatan
ANALISIS BIOMASA DAN CADANGAN KARBON PADA BERBAGAI UMUR TEGAKAN DAMAR (Agathis dammara (Lamb.) Rich.) DI KPH BANYUMAS TIMUR Uthbah, Zinatul; Sudiana, Eming; Yani, Edy
Scripta Biologica Vol 4, No 2 (2017)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (845.798 KB) | DOI: 10.20884/1.sb.2017.4.2.404

Abstract

Increased carbon dioxide in the atmosphere causes global climate change seriously. Forests serve as an important asset that can absorb and store carbon in the form of biomass. One type of potential forest as a carbon sink is forests resin. The amount of carbon stored by standing very dynamic and varies according to the age of its standing. Therefore, studies will be needed to determine the effect of age on biomass and carbon stocks stands resin, determine the relationship between age and standing biomass and carbon stocks resin, and knowing the optimum resin stand age in storing biomass and carbon stocks. This research was conducted at the stands of resin RPH Karang Gandul, KPH Banyumas Timur for four weeks in May 2016. The method used is a survey with a sampling technique using cluster random sampling. Stands resin used in the study were classified into five age groups with 5 replicates. Data were analyzed using ANOVA with an error rate of 5% and continued with LSD for further test results were significant and regression analysis to determine the relationship of age with biomass and carbon stocks stands resin. The results showed that the age effect on biomass and carbon stocks stands resin, the relationship formed between the age of stand with biomass and carbon stocks are quadratic, and age optimum in storing biomass and carbon stocks is 35 years.
STRUKTUR DAN VEGETASI TUMBUHAN BAWAH PADA TEGAKAN PINUS DI RPH KALIRAJUT DAN RPH BATURRADEN BANYUMAS Destaranti, Nadi; Sulistyani, Sulistyani; Yani, Edy
Scripta Biologica Vol 4, No 3 (2017)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (451.041 KB) | DOI: 10.20884/1.sb.2017.4.3.407

Abstract

A study on the undergrowth vegetation within the pine woods (Pinus merkusii) stands conducted in RPH Kalirajut and RPH Baturraden. This study aimed to find out the composition of the shrubs of the pine woods stands on those two sites with different altitude and to figure out the similarity of the herbs of the pine woods stands on those two locations with the different height. This study applied quadrat sampling technique, using 30 units of 2 x 2 m quadrats divided into ten sub–transects along the main transect. We measured environmental factors including elevation, temperature, light intensity, and pH of the soil. We found undergrowth vegetation in RPH Kalirajut comprised of 32 species belonging to 20 families, dominated by Ottochloa nodosa, Oplismenus compositus, and Cynodon dactylon. On the other site, we found undergrowth vegetation in RPH Baturraden composed of 19 species belonging to 20 families and dominated by Wedelia trilobata, Paspalum conjugatum, and Clidemia hirta. The similarity of the herbs vegetation measured of those two sites was 30.85% or 69.15% different.