scholarly journals Analysis of the Structure and Ecological Function of an Extreme Landscape in a Tropical Region of West Java, Indonesia

Forests ◽  
2022 ◽  
Vol 13 (1) ◽  
pp. 115
Author(s):  
Susanti Withaningsih ◽  
Parikesit Parikesit ◽  
Annas Dwitri Malik ◽  
Muthi’ah Aini Rahmi
Keyword(s):  
Landscape Structure ◽  
Secondary Forest ◽  
Landscape Connectivity ◽  
Ecological Function ◽  
Tropical Region ◽  
Landsat 8 ◽  
Landscape Matrix ◽  
Conservation Areas ◽  
Ecological Functions ◽  
West Java

An extreme landscape is a spatially heterogeneous area with unusual topography that is prone to natural disasters but still exhibits interrelated structures and functions. One of the important functions of an extreme landscape is its ecological function. This study aimed to determine the structure and reveal the ecological functions of an extreme landscape in a tropical region of West Java, with special reference to Rongga Sub-district. The method used was a combination of remote sensing techniques and geographic information systems, which were required to process, analyze, and interpret Landsat 8 OLI/TIRS data. The landscape structure was quantified by landscape metrics, after which an analysis of ecological functions was carried out based on the constituent elements of the landscape. The results showed that the landscape structure of Rongga Sub-district consists of various elements of agroforestry land, open fields, settlements, shrubs, plantations, and rainfed and irrigated rice fields. Additionally, secondary forest land acted as a landscape matrix where rivers crossed as natural corridors. The amount of each element varied; agroforestry land had the highest value, indicating that this element showed a high degree of human intervention. Each patch was adjacent to other patch types, and the landscape diversity was quite high. The extreme topography of Rongga Sub-district supports the landscape connectivity and consequently the presence of wild animals in this area. Therefore, Rongga Sub-district has an essential ecological function as a refuge for protected animals living in non-conservation areas.

scholarly journals Landscape structure in the northern coast of Paraná state, a hotspot for the brazilian Atlantic Forest conservation

2012 ◽  
Vol 36 (5) ◽  
pp. 961-970 ◽  
Author(s):  
Érico Emed Kauano ◽  
José Marcelo Domingues Torezan ◽  
Fernanda Cristina Gil Cardoso ◽  
Márcia Cristina Mendes Marques
Keyword(s):  
Atlantic Forest ◽  
Landscape Structure ◽  
Secondary Forest ◽  
Secondary Forests ◽  
Northern Coast ◽  
Brazilian Atlantic Forest ◽  
Landscape Matrix ◽  
Serra Do Mar ◽  
Ombrophilous Forest ◽  
Dense Ombrophilous Forest

The "Serra do Mar" region comprises the largest remnant of the Brazilian Atlantic Forest. The coast of the Paraná State is part of the core area of the "Serra do Mar" corridor and where actions for biodiversity conservation must be planned. In this study we aimed at characterizing the landscape structure in the APA-Guaraqueçaba, the largest protected area in this region, in order to assist environmental policies of this region. Based on a supervised classification of a mosaic of LANDSAT-5-TM satellite images (from March 2009), we developed a map (1:75,000 scale) with seven classes of land use and land cover and analyzed the relative quantities of forests and modified areas in slopes and lowlands. The APA-Guaraqueçaba is comprised mainly by the Dense Ombrophilous Forest (68.6% of total area) and secondary forests (9.1%), indicating a forested landscape matrix; anthropogenic and bare soil areas (0.8%) and the Pasture/Grasslands class (4.2%) were less representative. Slopes were less fragmented and more preserved (96.3% of Dense Ombrophilous Forest and secondary forest) than lowlands (71.3%), suggesting that restoration initiatives in the lowlands must be stimulated in this region. We concluded that most of the region sustains well-conserved ecosystems, highlighting the importance of Paraná northern coast for the biodiversity maintenance of the Atlantic Forest.

scholarly journals The desain of mangrove conservation area to increase resilience of Cimanuk Delta, Indramayu, West Java to climate change

2015 ◽  
Vol 5 (2) ◽  
pp. 63-76
Author(s):  
HADIANA HADIANA ◽  
AGUSTINUS M. SAMOSIR
Keyword(s):  
Climate Change ◽  
Conservation Planning ◽  
Coastal Area ◽  
Conservation Areas ◽  
West Java ◽  
Conservation Area ◽  
Core Zone ◽  
Alternative Plan ◽  
Management Effort ◽  
Mangrove Conservation

Hadiana, Samosir AM. 2015. The design of mangrove conservation area to increase resilience of Cimanuk Delta, Indramayu, West Java to climate change. Bonorowo Wetlands 5: 63-76. Indramayu is one of coastal area in North Java many encountered caused impact by climate change, this seemed from storm intensity, abrasion and flood that happened more frequent. One of the management effort to reduce these impacts is the conservation. Conservation planning integrated into one form designation of conservation areas. This research aim was to determine the variable of coastal resources that are related to protection and gave the alternative plan of conservation area as an effort to brought back Cimanuk Delta condition toward climate change. The plan in scenario one generated core zone about 97,27 km2, limited utilization zone 75,35 km², sustainable fisheries zone 149,30 km², and others zone 116,07 km² of total aquatic study in Coastal of Indramayu (Delta Cimanuk) that have a total area about 437,9890 km². The plan in scenario two generated core zone about 102,07 km², and the plan in scenario three generated core zone about 120,45 km. Overall, the location that always selected as a conservation area located around Cemara, Pabean Ilir, Cantigi and Pagirikan Coastal area.

Landscape Connectivity

2019 ◽  
pp. 206-238
Author(s):  
Kimberly A. With
Keyword(s):  
Invasive Species ◽  
Gene Flow ◽  
Landscape Pattern ◽  
Landscape Structure ◽  
Pattern Analysis ◽  
Landscape Connectivity ◽  
Ecological Processes ◽  
Independent Variable ◽  
Ecological Flows

Landscape connectivity is essential for maintaining ecological flows across landscapes. Processes as diverse as dispersal; gene flow; the flow of water, materials and nutrients; the spread of invasive species, diseases, or pests; or the spread of disturbances like fire, are all potentially influenced by the connectivity of different land covers and land uses. Landscape connectivity can be defined structurally as well as functionally. Landscape connectivity may therefore be treated as either an independent variable, in terms of studying how landscape connectivity influences ecological flows, or as a dependent variable in which landscape connectivity emerges as a consequence of how species or ecological flows interact with landscape structure. This chapter thus explores the different scales and ways in which connectivity can be measured and studied, providing a bridge between the previous chapter on landscape pattern analysis and the chapters that follow on the effects of landscape pattern on ecological processes.

Construction of Ecological Function Evaluation Index System for Linghe Estuarine Wetland Natural Reserve

2014 ◽  
Vol 513-517 ◽  
pp. 4269-4272
Author(s):  
Qian Cheng ◽  
Lin Fei Zhou ◽  
Yu Long Zhang ◽  
Tie Liang Wang
Keyword(s):  
Structural Characteristics ◽  
Complex Function ◽  
Ecological Function ◽  
Evaluation Index System ◽  
Function Evaluation ◽  
Ahp Method ◽  
Ecological Functions ◽  
Estuarine Wetland ◽  
Natural Reserve ◽  
Management And Conservation

Based on the structural characteristics of the wetland ecological environment, we analyzed and evaluated the ecological functions of Linghe estuarine wetland quantitatively with methods of AHP and index judgment. The results showed, functions of regulating floods, biological products and soil conservation played relatively important role. The complex function of Ling estuarine wetland is in common level; the ecosystem is relatively stable to play fundamental ecological functions. AHP method made the ecological function indicators that are difficult to quantify more simple and intuitive. The article developed a new way of planning, management and conservation of the wetland with AHP method in sustainable development of Linghe Estuarine wetland.

scholarly journals Identification and analysis of shoreline changes over fishermen settlement along the coast of sungaibuntu and cemarajaya village, Karawang Regency, West Java

2021 ◽  
Vol 72 (1) ◽  
pp. 95-106
Author(s):  
Ikhsani A. ◽  
Sudjono P. ◽  
Firdayati M. ◽  
Marselina M.
Keyword(s):  
Environmental Sustainability ◽  
Mean Value ◽  
Tidal Range ◽  
Significant Feature ◽  
Landsat 8 ◽  
Economic Activities ◽  
Negative Effects ◽  
West Java ◽  
Shoreline Changes ◽  
Landsat 7

Shoreline changes, that occur along the coast, gives negative effects to the environment and also social-economic activities on the fishermen’s livelihood. Study about shoreline changes, its trends, and its causes are important for the development of economic and sanitation vulnerability assessment on fishermen community caused by shoreline changes. Thus, environmental sustainability criteria within the local scale and specific to fishermen community takes into account and the implementation of the instrument become more appropriate to reduce the undesirable effects. This research aims to identifying and analysing shoreline changes trend and its factors over the fishermen settlement area along the coast of Sungaibuntu and Cemarajaya village, Karawang Regency, West Java. Data used in this study are Landsat-7 1999, 2002, 2007, and 2012 as well as Landsat-8 2017. To enhance Landsat-7 images, band 2-4-5 are used, meanwhile Landsat-8 employs band 3-5-6. Later, the shoreline was extracted by applying band rationing techniques, Band2/Band5 for Landsat-7 and Band3/Band6 for Landsat-8. The rate of shoreline changes along the coast of Sungaibuntu is -0.15 m/yr and -2.89 m/yr along Cemarajaya. The periodic phenomena that affect shoreline changes consist of tidal range with a mean value of 0.796 m, significant wave height (Hs) of 0 - 2.9 m with the dominant direction heading to the southeast, and also sea level rise (SLR). Besides, there is an anthropogenic factor of land use and land cover changes as the significant feature shown by the managed system of ponds, cropland, farmland, paddy field, along with the settlement. As for the instrument development of economic and sanitation vulnerability on fishermen community, it is important to take shoreline changes rate and its causes into account and consider it as vulnerability criteria.

scholarly journals Analisis Heat Island pada Perkebunan Kelapa Sawit: Studi Kasus di Kabupaten Kayong Utara, Kalimantan Barat

2020 ◽  
Vol 8 (2) ◽  
pp. 106-115
Author(s):  
Nurul Ihsan Fawzi ◽  
Marindah Yulia Iswari
Keyword(s):  
Remote Sensing ◽  
Surface Temperature ◽  
Palm Oil ◽  
Secondary Forest ◽  
Remote Sensing Data ◽  
Primary Forest ◽  
Landsat 8 ◽  
Heat Island ◽  
Local Climate ◽  
Island Effect

Between 2000 – 2017, 3.06 million hectares of primary forest in Kalimantan have been converted into palm oil plantation. This change impacts local climate changes. This study aims is to analyze the heat island in palm oil plantation. The analytical method used surface temperature estimation through remote sensing and zonal statistics. The remote sensing data that are used is Landsat 8 images acquired on 15 July 2018 and 3 August 2019. From this research, we found that young palm oil plantations have an average IHI value of 2.1 ± 1.7oC in 2018 and 1.7 ± 1.4oC in 2019. The IHI value is close to the heat island in a built-up area. IHI for mature palm oil plantation (11-12 years) created a cool island with an intensity close to secondary forest. The decreasing value of IHI for 2018 and 2019 in palm oil plantations is due to the growth of palm oil trees, which decreases surface temperature. The implication of this research is to know heat island effect due to deforestation or land cover changes, especially change into palm oil plantations.

scholarly journals OPTIMALISASI DATA LANDSAT 8 UNTUK PEMETAAN DAERAH RAWAN BANJIR DENGAN NDVI dan NDWI ( Studi Kasus : Kota Bengkulu )

2020 ◽  
Vol 6 (1) ◽  
pp. 57-65
Author(s):  
Aan Erlansari ◽  
Boko Susilo ◽  
Franky Hernoza
Keyword(s):  
Yellow Pigment ◽  
Tropical Region ◽  
Landsat 8 ◽  
Blue Colour ◽  
Dry Land ◽  
Sparse Vegetation ◽  
Green Colour ◽  
Brown Colour ◽  
Using Data ◽  
Dark Green

Indonesia is classified as a tropical region with rainfall data ranging from medium to high. This has become one of the causes of frequent flooding. Bengkulu which is one of the provinces in Indonesia, has a topography that is at an elevation of 0-16 meters above sea level with 70% flat topography and 30% small hilly. Swamp area dominates the lowlands so that it cannot optimally absorb water into the soil. This study identifies areas with potential flooding using data obtained through Landsat 8 and processes them using the NDVI and NDWI methods. NDVI detected and classified a map into five classifications; dry land with red colour, scarce vegetation with yellow pigment, sparse vegetation with soft green colour, solid vegetation with a dark green colour. Meanwhile, NDWI classified into 3 categories; medium wetness with a brown colour, dry land with beige colour and high wet area with a blue colour.

scholarly journals Tree Communities and Aboveground Biomass in the Submontane Zone of Ketambe Resort, Mount Leuser National Park, Aceh

Elkawnie ◽  
2020 ◽  
Vol 6 (2) ◽  
pp. 237
Author(s):  
Taufikurrahman Nasution ◽  
Muhammad Efendi
Keyword(s):  
Aboveground Biomass ◽  
National Park ◽  
Secondary Forest ◽  
Cultivated Plants ◽  
Conservation Areas ◽  
Tree Structures ◽  
Large Trees ◽  
Tree Communities ◽  
Shorea Platyclados ◽  
Average Wood

Abstract: Mount Leuser National Park is one of the largest conservation areas and plays important ecological and economic functions. To support forest management, it is important to gain current vegetation data. The sampling method of a 0.1 hectare plot was carried out on two sampling sites in the submontane zone of Ketambe Resort, Mount Leuser National Park, Aceh. The diversity of trees was not significantly different, while species composition was different. Site one was dominated by Syzygium spp. and Shorea platyclados, while site two was dominated by Altingia excelsa and Bridelia glauca. Lauraceae, Myrtaceae, and Dipterocarpace families dominated in both sites. Tree structures formed three strata and showed a good capacity for forest regeneration. The aboveground biomass of site one was higher than site two due to the presence of more large trees. Pioneer species, cultivated plants, a low average wood density, and low aboveground biomass indicated secondary forest characteristics in both sites. Abstrak: Taman Nasional Gunung Leuser merupakan salah satu kawasan konservasi yang terluas dan memiliki fungsi ekologi dan ekonomi yang penting. Data vegetasi terkini penting didapatkan untuk mendukung pengelolaan hutan. Metode sampling dengan plot 0.1 hektar dilakukan di dua lokasi pada zona submontana Resort Ketambe, Taman Nasional Gunung Leuser, Aceh. Keanekaragaman jenis pohon tidak berbeda secara nyata sementara komposisi jenis berbeda. Lokasi satu didominasi oleh Syzygium spp. dan Shorea platyclados, sementara lokasi dua didominasi oleh Altingia excelsa dan Bridelia glauca. Suku Lauraceae, Myrtaceae dan Dipterocarpace mendominasi pada kedua lokasi. Struktur pohon membentuk tiga strata dan menunjukkan kemampuan regenerasi hutan yang baik. Biomassa pohon di atas permukaan pada lokasi satu lebih tinggi dibandingkan lokasi dua karena lebih banyaknya pohon berukuran besar. Jenis pionir, tanaman budidaya, rata-rata berat jenis kayu dan biomassa di atas permukaan yang rendah mengindikasikan karakteristik hutan sekunder pada kedua lokasi.

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