Trees are significant components of ecosystems built by several widespread species. For instance, Papua forest is known to comprise abiotic and biotic elements. Also, certain plants have grown in popularity to a point where they are discovered almost everywhere. The purpose of this study, therefore, was to investigate tree diversity, distribution, and the importance of conservation. Data were collected in four locations using a total of 24 sample plots spread across Idoor, Karst, Persemaian, and Torembi, where seven, four, seven, and five plots were allocated, respectively. These forests formed a mixed natural plantation comprising 76 species from 35 families. Furthermore, Idoor and Karst generated the highest species diversity and varied significantly compared to Persemaian, while Torembi showed similarities with the other three locations. This condition formed three ecosystem communities across Persemaian, Karst, Idoor, and Torembi. Also, the composition of the dominant species showed variations at the seedling and sapling levels believed to structure the understory, while the pole and tree levels characterized the overstory. The total species status was described as critically endangered (CR) of two species, vulnerable (VU) of six species, least concern (LC) of 28 species, and data deficient (DD) species. Therefore, location management is advised to not only pay significant attention in terms of economic benefits but also ecological, including the provisions for ex-situ and in-situ conservation to support sustainable forest management.
AbstrakAir limbah budidaya udang berjumlah relatif banyak dan mengandung bahan pencemar yang berpotensi mencemari lingkungan. Di sisi lain, air limbah tersebut dapat diolah dan diresirkulasi dalam sistem budidaya udang. Tujuan penelitian ini adalah untuk menyelidiki kemampuan sistem lahan basah buatan-aliran air permukaan (LBB-AAP) yang ditanami dengan rumput vetiver (Chrysopogon zizanioides, L) dalam menghilangkan pencemar (NO Abstract The amount of wastewater shrimp cultivation is relatively/too much, contains a variety of pollutants and potentially pollute the environment. In other side, The wastewater can be treated and also recirculated in shrimp cultivation systems. The purpose of research is to investigate the ability of flow water surface-constructed wetland system (FWS-CWs) that planted vetiver grass (Chrysopogon zizanioides, L) that removes of pollutants (NO
The productivity of mangrove litterfall is the most important part of the transfer of organic materials from mangrove vegetation into the waters and soils. This research was conducted in July-August 2021 in three stations on mangrove ecosystem at Wasti Lake, Manokwari Regency. The purpose of this study was to determine the mangrove vegetation, litterfall production of Sonneratia alba, relation of Diameter at Breast High with litterfall production, and physical chemistry of the environment. The quadrant transect was used to sample mangrove vegetation and the litter trap to measure litter production. The results showed 5 types of mangroves, namely Sonneratia alba, Rhizophora stylosa, Rhizophora apiculata, Bruguiera gymnorrhiza, and Bruguiera sexangua. The highest density values at each station was Sonneratia alba, namely 360 ind/ha, 540 ind/ha and 520 ind/ha with important value indexes are 268.08%, 255.59%, and 247.96%. The total litterfall production of Sonneratia alba during a period of 28 days was 79.19 gr/m². The highest litter contribution components came from leaves (87.6%), twigs (8.1%), and flowers (4.3%). Correlation and regression analysis showed a very strong positive relationship between DBH and litter production. The environmental parameter values for DO ranged from 6.2-8.4 mg/L, water temperature 28.7 – 35.6⁰C, pH ranged from 7.06 – 7.47, salinity 25 – 27.5, substrate pH 6.1 – 6.3, the air temperature is 29-32⁰C, and the humidity is 70-80%.
<p>Mangrove forest ecosystem, has a distinctive characteristics and important ecological functions in coastal areas. This paper describes the system dynamic model of mangrove restoration program at Klawalu Mangrove Park (TWMK) in Sorong Municipality Papua Barat Daya Province. Mangrove vegetation at TWMK is spread and cover two small rivers. TWMK area and its surrounding are about 144.66 ha, which 47.71% from the total area had a very dense vegetation, 24.17% were dense, 16.75% rather dense and about 2.42% had rarely vegetation. Ten primary mangroves are found at TWMK, which Rhizophora apiculate is the dominant species. The mangrove distribution in TWMK is still dense, yet there is still treat of mangrove longing for support economical activities for local people. Thus the system dynamic model will show the extent of mangrove restoration project on carbon stock in TWMK.</p><p>Key Words : Mangrove, Carbon stock, System Dynamic Dynamic Model, TWMK Sorong</p>
Community service activities have been carried out by a team of lecturers from the Postgraduate Program in Aipiri to identify regional potential and human resource potential. The activity was carried out at the village hall which was followed by field visits to both residents' houses and agricultural land, forestry and the sea. Sampling of respondents was carried out randomly by considering the ownership of the resources owned. The results show that there are two existing agricultural conditions, namely 1) Agricultural Conditions at an Altitude > 10 m with green bean plants dominant; 2). The altitude of the place is 6 m above sea level (residential settlement) with flower plants, vegetables and plant sources of carbohydrates, areca nut and betel. The forest area is included in the tropical forest, 75% is natural forest and 25% is artificial forest. Livestock developed by the community in Aipiri are pigs with more males than females. Fisheries activities in Aipiri are still in the form of traditional activities. The fishing grounds for fishermen only reach the waters in front of the village, using rowboats without motors. The people who inhabit Aipiri are grouped into heterogeneous communities because there has been an assimilation of various ethnicities, including the Biak, Serui, MPur, Javanese, Wandamen and Meyah ethnic groups. The social interaction that exists between community members is manifested through government, spiritual, economic, and educational activities. Aipiri is located on the northern coast of Bird's Head which is directly adjacent to the Pacific Ocean. Keywords: Aipiri; Human resources; Potential; Natural resources ABSTRAK Kegiatan pengabdian pada masyarakat telah dilakukan oleh tim dosen Program Pascasarjana di kampung Aipiri untuk mengidentifikasi potensi wilayah dan potensi sumberdaya manusia. Kegiatan dilaksanakan di balai Desa yang dilanjutkan dengan kunjungan lapang baik di rumah-rumah warga maupun lahan pertanian, Kehutanan maupun laut. Pengambilan sampel responden dilakukan secara acak dengan mempertimbangkan kepemilikan sumberdaya yang dimiliki. Hasil kegiatan menunjukkan bahwa terdapat dua kondisi existing pertanian yaitu 1) Kondisi Pertanian pada Ketinggian Tempat > 10 m dengan dominan tanaman kacang hijau; 2). Ketinggian tempat 6 m dpl (pemukiman penduduk) dengan tanaman bunga, sayuran dan tanaman sumber karbohidrat, pinang dan sirih. Kawasan hutan termasuk dalam hutan tropis yaitu 75 % merupakan hutan alam dan 25% merupakan hutan buatan. Ternak yang dikembangkan oleh masyarakat di Kampung Aipiri adalah ternak babi dengan jenis kelamin jantan lebih banyak dari pada betina. Kegiatan perikanan di Desa Aipiri masih berupa kegiatan tradisional. Daerah penangkapan nelayan hanya sampai di perairan depan desa, dengan menggunakan perahu dayung tanpa motor. Masyarakat yang mendiami Kampung Aipiri dikelompokan ke dalam masyarakat heterogen karena sudah terjadi pembauran berbagai etnis antara lain etnis Biak, serui, Mpur, Jawa, Wandamen dan Meyah. Interaksi sosial yang terjalin antar warga masyarakat diwujudkan melalui aktifitas pemerintahan, kerohaniaan, perekonomian, dan pendidikan. Kampung Aipiri berada di pinggiran pantai utara di Kepala Burung yang berbatasan langsung dengan Laut Pasifik. Bagian utara Kepala Burung Papua telah mengkondisikan wilayah pesisir dan perikanan menjadi rentan terhadap dampak ekor dari siklon tropis dan topan yang berasal dari Samudera Pasifik yang berkaitan erat dengan gelombang badai dan hujan deras. Kata kunci: Aipiri; Potensi; Sumberdaya alam; Sumberdaya manusia
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