A research on mangrove forest at coast Cengkrong in the village of Karanggandu aimed at defining zoning and composition of magrove vegetation. The sampling method consists of 3 zoning. Each zone established 3 plots, consists of 10 m x10 m plot size of trees category, 5 m x 5 m of stake category, and 1 m x 1 m of seedling category to repeat in 3 times. Data analysis of mangrove vegetation employed Improtance Value Indeks (IVI). The research results found 12 mangrove species namely Avicennia alba, Bruguiera gymnorrhiza, Bruguiera parviflora, Ceriops decandra, Ceriops tagal, Lumnitczera racemosa, Rhizophora apiculata, Rhizophora mucronata, Sonneratia alba, Sonneratia caseolaris, Xylocarpus granatum Nypa fruticans. Reffering to the the mangrove zonation indicates the zone I or open zone grows Sonneratia alba and it can be found Rhizophora mucronata, Ceriops decandra with salinity of 6 ppt. Zone II or middle zone grows species of Avicennia alba and it also be found Sonneratia alba, Xylocarpus granatum with salinity of 6 ppt. Zone III or zone that is closer to the landward grows species Xylocarpus granatum and also appears Lumnitzera racemosa,Bruguiera parviflora with salinity of 4 ppt. It showed that the formation of mangrove zonation at Coast Cengkrong is still categorized as less stable, due to rehabilitation since 2002 were done without understanding the type of site suitability and natural factors which causes the fruits drop when the tides of sea water, so that the growth is not stable.

<p>Batujai Reservoir locates in Batujai Village, Praya Barat, Central Lombok, West Nusa Tenggara. It is the primary source of irrigation water supply for agriculture in Central Lombok District with an area of around 3,235 ha. The problem is the bloom of water hyacinth weed (<em>Eichhornia</em> <em>crassipes</em>), which can cause reservoir water loss through evapotranspiration, affecting the amount of water reservoir available for the dry season. The objective was to identify the area of cover and estimate water loss through water hyacinth evapotranspiration for the period 2013 – 2017. This study used a descriptive method by analysis of secondary data which were meteorological data and landsat-8 satellite imagery. Evapotranspiration analyzes use CROPWAT 8.0, monitoring water hyacinth cover using landsat–8 satellite imagery processed using ENVI 5.3 and ArcGIS 10.4 software. The results show that the spatial distribution of water hyacinth can be detected and mapped accurately with an overall classification accuracy of 84.11% – 97.04% using Landsat 8 data, with a kappa coefficient of 0.80 – 0.96. The area of water hyacinth cover ranges from 38,400 m² – 2,158,500 m², with a cover area of more than 20%, causing water loss above 8,000 m³ day^-1, which occurred in April 2013, April 2015, April 2016, February 2015, May 2014, May 2016 and July 2016, in those months it was seen that the amount of water loss was greater. Therefore, it is needed to suppress the growth of water hyacinth, in maintaining reservoir water storage capacity to support a systems of sustainable agriculture.</p>

<p><em>Desa Wisata Kaligono </em>(Dewi Kano) is one of the tourist village located in the west of Menoreh hill. There are some agriculture potentials, such as: mangosteen, durian, and Etawa goat (PE). The main crops commodity, mangosteen and durian, is not fully developed yet. It requires planning in developing its potentials. The Shift of Economic Structure from agricultural sector to industry sector which is happened in these recent ten years has the effect on <em>PDRB</em> of the regency. Kaligesing district is set as an <em>agropolitan</em> development area according to <em>RTRW</em> of the regency; it is strategically settled as a chance to develop tourism of Dewi Kano. This research objectives were: to gain information about villagers perception concerning to the plan of developing an agro-tourism area in Dewi Kano, to find out the impact of agro-tourism, and to formulate the strategy in developing the agro-tourism. Observation, interview, questionnaire, and SWOT analysis were used in formulating the agro-tourism development strategy of Dewi Kano area. The results of the research show that villagers of Dewi Kano are supporting the plan of developing their area as an agro-tourism; this is seen from their perceptions which tend to <em>agree</em>, because they understand that agro-tourism development can give benefits in ecology, economy, social, and management. The strategy which can be applied in developing agro-tourism of Dewi Kano is a <em>progressive strategy</em>; it means, the research location is in a great condition, so it will be well-developed by maximizing the chances.</p><p> </p><p>Abstrak</p><p>Desa Wisata Kaligono (Dewi Kano) adalah salah satu desa wisata di sebelah barat pegunungan Menoreh. Potensi-potensi pertanian yang dimiliki desa Kaligono antara lain buah manggis, durian dan kambing peranakan etawa (PE). Komoditas hasil pertanian manggis dan durian belum digarap secara maksimal sehingga perlu adanya perencanaan dalam pengembangan potensi tersebut. Pergeseran struktur ekonomi dari sektor pertanian ke sektor industri dan jasa selama 10 tahun terakhir mempengaruhi PDRB kabupaten. Kecamatan Kaligesing ditetapkan sebagai kawasan pengembangan agropolitan sesuai dengan RTRW Kabupaten dan isu strategis yang berkembang merupakan sebuah peluang untuk mengembangkan agrowisata di Dewi Kano. Penelitian ini dilakukan untuk mengetahui persepsi masyarakat Dewi Kano terhadap rencana pengembangan sebuah kawasan agrowisata Dewi Kano, mengetahui dampak pengembangan agrowisata dan merumuskan strategi pengembangan agrowisatanya. Metode penelitian melalui observasi, wawancara dan kuisioner dan analisis SWOT digunakan untuk merumuskan strategi pengembangan agrowisata di Dewi Kano. Hasil penelitian menunjukkan bahwa masyarakat Dewi Kano mendukung dalam perencanaan pengembangan daerahnya sebagai kawasan agrowisata dilihat dari persepsi masyarakat yang cenderung setuju dalam upaya tersebut karena dapat memberikan dampak terhadap upaya pembangunan pertanian berkelanjutan dari sudut pandang ekologi, sosial, ekonomi dan pengelolaan. Strategi yang dapat dilakukan dalam pengembangan agrowisata Dewi Kano yaitu strategi progresif, artinya lokasi penelitian dalam kondisi baik dan prima sehingga dapat dikembangkan sebagai sebuah kawasan agrowisata dengan menggunakan peluang yang tersedia untuk meningkatkan kekuatan yang dimiliki.</p>

Noise exposure is often found in the industrial environment that exposed workers at risk for increasing blood pressure. This study aimed at investigating the association between noise level, duration of noise exposure, age, use of earplugs, and body mass index with blood pressure on textile industry workers. An observational study with the cross-sectional design conducted during August to October 2016. The study population was 180 textile industry workers in Surakarta selected by consecutive sampling method. Statistical analysis used was multiple logistic regression. Results showed that variables associated with systolic blood pressure were the use of earplugs (OR=12.7), noise level (OR=7.2), body mass index (OR=5.3), age (OR=4.4) and duration of noise exposure (OR=3.5). Variables associated with diastolic blood pressure were the use of earplugs (OR=6.9), age (OR=6.6), noise level (OR=6.1), body mass index (OR=4.4), and duration of noise exposure (OR=3.1). In clonclusion, the risk factors for blood pressure increased among industrial workers are the use of earplug, noise level, body mass index, age and duration of noise exposure. Key words: Blood pressure, textile industry workers Asosiasi antara Faktor Risiko dan Tekanan Darah pada Pekerja Industri Tekstil AbstrakPaparan kebisingan yang mengekspos pekerja sering ditemukan di lingkungan industri sehingga berisiko terjadi peningkatan tekanan darah. Penelitian ini bertujuan mengetahui hubungan tingkat kebisingan, durasi paparan kebisingan, usia, penggunaan sumbat telinga, dan indeks massa tubuh dengan tekanan darah pada pekerja industri tekstil. Penelitian ini menggunakan jenis observasional dengan desain cross-sectional yang dilakukan pada bulan Agustus-Oktober 2016. Populasi penelitian adalah pekerja industri tekstil di Surakarta. Terpilih 180 orang pekerja dengan menggunakan metode sampling konsekutif. Analisis statistik yang digunakan adalah regresi logistik berganda. Variabel yang berhubungan dengan tekanan darah sistole adalah penggunaan sumbat telinga (OR=12,7), tingkat kebisingan (OR=7,2), indeks massa tubuh (OR=5,3), usia (OR=4,4), dan durasi paparan kebisingan (OR=3,5). Variabel yang terkait dengan tekanan darah diastole adalah penggunaan sumbat telinga (OR=6,9), usia (OR=6,6), tingkat kebisingan (OR=6,1), indeks massa tubuh (OR=4,4), dan durasi paparan kebisingan (OR=3,1). Simpulan, faktor risiko peningkatan tekanan darah di kalangan pekerja industri tekstil adalah penggunaan sumbat telinga, tingkat kebisingan, indeks massa tubuh, usia, dan durasi paparan kebisingan. Kata kunci: Pekerja industri tekstil, tekanan darahCorrespondence: Sumardiyono, S.K

ABSTRAKEkosistem mangrove merupakan suatu interaksi yang terjadi antara tanaman – tanaman mangrove dengan faktor lingkungan perairan mangrove sehingga dapat menyebabkan terjadinya kesuburan perairan dan sebagai tempat mencari makan alami bagi biota – biota perairan. Tujuan penelitian ini adalah untuk mengetahui sebaran klorofil-a, nitrat dan fosfat serta plankton pada ekosistem mangrove yang berguna untuk kelestarian hidup biota – biota perairan Mangrove. Penelitian ini dilaksanakan bulan Oktober – November 2017 di Mangrove Tapak Tugurejo Semarang. Hasil penelitian ini didapatkan kandungan klorofil a rata – rata 0,165 mg/l, kandungan nitrat rata – rata 2,188 mg/l dan kandungan fosfat rata – rata 0,045 mg/l. Kelimpahan fitoplankton ditemukan sebanyak 23 spesies dan zooplankton ditemukan sebanyak 5 spesies. Berdasarkan status indeks trofik perairan Mangrove Tapak Tugurejo Semarang termasuk dalam kategori perairan mesotrofik, yakni unsur hara dan nutrien dalam perairan mangrove kurang tersedia banyak atau sedang dan belum tercemar. Kondisi kesuburan ekosistem mangrove terpantau cukup baik bila dibandingkan dengan kandungan – kandungan unsur hara, klorofil a dan plankton yang melimpah di perairan penelitian, sehingga memungkinkan banyak terdapat kehidupan biota – bioata perairan. Kesimpulan dari penelitian ini adalah kandungan unsur hara (nitrat dan fosfat) dan klorofil a serta plankton diperairan mangrove sangat mempengaruhi kesuburan ekosistem perairan, serta plankton yang mendominasi tempat penelitian ialah dari kelas Baccilariophyceae sebanyak 21 spesies.Kata kunci: Status trofik, Plankton, Ekosistem Mangrove,  Mangrove Tapak Tugurejo Semarang.ABSTRACTMangrove ecosystem is an interaction that occurs between mangrove plants with environmental factors of mangrove waters that can cause the occurrence of water fertility and as a place of natural foraging for aquatic biota. The purpose of this research is to know the distribution of chlorophyll a, nitrate and phosphate and plankton in mangrove ecosystem which is useful for the preservation of biota life of Mangrove waters. This research was conducted in October - November 2017 at Tapak Mangrove Tugurejo Semarang. The results of this study obtained an average chlorophyll-1 content of 0.165 mg / l, an average nitrate content of 2.188 mg / l and an average phosphate content of 0.045 mg / l. Abundance of phytoplankton found as many as 23 species and zooplankton found as many as 5 species. Based on the trophic index status of Mangrove waters Tapak Tugurejo Semarang included in the category of mesotrophic waters, the nutrients and nutrients in the mangrove waters are less available or moderate and not contaminated. The condition of mangrove ecosystem fertility is observed quite well when compared with nutrient content, chlorophyll-a and plankton abundant in research waters, thus allowing many life biota - bioata waters. The conclusion of this research is the content of nutrients (nitrate and phosphate) and chlorophyll a and plankton in mangrove waters greatly affect the fertility of aquatic ecosystems, and the plankton that dominate the research site is from the Baccilariophyceae class of 21 species.Keywords : Trophic Status, Plankton, Mangrove Ecosystem, Mangrove Tapak Tugurejo SemarangCitation: Prihatin, A, Setyono, P dan Sunarto (2018). Sebaran Klorofil-a, Nitrat, Fosfat dan Plankton Sebagai Indikator Kesuburan Ekosistem di Mangrove Tapak Tugurejo Semarang. Jurnal Ilmu Lingkungan, 16(1), 68-77, doi:10.14710/jil.16.1.68-77