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Tolerance Levels of Roadside Trees to Air Pollutants Based on Relative Growth Rate and Air Pollution Tolerance Index RINI, SULISTIJORINI; MASUD, ZAINAL ALIM; NASRULLAH, NIZAR; BEY, AHMAD; TJITROSEMITO, SOEKISMAN
HAYATI Journal of Biosciences Vol 15, No 3 (2008): September 2008
Publisher : Bogor Agricultural University, Indonesia

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Abstract

Motor vehicles release carbon monoxide, nitrogen dioxide, sulphur dioxide, and particulate matters to the air as pollutants. Vegetation can absorb these pollutants through gas exchange processes. The objective of this study was to examine the combination of the relative growth rate (RGR) and physiological responses in determining tolerance levels of plant species to air pollutants. Physiological responses were calculated as air pollution tolerance index (APTI). Eight roadside tree species were placed at polluted (Jagorawi highway) and unpolluted (Sindangbarang field) area. Growth and physiological parameters of the trees were recorded, including plant height, leaf area, total ascorbate, total chlorophyll, leaf-extract pH, and relative water content. Scoring criteria for the combination of RGR and APTI method was given based on means of the two areas based on two-sample t test. Based on the total score of RGR and APTI, Lagerstroemia speciosa was categorized as a tolerant species; and Pterocarpus indicus, Delonix regia, Swietenia macrophylla were categorized as moderately tolerant species. Gmelina arborea, Cinnamomum burmanii, and Mimusops elengi were categorized as intermediate tolerant species. Lagerstroemia speciosa could be potentially used as roadside tree. The combination of RGR and APTI value was better to determinate tolerance level of plant to air pollutant than merely APTI method. Key words: air pollutants, tolerance of roadside trees, relative growth rate, physiological responses, air pollution tolerance index
PERENCANAAN LANSKAP JALAN IR. H. JUANDA, KOTA DEPOK Resunda, Inke; Nasrullah, Nizar
Jurnal Lanskap Indonesia Vol 2, No 2 (2010): Jurnal Lanskap Indonesia (JLI)
Publisher : http://web.ipb.ac.id/~landscapearch/

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Abstract

Depok as developing city has mayor attention in transportation sector. One of the problems was the insufficient alternative way within city, and that has caused traffic jam. One solution offered is developing Ir. H. Juanda Street as primary collector road that links the east to the west side of the city. Within 4 km length and 21,8 m right of way (ROW), the street  is passed by Ciliwung river, and it is planned to be a functional and aesthetic streetscape. The aim of this study were to plan a streetscape which is ableto accommodate users needs safely an, comfortably; and also to improve environment quality and to create identity. The spatial plan consisted of circulationarea (32,6%), buffer area (36,4%), service area (22,8%), and identity area (8,2%). Circulation area is for vehicle; buffer area is as buffer and conservation;service as area for users activities; while identity is designate as aesthetic welcoming area. Facilities to be served on site among others are trash basket, pedestrian walk, public phone, sitting area, etc.
EVALUASI TATA HIJAU JALAN PADA TIGA KAWASAN PEMUKIMAN BERSKALA BESAR DI KABUPATEN BOGOR, JAWA BARAT Vitasari, Diana; Nasrullah, Nizar
Jurnal Lanskap Indonesia Vol 2, No 1 (2010): Jurnal Lanskap Indonesia (JLI)
Publisher : http://web.ipb.ac.id/~landscapearch/

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Abstract

The main purpose of this study is to compare road greeneries by describing functional, aesthetic, and maintenance aspects of  those at the settlement of Danau Bogor Raya (DBR), Bukit Sentul (BS) and Kota Wisata (KW). Another one is to propose a concept of functional, aesthetical and maintenance of road greenery. The evaluation of functional aspect are including screening, wind control, glare control, shade control, erosion control, and direction control. The aesthetic evaluation included plant selection and plant arrangement thatevaluated by 30 respondents. While the maintenance included design and technicalaspects.The data analysis indicated differences among thosethe three settlements in plants domination with low to medium variations. The different dimension of road showed that the functional, aesthetic and maintenance aspects of them are not fully suitable with the principle of landscape architecture. In functional aspect, several problem were found such as the problem found in several, such as wind and glare controls in DBR, and wind, glare and shade controls in BS and KW. In aesthetic, the problem found especially in plant arrangement at DBR and KW main ways. In maintenance, technical aspect at DBR and design aspect at KW are still need to be improved.
STIMULASI PEMBUNGAAN BUGENVIL (Bouganvillea spectabilis Willd) DENGAN RETARDAN DAN BERBAGAI KOMPOSISI MEDIA DALAM LINGKUNGAN JALAN YANG TERPOLUSI UDARA Nasrullah, Nizar; Wati, Yulia Mustika; Utami, Devi Wahyuningtyas
Jurnal Lanskap Indonesia Vol 4, No 1 (2012): Jurnal Lanskap Indonesia (JLI)
Publisher : http://web.ipb.ac.id/~landscapearch/

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Abstract

Bougainvillea often found having no flower in polluted street area, and performs only leaves colors. This experiment aims to study flowering forcing on Bougainvillea using growth retardants and media modification inpolluted street area. The experiments were conducted in 2 series, first experiment was conducted in the vicinity of road shoulder of Jl. Yos Sudarso, Sunter North Jakarta to test the effects of 4 kind retar-dants (control, paclobutrazol 500 ppm, daminozide 6000 ppm, and chlormequate 6000 ppm), and 3 types media compositions of soils, dung and sand.Second experiment was conducted in the median of Jagorawi Toll Highway in Bara-nangsiang Bogor to test the effect of 4 concentrations of paclobutrazol (0, 250, 500, 700 ppm) and 3 types media compositions of soil, dung, sand or gravel on Bougainvil-lea flowering.The First experiment results showed that the end of experiments, treatment of paclo-butrazol 500 ppm performed the lowest of plant height in compared to the treatment of daminozide 6000 ppm and chlormequate 6000 ppm and control. The highest number of flower cluster and total number of flower were obtained in treatment of media of soils : dung : sand = 1 : 1 : 2 and in application of 500 ppm of paclobutrazol. Second experiments showed number of flower cluster, and total number of flower were found the highest value in the treatment of media ofsoil : dung : sand = 1 : 1 : 3, and among of paclobutrazol treatment the highest value were found in the treatment of 250 and 500 ppm, and the lowest value was found in the treatment of 700 ppm. Based on expe-riments results, its recommended to use media of soil : dung : sand = 1 : 1 : 3 or appli-cation of 250 ppm paclobutrazol to force flowering of Bougainvillea in polluted street area.
Pengaruh Kombinasi Zeolit, Serbuk Gergaji, dan Pasir sebagai Media Tumbuh Rumput Bermuda (Cynodon dactylon Cv. Tiffdwarf) terhadap Kualitas Fungsionalnya Nasrullah, Nizar; Ansari, Kgs. Azhar
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 28, No 1 (2000): Buletin Agronomi
Publisher : Bogor Agricultural University

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Abstract

The objective of the study is to investigate the effect of the mixture of sow dust, zeolit, and sand as media on turf qualities of Bermuda Grass (Cynodon dactylon var. Tiffdwarf). There are 6 treatments of planting media including : sand 100%, sand 75 % + saw dust 25 % + zeolit 0 %, sand 50 % + sow dust 50 % + zeolit 0 %, sand 50 % + sow dust 25 % + zeolit 25 %, and sand 50 % + sow dust 0 % + zeolit 50 %. The treatment have 3 replication ang arranged in Randomized Block Design. Analysis of media show the addition of sow dust 25 - 50 % into sand media increased physical qualities of media including the  increasing of the water content of media and decreased bulk density of the media. The addition of sow dust 25 % into sand media perform the best qualities of turf compared to the other media including of dry weight of shoots, density of shoot, height of shoot, length of root and the shoot - root ratio.  
Pengaruh Pemupukan Urea dan Nitrogen Slow Release Terhadap Pertumbuhan dan Kualitas Rumput Lapangan Golf Nasrullah, Nizar; Tunggalini, Ni Ketut Wuri
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 28, No 2 (2000): Buletin Agronomi
Publisher : Bogor Agricultural University

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Abstract

The objectives of this study is to investigate the effect of (Urea) and Polymer Coated Urea (Slow Release N - Fertilizer) on the growth and quality of turf Bermuda grass (Cynodon dactylon var. Tifdwarf.) and to find the optimum rate. Treatments are urea and PCU rate at 4.5 g, 9.0g and 13.5 g N/m2/application, respectively. The experiment was arranged in Randomized Block design with 3 replications. Fertilizers were applied 6 times in every 2 locals. The result showed that in the end of the experiment, the higher values of grass height. number of shoots resiliance. Fresh and dry weight were obtained with PCU /3.5 g N/m2/application. The highest dosage of PCU resulted d the highest quality of turf grass.   Key words: Urea, Polymer Coated urea, Bermuda grass
Pengaruh Ketinggian Pemangkasan Dengan Mesin Potrum Srt-03 Terhadap Torsi Pemangkasan Rumput Bermuda (Cynodon dactylon) Tiff Way 146 Wirawan, I Putu Surya; Suastawa, I Nengah; Nasrullah, Nizar
Jurnal Keteknikan Pertanian Vol 22, No 2 (2008): Jurnal Keteknikan Pertanian
Publisher : PERTETA

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Abstract

Rotary mower is one of mowing tools commonly used to maintain lawn or turfgrass. Mowing height and mowing torque are important factors that should be taken into account in sustaining grass quality and designing a rotary mower. The study was addressed to recognize the influence ofmowing height to required mowing torque. The mowing torque was measured at mowing height of 2, 3 and 4 em. Measurement of mowing torque in the field was done by using a specially designed turfgrass mowing apparatus that representing rotary mowing mechanism. The apparatus was equipped with torque measurement system. The average measured torque was used to calculate the power requirement of mowing. The needs of maximum and minimum mowing torque to mow turfgrass for all mowing height were 0,68 Nm and 0,05 Nm. The average of mowing torque were 0,51 Nm, 0,24 Nm, and 0,08 Nm, at mowing height of 2, 3 and 4 em respectively. The maximum and minimum power that required for all mowing height was 196,4 watt and 14,4 watt.Keywords: mowing, rotary mower, turfgrass.Diterirna: 4 Februari 2008; Disefujui: 2 Juni 2008
Pengaruh Ketinggian Pemangkasan Dengan Mesin Potrum Srt-03 Terhadap Torsi Pemangkasan Rumput Bermuda (Cynodon dactylon) Tiff Way 146 Wirawan, I Putu Surya; Suastawa, I Nengah; Nasrullah, Nizar
Jurnal Keteknikan Pertanian Vol 22, No 2 (2008): Jurnal Keteknikan Pertanian
Publisher : PERTETA

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Abstract

Rotary mower is one of mowing tools commonly used to maintain lawn or turfgrass. Mowing height and mowing torque are important factors that should be taken into account in sustaining grass quality and designing a rotary mower. The study was addressed to recognize the influence ofmowing height to required mowing torque. The mowing torque was measured at mowing height of 2, 3 and 4 em. Measurement of mowing torque in the field was done by using a specially designed turfgrass mowing apparatus that representing rotary mowing mechanism. The apparatus was equipped with torque measurement system. The average measured torque was used to calculate the power requirement of mowing. The needs of maximum and minimum mowing torque to mow turfgrass for all mowing height were 0,68 Nm and 0,05 Nm. The average of mowing torque were 0,51 Nm, 0,24 Nm, and 0,08 Nm, at mowing height of 2, 3 and 4 em respectively. The maximum and minimum power that required for all mowing height was 196,4 watt and 14,4 watt.Keywords: mowing, rotary mower, turfgrass.Diterirna: 4 Februari 2008; Disefujui: 2 Juni 2008
Perencanaan Lanskap Kawasan Wisata Danau Bandar Khayangan di Rumbai Pesisir, Pekanbaru Riau Sari, Gusti Dianda; Makalew, Afra DN; Nasrullah, Nizar
Jurnal Lanskap Indonesia Vol 10, No 2 (2018): Jurnal Lanskap Indonesia
Publisher : http://arl.faperta.ipb.ac.id/

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Abstract

Pekanbaru Government is currently increasing development to provide the activities of population needs. One of the development activities undertaken is development in the tourism sector. Bandar Khayangan Lake located in the district of Rumbai Pesisir, Pekanbaru City. The area has the potential of natural resources that can be used as a tourist attraction. Development of the area can cause damage the environment so that is necessary to provide a plan that can maintain the sustainability of this area. This research aims to analyzing and optimize the potential of Bandar Khayangan Lake and make a plan to create sustainable tourism areas. The result of research shows that most of the area is suitable to be used as tourist destination. Based on the analysis to keep the area sustainable, Bandar Khayangan Lake is divided into three zones between intensive zones, semi-intensive zones and non-intensive zones. The landscape plan consist of space plan, circulation, activities and facilities, and vegetation.
JERAPAN DEBU DAN PARTIKEL TIMBAL (Pb) OLEH DAUN BERDASARKAN LETAK POHON DAN POSISI TAJUK: STUDI KASUS JALUR HIJAU Acacia mangium, JALAN TOL JAGORAWI Hermawan, Rachmad; Kusmana, Cecep; Nasrullah, Nizar; Prasetyo, Lilik Budi
Media Konservasi Vol 16, No 3 (2011): Media Konservasi Vol. 16 Nomor 3, Desember 2011
Publisher : Media Konservasi

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Abstract

Tree locations  and crown positions was assumed to have effects on adsorption of dust and Pb particles by leaves.  The objectives of the research were: (a) to determine the effects of tree locations and crown positions on adsorption of dust and Pb particles of leaves in roadside vegetation; (b) to determine the pattern of dust and Pb particle adsorption of leaves in roadside vegetation; (c) to determine correlation between dust and Pb concentration. Leaves samples was taken from the front and back part of the crown of three trees from each of the first three rows of the roadside vegetation.  The samples were used to analysis dust and Pb concentration.   The results showed that  tree locations and  crown positions  affected adsorption of dust and Pb concentration of leaves. There was no interaction between tree locations and crown positions, but there was a decreasing trend from front part of the crown of trees1 until back part of the crowns of tress3.  There was a correlation (R2= 0,755) between dust concentrations and Pb concentrations with equation of Y= 0,1403X-41,686 (Y= Pb concentration ; X= dust concentration). Keywords: roadside vegetation, Pb, dust, concentration, adsorption