Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

All

Agromet

agromet
Website

Published by Institut Pertanian Bogor

ISSN : 01263633 EISSN : 2655660X DOI : -

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

Agromet publishes original research articles or reviews that have not been published elsewhere. The scope of publication includes agricultural meteorology/climatology (the relationships between a wide range of agriculture and meteorology/climatology aspects). Articles related to meteorology/climatology and environment (pollution and atmospheric conditions) may be selectively accepted for publication. This journal is published twice a year by Indonesian Association of Agricultural Meteorology (PERHIMPI) in collaboration with Department of Geophysics and Meteorology, Faculty of Mathematics and Natural Sciences, IPB University.

Arjuna Subject : -

Articles 6 Documents

Search results for , issue "Vol. 24 No. 2 (2010): DECEMBER 2010" : 6 Documents clear

PREDICTION OF PLANTING DATE AND GROWING PERIOD USING SEA SURFACE TEMPERATURE (SST) ANOMALIES IN NINO 3.4 FOR INDRAMAYU DISTRICT Rini Hidayati; Daniel Naek Chrisendo
Agromet Vol. 24 No. 2 (2010): DECEMBER 2010
Publisher : PERHIMPI (Indonesian Association of Agricultural Meteorology)

Agriculture is a very important sector in Indramayu’s economy. Approximately 53.52% of Indramayu residents are involved in agriculture. Indramayu is a center of rice production in Indonesia. Most of the farmers use a traditional cropping method called Pranata Mangsa, which is based on periodic natural events, but not consider climate variability well. Climate variability has become a major obstacle to achieving a successful harvest, because it can affect the timing of planting and length of the growing season, which leads to drought and flood vulnerability. The planting date and growing season predicted by using monthly sea surface temperature anomalies (SSTa) in Nino 3.4. The August SSTa can describe the planting date better than the growing season, which are demonstrated best in Lohbener with R2 = 45% with forecast skill reach = 84% and 92% for advanced and delayed planting dates. Knowing the planting date and growing season length produce a more effective cropping calendar, which includes details such as when to prepare the land, plant seeds, and harvest. This cropping calendar is expected to reduce the impacts of climate variability by providing a more efficient cropping pattern and avoiding potential harvest failures.Agriculture is a very important sector in Indramayu's economy. Approximately 53.52% of Indramayu residents are involved in agriculture. Indramayu is a center of rice production in Indonesia. Most of the farmers use a traditional cropping method called Pranata Mangsa, which is based on periodic natural events, but not consider climate variability well. Climate variability has become a major obstacle to achieving a successful harvest, because it can affect the timing of planting and length of the growing season, which leads to drought and flood vulnerability. The planting date and growing season predicted by using monthly sea surface temperature anomalies (SSTa) in Nino 3.4. The August SSTa can describe the planting date better than the growing season, which are demonstrated best in Lohbener with R2 = 45% with forecast skill reach = 84% and 92% for advanced and delayed planting dates. Knowing the planting date and growing season length produce a more effective cropping calendar, which includes details such as when to prepare the land, plant seeds, and harvest. This cropping calendar is expected to reduce the impacts of climate variability by providing a more efficient cropping pattern and avoiding potential harvest failures.

ANALISIS PERILAKU INDEKS KEKERINGAN DI WILAYAH RENTAN KEBAKARAN, SUMATRA SELATANBEHAVIOR ANALYSIS OF DROUGHT INDEX IN FIRE-PRONE REGION OF SOUTH SUMATRA Muh Taufik
Agromet Vol. 24 No. 2 (2010): DECEMBER 2010
Publisher : PERHIMPI (Indonesian Association of Agricultural Meteorology)

Climate dynamics has a vital role in changing upper soil moisture that influences drought period and occurence especially for fire-prone region in South Sumatra Indonesia. Drought occurrence causes abundant dry fuel being available at peat forest ecosystem that might rise of fire risk and danger in the region. Using daily maximum air temperature and rainfall data for period of 1984-2009, we calculated daily Keetch-Byram drought index (KBDI) as an index for assessing fire danger potential. The index was gropued into three categories comprising low, moderate, and high fire danger levels. Temporally, we found that fire danger level at the study area site are able to be grouped as follows: period of December to April was categorized low, period of July to October as high, and the remaining months as moderate. El Nino event had a severe influence on the severity and the duration of high KBDI that occurred until the end of November which normally a rainy season. Other finding is that there was a significant change (α=5%) on the rise of annual high KBDI frequency and average KBDI for period of 1984-2009, conversely frequency of rainy days decreased significantly. Information about when KBDI level reach high fire danger is of important for forest fire mangament in the region.Climate dynamics has a vital role in changing upper soil moisture that influences drought period and occurence especially for fire-prone region in South Sumatra Indonesia. Drought occurrence causes abundant dry fuel being available at peat forest ecosystem that might rise of fire risk and danger in the region. Using daily maximum air temperature and rainfall data for period of 1984-2009, we calculated daily Keetch-Byram drought index (KBDI) as an index for assessing fire danger potential. The index was gropued into three categories comprising low, moderate, and high fire danger levels. Temporally, we found that fire danger level at the study area site are able to be grouped as follows: period of December to April was categorized low, period of July to October as high, and the remaining months as moderate. El Nino event had a severe influence on the severity and the duration of high KBDI that occurred until the end of November which normally a rainy season. Other finding is that there was a significant change (α=5%) on the rise of annual high KBDI frequency and average KBDI for period of 1984-2009, conversely frequency of rainy days decreased significantly. Information about when KBDI level reach high fire danger is of important for forest fire mangament in the region.

MODEL PERUBAHAN PENGGUNAAN LAHAN DAN PENDUGAAN CADANGAN KARBON DI DAERAH ALIRAN SUNGAI CISADANE, JAWA BARATLANDUSE CHANGE MODEL AND CARBON STOCK ESTIMATION IN CISADANE WATERSHED, WEST JAVA Antonio Alberto; Bambang Dwi Dasanto
Agromet Vol. 24 No. 2 (2010): DECEMBER 2010
Publisher : PERHIMPI (Indonesian Association of Agricultural Meteorology)

Land use and land cover in Cisadane Watershed are very vulnerable to switch over, which is caused by the high rate of population growth. Land use and land cover change cause the carbon stock changes. These changes were analysed using the logistic regression models, and in this analysis we used land use maps in 2001 and 2006. As many as 44 regression equations were developed with various values of determination coefficient (R2); 14% of the R2 was less than 0.50, 29% was between 0.50 and 0.75, and 57% is than 0.75. Statistically, there were 31 equations suitable to generate landuse map in 2010, 2015, 2020, and 2025. The amount of carbon stocks in Cisadane Watershed until the year 2025 tend to decrease, so the sum of carbon emissions in the atmosphere increased. This was mainly due to conversion of forest area into other landuse types. Land use and land cover in Cisadane Watershed are very vulnerable to switch over, which is caused by the high rate of population growth. Land use and land cover change cause the carbon stock changes. These changes were analysed using the logistic regression models, and in this analysis we used land use maps in 2001 and 2006. As many as 44 regression equations were developed with various values of determination coefficient (R2); 14% of the R2 was less than 0.50, 29% was between 0.50 and 0.75, and 57% is than 0.75. Statistically, there were 31 equations suitable to generate landuse map in 2010, 2015, 2020, and 2025. The amount of carbon stocks in Cisadane Watershed until the year 2025 tend to decrease, so the sum of carbon emissions in the atmosphere increased. This was mainly due to conversion of forest area into other landuse types.

KOEFISIEN PEMADAMAN TAJUK DAN EFISIENSI PENGGUNAAN RADIASI SURYA PADA TANAMAN KENTANG (Solanum tuberosum L.) VARIETAS GRANOLA DI GALUDRA, CIANJUR, JAWA BARATCANOPY EXTINCTION COEFFICIENT AND SOLAR RADIATION USE EFFICIENCY... I. Handoko; Titik Kodarsih; A. Ariyani
Agromet Vol. 24 No. 2 (2010): DECEMBER 2010
Publisher : PERHIMPI (Indonesian Association of Agricultural Meteorology)

Important climatic factor affecting growth of potato crop other than temperature is the availability of solar energi. Growth of the crop can be predicted from the amount of intercepted solar radiation by crop canopy, however, climatological station only measures incoming solar radiation above crop canopy (Qo). This experiment aims to derive parameter of canopy extinction coefficient (k) that is required to calculate intercepted radiation based on Qo; and parameter of radiation-use efficiency (ε) to calculate crop biomass based on that intercepted radiation. This research found the value of k increasing from k=0.15 to k=0.50 associated with increasing LAI from 0.98 to 1.98. Solar radiation use efficiencies that were calculated based on above-ground biomass (AGB) and total biomass (AGB+tuber) are respectly εand εTotal=4,49 g MJ-1. Important climatic factor affecting growth of potato crop other than temperature is the availability of solar energi. Growth of the crop can be predicted from the amount of intercepted solar radiation by crop canopy, however, climatological station only measures incoming solar radiation above crop canopy (Qo). This experiment aims to derive parameter of canopy extinction coefficient (k) that is required to calculate intercepted radiation based on Qo; and parameter of radiation-use efficiency (ε) to calculate crop biomass based on that intercepted radiation. This research found the value of k increasing from k=0.15 to k=0.50 associated with increasing LAI from 0.98 to 1.98. Solar radiation use efficiencies that were calculated based on above-ground biomass (AGB) and total biomass (AGB+tuber) are respectly εand εTotal=4,49 g MJ-1.

CAPACITY OF INDONESIAN FOREST AS CO2 SINK: COMPARING AN INTACT PRIMARY FOREST OF LORE LINDU NATIONAL PARK CENTRAL SULAWESI WITH DEGRADED AND DRAINED PEATLAND FOREST IN CENTRAL KALIMANTAN Tania June
Agromet Vol. 24 No. 2 (2010): DECEMBER 2010
Publisher : PERHIMPI (Indonesian Association of Agricultural Meteorology)

This article compares the capacity of undisturbed tropical forest in absorbing COand acts as a net sink with the disturbed (drained) peatland forest acting as a net source. Undisturbed forest of Lore Lindu National Park (LLNP) absorbs substantial amount of CO22 with low ecosystem respiration resulted in a net absorbtion reaching -970 gCm-2 year-1. Data from a disturbed peatland forest in Central Kalimantan shows that although absorption was higher than the LLNP area ecosystem respiration of this drained peatland resulted in a big net emission reaching 447 gCm-2 year-1. Recovery of the hydrological system of the area, reduced emission substantially.This article compares the capacity of undisturbed tropical forest in absorbing COand acts as a net sink with the disturbed (drained) peatland forest acting as a net source. Undisturbed forest of Lore Lindu National Park (LLNP) absorbs substantial amount of CO22 with low ecosystem respiration resulted in a net absorbtion reaching -970 gCm-2 year-1. Data from a disturbed peatland forest in Central Kalimantan shows that although absorption was higher than the LLNP area ecosystem respiration of this drained peatland resulted in a big net emission reaching 447 gCm-2 year-1. Recovery of the hydrological system of the area, reduced emission substantially.

KAJIAN KESESUAIAN LAHAN TANAMAN CENGKEH (Eugenia aromatica L.) BERDASARKAN ASPEK AGROKLIMAT DAN KELAYAKAN EKONOMI (Studi kasus Provinsi Sulawesi Selatan)CROP LAND SUITABILITY FOR CLOVE (Eugenia aromatica L.)... Anisa Isnaeni; Yon Sugiarto
Agromet Vol. 24 No. 2 (2010): DECEMBER 2010
Publisher : PERHIMPI (Indonesian Association of Agricultural Meteorology)

Indonesian plantations are increasingly expanding and making progress so as to support the government programs in Indonesia Agricultural development is necessary, especially the plantation area of clove plantations which have many benefits and uses for the community.The aims of this study is to find out the suitability of the clove crop land in South Sulawesi province and the level of effectiveness in investing land. Methodology used is based on suitability area for agroclimate parameters and economical feasibility.The results of analysis shown that South Sulawesi Provinve are potential for extension based on the suitability of clove plants Agro-climate and the closure of its land in the amount of 26.743 km2.There are three land suitability classes, highly suitable areas or S1 (1.897 km2), moderately suitable areas or S2 (23.120 km) and marginally suitable areas or S3 (990 km2). In addition, the region still has the potential areas of land for plantation development is a form of forest land with an area of 8.694 km2.These three land suitabilitieshave feasibility of investment net profit in the S1 field with the present value of Rp 26.841.000/ha, 30,1% IRR, and BCR of 2,16.Net profit in the land S2 is Rp 16.864.000/ha, 24% IRR, and BCR of 1,73%, while net profit on the land S3 is Rp 2.723.000/ha.Areas of land which became the main development priorities with highprioritylandpresentinsixdistrictsnamelyWajo,Jeneponto,Sinjai,Bulukumba,Barru,andBoneIndonesian plantations are increasingly expanding and making progress so as to support the government programs in Indonesia Agricultural development is necessary, especially the plantation area of clove plantations which have many benefits and uses for the community.The aims of this study is to find out the suitability of the clove crop land in South Sulawesi province and the level of effectiveness in investing land. Methodology used is based on suitability area for agroclimate parameters and economical feasibility.The results of analysis shown that South Sulawesi Provinve are potential for extension based on the suitability of clove plants Agro-climate and the closure of its land in the amount of 26.743 km2.There are three land suitability classes, highly suitable areas or S1 (1.897 km2), moderately suitable areas or S2 (23.120 km) and marginally suitable areas or S3 (990 km2). In addition, the region still has the potential areas of land for plantation development is a form of forest land with an area of 8.694 km2.These three land suitabilitieshave feasibility of investment net profit in the S1 field with the present value of Rp 26.841.000/ha, 30,1% IRR, and BCR of 2,16.Net profit in the land S2 is Rp 16.864.000/ha, 24% IRR, and BCR of 1,73%, while net profit on the land S3 is Rp 2.723.000/ha.Areas of land which became the main development priorities with highprioritylandpresentinsixdistrictsnamelyWajo,Jeneponto,Sinjai,Bulukumba,Barru,andBone

Page 1 of 1 | Total Record : 6

Filter by Year

2010 2010

Filter By Issues

All Issue Vol. 39 No. 2 (2025): DECEMBER 2025 Vol. 39 No. 1 (2025): JUNE 2025 Vol. 38 No. 2 (2024): DECEMBER 2024 Vol. 38 No. 1 (2024): JUNE 2024 Vol. 37 No. 2 (2023): DECEMBER 2023 Vol. 37 No. 1 (2023): JUNE 2023 Vol. 36 No. 2 (2022): DECEMBER 2022 Vol. 36 No. 1 (2022): JUNE 2022 Vol. 35 No. 2 (2021): DECEMBER 2021 Vol. 35 No. 1 (2021): JUNE 2021 Vol. 34 No. 2 (2020): DECEMBER 2020 Vol. 34 No. 1 (2020): JUNE 2020 Vol. 33 No. 2 (2019): DECEMBER 2019 Vol. 33 No. 1 (2019): JUNE 2019 Vol. 32 No. 2 (2018): DECEMBER 2018 Vol. 32 No. 1 (2018): JUNE 2018 Vol. 31 No. 2 (2017): DECEMBER 2017 Vol. 31 No. 1 (2017): JUNE 2017 Vol. 28 No. 1 (2014) Vol. 25 No. 1 (2011): JUNE 2011 Vol. 24 No. 2 (2010): DECEMBER 2010 Vol. 24 No. 1 (2010): JUNE 2010 Vol. 23 No. 2 (2009): December 2009 Vol. 23 No. 1 (2009): June 2009 Vol. 22 No. 2 (2008): December 2008 Vol. 22 No. 1 (2008): June 2008 Vol. 21 No. 2 (2007): December 2007 Vol. 21 No. 1 (2007): June 2007 Vol. 20 No. 2 (2006): December 2006 Vol. 20 No. 1 (2006): June 2006 Vol. 19 No. 2 (2005): December 2005 Vol. 19 No. 1 (2005): June 2005 Vol. 18 No. 2 (2004): December 2004 Vol. 18 No. 1 (2004): June 2004 Vol. 17 No. 1 & 2 (2003): June 2003 Vol. 16 No. 1 & 2 (2002): December 2002 Vol. 15 No. 1 & 2 (2000): DECEMBER 2000 Vol. 14 No. 1 & 2 (1999): June 1999 Vol. 13 No. 2 (1998): december 1998 Vol. 13 No. 1 (1998): JUNE 1998 Vol. 12 No. 1 & 2 (1997): DECEMBER 1996/1997 Vol. 11 No. 1 & 2 (1995): DECEMBER 1995 Vol. 10 No. 1 & 2 (1994): DECEMBER 1994 Vol. 9 No. 2 (1993): December 1993 Vol. 9 No. 1 (1993): June 1993 Vol. 8 No. 1 (1992): June 1992 Vol. 7 No. 2 (1991): DECEMBER 1991 Vol. 7 No. 1 (1991): JUNE 1991 Vol. 6 No. 1 (1990): JUNE 1990 Vol. 5 No. 1 (1989): June 1989 More Issue

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kota bogor,

Jawa barat

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name -

Contact Email -

Phone -

Journal Mail Official -

Editorial Address -

Location Kota bogor, Jawa barat INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kota bogor,

Jawa barat

INDONESIA