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DAMPAK PRIMA TANI TERHADAP PEMANFAATAN DAN PRODUKTIVITAS SUMBERDAYA LAHAN DAN PENDAPATAN RUMAH TANGGA PETANI Subagyono, Kasdi; Kariyasa, Ketut
Jurnal Pengkajian dan Pengembangan Teknologi Pertanian Vol 15, No 1 (2012): Maret 2012
Publisher : Jurnal Pengkajian dan Pengembangan Teknologi Pertanian

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Impact of Prima Tani on Land Resources Utilization and Productivity and Farmer Household Income. In efforts to accelerate technology adoption and innovation at farmer level, Department of Agriculture through IAARD since 2005 has developed Prima Tani Program that spread over in 25 provinces and at 33 villages. In 2008, it covered 201 villages and 200 districts in all provinces of Indonesia. The aim of this study at assessing the impact of Prima Tani focused on land resources utilization and farmer household income. Study was conducted in West Java (Karawang and Garut districts), as one of province for Prima Tani development. The study results indicate that the Prima Tani had a positive impact on the utilization of land resources. This was evident in the increasing use of land resources for farming activities (13.72%) and cropping intensity index (50-100%). Furthermore, it was also able to significantly improve the land resources productivity (>40%) and enhance the role and contribution of agriculture to farmer household income (33% to 38%). Thus, Prima Tani Program has shown good performance and it it was be in line with governments program in reduction of poverty and unemployment problems in rural areas. Therefore,Â the success of this program in the future will be determined by the support of various parties and related agencies in encouraging the acceleration of its adoption in broader areas. Dalam upaya mempercepat adopsi dan teknologi inovasi di tingkat petani, Departemen Pertanian melalui Badan Litbang Pertanian sejak 2005 mengembangan Program Prima Tani yang tersebar di 25 provinsi dan 33 desa. Pada 2008, program ini telah tersebar di 201 desa dan 200 kabupaten di seluruh provinsi di Indonesia. Tujuan studi ini adalah mengkaji dampak Prima Tani yang difokuskan pada pemanfaatan sumberdaya lahan dan pendapatan rumah tangga petani. Kajian telah dilakukan di Jawa Barat (Kabupaten Karawang dan Garut), sebagai salah satu provinsi pengembangan Prima Tani. Hasil kajian menunjukkan bahwa Prima Tani mempunyai dampak positif terhadap pemanfaatan sumberdaya lahan. Hal ini dibuktikan semakin meningkatnya penggunaan sumberdaya lahan untuk kegiatan usahatani (13,72%) dan intensitas pertanaman (50-100%). Lebih lanjut, program ini juga secara nyata mampu memperbaiki produktivitas sumberdaya lahan (>40%) dan meningkatkan peranan serta kontribusi usaha pertanian terhadap pendapatan keluarga petani (33% menjadi 38%). Dengan demikian, program yang berawal dari desa ini telah menunjukkan kinerja secara baik dan sejalan dengan program pemerintah untuk mengurangi kemiskinan dan pengangguran di perdesaan. Oleh karena itu, kesuksesan program ini ke depan sangat ditentukan adanya dukungan berbagai pihak dan instansi terkait dalam mendorong percepatan adopsinya dalam skala yang lebih luas.

Sectoral Impact and Current Coping Mechanisms: Water Resources and Agriculture SUBAGYONO, KASDI; SUSANTI, ERNI
Jurnal Sumberdaya Lahan Vol 3, No 01 (2009): Juli 2009
Publisher : Indonesian Center for Agriculture Land Resource Development

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Available water resources and its quality in Indonesia have been deteriorated as an impact of climate change (and/or) environmental degradation. This could affect on farming processes particularly and agricultural development in general. Virtual available surface water gives a figure that available water decreased temporally and spatially. For instance, in Java island with cover 65% of total population only has 4.5% of the total available water in the country. Agriculture is the biggest use of water (about70%), but it will be difficult for farmers to accomplish water requirements. Other users such as domestic (about 6%), industry (about7%), and municipal (about 4%) are also the major users of water in the country, which may raise a conflict among the users in covering the needs. Current mechanisms to cope climate change in water resources management has been executed through adaptation and mitigation measures for supporting farming system. Integrated water resources management plays critical role in coping climate change. This includes prioritizing water requirements, water harvesting, water conservation, appropriate water allocation, and pollution control. For sustainable farming system development, mitigation strategy should also be included in themechanism covering practices of intermittent irrigation to over come high rate of methane emission. Combining water management and tolerance crops to drought and submergence conditions is very valuable in implementing the mechanisms.

SECTORAL IMPACT AND CURRENT COPING MECHANISMS: WATER RESOURCES AND AGRICULTURE SUBAGYONO, KASDI; SUSANTI, ERNI
Jurnal Sumberdaya Lahan Vol 3, No 1 (2009)
Publisher : Indonesian Center for Agriculture Land Resource Development

Available water resources and its quality in Indonesia have been deteriorated as an impact of climate change (and/or) environmental degradation. This could affect on farming processes particularly and agricultural development in general. Virtual available surface water gives a figure that available water decreased temporally and spatially. For instance, in Java island with cover 65% of total population only has 4.5% of the total available water in the country. Agriculture is the biggest use of water (about70%), but it will be difficult for farmers to accomplish water requirements. Other users such as domestic (about 6%), industry (about7%), and municipal (about 4%) are also the major users of water in the country, which may raise a conflict among the users in covering the needs. Current mechanisms to cope climate change in water resources management has been executed through adaptation and mitigation measures for supporting farming system. Integrated water resources management plays critical role in coping climate change. This includes prioritizing water requirements, water harvesting, water conservation, appropriate water allocation, and pollution control. For sustainable farming system development, mitigation strategy should also be included in themechanism covering practices of intermittent irrigation to over come high rate of methane emission. Combining water management and tolerance crops to drought and submergence conditions is very valuable in implementing the mechanisms.

ANALYSIS OF WATER PRODUCTION POTENCIAL UNDER VARIOUS SCENARIO IN PANINGGAHAN-SINGKARAK WATERSHED PUJILESTARI, N.; TARIGAN, S.D.; SUBAGYONO, KASDI
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) No 33 (2011): Juli 2011
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v0n33.2011.%p

Paninggahan watershed is the sub watershed of the Singkarak Lake watershed. It has a largest part of managed forest in the upstream and the change of landuse from forest to mixture garden increasing rapidly. The study on the change of discharge related to the landuse change is the main focus of this research. The result shows that hydrological characteristic of Paninggahan watershed is still good, with the domination of secondary forest covering 53% of the watershed. Therefore this watershed still has large amount of water reserve. The result of monitoring landuse change from year 1984-2007, indicating that the rate of forest decreasing was 66 ha year-1 and the increasing of mixture garden was 39 ha year-1. The result of characteristic simulation discharge showed that forest degradation will increase total volume of discharge to 1.3 m3 s-1, whereas minimum debit will progressively decrease till 0.2 m3 s-1. The knowledge of the influence of landuse change due to decreasing of debit in the watershed becomes guidance for the continous watershed development.

Relationship between Concentration and Discharge on Storm Events: Case Study at Cakardipa Catchment, Cisukabirus Subwatershed, Upper Ciliwung Watershed, Bogor, West Java Heryani, Nani; Pawitan, Hidayat; Jarwadi Purwanto, Mohamad Yanuar; Subagyono, Kasdi
JOURNAL OF TROPICAL SOILS Vol. 17 No. 1: Januari 2012
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2012.v17i1.85-95

River nutrient loadings rates are frequently determined from discharge and hydrochemistry relationships using regression techniques. Unfortunately such methods as a conventional technique are inadequate for dealing with the problem such as differences in shape and direction of loop forming in individual and seasonal storms. Besides the relationships are nonlinear and time-dependent, they also varies from site to site. There is a currently method to study hysteresis between discharge and concentration of hydrochemistry. The relationship between discharge and solute concentration was investigated at Cakardipa catchment, Upper Ciliwung watershed, between the years of 2009-2010. The characteristics of the hysteresis loops were used to evaluate the temporal variation of the relative contribution to stream flow of source waters at Cakardipa Catchment including groundwater (CG), soil water (CSO), and rain water (CR). Chemical water analysis was carried out on 497 water samples on storm event. The chemical analysis of storm event of Februari 14, 2010 was carried out for the concentrations of K+, Ca2+, Mg2+, Na+, SiO2, SO42-NO3-, Cl-, and HCO3-. Results of the experiment showed that concentrations displayed circular hysteresis loops during the events, highlighting the complex relation among solutes and discharge during storm hydrographs. The solutes of K, Na, and Ca produced concave curvature, anti-clockwise hysteresis loops, and positive trend, so that classified as A2 loops with components ranking were CR> CG> CSO. .The solutes of Mg, SO4, NO3 assumed to come from groundwater produced convex curvature, clockwise hysteresis loops, and positive trend, indicating a concentration component ranking of CG > CR > CSO (C2 model). While Si and Cl produced clockwise hysteresis loops, indicating a concentration component ranking of CG> CSO> CR which was C1 model.

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