scholarly journals PENGEMBANGAN TEKNOLOGI PANEN HUJAN DAN ALIRAN PERMUKAAN: ANALISIS USAHATANI PEMANFAATAN SUMBERDAYA AIR

Author(s):  
Adang Hamdani ◽  
Sidik Hadi Talaohu ◽  
Nani Heryani

<p>ABSTRACT</p><p><br />Development of Rainfall and Runoff Harvesting Technology: Farming System Analysis of<br />Water Resources Utilization. Application of rainfall and runoff harvesting in dry land could be increasing the availability of water resources, extending the growing season, and reducing the risk of loss yield. To create a sustainable water management, farmers participation were needed in its management. The objectives of the research<br />were to study the impact of rainfall and runoff harvesting technology applications (channel reservoir) on farming system and to study the farmers perception on the existence of channel reservoir.The study was conducted in Limampoccoe village, Cenranae subdistrict, Maros distrisct, South Sulawesi province, from February to October 2012. The research was conducted by several steps namely: 1) the application of rainfall and runoff harvesting<br />technology through channel reservoir, 2) analysis of the farming system and assessment of the farmer perception on the existence of channel reservoir. Result of the research showed that rainfall and runoff harvesting technology have been increasing the cropping intensity by changing the previous cropping pattern from rice-fallow-fallow into ricepeanuts-<br />fallow and rice-watermelon-fallow. There was an increase in farmers' income after channel reservoir built and the farmers will be taken the responsibility to maintain the continuity of the channel reservoirs function.</p><p><br /><em>Keywords: </em>rainfall and runoff harvesting, cropping intensity, farmers’ income</p><p><br />ABSTRAK</p><p><br />Aplikasi teknologi panen hujan dan aliran permukaan di lahan kering dapat meningkatkan ketersediaan air, memperpanjang masa tanam, dan menekan risiko kehilangan hasil. Untuk menciptakan pengelolaan air berkelanjutan harus didukung peran serta masyarakat/petani dalam pengelolaannya. Penelitian ini bertujuan untuk mempelajari dampak aplikasi teknologi panen hujan (dam parit) terhadap usahatani dan melihat persepsi masyarakat terhadap keberadaan dam parit. Penelitian dilakukan di Desa Limampoccoe, Kecamatan Cenranae, Kabupaten Maros, Provinsi Sulawesi Selatan, pada bulan Pebruari sampai Oktober 2012. Kegiatan dilaksanakan melalui: 1) aplikasi pembangunan teknologi panen hujan dan aliran permukaan melalui dam parit, 2) analisis usahatani dan penilaian<br />persepsi masyarakat terhadap keberadaan dam parit. Hasil penelitian menunjukkan bahwa teknologi panen hujan dan aliran permukaan dapat meningkatkan intensitas tanam dari pola tanam padi-bera-bera menjadi padi-kacang tanahbera dan padi-semangka-bera, dengan demikian terdapat peningkatan pendapatan usahatani setelah pembangunan dam<br />parit. Petani merasakan manfaat dam parit dan merasa bertanggung jawab dalam menjaga kelangsungan fungsi dam parit.</p><p><br />Kata kunci:<em> teknologi panen hujan, aliran permukaan, indeks pertanaman, pendapatan                       usahatani</em></p>

2019 ◽  
Vol 17 (3) ◽  
pp. 259-270 ◽  
Author(s):  
Svitlana Fedulova ◽  
Volodymyr Dubnytskyi ◽  
Vitalina Komirna ◽  
Nataliia Naumenko

The world tendencies of spatial development, namely the availability of limited resources (primarily water) and the growth of the world’s food needs focus on the resource specialization of the region. On this basis, the purpose of the article is to study the impact of the water-capacious economy on the economic development of the country and its regions. The study used the traditional and special methods, including: historical and logical method – to analyze the functioning of regional socio-economic systems under limited water resources; and system analysis methods – to evaluate the impact of the water-capacious economy on the economic development of the country and its regions. The research results have important implications for the management of the territories. The authors show that the production specialization of the regions of Ukraine on the export/import of water-capacious products is not determined by their water supply. They also suggest that stimulating the region’s water-efficient activity should lead to a minimization of the water capacity of gross regional product and the reproduction of water capital, taking into account the water security of the regions. The authors also show that the water resources of the country and its regions and the natural water potential of the territories in the current situation become significant restriction to the economic development of territories, which allows to state the need to change the approaches to the regulation of regional development based on limited water resources.


2017 ◽  
Vol 1 (01) ◽  
pp. 9-16 ◽  
Author(s):  
YAYAN APRIYANA ◽  
YELI SARVINA ◽  
ELSA RAKHMI DEWI ◽  
ARIS PRAMUDIA

Apriyana Y, Sarvina Y, Dewi ER, Pramudia A. 2017. Farmer adaptation strategy in paddy field affected by climate variability in monsoon regions. Asian J Agric 1: 9-16. Adaptation of agriculture cultivation to climate variability and climate anomalies both in paddy field especially in monsoon regions is one of the strategies to minimize the impact of these two phenomena to reduce the economic loss, particularly for food security in Indonesia. The objectives of this study are: (i) to identify onset and cropping pattern in irrigated land, rainfed and dry land in affected area due to climate anomalies, (ii) to collect information on carrying capacity water resources and adaptation practices applied by farmers and, (iii) to identify strategies for farmers on irrigated land, rainfed and dry land in the region affected by climate variability. The desk work analysis and field survey were conducted in Serang District, Banten Province, Subang District, West Java Province and Pati District, Central Jawa Province, Indonesia. The study was undertaken in three cluster activities i.e. (i) correlation analysis of climate anomalies and rainfall, (ii) field survey and, (iii) analysis of onset planting season, cropping pattern, water availability, the best planting time and irrigation schedule. The results showed that the farmers in affected area due to climate variability could adapt by shifting the onset of planting season. Farmers in irrigated lands changed their onset around 2-4 ten-days period to October II - December II. Furthermore, in rainfed areas, the onset around 4-6 ten-days period was shifted to November I - January III. For dry land their onset around 6-8 ten-days period was moved to November II - February I. The cropping pattern rice-rice-palawija/fallow was applied on irrigated land. Furthermore, the pattern of rice-rice/palawija/fallow-fallow was carried out in rainfed. Finally, the pattern of palawija-palawija/fallow-dormant was performed on the dry land. Adaptation programs dealing with climate variability in Serang and Pati Districts varied more than in Subang District. In Serang and Pati, during the first planting season, farmers applied irrigation roughly 20%-30% of water pump from the river and during second planting season, farmers in Pati District used water from well-pump, as well as in Serang that can reach 100% of the application.


Author(s):  
X. B. Wang ◽  
Z. L. Wang

Abstract The paper uses the super-efficiency DEA (Data Envelopment Analysis) model to measure the water resources utilization efficiency of 30 provinces in China, and then uses the system GMM (Generalized Method of Moments) model to analyze the impact of environmental regulations on China's regional water resources utilization efficiency. Conclusions as follows: (1) The overall water utilization efficiency is low, and the regions are very unbalanced. The more efficient areas are concentrated in the east, and the less efficient areas are in the west; (2)There is a ‘U’-shaped relationship between the intensity of environmental regulation and water resource utilization efficiency, that is, weaker environmental regulation intensity is not conducive to the improvement of water resource utilization efficiency, but when the intensity of environmental regulation crosses the ‘inflection point’, it can promote the improvement of water resources utilization efficiency; (3) The level of economic development has a very significant positive effect on water resources utilization efficiency, and the coefficient of scientific and technological progress is positive, but the impact of scientific and technological input on water resources utilization efficiency is limited and not significant; industrial structure and water resource utilization efficiency shows a negative correlation; water use structure and water resources efficiency show a negative correlation.


2014 ◽  
Vol 05 (04) ◽  
pp. 257-269
Author(s):  
Mohammad Mehdi Ghasemi ◽  
Mohammad Karamouz ◽  
Lee Teang Shui

2020 ◽  
Vol 7 (4) ◽  
pp. 92-108
Author(s):  
Ujjal Deka Baruah ◽  
Nitashree Mili ◽  
Manjil Basumatary ◽  
Anup Saikia

Various indicators such as production, yield, mechanisation of farms, workforce engaged in farming are generally used for the evaluation of the status of the agricultural sector in a region. Of these, the cropping pattern is one such indicator that signifies how developed the farming system of a region is. To assess the cropping pattern, a number of statistical indices are available—cropping intensity, crop combination, crop concentration, and crop diversification. This research seeks to evaluate the cropping pattern in Assam, India and examines the status of its agricultural sector. It was found that the cropping intensity increased at a gradual rate of 3% per decade. A total of nine statistical indices were used to estimate crop diversification. These indices were compared amongst themselves to determine the most optimal method for the study area. It was found that the ogive and entropy methods were best suited to Assam in an evaluation of its crop diversification. Further, these crop diversification values were ranked and thereafter, a composite score (Kendall’s method) was derived. The composite score indicated that much of western and northern Assam had a high degree of crop diversification.


2016 ◽  
Vol 25 (1) ◽  
pp. 69 ◽  
Author(s):  
Yayan Apriana ◽  
Erni Susanti ◽  
NFn Suciantini ◽  
Fadhlullah Ramadhani ◽  
Elza Surmaini

<p>Changes in the frequency and severity of extreme climate events and in the variability of weather patterns will have significant consequences for stability of agricultural system. Research objectives were to a) analyze the Impact of Climate Change on Food Crops in Dryland b) develop a software prototype analysis of the impact of climate change on food production, especially upland rice and maize on dry land; c) create a simulation with multiple scenarios of the impact of climate change on dry land. The study was conducted in South Sulawesi, West Nusatenggara and East Nusatenggara.The activities were carried out by projecting precipitation using scenarios: a) SRESA2 (Scenarios of climate change by assuming economic growth is lower and population growth remains high so the rate of greenhouse gas emissions increased, b) SRESB1 (scenario of climate change by assuming mitigation efforts through expanding efficient use of energy and technology improvements so that the emission levels are lower) and making projections of production of upland rice and maize using Decission Support System for Agrotechnology Transfer (DSSAT) as resource information in the preparation of prototype software information Systems Climate Change Impacts on Crop Production (SIDaPi TaPa). The system was built based on the analysis simulation model projections of production output DSSAT. Based on SRES scenarios A2, the decline in rainfall increased until 2050 in several districts, in South Sulawesi, West Nusatenggara and East Nusatenggara.Treatment of adaptation through SRESB1 scenarios could be effective to anticipate a decrease in rainfall in some regions, either in 2025 or 2050. In general, the region experiencing a decrease in rainfall will also decrease in production of both upland rice and maize production. The decline in upland rice production by SRESA2 scenario until 2050 was between 20-25%, and by a scenario adaptation SRESB1 the decline in production could be minimized to only between 7 -10%.The decline in maize production in the plot until 2050 by SRESA2 was between 9-15%, using scenarios to reduce production SRESB1 was only 5-8%. SIDAPI TAPA is a software analysis of the impact of climate change on food production, especially upland rice and maize on dry land in South Sulawesi, West Nusatenggara and East Nusatenggara.</p>


Author(s):  
Bing Liu ◽  
Zhenhua Wang

Light and heat resources are ample in Xinjiang plain oasis region. Planting structure is single in irrigation area, which leads to severe seasonal water shortages due to high concentration of water utilization. Therefore, how to make full use of light and heat resources to develop oasis agriculture without expanding planting scale has become the focus of research. The biannual cropping patterns are possible solutions to the problem. Manas River Irrigation area, which is located on the northern slope of Tianshan Mountain in Xinjiang in China is regarded as a typical case study to analyze the suitable planting structure and planting scale for biannual cropping pattern. The effects of optimizing planting patterns on alleviating the contradiction between water supply and water need,and the efficiency of water resources utilization was also studied. The results of the study show that:(1) the suitable planting scales of Manas River irrigation area in wet year (P = 25%), normal year (P = 50%), and low flow year (P = 75%) are about 72.66%, 78.73% and 83.91% of the current planting scale. (2) After the planting structure was optimized, the water use process in the irrigation area extends from May to August at present to April to November. The water use ratio at the peak period of water use decreased from 0.847 to 0.601, and the water use peak was significantly dispersed. (3) Economic benefits per cubic metre of water of the biannual cropping patterns increased from 8.65 yuan&middot;m&minus;3 at present to 9.45 yuan&middot;m&minus;3, 10.31 yuan&middot;m&minus;3 and 11.43 yuan&middot;m&minus;3 in wet year (P = 25%), in normal year (P = 50%) and low flow year (P = 75%) respectively, which proved that replanting crops could improve the efficiency of water resources utilization in irrigated areas. Therefore, the optimal planting pattern can be implemented to improve the utilization efficiency of soil and water resources in irrigation area in the arid oasis with single planting pattern with excessive concentration of water use peak and serious water shortage.


2008 ◽  
Vol 13 (1) ◽  
pp. 67-76
Author(s):  
Yulia Pujiharti ◽  
Oteng Haridjaja ◽  
. Eriyatno ◽  
I Wayan Rusastra

The study aimed at building model of dry land management.  Dynamic System Analysis was used to build model and Powersim 2.51 version for simulating.  The parameter used in model were fertilizer (urea, SP-36, ACL), productivity (corn, cassava, mungbean), soil nutrient (N, P, K), crop nutrient requirements (corn, cassava, mungbean, mucuna), price (corn, cassava, mungbeans corn flour, feed, urea, SP-36, KCl), food security credit, area planted of (maize, cassava, mungbean), area harvested of (maize, cassava, mungbean), (corn, cassava, mungbean) production, wages and farmer income.  Sustainable indicator for ecology aspect was soil fertility level, economic aspects were productivity and farmer income, and social aspects were job possibility and traditions.  The simulation result indicated that sustainable dry land management can improve soil fertility and increase farmer revenue, became sustainable farming system and farmer society. On the other hand, conventional dry land management decreased soil fertility and yield, caused farmer earnings to decrease and a farm activity could not be continued.  Fertilizer distribution did not fulfill farmer requirement, which caused fertilizer scarcity.  Food security credit increased fertilizer application.  Corn was processed to corn flour or feed to give value added. 


Author(s):  
Chonghao Li ◽  
Kaige Chi ◽  
Bo Pang ◽  
Hongbin Tang

Abstract. In the recent decade, the demand for water resources has been increasing with the economic development. The reservoirs of cascade hydropower stations in Hongshuihe basin, which are constructed with a main purpose of power generation, are facing more integrated water resources utilization problem. The conflict between power generation of cascade reservoirs and flood control, shipping, environmental protection and water supply has become increasingly prominent. This paper introduces the general situation and integrated water demand of cascade reservoirs in Hongshuihe basin, and it analyses the impact of various types of integrated water demand on power generation and supply. It establishes mathematic models, constrained by various types of integrated water demand, to guide the operation and water resources utilization management of cascade reservoirs in Hongshuihe basin. Integrated water coordination mechanism of Hongshuihe basin is also introduced. It provides a technical and management guide and demonstration for cascade reservoirs operation and integrated water management at home and abroad.


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