scholarly journals Preliminary Prediction of Rice Planting for Planting Season 2019, 2020, and 2021, Based Water Balance in Freshwater Swampland

2020 ◽  
Vol 20 ◽  
pp. 01004
Author(s):  
Vika Mayasari ◽  
Anna Hairani
Keyword(s):  
Climate Change ◽  
Water Balance ◽  
Rice Field ◽  
Rainfall Data ◽  
Rice Crop ◽  
Crop Failure ◽  
Science Park ◽  
Yield Rate ◽  
The Difference ◽  
Planting Season

Climate change that has occurred in recent years causes a shift at the beginning of rice planting. Rice crop failure due to flooding or drought is the main cause of the low Cropping Index in the freshwater swampland such as happened in Swampland Agro Science Park of Banjarbaru. Therefore, this study was carried out to determine the preliminary prediction of the rice planting season for planting season (MT) 2019, 2020, and 2021 based on water balance. As for what can be analyzed was the rainfall data as input compared to evapotranspiration through the Hargreaves approach. Then the output obtained in the form of net rate which used to measure the amount of rain every year. M eanwhile, the water requirement for rice was calculated during the period of growth to harvest. After that, the water balance simulation was performed from the difference in water bubbles (net yield rate) with the water needs in the rice field. Based on this water balance simulation obtained that the beginning of rice planting for MT 2019 is May IV-June IV, MT 2020 is June I-July I, and MT 2021 is June II-July II.

scholarly journals Historical Rainfall and Evapotranspiration Changes over Mpologoma Catchment in Uganda

2020 ◽  
Vol 2020 ◽  
pp. 1-19
Author(s):  
Ambrose Mubialiwo ◽  
Charles Onyutha ◽  
Adane Abebe
Keyword(s):  
Climate Change ◽  
Water Balance ◽  
Climate Variability ◽  
Climate Change Impacts ◽  
Positive Trend ◽  
Careful Planning ◽  
Future Studies ◽  
Nonparametric Approach ◽  
The Difference

Changes in the long-term (1948–2016) rainfall and evapotranspiration over Mpologoma catchment were analysed using gridded (0.25° × 0.25°) Princeton Global Forcing data. Trend and variability were assessed using a nonparametric approach based on the cumulative sum of the difference between exceedance and nonexceedance counts of data. Annual and March-May (MAM) rainfall displayed a positive trend (p<0.05), whereas October-December (OND) and June-September rainfall exhibited negative trends with p>0.05 and p<0.05, respectively. Positive subtrends in rainfall occurred in the 1950s and from the mid-2000s till 2016; however, negative subtrends existed between 1960 till around 2005. Seasonal evapotranspiration exhibited a positive trend (p>0.05). For the entire period (1948–2016), there was no negative subtrend in the OND and MAM evapotranspiration. Rainfall and evapotranspiration trends and oscillatory variation in subtrends over multidecadal time scales indicate the need for careful planning of predictive adaptation to the impacts of climate variability on environmental applications which depend on water balance in the Mpologoma catchment. It is recommended that future studies quantify possible contributions of human factors on the variability of rainfall and evapotranspiration. Furthermore, climate change impacts on rainfall and evapotranspiration across the study area should be investigated.

scholarly journals LEVEL OF FAILURE RISK BASED ON LAND TYPOLOGY OF PARTICIPANTS OF RICE FARM INSURANCE PROGRAMS IN SOUTH SUMATERA

2021 ◽  
Vol 14 (1) ◽  
pp. 11
Author(s):  
Dwi Kuncorojati ◽  
M. Yamin ◽  
Yunita Yunita
Keyword(s):  
Value At Risk ◽  
Rice Field ◽  
Risk Level ◽  
Z Score ◽  
Crop Failure ◽  
Data Section ◽  
Failure Risk ◽  
Failure Losses ◽  
The Impact ◽  
Planting Season

Risk level in South Sumatra differs based on the land typology in which Buay Madang Timur District in East OKU Regency with typical irrigation rice field typology has different risk level compared to Banyuasin Regency with its tidal land typology. This research was aimed to find out risk failure in two land typologies nad losses due to its risk. The calculation of Z score was used to calculate risk level using cross data section in year 2019. Data were collected from each district with 120 AUTP farmer participants consisted of 60 samples of tidal land typology and 60 technical irrigation. Which 60 samples consisted of 52 unclaimed farmers and 8 claimed farmers. Based Z score calculation of crop failure risk, it was resulted that technical irrigation land typology in OKU Regency had 44% risk level due to rat and planthopper attack, compared to 49% tidal land typology in Banyuasin Regency that caused rat attack. Risk impact due to crop failure was then calculated using the Value at Risk (Var) method. Results showed that crop failure losses in East OKU Regency were equal to Rp. 11.304.361,- for each planting season while in Banyuasin Regency it was Rp. 12.445.273,-. Thus, the impact of crop failure risk in tidal land typology was greater than technical irrigation.

scholarly journals Study on the influence of rice paddies’ water layer temperature on rice yield

2021 ◽  
Vol 939 (1) ◽  
pp. 012089
Author(s):  
A Rau ◽  
I Begmatov ◽  
G Rau
Keyword(s):  
Climate Change ◽  
Surface Layer ◽  
Rice Field ◽  
Rice Yield ◽  
Water Layer ◽  
Meteorological Conditions ◽  
Rice Crop ◽  
Rice Paddies ◽  
Rice Plants ◽  
Irrigation Period

Abstract Studies on Akdala rice system found that rice plants sensitive to meteorological conditions. Climate change leads to changes in crop structure. The temperature of the rice field air and water has a special influence on the structure of the rice crop. It is established that the temperature of the water layer in rice paddies in the irrigation period does not exceeds 290 C, which is below the threshold of 350 C, when the flow and discharge of water from the paddies are recommended. The temperature of water in rice paddies, the surface layer was determined by an express thermometer, at the depth of the water layer 5, 10, 15 and 20 cm by Savin Thermometers, soil – thermometers TM-5.

scholarly journals Climate Change and Agricultural Adaptation in Indonesia

2016 ◽  
Vol 32 (2) ◽  
pp. 243
Author(s):  
Bevaola Kusumasari
Keyword(s):  
Climate Change ◽  
Agricultural Land ◽  
Agricultural Product ◽  
Management Technique ◽  
Crop Failure ◽  
Plant Pest ◽  
Local Practices ◽  
Cultivation Technique ◽  
The Difference ◽  
The Impact

This research strives to provide answers regarding adaptation patterns of farmers in confronting climate change in Indonesia. The method utilized for this research is a mixed method. Qualitative data was acquired through a series of focus group discussions and in-depth interviews with farmers and agricultural stakeholders in Gunung Kidul and Sleman, Indonesia. Additionally, the survey was carried out to 220 farmers in both research locations. The two research locations were chosen based on the difference in agricultural land. The findings of this research show that farmers understand climate change is occurring in their region and it influences their cultivation method. Farmers utilize their personal experiences as well as local practices in adapting to climate change. The impact most felt by farmers is crop failure and a decrease in quality and quantity of agricultural crops. The ensuing implication is that farmer’s income declines more and more. This research found that agricultural product cost increased by almost as much as 50%, whilst farmer’s income merely increased half of that, which is 25% since climate change has affected their farming. Responding to the matter, the strategy farmers employ is by changing the planting pattern, using soil cultivation technique, plant pest management technique, and watering/irrigation technique.

METHODS OF RENOVATION OF LOW-RISE RESIDENTIAL DEVELOPMENTS IN CONNECTION WITH LANDSCAPE RECULTIVATION (ON THE EXAMPLE OF ROSTOV REGION)

2019 ◽  
pp. 43-58
Author(s):  
Oksana Sadkovskaya
Keyword(s):  
Climate Change ◽  
Urban Planning ◽  
Water Balance ◽  
Urban Environment ◽  
Water Saving ◽  
Agricultural Landscapes ◽  
Urban Spaces ◽  
Urban Landscapes ◽  
Rostov Region ◽  
Planning Methods

One of major factors of deterioration in a microclimate of urban development in the conditions of the Rostov region, is degradation of landscapes owing to violation of water balance of the territory. In article the main reasons for violation of water balance which included natural features of the region, a consequence of anthropogenic influence, climatic changes, etc. are considered. Examples from the world practice of urban planning, which show the relevance and effectiveness of compensation for the effects of anthropogenic im-pacts and climate change using planning methods, are given. The experience of the United States, the Nether-lands, Canada and other countries that use water-saving technologies in planning is considered. The rela-tionship of urban planning and the formation of sustainable urban landscapes is shown. The integration of water-saving technologies into the urban environment can be a means of optimizing landscapes and a means of creating unique urban spaces. Reclamation of the urban landscape of low-rise buildings is a necessary step in creating a modern and comfortable urban environment in the conditions of the Rostov region. Meth-ods are proposed to compensate for negative changes in urban landscapes that can be applied at the stage of urban planning. As well as the proposed methods can be applied in the reconstruction of urban low-rise buildings. The considered methods concern not only urban landscapes, but also agricultural landscapes that surround small and medium-sized cities of the Rostov region. In article the author's concept of the organiza-tion of the low housing estate on a basis Urban- facies is submitted. Planning methods of regulation of water balance of the territory on the basis of models the ecological protective of landscapes are offered: an ecolog-ical core, an ecological corridor and an ecological barrier and also analogs from town-planning practice are considered. The reclamation of urban landscapes based on urban planning methods for regulating the water balance of the territory will allow creating unique urban spaces that are resistant to local climatic conditions and the possible consequences of climate change.

Assessment of climate change impacts on water balance and hydrological extremes in Bang Pakong-Prachin Buri river basin, Thailand

2020 ◽  
Vol 186 ◽  
pp. 109544 ◽  
Author(s):  
Thundorn Okwala ◽  
Sangam Shrestha ◽  
Suwas Ghimire ◽  
S. Mohanasundaram ◽  
Avishek Datta
Keyword(s):  
Climate Change ◽  
Water Balance ◽  
River Basin ◽  
Climate Change Impacts ◽  
Hydrological Extremes

Climate change, global change: What is the difference?

Eos ◽  
1988 ◽  
Vol 69 (25) ◽  
pp. 668
Author(s):  
S.I. Rasool
Keyword(s):  
Climate Change ◽  
Global Change ◽  
The Difference

Movement of Large Convective Rainstorms in Relation to Winds Aloft

1958 ◽  
Vol 39 (3) ◽  
pp. 129-136 ◽  
Author(s):  
C. W. Newton ◽  
Sey Katz
Keyword(s):  
Wind Speed ◽  
Wind Direction ◽  
Rainfall Data ◽  
Squall Lines ◽  
Hourly Rainfall ◽  
The Difference ◽  
Strong Winds

By means of hourly rainfall data from the Hydroclimatic Network, the motions of large rainstorms, of the kind associated with squall lines, are examined in relation to the winds aloft. Very little correlation is found between the speed of movement of the rainstorms and the wind speed at any level, although the fastest moving storms were associated with strong winds aloft. Significant correlation is found between direction of motion of rainstorms, and wind direction at 700 mb or higher levels. On the average, the rainstorms move with an appreciable component toward right of the wind direction. The difference between these results, and those from other studies based on small precipitation areas, is ascribed to propagation. The mechanism involved is discussed briefly.

The water balance of an arctic lake and its dependence on climate change: Tvillingvatnet in Ny-Ålesund, Svalbard

2002 ◽  
Vol 56 (2) ◽  
pp. 146-151 ◽  
Author(s):  
Sylvi Haldorsen ◽  
Michael Heim ◽  
Bernard Lefauconnier ◽  
Lars-Evan Pettersson ◽  
Morten Røros ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Balance ◽  
Arctic Lake
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