Preliminary study on simulation of climate change impacts on rice yield using DSSAT 4.5 at Tanjung Karang, Selangor

A. T. Shaidatul Azdawiyah, Sahibin @ Sahibini Abd Rahim, I. Anizan

Research output: Contribution to journalArticle

Abstract

Weather plays a very important role in determining crop yields. There is a strong relationship between climate and crops. The growth requirements are different for every crop throughout the whole plant development process. Each crop and crop variety has specific climatic tolerances and optimal conditions. The objectives of this study were to determine the physico-chemical characteristics of soils for rice cultivation and the effects of climate towards rice yield through simulation using Decision Support System for Agro-technology Transfer ver 4.5 (DSSAT4.5). This study was carried out in Tanjung Karang, Selangor. Four plots with the size of 5 m x 5 m were planted with MR 219 seedlings. Three soil samples were taken from each plot at a depth of 0-20 cm for the upper layer and 20-40 cm for the second layer before planting activities. Physico-chemical characteristic of these soils such as particle size distribution, organic matter, bulk and true density, pH, electrical conductivity, cation exchange capacity and organic carbon contents were determined according to the standard methods. The soil texture in this area was silty clay for the upper layer and clay for the second layer. The percentage of soil organic matter was high at about 9.0% to 11.8%. Soil bulk density was in the range of 1.37 g cm-3 to 1.41 g cm-3, whereas the true density was between 2.5 g cm-3 and 2.75 g cm-3. Soil of this area was slightly acidic with pH value of about 5 to 6. Electrical conductivity recorded ranged from 2.13 mS cm-1 to 2.60 mS cm-1, whereas cation exchange capacity was between 13.5 meq/100 g to 15.5 meq/ 100 g. Percentage of organic carbon was higher in the upper layer at 2.07-2.74% than in the second layer at 1.25-1.73%. To obtain the yield, ten matured rice plants were randomly selected and harvested. Yield recorded was 5.75 tons ha-1 and the weight of 1000 grains was 24.8 g. Yield simulation by using DSSAT 4.5 crop simulation model, indicated that yield was projected to decrease slightly as the daily solar radiation and rainfall decreased, and slightly increased as the temperature increased.

Original languageEnglish
Pages (from-to)81-89
Number of pages9
JournalMalaysian Applied Biology
Volume43
Issue number1
Publication statusPublished - 2014

Fingerprint

Climate Change
Soil
climate change
rice
cation exchange capacity
electrical conductivity
Electric Conductivity
soil organic matter
crops
clay
Climate
climate
soil
Cations
rice soils
carbon
Carbon
crop models
decision support systems
particle size distribution

Keywords

  • Climate change impacts
  • DSSAT 4.5
  • Rice yield
  • Selangor
  • Simulation

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)

Cite this

Preliminary study on simulation of climate change impacts on rice yield using DSSAT 4.5 at Tanjung Karang, Selangor. / Shaidatul Azdawiyah, A. T.; Abd Rahim, Sahibin @ Sahibini; Anizan, I.

In: Malaysian Applied Biology, Vol. 43, No. 1, 2014, p. 81-89.

Research output: Contribution to journalArticle

Shaidatul Azdawiyah, A. T. ; Abd Rahim, Sahibin @ Sahibini ; Anizan, I. / Preliminary study on simulation of climate change impacts on rice yield using DSSAT 4.5 at Tanjung Karang, Selangor. In: Malaysian Applied Biology. 2014 ; Vol. 43, No. 1. pp. 81-89.
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