Actual crop water use in project countries a synthesis at the regional level

Abstract

The Policy Research Working Paper Series disseminates the findings of work in progress to encourage the exchange of ideas about development issues. An objective of the series is to get the findings out quickly, even if the presentations are less than fully polished. The papers carry the names of the authors and should be cited accordingly. The findings, interpretations, and conclusions expressed in this paper are entirely those of the authors. They do not necessarily represent the views of the International Bank for Reconstruction and Development/World Bank and its affiliated organizations, or those of the Executive Directors of the World Bank or the governments they represent.

Long-Term Perspective Changes in Crop Irrigation Requirement Caused by Climate and Agriculture Land Use Changes in Rechna Doab, Pakistan

“…CROPWAT developed by FAO (Food and Agriculture Organization) is a better tool to simulate crop irrigation demand in the changing climate [25]. CROPWAT has generally been applied in numerous research studies to compute crop irrigation requirement (CIR) and irrigation scheduling in different countries i.e., Taiwan, Greece, United State, Zimbabwe, Africa, Morocco, Turkey, and Pakistan [38][39][40][41][42][43][44][45][46][47][48]. Aims and objectives of this study were to: (1) To detect long-term trends and changes in climatic parameters (maximum temperature (T max ), minimum temperature (T min ), precipitation, humidity, and wind speed); (2) to analyze the long-term changes in agriculture cropping patterns based on crop sown area; and (3) to investigate the implications of climate and agriculture land use variability on total crop irrigation requirement.…”

Applying the SIMPLE Crop Model to Assess Soybean (Glicine max. (L.) Merr.) Biomass and Yield in Tropical Climate Variation

“…20 [7] MaxT Threshold for daily Tmax to start accelerating senescence due to heat stress ( • C). 40 [33] ExtremeT Daily Tmax threshold when RUE becomes 0 due to heat stress ( • C). 25-40 [33] CO 2 _RUE Relative increase in RUE per 1 ppm elevated CO 2 above 350 ppm.…”

“…40 [33] ExtremeT Daily Tmax threshold when RUE becomes 0 due to heat stress ( • C). 25-40 [33] CO 2 _RUE Relative increase in RUE per 1 ppm elevated CO 2 above 350 ppm. 350-600 [7] S_Water Sensitivity of RUE to drought stress (ARID index).…”