Effects of shallow water table on capillary contribution, evapotranspiration, and crop coefficient of maize and winter wheat in a semi-arid region
作者： Shaozhong Kang , Fucang Zhang , Xiaotao Hu , Peter Jerie , Lu Zhang
DOI: 10.1071/AR99177
关键词:
摘要: A lysimeter experiment was conducted during 19866—96 to study the impacts of groundwater tables on capillary contribution, evapotranspiration, and crop coefficient maize winter wheat grown in a semi-arid region loess loam soils. The depth table set 0.5, 0.8, 1.0, 1.2, 1.5, 2.0, 2.50 m, respectively. results showed that rate contribution from root-zone influenced mainly by water tables. daily variation not same as pan evaporation; peak delayed when >0.8 time delay increased with table. evapotranspiration decreased increasing early growth period harvest period. maximum occurred at 1.2 m other periods. Values coefficients (K c ) were estimated based measured (ET) reference ET computed modified Penman method. K significantly different values used absence effects, it varied markedly Relationships between developed using mean derived multi-year data. It found linear model better for Octobermp;mdash;February growing season June summer season. polynomial suitable March;mdahs;June July October
sci-hub.se 参考文章(11)
Richard G. Allen, Dirk Raes, Martin Smith, Luis S. Pereira, Crop evapotranspiration : guidelines for computing crop water requirements FAO Irrigation and Drainage Paper (FAO). ,(1998)
James L. Wright, New Evapotranspiration Crop Coefficients Journal of the Irrigation and Drainage Division. ,vol. 108, pp. 57- 74 ,(1982) , 10.1061/JRCEA4.0001372
W.O. Pruitt, J. Doorenbos, Guidelines for predicting crop water requirements ,(1977)
L. Zhang, W.R. Dawes, P.G. Slavich, W.S. Meyer, P.J. Thorburn, D.J. Smith, G.R. Walker, Growth and ground water uptake responses of lucerne to changes in groundwater levels and salinity: lysimeter, isotope and modelling studies Agricultural Water Management. ,vol. 39, pp. 265- 282 ,(1999) , 10.1016/S0378-3774(98)00082-1
L. C. Benz, E. J. Doering, G. A. Reichman, Watertable Management Saves Water and Energy Transactions of the ASABE. ,vol. 24, pp. 995- 1001 ,(1981) , 10.13031/2013.34380
Sun F. Shih, Ke S. Cheng, Evapotranspiration Estimation for Data‐Short Environment Journal of Irrigation and Drainage Engineering. ,vol. 117, pp. 107- 122 ,(1991) , 10.1061/(ASCE)0733-9437(1991)117:1(107)
Salisu Abdulmumin, Steven M. Misari, Crop coefficients of some major crops of the Nigerian semi-arid tropics Agricultural Water Management. ,vol. 18, pp. 159- 171 ,(1990) , 10.1016/0378-3774(90)90028-W
J.E. Ayars, R.B. Hutmacher, Crop coefficients for irrigating cotton in the presence of groundwater Irrigation Science. ,vol. 15, pp. 45- 52 ,(1994) , 10.1007/BF00187794
N Michelakis, E Vougioucalou, G Clapaki, Water use, wetted soil volume, root distribution and yield of avocado under drip irrigation Agricultural Water Management. ,vol. 24, pp. 119- 131 ,(1993) , 10.1016/0378-3774(93)90003-S
C. W. Robbins, L. S. Willardson, An Instrumented Lysimeter System for Monitoring Salt and Water Movement Transactions of the ASABE. ,vol. 23, pp. 109- 111 ,(1980) , 10.13031/2013.34534