Calibration and validation of the stics crop model for managing wheat irrigation in the Semi-arid Marrakech al Haouz Plain
Joint Authors
Khabba, Said
Lahrouni, Abd al-Rahman
Duchemin, Benoit
Chihbouni, Abd al-Ghani
Carriou, Julien
Ouzine, Lhoucine
Hadaria, Rashid
Source
The Arabian Journal for Science and Engineering. Section C, Theme issues
Issue
Vol. 32, Issue 1C(s) (30 Jun. 2007), pp.87-101, 15 p.
Publisher
King Fahd University of Petroleum and Minerals
Publication Date
2007-06-30
Country of Publication
Saudi Arabia
No. of Pages
15
Main Subjects
Topics
Abstract AR
يتناول الجزء الأول من البحث معايرة نموذج STICS، و بيان صلاحية مراحل محصول القمح (الحبوب و التبن) في تلك المعايرة تحت الظروف المناخية للمملكة الغربية.
و لتحقيق ذلك استعملت مدخلات النمو لمحصول القمح تحت الري في منطقة الحوز ذات المناخ شبه الجاف بمراكش. و قد اعتمدت المعايرة على المدة الحرارية للمراحل الأربع التي تتحكم في مساحة الأوراق، و كذلك المدة الحرارية بين الإنبات و بداية امتلاء الحب.
و قد تمت المعايرة باستعمال بيانات من ثلاثة حقول قمح زرعت خلال موسم 2002 – 2003م.
كما تم التحقق من صلاحية النموذج باستعمال بيانات من ستة حقول زرعت خلال موسم 2003 – 2004م. و بينت النتائج ملائمة عالية للنموذج STICS عند استخدام تلك المدخلات كما بينت النتائج أن النباتات قد تأثرت سلبا نتيجة لنقص النيتروجين. و بين الجزء الثاني من البحث إمكانية استعمال النموذج STICS في حقول جدولة الري عند افتراض عدم محدودية النيتروجين، آخذا بالاعتبار الحد الحرج للعطش.
كما أظهرت النتائج علاقة بدرجة مقبولة بين المحصول من جهة و كمية ماء الري و برمجة الري من جهة أخرى.
و تبين أن محصول عام 2003 – 2004 يمكن الحصول عليه بترشيد الري الحسب النموذج، و ذلك بكمية من ماء الري تقل بمقدار 70 ملم و 40 ملم على التوالي عند الحرث المبكر و المتأخر.
Abstract EN
In the first part of this work, the shoot growth module and grain yield of the STICS crop model were calibrated and validated by using field data which was collected from irrigated winter wheat fields in the Haouz plain near Marrakech.
The calibration was performed on the thermal units between the four phenological stages that control the dynamics of leaf area index and the thermal unit between emergence and the beginning of grain filling.
The plant phenology was calibrated for three fields monitored during the 2002/03 season.
Evaluation of the grain yields and the temporal evolution of leaf area index were done for six validation fields during 2003/04.
The results showed the significant accuracy of the model in simulating these variables, and also indicated that the plants mainly suffered from lack of nitrogen.
The results in the second part show the potential of crop modeling to schedule irrigation water, on the assumption that the plants were growing under optimal conditions of fertilization.
In this case, the model was used to manage the time of irrigation according to a threshold for water deficit.
Various simulations displayed logical trends in the relationship between the grain yield and both the amount and timing of irrigation water.
These results were finally compared with those obtained from real irrigation practices.
For the particular climate of 2003/04, the comparison showed that 70 mm and 40 mm of water could be saved in case of early and late sowing, respectively.
American Psychological Association (APA)
Hadaria, Rashid& Khabba, Said& Lahrouni, Abd al-Rahman& Duchemin, Benoit& Chihbouni, Abd al-Ghani& Carriou, Julien…[et al.]. 2007. Calibration and validation of the stics crop model for managing wheat irrigation in the Semi-arid Marrakech al Haouz Plain. The Arabian Journal for Science and Engineering. Section C, Theme issues،Vol. 32, no. 1C(s), pp.87-101.
https://search.emarefa.net/detail/BIM-346745
Modern Language Association (MLA)
Hadaria, Rashid…[et al.]. Calibration and validation of the stics crop model for managing wheat irrigation in the Semi-arid Marrakech al Haouz Plain. The Arabian Journal for Science and Engineering. Section C, Theme issues Vol. 32, no. 1C (Jun. 2007), pp.87-101.
https://search.emarefa.net/detail/BIM-346745
American Medical Association (AMA)
Hadaria, Rashid& Khabba, Said& Lahrouni, Abd al-Rahman& Duchemin, Benoit& Chihbouni, Abd al-Ghani& Carriou, Julien…[et al.]. Calibration and validation of the stics crop model for managing wheat irrigation in the Semi-arid Marrakech al Haouz Plain. The Arabian Journal for Science and Engineering. Section C, Theme issues. 2007. Vol. 32, no. 1C(s), pp.87-101.
https://search.emarefa.net/detail/BIM-346745
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 100-101
Record ID
BIM-346745