A CLIMATIC MOISTURE INDEX FOR LAND AND SOIL CLASSIFICATION IN CANADA

1970 ◽  
Vol 50 (3) ◽  
pp. 291-301 ◽  
Author(s):  
W. K. SLY

Recent advances in the application of computer techniques for determining irrigation requirements from climatic data have made possible the development of a climatic moisture index to supplement conventional methods used in land and soil classification. The index approximates the ability of precipitation to provide the water required by annual crops if their production is not limited by water stress. Standardization of the non-climatic variables involved in its determination does not unduly restrict the range of soil textures and spring soil water conditions to which it applies. The values of the index in the various climatic regimes across the country are shown and their use in providing supplemental information for land and soil classification is indicated.

1968 ◽  
Vol 48 (2) ◽  
pp. 129-137 ◽  
Author(s):  
A. R. Maurer ◽  
H. F. Fletcher ◽  
D. P. Ormrod

Pea plants growing in "weighing lysimeters" were subjected to five soil-water regimes to determine their response to varying conditions of soil water imposed at different stages of development. Plants subjected to a minimal water stress developed luxuriantly and continued to grow up to the harvest period. Pea yield and plant height were not reduced, but fresh weight and dry matter were less if irrigation was applied when soil water fell to 60% rather than 88% of that available. A severe water stress after blossom reduced pea yield, irrespective of soil-water conditions prior to blossom. Plants which had been given ample soil water before blossom wilted visibly when a severe stress was imposed in the post-blossom period, yet wilting did not occur in plants subjected to severe water stress both before and after blossom. Severe water stress prior to blossom did not cause a decrease in pea yield if ample soil moisture was made available after blossom.


Author(s):  
Марек Дохойда ◽  
Йоанна Вітковска-Добрев

У роботі представлений перелік проблем, що супроводжують будівельні об'єкти великої площі, в тому числі й підземні гаражі. Здійснено технічний аналіз окремих проблем, що виникають в таких будівлях під час їх експлуатації. Проектування, а пізніше і будівництво підземних гаражів найчастіше, пов'язане з вирішеням складних інженерних питань. Згідно з ними до найпоширеніших конструкційних недоліків у підземних гаражах віднесні: тріщини нижньої плити, порушення поверхових перекриттів, невластиве кручення бетону, відсутність дилатації або також помилково прийняті ґрунтово-водні умови.The paper concerns complex engineering challenges associated with multi-storey underground car parks. An analysis of selected issues in underground garages during the exploitation was performed. The design and implementation of structures of which function are underground garages is most often associated with serious engineering challenges. For structural reasons frequently occurring faults in garages may include fracture of the bottom slab and intermediate floors resulting from improper design of reinforcement, concrete shrinkage, lack of expansion joints or incorrectly adopted soil-water conditions.


2020 ◽  
Vol 248 ◽  
pp. 107718 ◽  
Author(s):  
Li Zhang ◽  
Minfei Yan ◽  
Hongbing Li ◽  
Yuanyuan Ren ◽  
Kadambot HM Siddique ◽  
...  

2011 ◽  
Vol 5 ◽  
pp. 93-97 ◽  
Author(s):  
Mie Miyahara ◽  
Chisato Takenaka ◽  
Rie Tomioka ◽  
Takeshi Ohta

2013 ◽  
Vol 373 (1-2) ◽  
pp. 77-87 ◽  
Author(s):  
J. M. Torres-Ruiz ◽  
A. Diaz-Espejo ◽  
A. Morales-Sillero ◽  
M. J. Martín-Palomo ◽  
S. Mayr ◽  
...  

2018 ◽  
Vol 43 (3) ◽  
pp. 499-508 ◽  
Author(s):  
Yuta INOUE ◽  
KENZO Tanaka ◽  
Shigenobu TAMAI ◽  
Fukuju YAMAMOTO ◽  
Norikazu YAMANAKA ◽  
...  

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