Department of Agricultural and Bioresource Engineering, 57 Campus Drive, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5A9, Canada; Centre for Hydrology, 117 Science Place, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5C8, Canada; Agriculture and Agri-Food Canada/Agriculture et Agroalimentaire Canada, 5403 1 Avenue South, Lethbridge, Alberta T1J 4B1, Canada; and Agriculture...

This study was aimed to identify optimal indicators for microtopography-oriented soil quality assessment. Twenty-two soil physicochemical and biological parameters were investigated at 93 sampling points in five different microtopographic units in semiarid regions of the Loess Plateau, where the principal functions of eroded agriculture soils are related to productivity and anti-erosion ability...

INTRODUCTION Brazil has a large semiarid region, which covers part of 9 states, over 20% of the 5565 municipalities in the country and at 22.5 million persons, 12% of the country's population. This region experiences recurrent and extended droughts and is characterized by low economic development, scarcity of natural resources including water, and difficult agricultural and livestock production...

[1] Groundwater is an important component of the hydrologic cycle, and its anomaly will result in variations of soil moisture, water, and energy balances between the land surface and atmosphere, which ultimately influence climate. In this study, we implement a groundwater model into the regional climate model RegCM3, which is called RegCM3_GW, and investigate the effects of water table dynamics...

Celtica gigantea(= Stipa gigantea) is a large perennial grass which grows in nutrient-poor sandy soils semiarid zones of the western Iberian Peninsula. The purpose this work was to find out if culturable fungal symbionts isolated from roots wild could have growth promoting activity tritordeum, hybrid cereal for human consumption. A survey fungi root endosphere C. gigantea produced an isolate co...

Sustainable agricultural production is mainly attributed to healthy soils. Calcareous soils, especially in arid and semiarid areas, suffer from low organic matter nutrient availability. Low could degrade soil with reducing the crop productivity. Thus, present study aimed assess integrated effect of mulch irrigation on activity, availability, potentiality corn yield under calcareous conditions. ...

Landfill covers are critical to waste containment, yet field performance of specific cover designs has not been well documented and seldom been compared in side-by-side testing. A study was conducted to assess the ability of landfill final covers to control percolation into underlying waste. Conventional covers employing resistive barriers as well as alternative covers relying on water-storage ...

The ongoing changes in vegetation spring phenology in temperate/cold regions are widely attributed to temperature. However, in arid/semiarid ecosystems, the correlation between spring temperature and phenology is much less clear. We test the hypothesis that precipitation plays an important role in the temperature dependency of phenology in arid/semiarid regions. We therefore investigated the in...