ated with soil type, vadose zone flow and transport processes are also affected by such external factors as tillage Vadose zone flow and transport processes are known to be strongly practices. For example, Petersen et al. (1999, 2001) affected by both soil structure and soil texture. We conducted a field experiment to explore the impact of heterogeneity in soil structure showed that surface til...

in this research using gis effect of land management and soil criteria with eight indicators to study the sensitivity to the desert lands of the region of sistan jazinak creation is evaluated. vote based on the model parameters wilderness - the latest creation esas evaluation method wilderness creation and in most european countries and the middle east is used, took place. using the above metho...

to evaluate the effect of soil solarization on common lambsquarters control (chenopodium album l.), an experiment was conducted at the research farm of college of agriculture, university of birjand.the factorial experiment was performed as a randomized complete block design with three factors including the number of clear plastic layers (uncovered as the control, 1-layer and 2 –layer plastic sh...

Northern Hemisphere permafrost affected land ar­ eas contain abont twice as mnch carbon as the global at­ mosphere. This vast carbon pool is vnlnerable to acceler­ ated losses throngh mobilization and decomposition nnder projected global warming. Satellite data records sparming the past 3 decades indicate widespread redactions ( ~ 0.81.3 days decade “ ̂ ) in the mean aimnal snow cover extent and...

Recent studies have shown that a variety of remote sensing techniques may be used for the estimation of soil moisture over large areas. The shallow moisture sensing depth of passive microwave measurements, however, limits the use of remotely sensed soil moisture for many land–atmosphere interaction studies. In this study, a method is proposed for soil moisture profile estimation by sequential a...

Northern Hemisphere permafrost affected land areas contain about twice as much carbon as the global atmosphere. This vast carbon pool is vulnerable to accelerated losses through mobilization and decomposition under projected global warming. Satellite data records spanning the past 3 decades indicate widespread reductions (∼ 0.8– 1.3 days decade) in the mean annual snow cover extent and frozen-s...

Using four groups of survey data of soil moisture of winter wheat from returning green stage to harvest stage in Daxing region, the variation laws of soil moisture exponential depletion relations in 0-60cm depths during different growth stage are analyzed ,and based on soil moisture exponential depletion relations the forecast model of soil moisture depletion is built. The results indicate that...

during the croatian homeland war in 1991, the capacitor batteries of the zadar electric powersubstation (ts 110/35 kv) were damaged, resulting in the severe pollution of the soil with polychlorinatedbiphenyls (pcbs). due to porosity of karstic soil pcbs represent great environmental and human health risksthat need some action. the polluted soil was collected and an experimental field was formed...

We investigated a method to quantify field-state wheat RSA in a phenotyping way, depicting the 3D topology of wheat RSA in 14d periods. The phenotyping procedure, proposed for understanding the spatio-temporal variations of root-soil interaction and the RSA dynamics in the field, is realized with a set of indices of mm scale precision, illustrating the gradients of both wheat root angle and elo...