the management of sedimentation problems in rivers and reservoirs depend greatly on the sediment yield from the catchment land surface. in this research the effects of biological measures and ranges enclose on suspended load in two sub-catchments of kakhk experimentalwatershed in gonabad has been studied. this catchment contains both control and experimental sub-catchments. these sub-catchments...

p omegranate is one of the most important economic products in the agricultural sector in Sistan region. This region due to dry weather, very low rainfall and frequent droughts and lack of resources for agriculture faces many problems. Hence, one way to increase agricultural production is to increase efficiency, So that it can help the economy of the region. In this regard, in this study, ...

The development of catchment modelling tools has gained considerable momentum through the Cooperative Research Centre for Catchment Hydrology’s Catchment Modelling Toolkit. This repository of models (see www.toolkit.net.au) allows the modeller to select the most appropriate tools with which to best represent their catchment and associated constituent processes. While this has improved the abili...

One of the obstacles that has caused agricultural sector not to reach significant and expected growth is shortage of short, medium and long–term funds to finance various activities of this sector. This study aims at investigating the economic impacts of credits granted by Agricultural bank on farmers on Hirmand region. The statistical population of the survey included 4691 farmers of Hirmand re...

abstract a field experiment was conducted to study the competitiveness of wheat cultivars against bromus japonicus at sistan agricultural research station during 2003. the experimental design was a randomized complete block assigned in factorial arrangement of treatments with four replications. six wheat cultivars comprised two natives (old cultivars; boulani and kalak-afghni), and four new-rel...

Water quality data, collected by the Environment Agency in England and Wales over 10 years (1991 – 2000) were used to examine the spatial distribution of nutrient pollution risk and for assessing broad-scale spatial and temporal variability in nutrient fluxes across the Wye catchment. Nutrient water quality across the upper and middle Wye catchment, and along the main River Wye, is generally ve...

samanoo is a traditional iranian dessert that has a high nutritional value. its consumption is on the rise.samanoo is made using a mixture of wheat sprout extract (wheat malt) and whole wheat flour. it is mainlyprepared at home or at in small businesses and there is no standard method of preparation. this studyinvestigates the effects of wheat cultivar (hirmand and tabasi) and the ratio of whea...

Pangyo experimental catchment is located in Unjung Stream, which is the second tributary of the Tan River, the first tributary of the Han River, as well as Geumto Stream, which is a tributary of Unjung Stream. The area of the entire catchment is 23.1 km, with the Geumto Stream catchment spanning 9.84 km and the Unjung Stream catchment 13.26 km. Four ultrasonic stream gauges, one water level gau...

A new approach to regionalisation for prediction of flow characteristics in ungauged catchments is presented. If flows in ungauged catchments are to be predicted using calibrated rainfall-runoff models, regional relationships between the parameters of such models and catchment attributes must be determined. This is only possible with parsimonious models (fewer than about 7 parameters), and even...