[PDF] Top 20 Factors Affecting Furrow Erosion

... that the reductions in sediment load of the runoff during the third and fourth irrigations (frig. 4) resulted from increases in initial soil water content which increased stability of ag[r] ... See full document

... dental erosion occurs most frequently on the palatal margin of the maxillary teeth as well as on the mandibular molar occlusal surfaces, where it is particularly ...dental erosion [15]. As vomitus passes ... See full document

... Field responses to specific PAM treatments also varied among irrigations, especially at application rates less than 0.7 kg he. A number of factors potentially influence PAM efficacy in a[r] ... See full document

... rivers erosion is influenced by se- dimentary load transportation of upstream, the plant coverage and tectonic and geological phenomena to analyze the eroding pattern in rivers’ sedimentation and its effects [3] ... See full document

... Significant erosion reduces crop productivity in fields and degrades water quality of receiving water ...of furrow irrigation (Carter et ...from furrow irrigated hops on a ...in furrow ... See full document

... • Factors affecting a aggravation of soil erosion • Various means of soil erovion and their effect • Measuring soil erosion • Improper land use • Improper crop cultivation methods and cr[r] ... See full document

... If the erosion process is most important, then the upstream conditions of slope, flow rate, furrow length, and soil erodibility are critical factors.. If the transport capacity limits tr[r] ... See full document

... The stream size needed depends upon the soil infiltration rate, the run length, the furrow slope and factors such as roughness and residue that dissipate energy of flowing water and slow[r] ... See full document

... supply factors have raised natural gas prices, resulting in a 30% increase in the cost of PAM and related poly‐ mers, generating concern for future availability and affordabil‐ ity of PAM for irrigated ...cost ... See full document

... are orientated down slope, without any runoff control effect. A detailed view of a typical stone hedgerow is provided in Figure 2. These hedgerow forms are effective obstacles to the overland flow, offering high water ... See full document

... Loose grain straw placed by hand in furrows, on several different sloping plot studies, slowed the water that in turn reduced erosion and sediments by as high as 71% while at the same ti[r] ... See full document

... Recent field studies have demonstrated that small concentra- tions of polymers dissolved in irrigation water appreciably reduce soil loss from irrigated furrows and increase net infil- t[r] ... See full document

... Lentz and Sojka (1994) demonstrated that applying 10 mg PAM L- 1 water (i.e., 10 ppm) during the first 2 h (during advance) of the irrigation reduced sediment loss from treated furrows b[r] ... See full document

... Figure 1—WEPP-predicted versus measured runoff, infiltration, and soil loss for the upper quarter of the study 1 corn and bean fields used for WEPP-parameter calibration.. 1736 TRANSACTI[r] ... See full document

... is greatly facilitated with the aid of computational software. Several programs have been developed at Kimberly, Idaho, that compute infiltration, runoff and sedi- ment loss from the fol[r] ... See full document

... A study in 1986 and 1987 observed the effect of narrow rows or twin rows with plants in close proximity to the furrow on infiltration, sediment loss, and yields in three crops grown unde[r] ... See full document

... The relative effectiveness of zone subsoiling at increasing infiltration and reducing sediment loss was greater in 1990 when the study was conducted on a field with a greater slope than [r] ... See full document

... Furrow irrigation- induced erosion in the PNW commonly removes 2-20 tons per acre of soil per year, with much of the erosion (3-8x the field averaged rate) occurring near the upper end o[r] ... See full document

... soil erosion and runoff. Owing to soil and water erosion is very serious in hilly area of Heilongjiang province, soil conservation is very ...soil erosion, literature researches more concentrated to ... See full document

... Individual irrigation and seasonal sediment losses have been measured on more than 100 furrow irrigated fields over the preceding 20 years in attempts to relate furrow slope, furrow stre[r] ... See full document