in this study, a landrace melon zarde jalali as the scion and commercial varieties of cucurbita rootstocks cv., shintozwa and ferro-rz was used as the rootstock. grafted plants upon commercial varieties of cucurbita with own-rooted and ungrafted at three irrigation levels of 60, 80 and 100% (respectively 4984.32, 6124.82 and 7239.41 m3ha-1) based on total available water depletion with drip irr...

The revised universal soil loss equation (RUSLE), the sediment delivery distributed (SEDD) model, and ArcView GIS were used to estimate the impacts of no-till practice on soil erosion and sediment yield in Pataha Creek Watershed, a typical dryland agricultural watershed in southeastern Washington. The results showed that the average cell soil loss decreased from 11.09 to 3.10 t/ha yr for the wh...

_____________________________ Introduction. ___________________________ Scope of work and available information,... Theory of sediment yield and transport__. Fine sediment.______________________ Splash, sheet, and rill erosion____ Environmental factors__ _ _______ Coarse sediment.____________________ Effect of velocity.__---__________ Effect of particle size_____________ Storm characteristics._...

Examples of sediment budgets are needed to document the range budget types and their controls. Sediment for three small agricultural catchments (7.6 15.6 km2) in southwestern Australia dominated by channel gully erosion, with sheet rill erosion playing a subordinate role. Erosion was increased clearing naturally swampy valley floors hillslopes agriculture grazing, episodic intense rainstorms. T...

Incremental learning of classi cation rules from data streams with concept drift is considered. We introduce a new algorithm RILL, which induces rules and single instances, uses bottom-up rule generalization based on nearest rules, and performs intensive pruning of the obtained rule set. Its experimental evaluation shows that it achieves better classi cation accuracy and memory usage than the r...

This paper contributes to the theory of substructural logics .that are of interest to categorial grammarians. Combining semantic ideas of Hepple [1990] and Mor-rill [1990], proof-theoretic ideas of Venema [1993b; 1993a] and the theory of equational specifications, a class of resource-preserving logics is defined, for which decidability and completeness theorems are established.

We introduce a new model for rill erosion. We start with a network similar to that in the Discrete Web** and instantiate a dynamics which makes the process highly non-Markovian. The behavior of nodes in the streams is similar to the behavior of Polya urns with time-dependent input. In this paper we use a combination of rigorous arguments and simulation results.