نتایج جستجو برای: flood irrigation

تعداد نتایج: 65289  

2009
R. J. Smith J. N. Baillie

Although the term precision irrigation is now quite widely used, often to mean drip irrigation, there is no commonly accepted definition or conceptualisation of the term, and no cohesive framework to guide research, development or adoption. This paper is reporting on a review of precision irrigation funded by NPSI. This review is considering the role of current irrigation application technologi...

Journal: :South sustainability 2023

Future rice production problems are related to global warming and water scarcity due climate change. For efficient sustainable production, flood irrigation management high nitrogen applications must be modified. Among the main recommendations include incorporation of fertilizer at critical stages crop, use direct seeding in dry soil instead transplanting method. This manuscript brings together ...

2012
CHEN Xiao-hong WANG

Wujiang River, one of the main branches of the Beijiang River in South China, is frequently suffered from flood disasters. Flood clustering becomes one of the critical sub-issues for realizing the different types of flood features. This paper attempts to put forward a flood clustering approach for flood feature identification which is important to the flood risk management and flood forecasting...

2007
HONGMING HE JIE ZHOU QIAN YU YONG Q. TIAN ROBERT F. CHEN

Floods cause environmental hazards and influence on socio-economic activities. In this study, we evaluated the historic flood frequency at a confluence in the middle Yellow River, China. A non-parametric, multivariate, empirical, orthogonal function matrix model, which consists of time correlation coefficients of flood discharge at different gauge stations and flood events was used for the anal...

2005
Frank Messner Volker Meyer Jochen Schanze Evzen Zeman Jiri Marsalek

The current state-of-the-art in flood damage analysis mainly focuses on the economic evaluation of tangible flood effects. It is contended in this discussion paper that important economic, social and ecological aspects of flood-related vulnerabilities are neglected. It is a challenge for flood research to develop a wider perspective for flood damage evaluation.

2012
Philippe Crochet

The goal of this study is to develop an objective methodology for estimating design floods, i.e. the flood peak discharge with return period T , at ungauged river catchments in Iceland. First, a regional flood frequency analysis is presented for estimating the T -year flood peak discharge with fixed duration D, Q(T,D), for poorly gauged and ungauged catchments. This is done by scaling a regiona...

2007
RICHARD M. DAVIDSON

The purpose of this article is to examine major interrelated issues that are present in current discussions about the biblical Flood narrative of Gen 6-9. These include such questions as: the unity and literary genre of these chapters, the nature and extent of the biblical Flood, the relationship between history and theology in the Flood narrative, and the relationship of the biblical Flood nar...

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