نتایج جستجو برای: yield and water scarcity

تعداد نتایج: 16942578  

2013
N. Hanasaki S. Fujimori T. Yamamoto S. Yoshikawa Y. Masaki Y. Hijioka M. Kainuma Y. Kanamori T. Masui K. Takahashi

A global water scarcity assessment for the 21st century was conducted under the latest socio-economic scenario for global change studies, namely Shared Socioeconomic Pathways (SSPs). SSPs depict five global situations with substantially different socio-economic conditions. In the accompanying paper, a water use scenario compatible with the SSPs was developed. This scenario considers not only qu...

Hydrological components in a river basin can get adversely affected by climate change in coming future. Manipur River basin lies in the extreme northeast region of India nestled in the lesser Himalayan ranges and it is under severe pressure from anthropogenic and natural factors. Basin is un-gauged as it lies in remote location and suffering from large data scarcity. This paper explores the imp...

2016
M. Kummu J. H. A. Guillaume H. de Moel S. Eisner M. Flörke M. Porkka S. Siebert T. I. E. Veldkamp P. J. Ward

Water scarcity is a rapidly growing concern around the globe, but little is known about how it has developed over time. This study provides a first assessment of continuous sub-national trajectories of blue water consumption, renewable freshwater availability, and water scarcity for the entire 20th century. Water scarcity is analysed using the fundamental concepts of shortage (impacts due to lo...

Journal: :نشریه علمی - پژوهشی هیدرولوژی کاربردی 0
fatemeh karandish zabol university

fresh water scarcity has become a global problem which needs a serious attempt to find proper solutions for decreasing the pressure on the limited water resources. the exact estimation of crop virtual water would help with choosing crops with high crop and water productivity which lead to both food and water security. thus, in this research, maize virtual water was estimated using hydrus2d base...

Journal: :Journal of International Economic Law 2014

The ever-increasing problem of water scarcity in arid and semi-arid regions of Iran has necessitated the demand to replacement of sugar beet plantation by more water-use efficient plants. Sweet sorghum is one of the sugars plants with low water requirements that potentiates cost-effective sugar production in different regions. However, physiological aspects of sugar yield in this plant is not c...

Soil conservation is the only known way to protect the productive land. In country like Ethiopia, where droughts and floods cause food scarcity problem, soil and water conservation not only increases crop yield, but also prevents further deterioration of land. Soil and water conservation preserve soil moisture and drain water sustainably to avoid soil erosion and depletion of soil nutrients. So...

Journal: :Environmental science & technology 2014
Kuishuang Feng Klaus Hubacek Stephan Pfister Yang Yu Laixiang Sun

Water footprints and virtual water flows have been promoted as important indicators to characterize human-induced water consumption. However, environmental impacts associated with water consumption are largely neglected in these analyses. Incorporating water scarcity into water consumption allows better understanding of what is causing water scarcity and which regions are suffering from it. In ...

2010
Els Lecoutere Ben D’Exelle Bjorn Van Campenhout

Does water scarcity induce conflict? And who would engage in a water scarcity conflict? In this paper we look for evidence of the relation between water scarcity and conflictive behavior. With a framed field experiment conducted with smallholder irrigators from semi-arid Tanzania that replicates appropriation from an occasionally scarce common water flow we assess what type of water users is mo...

Journal: :journal of agricultural science and technology 2014
i. f. garcia tejero v. h. duran zuazo r. perez-alvarez a. hernandez s. casano

within the context of climate change, water scarcity is the major constraint to the viability of many crops. thus, it is necessary to develop strategies for sustainable water management, and introduce alternative crops to sustain the viability of agro-ecosystems. the main objective of this work was to assess the performance of hemp (cannabis sativa l.) subjected to different plant densities and...

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