Your search found 32 records
1 Yamamoto, T.; Naruoka, M.; Ito, S.; Yang, Z; Zhang, J.. 1993. Irrigation schedules and conservation management for a pilot farm in the Mu Us Shamo Desert: Control of desertification and development of agriculture in arid land areas in China. Journal of Irrigation Engineering and Rural Planning, 25:4-15.
(Location: IWMI-HQ Call no: PER Record No: H013428)
As part of the joint research conducted by Japan and China on the agricultural development of the Mu Us Shamo Desert, surveys on soil physical properties, moisture consumption, and the irrigation effect have been carried out on several plants in the fields of the Mu US Shamo Research Center since 1985. Using these results, schedules were established for the irrigation of a pilot farm which was constructed at the Research Center in 1991. The irrigation schedules were mainly based on the design guidelines of the Ministry of Agriculture, Forestry and Fisheries of Japan. As a result, the dimensions for the irrigation interval and water quantity per irrigation unit were estimated under the various plants in the pilot farm. From these design dimensions and the daily rainfall measured during the past 27 years, the net water requirement was estimated considering the effective rainfall. Also, the characteristics of the irrigation and rainfall could be explained by discussing the ratio of the total net water requirement to the total evapotranspiration, which subsequently indicates the factors in the pilot farm's future water management. Finally, in order to prevent the salinization of soils and groundwater and to select suitable irrigation methods, some recommendations are given for better use of technology in conservation management for the pilot farm.
2 Negahban, B.; Moss, C. B.; Jones, J. W.; Zhang, J.; Boggess, W. G.; Campbell, K. L. 1996. Integrating optimization into a regional planning model using GIS. In Pigram, J. J. (Ed.), Security and sustainability in a mature water economy: A global perspective: Water and Resource Economics Consortium, proceedings of an international workshop, University of Melbourne, February 1996. Armidale, NSW, Australia: University of New England. Centre for Water Policy Research. pp.347-361.
(Location: IWMI-HQ Call no: 333.91 G000 PIG Record No: H020175)
3 Kang, S.; Liang, Z.; Hu, W.; Zhang, J.. 1998. Water use efficiency of controlled alternate irrigation on root-divided maize plants. Agricultural Water Management, 38(1):69-76.
(Location: IWMI-HQ Call no: PER Record No: H023390)
(Location: IWMI-HQ Call no: P 5383 Record No: H025655)
(Location: IWMI-HQ Call no: PER Record No: H026784)
(0.53 MB)
(Location: IWMI-HQ Call no: PER Record No: H026906)
7 Kang, S.; Zhang, F.; Zhang, J.. 2001. A simulation model of water dynamics in winter wheat field and its application in a semiarid region. Agricultural Water Management, 49(2):115-129.
(Location: IWMI-HQ Call no: PER Record No: H028454)
8 Li, Z.; Zhang, J.. 2001. Calculation of field Manning's roughness coefficient. Agricultural Water Management, 49(2):153-161.
(Location: IWMI-HQ Call no: PER Record No: H028456)
9 Kang, S.; Gu, B.; Du, T.; Zhang, J.. 2003. Crop coefficient and ratio of transpiration to evapotranspiration of winter wheat and maize in a semi-humid region. Agricultural Water Management, 59(3):239-254.
(Location: IWMI-HQ Call no: PER Record No: H031534)
(Location: IWMI-HQ Call no: PER Record No: H033429)
11 Zhang, J.; Ray, S. A. F.; Steinman, A. 2002. Potential phosphorus load reductions under the Lake Okeechobee Regulatory Program. Journal of the American Water Resources Association, 38(6):1613-1624.
(Location: IWMI-HQ Call no: PER Record No: H033517)
(Location: IWMI-HQ Call no: P 6951 Record No: H035142)
13 Li, J.; Zhang, J.; Rao, M. 2004. Wetting patterns and nitrogen distributions as affected by fertigation strategies from a surface point source. Agricultural Water Management, 67(2):89-104.
(Location: IWMI-HQ Call no: PER Record No: H035002)
14 Li, F.; Kang, S.; Zhang, J.. 2004. Interactive effects of elevated CO2, nitrogen and drought on leaf area, stomatal conductance, and evapotranspiration of wheat. Agricultural Water Management, 67(3):221-233.
(Location: IWMI-HQ Call no: PER Record No: H035181)
(Location: IWMI-HQ Call no: PER Record No: H038675)
16 Chen, D.; White, R.; Li, Y.; Zhang, J.; Li, B.; Zhang, Y.; Edis, R.; Huang, Y.; Cai, G.; Wei, Y.; Zhu, A.; Hu, K.; Li, G.; Zhu, Z. 2006. Conservation management of water and nitrogen in the North China Plain using a GIS-based water and nitrogen management model and agricultural decision support tool. In Willett, I. R.; Gao, Z. (Eds.) Agricultural water management in China: Proceedings of a workshop held in Beijing, China, 14 September 2005. Canberra, Australia: ACIAR. pp.26-38.
(Location: IWMI-HQ Call no: 631.7 G592 WIL Record No: H039219)
17 Jayawardane, N. S.; Gao, Z.; Blackwell, J.; Christen, E. W.; Khan, S.; Cheng, X.; Cook, F.; Biswas, T.; Zhang, J.; Meng, G. 2006. The potential use of FILTER technology for treatment and reuse of wastewater in China. In Willett, I. R.; Gao, Z. (Eds.) Agricultural water management in China: Proceedings of a workshop held in Beijing, China, 14 September 2005. Canberra, Australia: ACIAR. pp.142-152.
(Location: IWMI-HQ Call no: 631.7 G592 WIL Record No: H039228)
18 Wei, Y.; Chen, D.; Edis, R.; White, R.; Davidson, B.; Zhang, J.; Li, B. 2006. The perspective of farmers on why the adoption rate of water-saving irrigation techniques is low in China. In Willett, I. R.; Gao, Z. (Eds.) Agricultural water management in China: Proceedings of a workshop held in Beijing, China, 14 September 2005. Canberra, Australia: ACIAR. pp.153-160.
(Location: IWMI-HQ Call no: 631.7 G592 WIL Record No: H039229)
(Location: IWMI HQ Call no: e-copy only Record No: H049630)
(3.37 MB) (3.37 MB)
The security of food-energy-water (FEW) systems is an issue of global concern, especially in mega-urban regions (MURs) with high-density populations, industries and carbon emissions. To better understand the hidden links between urbanization and FEW systems, the pressure on FEW systems was quantified in a typical rapidly urbanizing region—the Bohai MUR. The correlations between urbanization indicators and the pressure on FEW systems were analyzed and the mechanism of the impact of urbanization on FEW systems was further investigated. The results showed that approximately 23% of cropland was lost, 61% of which was lost via conversion to construction land and urban areas expanded by 132.2% in the Bohai MUR during 1980–2015. The pressure on FEW systems showed an upward trend, with the stress index of the pressure on FEW systems (FEW_SI) ranging from 80.49% to 134.82%. The dominant pressure consisting of that has converted from water system pressure to energy system pressure since 2004. The FEW_SI in the Bohai MUR was enhanced with cropland loss and increases in urbanization indicators. Additionally, land use, populations, incomes, policies and innovation are the main ways that urbanization affects FEW systems in MURs. This study enhances our understanding of the variation in pressure on FEW systems in MURs and the effects of urbanization on FEW systems, which will help stakeholders to enhance the resilience of FEW systems and promote sustainable regional development.
(Location: IWMI HQ Call no: e-copy only Record No: H050140)
(3.70 MB)
This study employed the Surface Energy Balance System (SEBS) algorithm to determine the actual evapotranspiration (ET) trends of the piedmont plain region of the Golmud River Basin between 2001 and 2016 and the effects of climate change and human activities on ET. The results indicate that the regional ET increased in the study area from 2001 to 2016. However, ET trends exhibited no change in most parts (68.58%) of the study area over the 16 years, but increased significantly in saline ponds and areas with vegetation cover, whereas no significant trends were observed in saline marshes or the piedmont Gobi gravel plain. The ET trend was closely related to the land-cover changes caused by human activities in the Golmud River Basin. During the study period, saline pond areas expanded from 50.57 to 257.85 km2 due to potash fertilizer production, and the area of farmland increased from 28.71 to 62.91 km2 and these changes contributed greatly to ET changes. Also, groundwater exploitation for potash fertilizer production and irrigation were correlated with ET.
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