Two-Stage Land Use Optimization for A Food-Energy-Water Nexus System: A Case Study In Texas Edwards Region

Author(s):  
Yaling Nie ◽  
Styliani Avraamidou ◽  
Xin Xiao ◽  
Efstratios N. Pistikopoulos ◽  
Jie Li
2016 ◽  
Vol 320 ◽  
pp. 334-347 ◽  
Author(s):  
Honghui Zhang ◽  
Yongnian Zeng ◽  
Xiaobin Jin ◽  
Bangrong Shu ◽  
Yinkang Zhou ◽  
...  

2020 ◽  
Vol 43 ◽  
pp. 101117 ◽  
Author(s):  
Dengshuai Chen ◽  
Jing Li ◽  
Xiaonan Yang ◽  
Zixiang Zhou ◽  
Yuqi Pan ◽  
...  

2014 ◽  
Vol 14 (11) ◽  
pp. 3015-3030 ◽  
Author(s):  
I. Cantarino ◽  
F. J. Torrijo ◽  
S. Palencia ◽  
E. Gielen

Abstract. This paper proposes a method of valuing the stock of residential buildings in Spain as the first step in assessing possible damage caused to them by natural hazards. For the purposes of the study we had access to the SIOSE (the Spanish Land Use and Cover Information System), a high-resolution land-use model, as well as to a report on the financial valuations of this type of building throughout Spain. Using dasymetric disaggregation processes and GIS techniques we developed a geolocalized method of obtaining this information, which was the exposure variable in the general risk assessment formula. Then, with the application over a hazard map, the risk value can be easily obtained. An example of its application is given in a case study that assesses the risk of a landslide in the entire 23 200 km2 of the Valencia Autonomous Community (NUT2), the results of which are analysed by municipal areas (LAU2) for the years 2005 and 2009.


Environments ◽  
2021 ◽  
Vol 8 (7) ◽  
pp. 65
Author(s):  
Ruth Anne Gonocruz ◽  
Ren Nakamura ◽  
Kota Yoshino ◽  
Masaru Homma ◽  
Tetsuya Doi ◽  
...  

Agrivoltaic systems, comprising photovoltaic panels placed over agricultural crops, have recently gained increasing attention. Emerging interest in these systems led us to investigate their influence on rice crops. Various factors affecting rice crop yield, including fertilizer application, temperature, and solar radiation, were directly observed, and measured to evaluate changes associated with the shading rates of photovoltaic systems installed above rice crops. The results suggest that the allowable upper limit of the shading rate for agrivoltaic installations ranges from 27 to 39%, which sustains at least 80% of the rice yield, a condition set by the Japanese Ministry of Agriculture, Forestry and Fisheries for these systems. If such systems are applied to rice paddies in Japan at 28% density, they could generate 284 million MWh/yr. This is equivalent to approximately 29% of the total Japanese electricity demand, based on 2018 calculations. This projection indicates the potential of agrivoltaic systems for efficient land use and sustainable energy generation.


Author(s):  
Kehinde Hassan Babalola ◽  
Simon Antony Hull

The Land Use Act of 1978 (LUA) has failed to achieve some of its objectives. The rural poor and the vulnerable are those most affected. The failure is ascribed to problems inherent in the Act and poor implementation. This paper discusses the effect of the LUA on the customary ownership of land and its effect on the tenure security of the rural poor. Using a conceptual framework for guiding cadastral systems development, the critical areas of the LUA as pertains to tenure security are analysed for the degree of their success, sustainability, and significance. The framework looks at the underlying theory, the drivers of change, the change process, and the land administration system. A mixed methodology approach was adopted for the study, using a single case study. Three groups of respondents contributed to the study: land professionals, civil servants and students. The study found that securing title to land is difficult, compensation provisions need to be reviewed, formal land registration is not in the interest of the poor, land is not available at an affordable rate, land speculators are still active in Nigerian land markets, the composition of the two committees is inadequate, and the refusal to grant certificates to people below the age of 21 is age biased. It further revealed that the power granted to the governor is enormous and unnecessary. The findings showed that the LUA is both effective in some areas and dysfunctional in others. This is because of the age of the Act and the lack of a pro-poor policy focus. Based on these findings recommendations were made, including that a new policy be enacted that includes pro-poor policies and customary laws. The LUA is found to be useful in urban areas, but not in solving land-related problems in rural areas. This study provides an understanding of the legal holding of land in Nigeria.


Author(s):  
S. Chaidee ◽  
P. Pakawanwong ◽  
V. Suppakitpaisarn ◽  
P. Teerasawat

In this work, we devise an efficient method for the land-use optimization problem based on Laguerre Voronoi diagram. Previous Voronoi diagram-based methods are more efficient and more suitable for interactive design than discrete optimization-based method, but, in many cases, their outputs do not satisfy area constraints. To cope with the problem, we propose a force-directed graph drawing algorithm, which automatically allocates generating points of Voronoi diagram to appropriate positions. Then, we construct a Laguerre Voronoi diagram based on these generating points, use linear programs to adjust each cell, and reconstruct the diagram based on the adjustment. We adopt the proposed method to the practical case study of Chiang Mai University’s allocated land for a mixed-use complex. For this case study, compared to other Voronoi diagram-based method, we decrease the land allocation error by 62.557 %. Although our computation time is larger than the previous Voronoi-diagram-based method, it is still suitable for interactive design.


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