Academic literature on the topic 'Arid restoration'

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Journal articles on the topic "Arid restoration"

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Wang, Hao, Guohua Liu, Zongshan Li, Pengtao Wang, and Zhuangzhuang Wang. "Comparative Assessment of Vegetation Dynamics under the Influence of Climate Change and Human Activities in Five Ecologically Vulnerable Regions of China from 2000 to 2015." Forests 10, no. 4 (April 7, 2019): 317. http://dx.doi.org/10.3390/f10040317.

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Ongoing climate change and human activities have a great effect on vegetation dynamics. Understanding the impact of climate change and human activities on vegetation dynamics in different ecologically vulnerable regions has great significance in ecosystem management. In this study, the predicted NPP (Net Primary Productivity) and the actual NPP based on different ecological process data and models were combined to estimate the vegetation dynamics and their driving forces in the Northern Wind-sand, Loess Plateau, Arid Desert, Tibetan Plateau, and Karst regions from 2000 to 2015. The results indicated that the NPP in all ecologically vulnerable regions showed a restoration trend, except for that in the Karst region, and the percentage of areas in which NPP increased were, in order, 78% for the Loess Plateau, 71% for the Northern Wind-sand, 69% for the Arid Desert, 54% for the Tibetan Plateau, and 31% for the Karst regions. Vegetation restorations in the Northern Wind-sand and Arid Desert regions were primarily attributable to human activities (86% and 61% of the restoration area, respectively), indicating the success of ecological restoration programs. The Loess Plateau had the largest proportion of vegetation restoration area (44%), which was driven by combined effects of climate and human factors. In the Tibetan Plateau, the vegetation changes due to climate factors were primarily distributed in the west, while those due to human factors were primarily distributed in the east. Human activities caused nearly 60% of the vegetation degradation in the Karst region. Based on these results, it is recognizable that regional climate conditions are the key factor that limits ecological restoration. Therefore, future policy-making should pay more attention to the local characteristics of different ecological vulnerable regions in regional ecosystem management to select reasonable restoration measures, improve restoration efficiency, and maximize the benefits of ecological restoration programs.
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Clothier, Van, and Ana Córdova. "RESTAURACIÓN HIDROLÓGICA DE PASTIZALES DEGRADADOS EN COMUNIDADES ÁRIDAS Y SEMIÁRIDAS." Vivienda y Comunidades Sustentables, no. 5 (January 1, 2019): 93–110. http://dx.doi.org/10.32870/rvcs.v0i5.64.

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Vivimos en el Antropoceno. La super cie com- pleta de la tierra ha sido impactada por la actividad humana y nuestro uso del suelo. En este con- texto, la mayoría de los pastizales en zonas áridas y semiáridas tienen procesos de degradación. Este trabajo describe los cambios provocados por la antropización del paisaje en pastizales del norte de México y Suroeste de Estados Unidos, y la forma como se comporta la hidrología de ellos ante diferentes intensidades de precipitación típicas de estas regiones. Se explican algunas causas principales del deterioro de pastizales en zonas semiáridas, se identifican estrategias sistémicas de atención a esas causas, y se presentan varias técnicas concretas de intervención en el paisaje que ayudan a la restauración de estos ecosistemas. Estas técnicas incluyen la restauración de trayectorias de flujo históricas, el drenaje de caminos con bordos de desvío, la colocación de hileras de postes para restaurar riberas erosionadas y de represas de una roca para la restauración de pequeños tributarios con procesos erosivos. Se documenta fotográficamente los efectos de estas intervenciones en el paisaje.
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Bainbridge, D. A. "Alternative Irrigation Systems for Arid Land Restoration." Ecological Restoration 20, no. 1 (March 1, 2002): 23–30. http://dx.doi.org/10.3368/er.20.1.23.

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Curtin, Charles G. "Livestock Grazing, Rest, and Restoration in Arid Landscapes." Conservation Biology 16, no. 3 (June 2002): 840–42. http://dx.doi.org/10.1046/j.1523-1739.2002.01212.x.

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Padilla, Francisco M., Rafael Ortega, Joaquín Sánchez, and Francisco I. Pugnaire. "Rethinking species selection for restoration of arid shrublands." Basic and Applied Ecology 10, no. 7 (October 2009): 640–47. http://dx.doi.org/10.1016/j.baae.2009.03.003.

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Green, DR. "Rangeland restoration projects in western New South Wales." Rangeland Journal 11, no. 2 (1989): 110. http://dx.doi.org/10.1071/rj9890110.

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The semi-arid to arid Western Division of New South Wales has suffered significant levels of land degradation due to overstocking by domestic animals and rabbits. Three major forms of land degradation are identified, soil erosion, woody weed growth and pasture quality decline. Restoration techniques developed and applied by the New South Wales Soil Conservation Service are presented and discussed. The successful techniques presented are contour furrowing and waterponding for sheet eroded or scalded areas, fire and blade ploughing for woody weed control and grazing management to reverse pasture decline. The lack of knowledge on pasture species responses to grazing management stimuli is highlighted.
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Zhang, Zhi-Hua, Hai-Ying Peng, and Yuhua Kong. "Effects of the “Grain for Green” Program on Soil Water Dynamics in the Semi-Arid Grassland of Inner Mongolia, China." Water 13, no. 15 (July 26, 2021): 2034. http://dx.doi.org/10.3390/w13152034.

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The Grain for Green Program (GGP) initiated by Chinese government significantly impacts mitigating environmental degradation. Soil water resources probably constrain large-scale vegetation restoration projects in arid and semi-arid regions. Characterizing soil water dynamics after the GGP’s implementation is essential in assessing whether vegetation restoration can be sustained as part of ecological restoration. In this study, four sites were selected for field investigation: original natural grassland (NG) and grassland that was reconverted from cropland 12 years (12-year site), 8 years (8-year site), and 6 years (6-year site) before. Soil water at five depths was measured continuously at 10 min intervals at four sites. The findings showed that less rainfall infiltrated a deeper soil layer as the time after restoration augmented, and the 12-year site had the shallowest infiltration depth and soil water storage. Younger restored grassland (8-year and 6-year sites) had a higher soil water content than older restored grassland (12-year site) and NG. The soil water content decreased steadily with restoration age after an immediate initial rise, and the highest soil moisture was in the 8-year site. The results suggest that soil water dynamics varied with GGP and a soil water deficit could be formed after the GGP’s implementation for 12 years in semi-arid grassland.
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Gornish, Elise, Hannah Arnold, and Jeffrey Fehmi. "Review of seed pelletizing strategies for arid land restoration." Restoration Ecology 27, no. 6 (October 16, 2019): 1206–11. http://dx.doi.org/10.1111/rec.13045.

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James, Jeremy J., Tony J. Svejcar, and Matthew J. Rinella. "Demographic processes limiting seedling recruitment in arid grassland restoration." Journal of Applied Ecology 48, no. 4 (May 18, 2011): 961–69. http://dx.doi.org/10.1111/j.1365-2664.2011.02009.x.

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Li, Bin-Bin, Pan-Pan Li, Wan-Tao Zhang, Jing-Yi Ji, Guo-Bin Liu, and Ming-Xiang Xu. "Deep soil moisture limits the sustainable vegetation restoration in arid and semi-arid Loess Plateau." Geoderma 399 (October 2021): 115122. http://dx.doi.org/10.1016/j.geoderma.2021.115122.

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Dissertations / Theses on the topic "Arid restoration"

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Lison, Christine Anne. "Mine Site Restoration - Maximisation of Topsoil in Restoration of Semi-arid Lands." Thesis, Curtin University, 2020. http://hdl.handle.net/20.500.11937/81305.

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This thesis examined the physical and chemical properties of soil mixes incorporating 25%, 50%, 75% and 88% waste rock and tested the influence of these properties on plant growth and development and early seedling growth. Results of the analysis indicate that increasing waste rock content causes an increase in soil salinity, a decline in soil water content but an improvement in soil water conservation. This study paves the way for efforts to optimise restoration practices.
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Bunting, Daniel Paul. "Riparian Restoration and Management of Arid and Semiarid Watersheds." Diss., The University of Arizona, 2012. http://hdl.handle.net/10150/228166.

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Riparian ecosystems are valued for ecosystem services which have impacts on the well-being of humans and the environment. Anthropogenic disturbances along rivers in arid and semiarid regions have altered historical flow regimes and compromised their integrity. Many rivers are hydroecologically deteriorated, have diminished native riparian forests, and are pressured for their water supplies. My first study is founded on the premise that river restoration has increased exponentially with little documentation on effectiveness. We designed a conference to discuss lessons learned from past restoration activities to benefit future efforts. Participants, including scientists, managers, and practitioners, agreed that creating measureable objectives with subsequent monitoring is essential for quantifying success and employing adaptive management. Attendees stated that current projects are local and have limited funding and time, whereas future efforts must have longer funding cycles, larger timeframes, should contribute to regional goals, and address factors responsible for ecological decline. Bridging gaps among science, management, and policy in the 21st century is a key component to success. My second study focused on the benefits of long-term monitoring of local riparian restoration. Many efforts include revegetation components to re-establish native cottonwood-willow communities, but do not address how high-density establishment impacts vegetation dynamics and sustainability. Over five years, we documented significantly higher growth rates, lower mortality, and higher cover in cottonwood compared to non-native tamarisk. Cottonwood height, diameter at breast height, growth rates, and foliar volumes were reduced at higher densities. Herbaceous species decreased every year but native shrubs volunteered after two years resulting in a reduction of overall plant diversity from 2007-2009 with a slight increase from 2009-2011.My third study focused on improving basin-scale evapotranspiration (ET), a large component of the water budget, to better inform water resource allocation. My research suggests that multiple models are required for basin-scale ET estimates due to vegetation variability across water-limitation gradients. We created two empirical models using remote sensing, a multiplicative riparian ET model (r²=0.92) using MODIS nighttime land surface temperature (LST(n)) and enhanced vegetation index, and an upland ET model (r²=0.77) using multiple linear regression replacing LST(n) with a precipitation input.
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Murdoch, Fiona University of Ballarat. "Restoration ecology in the semi-arid woodlands of north-west Victoria." University of Ballarat, 2005. http://archimedes.ballarat.edu.au:8080/vital/access/HandleResolver/1959.17/12794.

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Arid areas are often overgrazed and dysfunctional with poor recruitment of desirable species, diminished control over resources and altered soil properties. Restoration ecology re-establishes these valued processes. State-and-transition models summarise knowledge of vegetation dynamics and tools for restoration, and encourage the incorporation of new information. The model developed here for semi-arid woodlands of north-west Victoria highlighted the unknown cause of observed, natural recruitment and the need for a technique, other than direct seeding and handplanting, for enhancing the recruitment of desirable species. I pursued these knowledge gaps for two dominant, woodland trees: Allocasuarina luehmannii and Casuarina pauper. Natural recruitment of juvenile C. pauper was found to be limited and primarily from root suckers. Extensive recruitment of A. luehmannii was shown to be mostly seedlings established following substantial reductions in grazing pressure since 1996. Seedlings were associated with areas devoid of ground flora near a female tree. The importance of competition between seedlings and ground flora, spatial variation in soil moisture and individual variation in the quantity of seed produced deserves further investigation to enhance future restoration success. Root suckers of both C. pauper and A. luehmannii can be artificially initiated, albeit in low numbers and this was found to be a feasible, new tool for restoration. Suckers are preceded by the growth of callus tissue on exposed or damaged, living, shallow roots. Both male and female trees can produce suckers and spring treatments may be more successful. Genetic fingerprinting of mature A. luehmannii and C. pauper trees in six populations did not identify any clonal individuals indicating that recruitment in the past has been from seedlings. Despite this, the high level of gene flow suggests that the impact of introducing small numbers of root suckers into existing populations is unlikely to impact negatively on the population genetics of these species.
Doctor of Philosophy
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Murdoch, Fiona. "Restoration ecology in the semi-arid woodlands of north-west Victoria." University of Ballarat, 2005. http://archimedes.ballarat.edu.au:8080/vital/access/HandleResolver/1959.17/14630.

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Arid areas are often overgrazed and dysfunctional with poor recruitment of desirable species, diminished control over resources and altered soil properties. Restoration ecology re-establishes these valued processes. State-and-transition models summarise knowledge of vegetation dynamics and tools for restoration, and encourage the incorporation of new information. The model developed here for semi-arid woodlands of north-west Victoria highlighted the unknown cause of observed, natural recruitment and the need for a technique, other than direct seeding and handplanting, for enhancing the recruitment of desirable species. I pursued these knowledge gaps for two dominant, woodland trees: Allocasuarina luehmannii and Casuarina pauper. Natural recruitment of juvenile C. pauper was found to be limited and primarily from root suckers. Extensive recruitment of A. luehmannii was shown to be mostly seedlings established following substantial reductions in grazing pressure since 1996. Seedlings were associated with areas devoid of ground flora near a female tree. The importance of competition between seedlings and ground flora, spatial variation in soil moisture and individual variation in the quantity of seed produced deserves further investigation to enhance future restoration success. Root suckers of both C. pauper and A. luehmannii can be artificially initiated, albeit in low numbers and this was found to be a feasible, new tool for restoration. Suckers are preceded by the growth of callus tissue on exposed or damaged, living, shallow roots. Both male and female trees can produce suckers and spring treatments may be more successful. Genetic fingerprinting of mature A. luehmannii and C. pauper trees in six populations did not identify any clonal individuals indicating that recruitment in the past has been from seedlings. Despite this, the high level of gene flow suggests that the impact of introducing small numbers of root suckers into existing populations is unlikely to impact negatively on the population genetics of these species.
Doctor of Philosophy
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Beukes, Petrus Cornelius. "Livestock impact assessment and restoration strategies in the semi-arid Karoo." Doctoral thesis, University of Cape Town, 1999. http://hdl.handle.net/11427/9065.

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Karoo rangelands exhibit spatial and temporal patterns that have important implications for the livestock industry. Spatially, there are gradients, often abrupt, in ecosystem structure and functioning, while plant composition and productivity are highly variable over time. A predictive understanding of these patterns, and the processes that cause them, is a prerequisite for developing appropriate restoration strategies. This thesis comprises several studies that attempt to relate vegetation patterns and processes to restoration strategies in southern Africa's Succulent- and Nama karoo ecosystems. One hypothesis is that small-scale changes in soil physical and chemical properties are responsible for the fine-scale patterning evident in winter-rainfall Succulent karoo ecosystems. Alternatively, these patterns could be the result of area-selective grazing by livestock. To evaluate these hypotheses, plant and soil data were collected along soil- and grazing gradients radiating from a watering point in a Succulent karoo landscape. Results indicated that properties influencing soil hydrology and nutrient status are important determinants of pattern, and that long-term area-selective grazing can permanently change some of these properties. The hypothesis that the stasis of severely degraded patches in this biosphere is a consequence of poor water infiltration and seed limitation was tested in a restoration experiment. It appeared that natural seed availability is not limiting, but water infiltration has to be improved to initiate the restoration process. Removal of shrub material in long-ungrazed and moribund areas on the outer perimeter of the biosphere, had a positive impact in releasing resources for more seedlings and young growth, but did not alter plant species richness. Stocking rate, composition and management of livestock profoundly influence the dynamics and composition of summer-rainfall Nama karoo vegetation. Proponents of non-selective grazing (NSG) argue that the periodic concentration in high densities of livestock in small areas, followed by long resting periods, improves vegetation composition as a consequence of low grazing selectivity, and enhances vegetation productivity and soil ecosystem processes as a result of intense hoof-action, dunging and urination impacts. Despite its application in farming systems, no studies have yet tested the predictions of NSG. I evaluated the effects of NSG on the soils and vegetation of Nama karoo rangeland in a fully replicated experiment. NSG did not alter the fertile-patch matrix, but improved soil infiltration. Plant compositional and cover changes could not be related to NSG. Rainfall was a much stronger driving force. I also explored the economics of NSG at the farm scale under different rainfall and stocking scenarios. An ecological-economic model predicted that NSG would be a viable option in higher rainfall (>200mm) areas because of the forage buffering capacity which enables the manager to maintain livestock through unpredictable droughts. Restoration strategies for the Succulent Karoo have to focus on the resource-retention capacity of the soils. Livestock can reduce this capacity; low-stocking, flexible farming systems are therefore recommended for these more fragile ecosystems. Livestock in the more resilient Nama Karoo can be managed in a NSG system that can lead to an improvement in ecosystem functioning and maintain productivity in times of drought.
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Giardina, Mariah. "Challenges and Strategies for Spring Ecosystem Restoration in the Arid Southwest." Arizona-Nevada Academy of Science, 2011. http://hdl.handle.net/10150/296987.

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Neenan, Johnathan. "Evaluation of Stream Bank Restoration to Improve Water Quality in a Semi-Arid Stream." DigitalCommons@USU, 2019. https://digitalcommons.usu.edu/etd/7687.

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Human watershed activities such as converting land cover to agriculture and livestock grazing have negatively impacted stream water quality worldwide. One such case is Utah’s Upper Sevier River where a loss of woody bank vegetation (reduced shading) and accelerated bank erosion (increased fine sediment inputs) has led to increased stream temperature and water turbidity. As a result, the state of Utah sought to improve water quality conditions using streambank restoration. While commonly recommended and performed, the effectiveness of this sort of restoration has rarely been quantified. Here, I evaluated a restored reach of the Upper Sevier River near Hatch, UT using continuous monitoring data and a historical photo analysis. As Utah wishes to continue performing this type of restoration in additional locations on the Upper Sevier River, I applied a simple sediment budget model to test its value in informing future streambank restoration decisions. Continuous monitoring data at the upstream and downstream extent of restoration showed that both stream temperature and turbidity increased downstream along the restored reach. In addition, I found that stream temperature violated Utah’s cold-water stream threshold at both sites but did not violate thresholds for rainbow trout. Turbidity violated state and biological thresholds at both sites. I was unable to conclude whether the streambank restoration directly altered water quality because I lacked monitoring data before restoration occurred. Results of the historical aerial photo analysis showed that restoration practitioners were successful in reducing cut bank erosion. My use of SIAM as a simple sediment budget model proved insufficient due to poor data quality and quantity. Overall, streambank restoration was successful at reducing cut bank erosion, and I recommended monitoring future restoration before and after project completion, identifying and monitoring upstream sources of fine sediment, and pursuing more comprehensive sediment models to inform future streambank restoration.
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Van, den Berg Loraine. "The evaluation and promotion of best practices for the restoration of arid- and semi-arid rangelands in southern Africa / Loraine van den Berg." Thesis, North-West University, 2007. http://hdl.handle.net/10394/2036.

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Gardner, Eric Ty. "Arthropod and plant communities as indicators of land rehabilitation effectiveness in a semi-arid shrub-steppe /." Diss., CLICK HERE for online access, 2008. http://contentdm.lib.byu.edu/ETD/image/etd2559.pdf.

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Fukuda, Yuki. "The effects of closing watering points on populations of large macropods and landscape rehabilitation in a semi-arid national park /." [St. Lucia, Qld.], 2006. http://adt.library.uq.edu.au/public/adt-QU20060511.125915/index.html.

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Books on the topic "Arid restoration"

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Siyag, Panna Ram. Afforestation, Reforestation and Forest Restoration in Arid and Semi-arid Tropics. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-007-7451-3.

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Mathur, H. S. Arid lands, people & resources. Jaipur: RBSA Publishers, 1994.

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Briggs, Mark K. Riparian ecosystem recovery in arid lands: Strategies and references. Tucson: University of Arizona Press, 1996.

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Wells, G. Post-mining restoration of Spinifex species in the arid-tropical zone. East Perth, WA: MERIWA, 1999.

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Bainbridge, David A. A guide for desert and dryland restoration: New hope for arid lands. Washington, DC: Island Press, 2007.

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Wildland Shrub and Arid Land Restoration Symposium (1993 Las Vegas, Nev.). Proceedings: Wildland Shrub and Arid Land Restoration Symposium, Las Vegas, NV, October 19-21, 1993. Ogden, UT: Intermountain Research Station, Forest Service, U.S. Dept. of Agriculture, 1995.

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Gan re he gu tui hua sheng tai xi tong dian xing hui fu mo shi de sheng tai xiang ying yu ping jia. Beijing: Ke xue chu ban she, 2011.

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Ray, Sunil. Restoration of degraded pastureland ecosystem in semi arid Rajasthan: A study of two villages. Jaipur: Institute of Development Studies, 2004.

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Back to earth: Adobe building in Saudi Arabia. Riyadh: Al-Turath in association with the London Centre of Arab Studies, 1997.

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Walls, Archibald G. Arad Fort, Bahrain: Its restoration, its history, and defences. [Bahrain]: Directorate of Tourism and Archaeology, Ministry of Information, State of Bahrain, 1987.

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Book chapters on the topic "Arid restoration"

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Bainbridge, David A. "Restoration of Arid and Semi-Arid Lands." In Restoration Ecology, 115–29. Chichester, UK: John Wiley & Sons, Ltd, 2012. http://dx.doi.org/10.1002/9781118223130.ch10.

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Weishar, Lee, Ian Watt, David A. Jones, and David Aubrey. "Evaluation of arid salt marsh restoration techniques." In Protecting the Gulf’s Marine Ecosystems from Pollution, 273–79. Basel: Birkhäuser Basel, 2008. http://dx.doi.org/10.1007/978-3-7643-7947-6_16.

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Siyag, Panna Ram. "Introduction." In Afforestation, Reforestation and Forest Restoration in Arid and Semi-arid Tropics, 3–15. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-7451-3_1.

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Siyag, Panna Ram. "Ensuring Sustainability." In Afforestation, Reforestation and Forest Restoration in Arid and Semi-arid Tropics, 239–53. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-7451-3_10.

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Siyag, Panna Ram. "Nursery Techniques." In Afforestation, Reforestation and Forest Restoration in Arid and Semi-arid Tropics, 17–49. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-7451-3_2.

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Siyag, Panna Ram. "Site Selection, Survey and Treatment Plan." In Afforestation, Reforestation and Forest Restoration in Arid and Semi-arid Tropics, 51–78. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-7451-3_3.

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Siyag, Panna Ram. "Fencing Work." In Afforestation, Reforestation and Forest Restoration in Arid and Semi-arid Tropics, 79–89. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-7451-3_4.

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Siyag, Panna Ram. "Soil and Water Conservation Works." In Afforestation, Reforestation and Forest Restoration in Arid and Semi-arid Tropics, 91–107. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-7451-3_5.

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Siyag, Panna Ram. "Planting, Regeneration, Aftercare and Maintenance." In Afforestation, Reforestation and Forest Restoration in Arid and Semi-arid Tropics, 109–24. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-7451-3_6.

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Siyag, Panna Ram. "Costing and Estimation of Works." In Afforestation, Reforestation and Forest Restoration in Arid and Semi-arid Tropics, 127–200. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-7451-3_7.

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Conference papers on the topic "Arid restoration"

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Zurkee, Sarah. "HYDROLOGIC RESPONSES OF SPRING-FED HART PRAIRIE WATERSHED IN SEMI-ARID NORTHERN ARIZONA TO FOREST RESTORATION." In GSA Connects 2022 meeting in Denver, Colorado. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022am-381012.

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Guo Man, Xu Bin, Wang Lixia, and Zhang Yan. "CCa-based analysis of relationship between soil environment and vegetation restoration in semi-arid areas of Northwest China." In 2011 International Symposium on Water Resource and Environmental Protection (ISWREP). IEEE, 2011. http://dx.doi.org/10.1109/iswrep.2011.5893510.

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Meroni, Michele, Anne Schucknecht, Dominique Fasbender, Felix Rembold, Francesco Fava, Margaux Mauclaire, Deborah Goffner, Luisa M. Di Lucchio, and Ugo Leonardi. "Remote sensing monitoring of land restoration interventions in semi-arid environments using a before-after control-impact statistical design." In 2017 9th International Workshop on the Analysis of Multitemporal Remote Sensing Images (MultiTemp). IEEE, 2017. http://dx.doi.org/10.1109/multi-temp.2017.8035201.

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Stark, Jeremy, Julius Yellowhair, John N. Hudelson, Mark Horenstein, and Malay Mazumder. "Optical Modeling of Reflectivity Loss Caused by Dust Deposition on CSP Mirrors and Restoration of Energy Yield by Electrodynamic Dust Removal." In ASME 2014 8th International Conference on Energy Sustainability collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/es2014-6506.

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For large scale CSP power plants, vast areas of land are needed in deserts and semi-arid climates where uninterrupted solar irradiance is most abundant. These power facilities use large arrays of mirrors to reflect and concentrate sunlight onto collectors, however, dust deposition on the optical surfaces causes obscuration of sunlight, resulting in large energy-yield losses in solar plants. This problem is compounded by the lack of natural clean water resources for conventional cleaning of solar mirrors, often with reflective surface areas of large installations exceeding a million square meters. To investigate the application of transparent electrodynamic screens (EDS) for efficient and cost effective dust removal from solar mirrors, both optical modeling and experimental verifications were performed. Prototype EDS-integrated mirrors were constructed by depositing a set of parallel transparent electrodes into the sun-facing surface of solar mirrors and coating electrodes with thin transparent dielectric film. Activation of the electrodes with a three-phase voltage creates an electrodynamic field that charges and repels dust electrostatically by Coulomb force and sweeps away particles by a traveling electrodynamic wave. We report here brief discussions on (1) rate of deposition and the properties of dust with respect to their size distribution and chemical composition in semi-arid areas of the southwest US and Mojave Desert and their adhesion to solar mirrors, (2) optical models of: (a) specular reflection losses caused by scattering and absorption by dust particles deposited on the surface based on Mie scattering theory, and (b) reflection loss by the integration of EDS on the mirror surface, computed by FRED ray-tracing model. The objective is to maintain specular reflectivity of 90% or higher by frequent removal of dust by EDS. Our studies show that the incorporation of transparent EDS would cause an initial loss of 3% but would be able to maintain specular reflectivity more than 90% to meet the industrial requirement for CSP plants. Specular reflection measurements taken inside a climate controlled environmental chamber show that EDS integration can restore specular reflectivity and would be able to prevent major degradation of the optical surface caused by the deposition of dust.
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Xiong, Hei-Gang, N. Nurbai, Tashpolat Tiyip, Wei Zhong, Bing-Qi Zhu, and Xiao-Jun Meng. "Restoration and habitat of phytocoenosis in ecotone between oasis and desert in extreme arid zone: a case study in Qira area." In Third International Asia-Pacific Environmental Remote Sensing Remote Sensing of the Atmosphere, Ocean, Environment, and Space, edited by Xiaoling Pan, Wei Gao, Michael H. Glantz, and Yoshiaki Honda. SPIE, 2003. http://dx.doi.org/10.1117/12.466860.

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Poff, Boris, and Daniel G. Neary. "Will Large Scale Forest Restoration Treatments Provide More Water for Population Growth in the Semi-Arid West: Current Hydrologic Research in Arizona." In World Environmental and Water Resources Congress 2008. Reston, VA: American Society of Civil Engineers, 2008. http://dx.doi.org/10.1061/40976(316)314.

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Li, Jimei, Hailiang Xu, and Mao Ye. "Role of Water Management in Ecological Restoration and Economic Development in Arid Regions: Taken the Lower Reaches of Tarim River as an Example." In 2009 Fourth International Conference on Computer Sciences and Convergence Information Technology. IEEE, 2009. http://dx.doi.org/10.1109/iccit.2009.212.

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Lipka, Oksana, G. Mazmaniants, Maria Isupova, A. Aleynikov, Dmitry Zamolodchikov, and Vladimir Kaganov. "USING OF THE ILI RIVER DELTA ECOSYSTEM SERVICES FOR ADAPTATION TO CLIMATE CHANGE." In Land Degradation and Desertification: Problems of Sustainable Land Management and Adaptation. LLC MAKS Press, 2020. http://dx.doi.org/10.29003/m1700.978-5-317-06490-7/158-165.

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Ecosystem-based adaptation can be applied as an option for sustainable land management. Methodologies that not only prevent land degradation but also contribute to the maintenance of a hydrological regime have become a priority in arid Central Asian climate. Large river deltas can be used as a natural counter-regulator, which accumulates water in wet seasons/years and gradually gives it back to low-water ones. To do so the land-use regime must prevent the degradation of ecosystems and the reduction of their functions. The hystorical anthropogenic damage must be eliminated. In the case of the Ili River delta the restoration of tugai forests is required on an area of at least 30% of the territory, i.e. more than 200 thousand hectares. Afforestation can lead to an increase in the underground water supply of the river at 30 - 70%. The groundwater supply to the river branches in the delta can increase by 1.26 - 2.94 km3/year (up to 21% annual river flow), which, in turn, will lead to additional water supply to Lake Balkhash and reduce the risk of the Aral Sea crisis repetition.
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Casso, G., C. Cachin, and JC Gerster. "FRI0237 Assessment of a functional restoration program for patients with chronic low back pain." In Annual European Congress of Rheumatology, Annals of the rheumatic diseases ARD July 2001. BMJ Publishing Group Ltd and European League Against Rheumatism, 2001. http://dx.doi.org/10.1136/annrheumdis-2001.541.

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Bica, Smaranda. "PRESERVATION � RESTORATION � INTEGRATION WITHIN THE WIDER CONTEXT. PROPOSAL FOR MUSEALISATION OF RURAL MONUMENTS IN ARAD COUNTY, ROMANIA AS TOURIST DESTINATIONS." In 4th International Multidisciplinary Scientific Conference on Social Sciences and Arts SGEM2017. STEF92 Technology, 2017. http://dx.doi.org/10.5593/sgemsocial2017/22/s07.022.

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Reports on the topic "Arid restoration"

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Roundy, Bruce A., E. Durant McArthur, Jennifer S. Haley, and David K. Mann. Proceedings: Wildland Shrub and Arid Land Restoration Symposium. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station, 1995. http://dx.doi.org/10.2737/int-gtr-315.

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Fischer, Richard A. Ecosystem Management and Restoration. January 2003. Riparian Restoration and Management Needs in the Arid and Semi-Arid Western United States. Fort Belvoir, VA: Defense Technical Information Center, January 2003. http://dx.doi.org/10.21236/ada410913.

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