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Dissertations / Theses on the topic 'North China Plain'

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1

Barning, Roland. "Economic evaluation of nitrogen application in the North China Plain." [S.l. : s.n.], 2008. http://nbn-resolving.de/urn:nbn:de:bsz:100-opus-2795.

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2

Hu, Mengyu. "Plio-Pleistocene environmental variations inferred from thick sediment sequences in the North China Plain." Thesis, University of Oxford, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363619.

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3

Gao, Meng. "Improving understanding of haze pollution In the North China Plain via atmospheric modeling and data assimilation." Diss., University of Iowa, 2015. https://ir.uiowa.edu/etd/2210.

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Frequent haze events have been happening in the North China Plain (NCP), and the severity of these events has attracted massive attention from both the public and the scientific community. Extremely high aerosol loadings in these haze events significantly influence visibility, human health and climate. Thus, improving understanding of haze pollution is of great importance. Furthermore, air quality modeling remains challenging. This thesis elucidated the roles of meteorology, secondary aerosol formation, regional transport, and aerosol feedbacks in winter haze formation, clarified the impacts of emission changes and meteorology changes on PM2.5 concentrations, directly emphasized the importance of implementing pollution control strategies using assessments of health and climate effects, and improved model performance in simulating sulfate and PM2.5 via incorporating heterogeneous sulfate formation and assimilating surface PM2.5 concentrations. This thesis also provided some implications for policy makers. Priorities should be given to control SO2, NH3, and OC emissions, which can be achieved by promoting the shift from coal/biofuel to cleaner energy, and by changing animal feeding and housing ways. In addition, more attention to greenhouse gases and absorbing aerosols is still necessary since absorbing aerosols play important roles in aerosol feedbacks, aerosol feedbacks can aggravate haze pollution, and increases in temperature may increase aerosol concentrations. To protect the public health, it is of great importance to predict air pollution episodes, release alerts of incoming severe haze episodes, and take emergency measures to reduce pollution levels.
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4

Powell, Jane Elizabeth. "Environmental and Economic Impacts of Chemical Fertilizer Use: A Case Study of the North China Plain." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1523891542371046.

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5

Mendoza, Huaitalla Roxana [Verfasser], and Eva [Akademischer Betreuer] Gallmann. "Intensive pig production and manure management in Beijing, North China Plain / Roxana Mendoza Huaitalla. Betreuer: Eva Gallmann." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2014. http://d-nb.info/1050767888/34.

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6

Menegat, Alexander [Verfasser], and Roland [Akademischer Betreuer] Gerhards. "Decision support systems for weed management in North China plain winter wheat production systems / Alexander Menegat. Betreuer: Roland Gerhards." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2013. http://d-nb.info/1034572571/34.

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7

Ha, Nan [Verfasser], and Enno [Akademischer Betreuer] Bahrs. "Environmental and economic assessment of the intensive wheat - maize production system in the North China Plain / Nan Ha. Betreuer: Enno Bahrs." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2016. http://d-nb.info/1093482184/34.

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8

Khor, Ling Yee [Verfasser], and Manfred [Akademischer Betreuer] Zeller. "Fertilizer quality and its impacts on technical efficiency and use intensity in the North China Plain / Ling Yee Khor. Betreuer: Manfred Zeller." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2014. http://d-nb.info/1046889001/34.

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9

Kopsch-Xhema, Jenny [Verfasser], and Andreas [Akademischer Betreuer] Fangmeier. "Air pollution by particulate matter and ammonia at suburban and rural sites in the North China Plain / Jenny Kopsch. Betreuer: Andreas Fangmeier." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2011. http://d-nb.info/1027292690/34.

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10

Hartmann, Tobias Edward [Verfasser], and Torsten [Akademischer Betreuer] Müller. "Evaluation and improvement of N fertilization strategies in the wheat/maize double-cropping system of the North China Plain / Tobias Edward Hartmann. Betreuer: Torsten Müller." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2015. http://d-nb.info/1070590223/34.

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11

Böning-Zilkens, Marion I. [Verfasser]. "Comparative appraisal of different agronomic strategies in a winter wheat-summer maize double cropping system in the North China Plain with regard to their contribution to sustainability / Marion I Böning-Zilkens." Aachen : Shaker, 2004. http://d-nb.info/1170539831/34.

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12

Heimfarth, Leif Erec [Verfasser], Oliver [Akademischer Betreuer] Mußhoff, Robert [Akademischer Betreuer] Finger, and Gunnar [Akademischer Betreuer] Breustedt. "Theory and application of weather index-based insurance in agriculture : to pitfalls of aggregation biases and the insurability of farmers in the North China Plain / Leif Erec Heimfarth. Gutachter: Oliver Mußhoff ; Robert Finger ; Gunnar Breustedt. Betreuer: Oliver Mußhoff." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2012. http://d-nb.info/1043717579/34.

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13

Heimfarth, Leif Erec Verfasser], Oliver [Akademischer Betreuer] [Mußhoff, Robert [Akademischer Betreuer] Finger, and Gunnar [Akademischer Betreuer] Breustedt. "Theory and application of weather index-based insurance in agriculture : to pitfalls of aggregation biases and the insurability of farmers in the North China Plain / Leif Erec Heimfarth. Gutachter: Oliver Mußhoff ; Robert Finger ; Gunnar Breustedt. Betreuer: Oliver Mußhoff." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2012. http://nbn-resolving.de/urn:nbn:de:gbv:7-webdoc-3728-3.

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14

Xue, Chaoyang. "Les sources de HONO atmosphérique rural et leur impact sur la qualité de l'air régional dans la Plaine de Chine du Nord." Electronic Thesis or Diss., Orléans, 2020. http://www.theses.fr/2020ORLE3107.

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La pollution de l'air est toujours un problème environnemental qui doit être résolu de toute urgence dans la Plaine de Chine du Nord (PCN). Dans le but d'explorer la formation de l’acide nitreux (HONO) et son impact sur la qualité de l'air régional dans la PCN, le développement et l'évaluation systématique d'instruments pour mesurer la concentration de HONO atmosphérique et son flux d'émission du sol ont été réalisés. Sur la base de mesures sur le terrain, un modèle 3D de chimie-transport (le système communautaire de modélisation de la qualité de l'air à plusieurs échelles : CMAQ, de l’EPA) et un modèle de boîte (0D) de mécanisme chimique (Master Chemical Mechanism : MCM) ont été utilisés pour explorer le bilan de HONO et son impact sur la pollution atmosphérique régionale, par exemple la pollution estivale à l'ozone (O3) et la pollution par la brume hivernale. Nous avons constaté que le sol agricole était une source importante de HONO avec un impact significatif sur la pollution régionale à l'ozone en été. Un nouveau mécanisme d'émission de HONO du sol lié à la nitrification a été proposé. HONO joue également un rôle important dans la capacité oxydante de l’atmosphère et la détérioration de la qualité de l'air régional en hiver
Air pollution is still an environmental problem that urgently needs to be solved in the North China Plain (NCP). With the aim to explore nitrous acid (HONO) formation and its impact on regional air quality in the NCP, the development and systematic assessment of instruments to measure atmospheric HONO concentration and soil HONO emission flux were realized. Based on field measurements, a 3D chemistry-transport model (the Community Multiscale Air Quality Modeling System, CMAQ) and a box (0D) model (Master Chemical Mechanism, MCM) were used to explore the HONO budget and its impact on regional air pollution, e.g., summer ozone (O3) pollution and winter haze pollution. We found that agricultural soil was an important HONO source with a significant impact on regional O3 pollution in the summertime. A new soil HONO emission mechanism related to nitrification was proposed. HONO also plays an important role in atmospheric oxidizing capacity and deteriorating regional air quality in the wintertime
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15

Michalczyk, Anna [Verfasser], Kurt Christian [Akademischer Betreuer] Kersebaum, Kurt Christian [Gutachter] Kersebaum, Rolf [Gutachter] Nieder, and Jürgen [Gutachter] Böttcher. "Modelling of nitrogen cycles in intensive winter wheat–summer maize double cropping systems in the North China Plain : site specific optimisation of nitrogen fertilisation with regard to nitrogen losses, water protection, productivity and regionalisation / Anna Michalczyk ; Gutachter: Kurt Christian Kersebaum, Rolf Nieder, Jürgen Böttcher ; Betreuer: Kurt Christian Kersebaum." Potsdam : Universität Potsdam, 2019. http://d-nb.info/1218405619/34.

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16

Barning, Roland [Verfasser]. "Economic evaluation of nitrogen application in the North China Plain / presented by Roland Barning." 2008. http://d-nb.info/989534405/34.

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17

Kühl, Yannick [Verfasser]. "Economic analysis on the agro-environmental impacts of management and policy measures in the North China Plain / by Yannick Kühl." 2011. http://d-nb.info/1010860569/34.

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18

Binder, Jochen [Verfasser]. "Reducing irrigation water supply to accomplish the goal of designing sustainable cropping systems in the North China Plain / by Jochen Binder." 2008. http://d-nb.info/988396432/34.

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19

Knörzer, Heike [Verfasser]. "Designing, modeling, and evaluation of improved cropping strategies and multi-level interactions in intercropping systems in the North China Plain / by Heike Knörzer." 2010. http://d-nb.info/101073864X/34.

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20

Feike, Til [Verfasser]. "Grasping the complexity of intercropping : developing and testing an integrated decision support system for vegetable production in the North China Plain / by Til Feike." 2010. http://d-nb.info/1010950223/34.

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21

Heimfarth, Leif Erec. "Theory and application of weather index-based insurance in agriculture -To pitfalls of aggregation biases and the insurability of farmers in the North China Plain-." Doctoral thesis, 2012. http://hdl.handle.net/11858/00-1735-0000-000D-EF45-3.

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22

Kröbel, Roland [Verfasser]. "Validation and evaluation of the DNDC model to simulate soil water content, mineral N and N2O emission in the North China Plain / presented by Roland Kröbel." 2009. http://d-nb.info/999417959/34.

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23

O, Tara C. "Contingency on the Korean peninsula : collapse to unification." Thesis, 2010. http://hdl.handle.net/2152/28486.

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A collapsed North Korea would pose a momentous test to the future of the region. The five regional powers—South Korea, China, Japan, Russia, and the United States—are ill-prepared for such an event, partly because of the act of planning for it would upset North Korea. However, the potential challenges of a collapse are too great to ignore. This study presents an historical and political analysis of the increasing risk that North Korea may collapse. A comparison with earlier cases suggests that triggers and indicators of collapse can be identified, including increasing cross-border information flows, defections, and the possible death or incapacitation of North Korea’s leader. Further, the large and growing economic disparity between North Korea and its neighbors, South Korea and China, points to likely consequences of collapse, including possible mass migration. The study then examines the roles of South Korea, China, the U.S., Japan, and Russia in the future of the Korean peninsula; it concludes with a further consideration of the paradox of collapse planning, but argues that it would be better to run the risks entailed in the exercise than to be caught flatfooted when a collapse occurs. The analysis is based on interviews, surveys, and documents in English and Korean.
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