{"title":"The stat of the art of terrestrial eco-hydrological mechanisms and numerical simulation","authors":"Xiaolei Cao, Ziru Wang, Zuhao Zhou","doi":"10.1109/PMA.2012.6524816","DOIUrl":"https://doi.org/10.1109/PMA.2012.6524816","url":null,"abstract":"Eco-hydrology is a science related to the overlapping parts of ecology and hydrology, studying the relationship between vegetation and water cycle in terrestrial and aquatic ecosystems. Climate change has significant effects on carbon and water cycles in terrestrial ecosystem, which have received extensive attentions in recent years. This paper provides a detailed analysis to the major parts of carbon and water cycles, and the relationship between these processes and environmental elements under climate change circumstances. This paper also summarized the classification and characteristics of eco-hydrological simulation models. Eco-hydrological simulation is an important approach to study the interaction between ecological and hydrological processes. The interaction mechanism and coupling of vegetation and hydrology at different scales is still a challenge in eco-hydrological research. Besides, researches on the response of eco-hydrological processes to climate change and human activities, and their feedback effects on climate are the most vigorous in this field.","PeriodicalId":117786,"journal":{"name":"2012 IEEE 4th International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127214133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"AMAPstudio: A software suite for plants architecture modelling","authors":"Sébastien Griffon","doi":"10.1109/PMA.2012.6524825","DOIUrl":"https://doi.org/10.1109/PMA.2012.6524825","url":null,"abstract":"AMAPstudio is a user-friendly software suite designed for botanists and agronomists to edit, visualize, explore and simulate multi-scale plant architecture. It contains interactive tools to handle the topology (e.g. organs addition or deletion), the geometry (e.g. 3D selection, edition, rotation) and the dynamics (i.e. time line, scenarios) of plants at the individual or scene scale. AMAPstudio is based on the Multi-scale Tree Graph (MTG) data structure, which is commonly used to represent plant topology. Users can explore this data structure to test or to improve hypotheses on plant development. Specific data can be extracted with combinations of criteria and can be visualized in tables and graphs. Simple analysis functions can be launched or data can be exported to external tools, e.g. R, or any other statistical computing environment, for more specific analyses. AMAPstudio is also a framework in which modellers can integrate their own plant simulation models. Different scenarios can be computed for a growth model by interactively modifying model parameters or plant structure (e.g. by pruning) at particular time steps.","PeriodicalId":117786,"journal":{"name":"2012 IEEE 4th International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126973149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Computational experiments of light distribution and photosynthesis in cucumber (Cucumis sativus L.) canopy","authors":"Tingting Qian, Shenglian Lu, Chunjiang Zhao, Xinyu Guo, Weiliang Wen","doi":"10.1109/PMA.2012.6524864","DOIUrl":"https://doi.org/10.1109/PMA.2012.6524864","url":null,"abstract":"Light distribution in cucumber canopy affects leaf photosynthesis directly. Scientific computing of light distribution and accurate modeling of canopy photosynthesis is beneficial to improve understanding of the canopy structure and provide a quantitative decision basis for optimal planting spacing design. In this paper, three 3D cucumber canopy models were reconstructed in different planting spacing using measured data. A canopy light distribution calculation model and photosynthesis model were used to calculate light interception and photosynthetic production. Experimental results demonstrated that based on the 3D cucumber canopy models and combining light distribution model, the light distribution in different planting spacing canopy can be simulated accurately. Leaf photosynthesis calculation based on the result of light distribution modeling provides an efficient approach to investigate the physiology of cucumber, and a favorable support for the decisions for optimal planting spacing design.","PeriodicalId":117786,"journal":{"name":"2012 IEEE 4th International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121680978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hong Guo, Yuan-chang Lu, Jun Diao, V. Letort, P. de Reffye
{"title":"Source-sink relationships vary with age in Chinese pine (Pinus tabulaeformis Carr.): Analysis using the GreenLab model","authors":"Hong Guo, Yuan-chang Lu, Jun Diao, V. Letort, P. de Reffye","doi":"10.1109/PMA.2012.6524826","DOIUrl":"https://doi.org/10.1109/PMA.2012.6524826","url":null,"abstract":"Tree growth and development rely on the underlying dynamics of their source-sink balance. Given the difficulty of collecting experimental data on adult trees, models can be used as tools to disentangle the complex processes that drive biomass production and allocation. This paper investigates the variations of parameters with age driving the source-sink balance of individual trees through the functional-structural plant model GreenLab. Six Chinese pine (Pinus tabulaeformis Carr.) trees were destructively sampled and were divided into three groups based on ages: 5-year old, 10-year old and 18-year old. Firstly, the effects of age on organ dimensions and on organ relative mass were analyzed based on direct experimental measurement. Secondly, the hidden parameters of the GreenLab model were estimated using the data of total tree biomass for needle and wood compartment independently and then for the six trees in parallel. The statistical tests showed that there were significant differences between the tip attributes on first-, second-, and third-order branches of the three age stages for internode diameter, internode sink and needle sink. Preliminary fitting results showed that the sink of layers and the parameter of biomass production efficiency 1/r decrease with age.","PeriodicalId":117786,"journal":{"name":"2012 IEEE 4th International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113951707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Rule-based integration of GreenLab into GroIMP with GUI aided parameter input","authors":"K. Smolenová, M. Henke, W. Kurth","doi":"10.1109/PMA.2012.6524856","DOIUrl":"https://doi.org/10.1109/PMA.2012.6524856","url":null,"abstract":"GreenLab is a functional-structural plant model that has already been applied to a number of various plant species. Plant organogenesis is described by the dual-scale automaton formalism and growth is driven by source-sink relations between plant organs. The paper presents how the formalism of GreenLab and the growth process can be translated into the rule-based language XL. Currently essential parts of the deterministic and stochastic version of the GreenLab model are included. To provide a user-friendly way for parameter input, an additional graphical user interface was developed as part of the modelling platform GroIMP. Furthermore, the features provided by GroIMP can now be coupled with GreenLab, e.g., the integrated radiation model, based on Monte Carlo ray tracing, for computing the light distribution in the canopy.","PeriodicalId":117786,"journal":{"name":"2012 IEEE 4th International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133778752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Simulated crop productivity on different soils in Canada","authors":"B. Qian, Ted Huffman, R. Jong","doi":"10.1109/PMA.2012.6524851","DOIUrl":"https://doi.org/10.1109/PMA.2012.6524851","url":null,"abstract":"Crop productivity on different soils across the Canadian Prairies was studied based on average yield of spring wheat simulated by the Cropping System Model in the Decision Support System for Agrotechnology Transfer (DSSAT). The simulations were conducted with estimated seeding dates, and both recommended nitrogen fertilizer application rates and unlimited nitrogen, for a comparison. The simulated yields represent the effect of soils on wheat productivity fairly well, although actual production might be different as local crop management practices, such as crop cultivars, fertilizer application rates and summerfallowing could have critical effects on final yields. Simulated yields with recommended and unlimited nitrogen fertilizer showed a very good relation, implying that the relative productivity on most soils was determined more by soil properties than nitrogen fertilizer application. The results also indicate that crop yield might be improved on most soils with higher nitrogen fertilizer application rates.","PeriodicalId":117786,"journal":{"name":"2012 IEEE 4th International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133506135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Functional structural plant modelling: Applications beyond the plant","authors":"J. Hanan","doi":"10.1109/PMA.2012.6524803","DOIUrl":"https://doi.org/10.1109/PMA.2012.6524803","url":null,"abstract":"Functional structural models are useful as a thinking tool for plant science research where spatial elements play an important role, both internally and in the local environment. But the resulting models of plant canopy also provide a platform for modelling interaction with other entities in the environment. Systems for simulating insect-plant interactions and spray-canopy interactions are described, as examples.","PeriodicalId":117786,"journal":{"name":"2012 IEEE 4th International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116836722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}