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Meiling Sheng, A-Xing Zhu, Tianwu Ma, Xufeng Fei, Zhouqiao Ren and Xunfei Deng
Global climate change is a serious threat to food and energy security. Crop growth modelling is an important tool for simulating crop food production and assisting in decision making. Planting date is one of the important model parameters. Larger-scale s...
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Liming Zhu, Huifeng Wu, Min Li, Chaoyin Dou and A-Xing Zhu
Accurate irrigation water-use data are essential to agricultural water resources management and optimal allocation. The obscuration presented by ground cover in farmland and the subjectivity of irrigation-related decision-making processes mean that effec...
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Zhi-Wei Hou, Cheng-Zhi Qin, A-Xing Zhu, Yi-Jie Wang, Peng Liang, Yu-Jing Wang and Yun-Qiang Zhu
Intelligent geoprocessing relies heavily on formalized parameter constraints of geoprocessing tools to validate the input data and to further ensure the robustness and reliability of geoprocessing. However, existing methods developed to formalize paramet...
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Qifei Zhou, Na Ren, Changqing Zhu and A-Xing Zhu
Projection transformation is an important part of geographic analysis in geographic information systems, which are particularly common for vector geographic data. However, achieving resistance to projection transformation attacks on watermarking for vect...
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Nai-Qing Fan, A-Xing Zhu, Cheng-Zhi Qin and Peng Liang
Environmental covariates are fundamental inputs of digital soil mapping (DSM) based on the soil?environment relationship. It is normal to have invalid values (or recorded as NoData value) in individual environmental covariates in some regions over an are...
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Zhi-Wei Hou, Cheng-Zhi Qin, A-Xing Zhu, Peng Liang, Yi-Jie Wang and Yun-Qiang Zhu
One of the key concerns in geographic modeling is the preparation of input data that are sufficient and appropriate for models. This requires considerable time, effort, and expertise since geographic models and their application contexts are complex and ...
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Fang-He Zhao, Cheng-Zhi Qin, Teng-Fei Wei, Tian-Wu Ma, Feng Qi, Jun-Zhi Liu and A-Xing Zhu
Field sampling is an important way of collecting soil information for the modeling and evaluation steps during digital soil mapping (DSM). However, some predesigned samples may not be accessible in the field due to natural or anthropogenic reasons. Simpl...
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