Wenbin Liu

State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing

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Jianbin Tao

Central China Normal University

Wei He

State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing

Xiaoping Lei

Hohai University

Guoying Yin

State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing

Hongyan Zhang

Wuhan University

Hongyan Zhang

China University of Geosciences

Xubo Geng

Junyao Zhang

Institute of Geographic Sciences and Natural Resources Research

Xiaoyan Song

Nanjing University of Chinese Medicine

X. Liu

Wuhan University

Cooperative Institutions

Wuhan University

Chinese Academy of Sciences

State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing

Hohai University

Tianjin Polytechnic University

Tianjin University

Chinese Academy of Agricultural Sciences

Central China Normal University

University of Chinese Academy of Sciences

Tsinghua University

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Mapping annual center-pivot irrigated cropland in Brazil during the 1985–2021 period with cloud platforms and deep learning

ISPRS Journal of Photogrammetry and Remote Sensing (2023)

X. Liu Wei He Wenbin Liu Guoying Yin Hongyan Zhang

10.1016/j.isprsjprs.2023.10.007

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Citations (3)

An analysis of light spot extracting based on LED

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (2016)

Kai Ma Zhan Shi Chao Chen Xiaodong Pan Wenbin Liu

Light spot centroid detection is one of the key technologies in optical measurement. In order to overcome the poor stability caused by small scale spot, we proposed an extract method by using saturated light spot in this paper. By increasing the input voltage of LED and adjusting the exposure time of CCD, the image of LED which projected in the image plane become larger, it can help enhancing the stability of light spot centroid extracting. The experiment results showed that the extract stability of saturated light spot has improved obviously compared with small scale spot. This method can be adopted in close range measurement; it reflected the sub-pixel coordinate of spot in image plane coordinate more accurately after calibrating the distorted image.

Centroid

Image plane

10.1117/12.2242784

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Spatial-Temporal Dynamics of Cropping Frequency in Hubei Province over 2001–2015

Sensors (2017)

Jianbin Tao Wenbin Wu Wenbin Liu

Mapping crop patterns with remote sensing data is of great importance for agricultural production, food security and agricultural sustainability. In this paper, a hierarchical clustering method was proposed to map cropping frequency from time-series Moderate Resolution Imaging Spectroradiometer (MODIS) Enhanced Vegetation Indices (EVI) data and the spatial and temporal patterns of cropping frequency from 2001 to 2015 in Hubei Province of China were analyzed. The results are as follows: (1) The total double crop areas decreased slightly, while total single crop areas decreased significantly during 2001 and 2015; (2) The transfer between double crop and single crop was frequent in Hubei with about 11~15% croplands changed their cropping frequency every 5 years; (3) The crop system has obvious regional differentiation for their change trend at the county level.

Moderate-resolution imaging spectroradiometer

Cropping system

Multiple cropping

10.3390/s17112622

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CARM30: China annual rapeseed maps at 30 m spatial resolution from 2000 to 2022 using multi-source data

Scientific Data (2024)

Wenbin Liu Shu Li Jianbin Tao Xiangyu Liu Guoying Yin

Abstract Rapeseed is a critical cash crop globally, and understanding its distribution can assist in refined agricultural management, ensuring a sustainable vegetable oil supply, and informing government decisions. China is the leading consumer and third-largest producer of rapeseed. However, there is a lack of widely available, long-term, and large-scale remotely sensed maps on rapeseed cultivation in China. Here this study utilizes multi-source data such as satellite images, GLDAS environmental variables, land cover maps, and terrain data to create the China annual rapeseed maps at 30 m spatial resolution from 2000 to 2022 (CARM30). Our product was validated using independent samples and showed average F1 scores of 0.869 and 0.971 for winter and spring rapeseed. The CARM30 has high spatial consistency with existing 10 m and 20 m rapeseed maps. Additionally, the CARM30-derived rapeseed planted area was significantly correlated with agricultural statistics (R 2 = 0.65–0.86; p < 0.001). The obtained rapeseed distribution information can serve as a reference for stakeholders such as farmers, scientific communities, and decision-makers.

Cash crop

10.1038/s41597-024-03188-1

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A modified trace metal detection test for secondary imprints on porous substrates: A preliminary study

Forensic Science International (2018)

Zhuo Xing Ruiqin Yang Wenbin Liu Hongge Zhang

Suspect

TRACE (psycholinguistics)

Crime scene

Trace metal

10.1016/j.forsciint.2018.09.020

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Impact of Human Activities on the Propagation Dynamics from Meteorological to Hydrological Drought in the Nenjiang River Basin, Northeast China

Xubo Geng Xiaoping Lei Xiaoyan Song Junyao Zhang Wenbin Liu

10.2139/ssrn.4890448

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Economy Analysis and Energy Character of the Field Zoology System of the Compound Cultivation Paddyfield of Chinese Mitten Crab in the Three-Gorges Reservoir

Journal of Mountain Research (2005)

Cheng Ming-da Wenbin Liu

On the basic of the experiment of culturing Chinese Mitten Crab in Nanchong, Sichuan in 2002, the experiment of the compound paddy field cultivation of Chinese mitten crab was studied in Kai county (the verge of no-submerge Three Gorges Reservoir), Chongqing in 2003. The test was studied on the energy flow and the matter flow of the mode of the plant-cultivation of the field zoology system and the economy analysis. The experiment showed: the light utilization, the total nitrogen and ammonia nitrogen of the soil is higher percent of 15.7, 21.4 and 55.2 in the compound paddyfield cultivation of Chinese mitten crab than in the monoculture field. The preventive drug, administration, the dosage of the inorganic fertilizer and the cost of the machine in the growth of rice has decreased evidently. The total cost reduced also percent of 4.3 in the compound paddyfield cultivation. The input-output of the total energy, inorganic energy, organic energy was decreased to the percent of 35.1、51.0 and 31.6, respectively. The percent of 61.3 in the rice field is used not only as the nutrition of hydro bios and high plant but also as the feed of Chinese mitten crab, and the saltpeter ammonia is lower. The same time the tests and excreta of Chinese mitten crab may use as the nutrition of the soil and the fertilizer of the rice. Although in the experiment the decrease of output is less percent of 10.1,the decrease cost is percent of 20,the benefit is improved percent of 77.8. The rate of input-output is 1.54:1, and the profit is 6 381.49 yuan/hm~2. The net-profit of the paddyfield of Chinese mitten crab is 7 104.19 yuan/hm~2 and 44.3 times than the monoculture field.

Chinese mitten crab

Three gorges

Paddy field

Monoculture

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Impact of Human Activities on the Propagation Dynamics from Meteorological to Hydrological Drought in the Nenjiang River Basin, Northeast China

Xubo Geng Xiaoping Lei Xiaoyan Song Junyao Zhang Wenbin Liu

Download This Paper Open PDF in Browser Add Paper to My Library Share: Permalink Using these links will ensure access to this page indefinitely Copy URL Copy DOI

10.2139/ssrn.4841754

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A study of winter rape extraction at sub-pixel fusing multi-source data based on Artificial Neural Networks:A case study of Jianghan and Dongting Lake Plain

自然资源学报 (2019)

Wenbin Liu Jianbin Tao Meng Xu Ruiqing Chen Yang Guo

Abstract:

10.31497/zrzyxb.20190514

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Citations (1)

Membrane fouling reduction in a cost-effective integrated system of microbial fuel cell and membrane bioreactor

Water Science & Technology (2017)

Benai Cheng Jie Wang Wenbin Liu Cui Zhao Fanghua Bi

Microbial fuel cells (MFC) and membrane bioreactors (MBR) are promising technologies for wastewater treatment. However, both of them have some drawbacks and application limitations. A cost-effective hybrid system (EMBR) integrating MFC with MBR was evaluated in terms of treatment performance and membrane fouling. In this paper, two electric field directions with a membrane module in the middle were applied to explore the mechanism of membrane fouling mitigation in EMBRs. In both configurations of EMBRs, microbial activity and degradation ability of activated sludge for chemical oxygen demand and NH4+-N removals could be enhanced compared with those for the controlled MBR. In addition, the irreversible resistance significantly decreased, especially in the EMBR(-) with a longer operation time. Furthermore, two critical factors, namely enhanced bioflocculation and electrophoresis forces, were compared based on key parameters (zeta potential, particle size distribution and extracellular polymeric substances). The electrophoresis forces made a greater contribution to fouling alleviation than that conducted by the enhanced bioflocculation. The results suggested that EMBR, as a promising wastewater treatment technology, improved effluent quality and reduced energy consumption.

Membrane bioreactor

Membrane Fouling

10.2166/wst.2017.250

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Citations (9)