A5102004473- Hydrology and Watershed Management Studies
- Soil erosion and sediment transport
- Smart Agriculture and AI
- Plant Ecology and Soil Science
- Face and Expression Recognition
- Hydrology and Drought Analysis
- Soil Carbon and Nitrogen Dynamics
- Remote-Sensing Image Classification
- Web Data Mining and Analysis
- Climate variability and models
- Cryospheric studies and observations
- Advanced Algorithms and Applications
- Irrigation Practices and Water Management
- Remote Sensing and LiDAR Applications
- Groundwater and Isotope Geochemistry
- Remote Sensing in Agriculture
- Image Retrieval and Classification Techniques
- Hydrological Forecasting Using AI
- Power Systems and Technologies
- Multimodal Machine Learning Applications
- Hydraulic flow and structures
- Tree-ring climate responses
- Rangeland Management and Livestock Ecology
- Text and Document Classification Technologies
- Data Management and Algorithms
Northwest Normal University
2016-2024
Land Consolidation and Rehabilitation Center
2024
Soochow University
2021-2023
Ministry of Agriculture and Rural Affairs
2023
Tianjin University
2023
Ningbo University
2021
Soochow University
2019
Southwest University
2013
Wuhan University of Technology
2007
Different types of mulch are often used in agricultural production to enhance soil moisture and improve crop yields. The question which provides superior water retention arid regions, where resources scarce, is a major concern for production. We conducted observations studies at typical irrigated experimental station an zone with four mulch, including liquid (LM), biodegradable (BM), ordinary black (OBM), white (OWM), plots no mulch. Samples were collected analyzed 1, 3, 5, 7 days after each...
Urban waterfront spaces are often composed of built infrastructures and nature elements. Though citizens could take advantage these public to relax from daily work, its restorative potential has not been paid enough attention. In this study, the effect mechanism different audio visual elements in urban was systematically studied.At first stage, investigated with effects were identified through an on-site survey, which auditory forms environmental-nature, animal-nature, on-water human...
The Thornthwaite moisture index, an index of the supply water (precipitation) in area relative to climatic demand for (potential evapotranspiration), was used examine spatial and temporal variation drought verify influence environmental factors on Hengduan Mountains, China. Results indicate that Mountains had been increasing since 1960 with a rate 0.1938/yr. Annual between –97.47 67.43 heterogeneity obvious different seasons. high north low south, monsoon rainfall significant impact its...
<title>Abstract</title> Oasis agriculture is one of the main forms in world. Studying impact agricultural practices on soil organic carbon (SOC) within oases can provide valuable insights into dynamics input and sequestration oasis agriculture. It contribute to development well-reasoned policies. This work took farmland a typical inland river basin, Shiyang River Basin, arid areas as research object compared leading activities SOC. Samples were collected their SOC content was determined...
Drought propagation is a complex process, and understanding the mechanisms of meteorological drought to soil crucial for early warning, disaster prevention, mitigation. This study focuses on eight tributaries in upper reaches Shiyang River. Based Standardized Precipitation Index (SPI) Soil Moisture (SSMI), Propagation Intensity (DIP) Copula function were applied quantify intensity time from explored patterns at different temporal spatial scales these tributaries. Results showed that, 0–10 cm...
Nowadays web portals contain large amount of information that is meant for various visitors or groups [4]. To effectively navigate within the content website needs to "know" its users in order provide personalized them. We proposed a page recommendation model based on user context and collaborative filtering, aimed at predicting next request pages are potentially interested when surfing web. an improved Collaborative Filtering (CF) algorithm discover similar users' sets target user, which,...
Gravity Recovery and Climate Experiment (GRACE) satellite data are widely used in drought studies. In this study, we quantified severity based on land terrestrial water storage (TWS) changes GRACE data. We the deficit (WSD) index (WSDI) to identify events evaluate severity. The WSDI calculated by provides an effective assessment method when assessing extent of over large areas under a lack site results show total 22 central Asian dry zone during study period. During spring autumn, droughts...
Aiming at the problems of variable illumination, different fruit postures and interference main stem in natural greenhouse environment, this paper presents a new identification localization method for picking point truss tomato based on combination Mask R-CNN depth threshold segmentation. 679 clusters were detected greenhouse. The results showed that overall segmentation detection success rate ripe tomatoes reached 80.5%. On basis successfully obtaining optimal area, excluded background...
Soil organic carbon is very important to increase crop yield. Understanding the composition changes and migration characteristics of SOC under different irrigation conditions in arid oasis areas great significance for sustainable development agro-ecosystem estimation balance farmland ecosystem areas. In this paper, classical statistics geostatistics were used study leaching laws soil Minqin Oasis, amount loss process mechanism quantified. The research results showed that: (1) Irrigation...
Motion analysis is important in video surveillance systems and background subtraction useful for moving object detection such systems. However, most of the existing methods do not work well evening because objects are usually dark reflected light strong. To resolve these issues, we propose a framework that utilizes Weber contrast descriptor, texture feature extractor, unit, to extract features foreground objects. We local pattern enhancement method. For our method finding lighted areas have...
The Influence of Micro-blog User is essentially the interactions user to user. With greater one another user, influence will be bigger. existing researches about micro-blog are mainly aimed at Twitter and don't consider comment function, characteristic interdisciplinary intersectional domain micro-blog. In order fully those factors, we proposed classification algorithm based on KNN in This classifies all micro-blogs into 15 types depend Open Directory Project. It determines miro-blog...
Planting structure adjustment (PSA) affects agricultural water saving, and is an essential part of water-saving construction. This study introduced virtual theory innovatively constructed a model to assess the effects PSA in Shiyang River Basin over past 38 years, explore relationship between planting clarify most structure. The results showed that sown area economic crops consistently increased as food crop areas decreased four counties (districts) from 1980 2017. Being considered "big...
Climate change is the dominant factor affecting hydrological process, it of great significance to simulate and predict its influence on water resources management, socio-economic activities, sustainable development in future. In this paper, Xiying River Basin was taken as study area, China Atmospheric Assimilation Driven Data Set (CMADS) observation data from Jiutiaoling station were used runoff SWAT model calibrate verify parameters. On basis, basin under future climate scenario CMIP6...
To solve the problem of orchard environmental perception, a 2D LiDAR sensor was used to scan fruit trees on both sides test platform obtain their position. Firstly, two-dimensional iterative closest point (2D-ICP) algorithm complete cloud data sides. Then, combining lightning connection (LAPO) and density-based clustering (DBSCAN), tree detection method based (LAPO-DBSCAN) proposed. After obtaining using 2D-ICP algorithm, LAPO-DBSCAN position trees. The experimental results show that...
Fractionation of stable isotopes in precipitation runs through the water cycle, and deuterium excess is a second-order parameter linking water-stable oxygen hydrogen isotopes. It strongly influenced by under-cloud evaporation unsaturated air, especially arid climates. Based on improved Stewart model, this study used 670 isotope data measured meteorological element from 11 sampling points January 2018 to September 2019 verify existence sub-cloud secondary Shiyang river basin quantitatively...
In recent years, spectral clustering has become one of the most popular algorithms for image segmentation. However, it restricted applicability to large-scale images due its high computational complexity. this paper, we first propose a novel algorithm called Fast Spectral Clustering based on quad-tree decomposition. The focuses at superpixel level and complexity is O(nlogn) + O(m) O(m^(3/2)); memory cost O(m), where n m are numbers pixels superpixels image. Then Multiscale by improving...