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Information extraction and dynamic evaluation of soil salinization with a remote sensing method in a typical county on the huang-Huai-Hai Plain of China

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Pedosphere 2020年第4期30卷 496-507页

作者： Xiaoguang ZHANG Biao huang Feng LIU State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008(China) Key Laboratory of Soil Environment and Pollution Remediation Institute of Soil ScienceChinese Academy of SciencesNanjing 210008(China) College of Resource and Environment Qingdao Agricultural UniversityQingdao 266109(China)

Monitoring the dynamics of soil salinization is of great importance for agricultural *** study selected Yucheng County,a typical county on the huang-Huai-Hai Plain(HHHP)of China,as the study area and evaluated the spatial and temporal variation of soil *** methods,consisting of principal component analysis(PCA)transformation,tasseled cap(TC)transformation,and optimal band combination(OBC),were used to extract information from an early Landsat multispectral scanner(MSS)image from 1984,and their advantages were *** addition,OBC was used on a thematic mapper(TM)image from *** iteratively self-organizing data analysis algorithm was used together with prior knowledge of likely classifications to interpret the MSS and TM images for data ***,a transfer matrix method was used to assess the spatial and temporal variability of soil salinization and analyze the driving factors of soil *** to PCA transformation and OBC,TC transformation was a more effective method for extracting soil salinization information from the MSS *** results indicate that a soil area of approximately 298 km^2was affected by salinity in 1984 in Yucheng County,of which 5.40%,11.96%,and 12.75%were classified as being subject to slight,moderate,and severe salinization,*** 2009,the saline area was reduced to only 146 km^2,of which 10.70%and 3.75%were characterized by slight to moderate salinization and no severe salinization,*** saline land decreased at an average rate of 6 km^2per *** decrease was probably a result of lower groundwater depth,increased organic fertilizer or crop straw in soil,changed land use type,and increased vegetation coverage.

关键词： Landsat multispectral scanner optimal band combination principal component analysis soil salinity tasseled cap thematic mapper

Acid and Alkali Buffer Capacity of Typical Fluvor-Aquic Soil in huang-Huai-Hai Plain

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Agricultural Sciences in China 2009年第11期8卷 1378-1383页

作者： huang Ping ZHANG Jia-bao ZHU An-ning ZHANG Cong-zhi State Environmental Station ofAgro-Ecosystem of Fengqiu State Key Laboratory of Soil Sustainable Agriculture Institute of Soil Science Chinese Academy of Sciences Nanjing 210008 P.R.China Graduate School Chinese Academy of Sciences Beijing 100049 P.R. China

Soil acid and alkali buffer capacity, as a major indicator for evaluating its vulnerability and resistibility to acidification and alkalization, is an important factor affecting the sustainable agriculture, through knowledge on which soil acidification process can be predicted and modified. In this study, titration curve method was adopted to investigate the pH buffer capacity （pHBC） of fluvor-aquic soil, and separate titration curves were established by adding incremental amounts of either standardized hydrochloric acid （HC1）（0.12 mol L^-1） or sodium hydroxide （NaOH）（0.10 mol L^-1） to soil suspended in deionized water （soil：solution = 1：5）. Soil pH was measured after 7 d resuspension and isothermal equilibrium （T = 25℃）. Linear regressions were fitted to the linear portion of each titration curve and the slopes of these lines were derived as the soil pHBC. The results showed that significant correlations between the amounts of adding acid or alkali and each pH change were presented, and titration curve method was feasible for measurement of pHBC on typical fluvor-aquic soil in huang-Huai-Hai Plain, and the coefficients of determination were higher than the similar researches on acid soil （R^2 = 0.96）. The slope-derived pHBC of acid and alkali were 158.71 and 25.02 mmol kg^-1, respectively. According to the classification of soil buffer systems, the soil tested belongs to the calcium carbonate buffer system, carbonates contribute the most to pHBC, and the contribution of soil organic matter relatively less than it.

关键词： fluvor-aquic soil huang-Huai-Hai Plain pH buffer capacity (pHBC)

Effects of meteorological factors on different grades of winter wheat growth in the huang-Huai-Hai Plain, China

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Journal of Integrative Agriculture 2016年第11期15卷 2647-2657页

作者： huang Qing WANG Li-min CHEN Zhong-xin LIU Hang Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural Sciences

The sown area of winter wheat in the huang-Huai-Hai（HHH） Plain accounts for over 65% of the total sown area of winter wheat in China. Thus, it is important to monitor the winter wheat growth condition and reveal the main factors that influence its dynamics. This study assessed the winter wheat growth condition based on remote sensing data, and investigated the correlations between different grades of winter wheat growth and major meteorological factors corresponding. First, winter wheat growth condition from sowing until maturity stage during 2011–2012 were assessed based on moderate-resolution imaging spectroradiometer（MODIS） normalized difference vegetation index（NDVI） time-series dataset. Next, correlation analysis and geographical information system（GIS） spatial analysis methods were used to analyze the lag correlations between different grades of winter wheat growth in each phenophase and the meteorological factors that corresponded to the phenophases. The results showed that the winter wheat growth conditions varied over time and space in the study area. Irrespective of the grades of winter wheat growth, the correlation coefficients between the winter wheat growth condition and the cumulative precipitation were higher than zero lag（synchronous precipitation） and one lag（pre-phenophase precipitation） based on the average values of seven phenophases. This showed that the cumulative precipitation during the entire growing season had a greater effect on winter wheat growth than the synchronous precipitation and the pre-phenophase precipitation. The effects of temperature on winter wheat growth varied according to different grades of winter wheat growth based on the average values of seven phenophases. Winter wheat with a better-than-average growth condition had a stronger correlation with synchronous temperature, winter wheat with a normal growth condition had a stronger correlation with the cumulative temperature, and winter wheat with a worse-than-average growth

关键词： growth condition meteorological factors remote sensing spatiotemporal correlation winter wheat huangHuai-Hai(HHH) Plain region China

Metabonomics delineates allergic reactions induced by Shuang-huang-lian injection in rats using ultra performance liquid chromatography-mass spectrometry

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Chinese Journal of Natural Medicines 2018年第8期16卷 628-640页

作者： GU Yuan-Yuan SHI Lang ZHANG Dan-Dan huang Xin CHEN Da-Zhong Research Institute of Traditional Chinese Medicine Heilongjiang University of Chinese Medicine First Clinical Medical College Heilongjiang University of Chinese Medicine

Shuang-huang-lian Injection(SHLI) is the first successfully developed drug from traditional Chinese medicine(TCM) powder for injection,since its use for the treatment of acute respiratory tract infection,pneumonia,influenza,*** the same time,its allergic reactions have also emerged,which limits clinical ***,few scholars pay attention to the mechanism of allergic *** this present study,metabonomics technology was used to explore the changes in endogenous metabolites in urine of the rat model of SHLI induced allergic reaction;we and analyzed the metabolites,metabolic pathway,and the mechanism which were closely related to the allergic *** levels of serum histamine and tryptase were examined and changes in histomorphology were also *** on the UPLC-Q-TOF/MS metabonomics,we carried out the pattern recognition analysis,selected potential biomarkers associated with allergic reactions,and explored the pathological mechanism for SHLI induced allergic reaction,which laid the foundation for the safety research of *** results showed that SHLI increased the levels of serum histamine and tryptase in rats with allergic reaction;we determined 15 biomarkers in rat allergic reaction model induced by SHLI and found multiple metabolic pathways involved,such as metabolism of linolenic acid,phenylalanine,amino acid,2-oxo acid,and purine and other metabolic pathways.

关键词： Shuang-huang-lian injection Biomarker Metabonomics Allergic mechanism Metabolites

扬声器非线性特性的Hilbert-huang变换分析

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浙江大学学报（工学版） 2005年第3期39卷 385-391页

作者：黄海浙江大学仪器科学与工程学系浙江杭州310027

为研究扬声器的非线性特性和形成机理,提出一种基于Hilbert huang变换(HHT)的扬声器非线性特性分析方法.该方法通过对扬声器纸盆位移信号进行经验模态分解(EMD)得到内禀模态函数(IMF),计算出 IMF函数的瞬时频率.用瞬时频率的变化表示纸... 详细信息

为研究扬声器的非线性特性和形成机理,提出一种基于Hilbert huang变换(HHT)的扬声器非线性特性分析方法.该方法通过对扬声器纸盆位移信号进行经验模态分解(EMD)得到内禀模态函数(IMF),计算出 IMF函数的瞬时频率.用瞬时频率的变化表示纸盆位移信号波内频率调制的非线性现象,直接反映出与扬声器结构相关联的非线性特性.仿真和实际扬声器实验结果表明,用HHT瞬时频率表示扬声器非线性的方法与传统的傅立叶谐波方法相比,能更确切地说明产生非线性的原因,给扬声器非线性的改善与补偿提供了依据.

关键词：扬声器 Hilbert-huang变换非线性瞬时频率

Systematics and Species Validity of the Dabieshan Pit Viper Protobothrops dabieshanensis huang et al. 2012: Evidence from a Mitochondrial Gene Sequence Analysis

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Asian Herpetological Research 2013年第4期4卷 282-287页

作者： Baowei ZHANG Xin huang Tao PAN Liang ZHANG Wenliang ZHOU Tao SONG Demin HAN School of Life Sciences Anhui University Guangdong Entomological Institute and South China Institute of Endangered Animals

Aimed to evaluate the phylogenetic position of the recently described Protobothrops dabieshanensis huang et al. （2012）, phylogenic relationships of 12 species within Protobothrops based on four mtDNA gene fragments （12S RNA, 16S RNA, ND4 and Cyt b） were reconstructed in our study. The result indicates a clade composed ofP dabiesha- nensis, P. jerdonii and P xiangchengsis with strong support. The genetic distance among P dabieshanensis, P jerdonii and P xiangchengsis was much lower than other congeners. Based on the data from the phylogenetic analysis and pre- viously described morphological differences, we conclude that P dabieshanensis is a valid species with close affinities to P jerdonii and P xiangchengsis.

关键词： phylogeny Crotalinae systematics venomous snakes

Servile Straw Mat and Precious Memory——Impression of huang Ming's Still Life

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China Population Today 2013年第1期30卷 37-43页

作者： Yong huang

Almost in the same period of time, I was acquainted with huang Ming, Fan Bo and Lei Bo. Five years ago, huang Ming was a neighbor of Fan Bo when he lived in Beijing. So, if I visited one of them, the other one would be called to join the gathering. It was interesting to discover although they had totally different personality and style of painting, they had one single commonality in the form of expression, which gave me the deepest impression. Their paintings showed two core elements. In many paintings of Fan, you would see a withered tree and a man under the tree; while in many of huang's paintings, you would see an aged object and a straw mat underneath.

关键词：草席印象记忆静物

huang Jingsheng, “Station Master with Iron Man Spirit” in the New Era

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China Oil & Gas 2020年第4期27卷 25-26页

作者： huang Jingsheng Xiliu No.10 Oil Interchange Station Xiliu Oil Production AreaNo.1 Oil Production Plant of Huabei Oilfield Company

huang Jingsheng,55 years old,has been rooted in the production line for 37 *** the oil spirit of“dedication and earnestness,and three values four musts”,the innovation spirit of commitment to reform and excellence,and the passion and devotion to work,he deserves to be the iron man of the era and an excellent representative of industrial workers in the new ***.1 Oil Production Plant named him as“Station Master with Iron Man Spirit”,and Xiliu No.10 Oil Interchange Station as“huang Jingsheng Station”.

关键词： Master Spirit Jing

huang's three-step maneuver for laparoscopic spleen-preserving No.10 lymph node dissection for advanced proximal gastric cancer

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Chinese Journal of Cancer Research 2014年第2期26卷 208-210页

作者： Chang-Ming huang Qi-Yue Chen Jian-Xian Lin Chao-Hui Zheng Ping Li Jian-Wei Xie Department of Gastric Surgery Fujian Medical University Union Hospital

Due to the complexity of the splenic hilar vessels, their anatomical variation and the narrow and deep space, as well as the bleeding-prone splenic parenchyma and the difficulty to manage splenic or vascular bleeding at the splenic hilum,the procedure remains challenging and technically demanding procedure for the performance of laparoscopic pancreas- and spleen-preserving splenic hilar lymph nodes dissection. Based on our experiences, we gradually explored a set of procednral operation steps called ＂huang＇s three-step maneuver＂. In this paper, we not only provide the concrete operation steps for the surgeon, but we also provide our recommended technique of pulling and exposure for assistants. This new maneuver simplifies the complicated procedure and improves the efficiency of laparoscopic spleen-preserving splenic hilar lymphadenectomy, making it easier to master and allowing for its widespread adoption.

关键词： Stomach neoplasms spleen preservation laparoscopy lymph node dissection