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Effects of soil organic matter components and iron aluminum oxides on aggregate stability during vegetation succession in granite red soil eroded areas

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Journal of Mountain Science 2022年第9期19卷 2634-2650页

作者： LIN Zhe huang zhi-gang LIAO Da-lan huang Wan-xia huang Juan DENG Yu-song Guangxi Key Laboratory of Forest Ecology and Conservation College of ForestryGuangxi UniversityNanningGuangxi 530004China College of Agriculture Guangxi UniversityNanningGuangxi 530004China

Soil aggregates determine the basic structure of soil,and their composition and stability are influenced by the various types of cementitious substances occurring in *** explore the main limiting factors of soil aggregation in the process of vegetation succession with granite as the parent material,five stages of vegetation succession in an eroded area were selected:bare land(BL),grassland(GL),grassland shrub transition land(GS),shrubland(SL)and secondary forest(SF).Soil samples were collected to determine the composition and stability of *** contents of organic and inorganic cementitious substances,including organic matter components and iron aluminum oxides,were determined at five soil aggregate grain *** results indicated that the stability of soil aggregates and the>0.25 mm water-stable aggregate content(WR_(0.25))increased with vegetation *** on the Le Bissonnais(LB)method,the mean weight diameter(MWD)of soil aggregates increased,and the relative dissipation index(RSI)and relative mechanical crushing index(RMI)*** humic acid(HA)and fulvic acid(FA)contents in soil aggregates increased with vegetation succession,and the soil humus content at the SF stage increased by more than 13.54%over the BL *** different vegetation succession stage,the iron and aluminum oxides for the SL and the SF were at a high level,and the contents of free-form iron oxide(Fe_(d))and amorphous iron oxide(Fe_(o))for BL were *** analysis indicated that the soil humic degree(PQ)and the contents of amorphous alumina(Al_(o))were positively correlated with aggregate stability to varying *** analysis(RDA)revealed that PQ values of 1-2 mm(PQ_(2))and 0.25-0.5 mm(PQ_(4))aggregates,the contents of Fe_(o) of bulk soil(Fe_(oB)),>2 mm(Fe_(o1)),1-2 mm(Fe_(o2)),and2 mm(Al_(o1))aggregates could explain 99.4%of the changes in soil aggregate stability at different vegetati

关键词： Soil aggregate stability Vegetation succession Soil organic matter components Iron aluminum oxides

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A novel impedance immunosensor based on O-phenylenediamine modified gold electrode to analyze abscisic acid

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Chinese Chemical Letters 2010年第4期21卷 472-475页

作者： Li, Qian Wang, Ruo Zhong huang, zhi gang Li, He Song Xiao, Lang Tao Hunan Agr Univ Hunan Prov Key Lab Crop Germplasm Innovat & Utili Hunan Prov Key Lab Phytohormones & Growth Dev Changsha 410128 Hunan Peoples R China

An impedance immunosensor based on O-phenylenediamine modified gold electrode for the determination of phytohormone abscisic acid(ABA) was *** operating pH,absorption time,absorption temperature and concentration of anti-ABA antibody were investigated to optimize the analytical *** calibration curve for the determination of ABA was obtained from this impedance immunosensor under optimal *** results showed that the detection limit at about 1 ng/mL in the range of 10-5000 ng/mL...

关键词： O-Phenylenediamine Abscisic acid Immunosensor

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Characteristics of the Mesophyllous Cells in the Sheaths of Rice (Oryza sativa L.)

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Agricultural Sciences in China 2011年第9期10卷 1354-1364页

作者： GUO Zhao-wu DENG Hua- feng LI Shu-yuan XIAO Lang-tao huang zhi-yuan HE Qiang huang zhi-gang LI He-song WANG Ruo-zhong School of Chemistry and Biological Engineering Changsha University of Science ＆ Technology Changsha 410114 P.R.China Hunan Hybrid Rice Research Center Changsha 410125 P.R. China Beijing Deweizhi Biological Engineering Technology Co. Ltd. Beijing 100016 P.R. China Hunan Provincial Key Laboratory of Phytohormones and Growth Development Hunan Agricultural University Changsha 410128 P.R. China

The photosynthesis of rice sheath plays a significant role to furnish rice yield, and it is accounted for 10 to 20% of the final yield. But, limited studies have been done to address this phenomenon and to characterize the mesophyllous cells of rice sheath and how it may attribute to the rice yield. In this paper, super hybrid rice Liangyoupeijiu, its parents Wumang 9311 and Peiai 64S, and hybrid rice Shanyou 63 were studied as the experimental materials, and the characteristics of the mesophyllous cells of rice sheaths were examined by microscopic and super-microscopic observation as well as chlorophyll absorption spectrums. The results showed that rice sheath was rich in the intact mesophyllous cells full of chloroplasts, grana and thylakoids, which were much the same as those of rice blade. The absorption spectrum curves of the Chl. a and b of the sheaths were similar to those of the blades. The stomatal density in the outer epidermises of the sheaths was comparable to those in the up- and down-epidermises of the blades. The significant tests proved that the amount of chloroplast per mesophyllous cell of the sheaths was almost the same as those of the blades, and the mesophyllous cells in the sheaths were also rich in chlorophylls. The chlorophyll content of rice sheath reached about 50% of the chlorophyll content of rice blade, and the P, of the sheath/the blade ranged from 13.60 to 34.57%. Therefore, rice sheath was also full of the intact photosynthetic apparatus similar to those in rice blade, and had capabilities of photosynthesis. The statistical analysis revealed that the physiological senescence of the photosynthetic apparatus in both the sheath and the blade of Liangyoupeijiu was significantly slower than those of the other varieties at the late stages. The profuse grain-filling stage was an inflexion point of the physiological senescence of the chloroplasts and the chlorophylls of both the blades and the sheaths.

关键词： rice sheath mesophyllous cell characteristic

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Treatment of Uroschesis due to Spinal Cord Injury by Acupuncture in 32 Cases

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Journal of Acupuncture and Tuina Science 2003年第3期1卷 35-36页

作者： huang zhi-gang YOU Bin First Hospital Sanming Municipal Fujian 365000 China First Hospital Sanming Municipal Fujian 365000 China

Treated uroschesis due to spinal cord injury in 32 cases with acupuncture therapy (acupuncture group) and compared with Neostigmine injection (control group). In acupucture group, 10 cases got clinical recovery, 17 efficacy and 5 inefficacy, with an effective rate of 84.4%; among 32 cases in control group, 3 cases got clinical recovery, 15 efficacy and 14 inefficacy, the effective rate was 56.2%. Key Words Acupuncture Therapy - Spinal Cord Injuries - Uroschesie Author: huang zhi-gang (1967-), male, attending physician

关键词： Acupuncture Therapy Spinal Cord Injuries Uroschesie

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Study of heteroserum-induced rat liver fibrosis model and its mechanism

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World Journal of Gastroenterology 1998年第3期4卷 26-29页

作者： huang zhi gang, ZHAI Wei Rong, ZHANG Yue E and ZHANG Xiu Rong

AIM To investigate the morphological changes in the process of heteroserum induced rat liver fibrosis and the mechanism of fibrogenesis of this model. METHODS A model of heteroserum induced rat liver fibrosis was established by intraperitoneal injection of porcine serum. In addition to the observation of the morphological changes of this model, the infiltration of eosinophils and mast cells were measured quantitatively and the deposition of IgG and complement C 3 was detected by immunofluorescence. RESULTS The rat liver fibrosis was induced successfully at the end of the 8th week after the injection of heteroserum. Besides the increase of hepatic stellate cells (HSC) during the process of liver fibrosis, proliferation and activation of primary mesenchyma cells (PMCs) were also found. In the early stage, the infiltration of eosinophils and mast cells was significantly increased and the deposition of IgG and complement C 3 was positive in the portal tracts and septa, while gradually reduced after the injection was stopped. CONCLUSIONS This model is suitable for the research on liver fibrogenesis; the pathogenesis of this model may be related with the allergen induced late phase reaction (LPR) caused by the injection of heteroserum, and the HSCs and the PMCs are important sources of ECM producing cells.

关键词： liver cirrhosis heteroserum disease models, animal liver/pathology mast cell IgG complement C 3 rats

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鄂尔多斯盆地东南缘白垩纪以来构造演化的裂变径迹证据

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地球物理学报 2016年第10期59卷 3753-3764页

作者：黄志刚任战利高龙刚太原理工大学地球科学系太原030024 西北大学地质学系西安710069

鄂尔多斯盆地东南缘处于渭北隆起、晋西挠褶带和东秦岭造山带的转折地带,构造位置独特,演化历史复杂.本文选取东缘韩城地区和南缘东秦岭洛南地区上三叠统延长组为研究对象,采集6件砂岩样品进行锆石、磷灰石裂变径迹分析,对关键构造-热... 详细信息

鄂尔多斯盆地东南缘处于渭北隆起、晋西挠褶带和东秦岭造山带的转折地带,构造位置独特,演化历史复杂.本文选取东缘韩城地区和南缘东秦岭洛南地区上三叠统延长组为研究对象,采集6件砂岩样品进行锆石、磷灰石裂变径迹分析,对关键构造-热事件提供热年代学约束,恢复盆地东南缘不同构造带的热演化史,深化对盆地东南部油气资源赋存条件的认识,以期实现油气勘探的新突破.研究表明韩城和洛南地区的抬升冷却史存在明显差异.磷灰石裂变径迹年龄表现为从南到北减小的趋势.东缘韩城剖面磷灰石裂变径迹记录51.6~66.3 Ma、33 Ma两次抬升冷却的峰值年龄.南缘洛南剖面锆石裂变径迹年龄和磷灰石裂变径迹年龄分别记录89~106 Ma和59~66 Ma的冷却抬升年龄.洛南地区抬升冷却时间较早,剥蚀速率（106m/Ma）大于韩城地区（68m/Ma）,且持续时间长.磷灰石裂变径迹（Apatite Fission Track,AFT）热史模拟显示,晚中生代,受燕山运动的影响,东秦岭地区发生强烈的构造岩浆事件,洛南地区热演化程度明显高于韩城地区.洛南剖面的热演化主要受岩浆活动的控制,韩城剖面为埋藏增温型.鄂尔多斯盆地东南缘的裂变径迹年龄格局基本受控于白垩纪以来的抬升冷却事件.

关键词：裂变径迹抬升过程热史模拟延长组鄂尔多斯盆地东南缘

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交通区位性能与大型铁路客站对交通资源的整合作用

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铁道学报 2011年第6期33卷 8-13页

作者：黄志刚荣朝和中国南方航空股份有限公司广东广州510406 北京交通大学经济管理学院北京100044

本文提出交通区位性能的概念,构建基于交通区位性能视角的大型铁路客站对交通资源整合作用的理论解释框架,以此来探讨网络中枢纽节点的资源配置效率与网络效率之间的内在关系,并从交通资源、运输产品以及运输业网络经济的角度对框架进... 详细信息

本文提出交通区位性能的概念,构建基于交通区位性能视角的大型铁路客站对交通资源整合作用的理论解释框架,以此来探讨网络中枢纽节点的资源配置效率与网络效率之间的内在关系,并从交通资源、运输产品以及运输业网络经济的角度对框架进行分析论证。大型铁路客站的交通区位性能是决定客站能否充分发挥整合作用的关键因素,铁路客站通过提升其交通区位性能而有效发挥对交通资源的整合作用,并表现为通过提高交通资源的耦合程度、改善运输产品及服务质量、实现运输业网络经济而最终达到提高网络效率的目的。

关键词：大型铁路客站交通区位性能交通资源资源整合网络效率

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Use of preoperative ultrasound in designing the true pectoralis major myocutaneous island flap

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Chinese Medical Journal 2012年第4期125卷 667-670页

作者： Chen Xiao-hong Zhao Han-xue Fang Ju-gao Yu Zhen-kun huang zhi-gang Capital Med Univ Key Lab Otolaryngol Head & Neck Surg Dept Otolaryngol Head & Neck SurgMinist Educ Beijing Tongren HospBeijing Inst Otolaryngol Beijing 100730 Peoples R China Capital Med Univ Beijing Tongren Hosp Dept Ultrasound Beijing 100730 Peoples R China

Background Traditional techniques used for harvesting the pectoralis major myocutaneous （PMMC） flap have accompanying disadvantages,such as the necessity for an upper chest skin incision,the bulkiness of myocutaneous tissue at the pedicle of the flap,and the risk of total or partial necrosis of flap *** aim of this study was to develop a safe and fast method for preparing PMMC island flaps using preoperative ultrasonography for vessel *** Forty-one PMMC island flaps were used for one-stage reconstruction of head and neck defects,including 21 cases in the treatment group and 20 cases in the control *** the treatment group,ultrasonography was used to mark out the course of the thoracic branches of the thoracoacromial artery and the lower end of this artery perforating from the fascia into the muscles,as well as the largest perforating branch of the fourth or fifth internal mammary artery entering the PMMC flap.A line,from the lower end of the thoracic branch to the largest perforating branch of the fourth or fifth internal mammary artery,was drawn to determine the axis of the PMMC *** the control group,PMMC island flaps were designed according to conventional methods without using *** According to the ultrasonic marks,the distance from lower end of thoracic branch to the midpoint of the margin of the inferior clavicular was （5.1±1.2） *** time from designing to transferring the island flap was significantly shorter in the treatment group （（51.0±10.5） minutes） compared with the control group （（78.0±13.9） minutes,P 〈0.01）.The rate of partial necrosis was 4.7% （1/21） in the treatment group and 35.0% （7/20） in the control *** was one case of flap failure in the control group due to vascular injury during vascular pedicle *** Preoperative vessel detection by ultrasonography facilitates easy and safe harvesting of the true PMMC island flap.

关键词： ultrasonic pectoralis major island flap reconstruction surgery

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中国宏观经济管理的演变和创新发展

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上海经济研究 2023年第12期 99-110页

作者：黄志钢中国社会科学院经济研究所 100836

中国宏观经济治理现代化是推进和拓展中国式现代化的重要基础,对它形成的历史逻辑进行学理分析具有十分重大的意义。本文以经济史为基础,以揭示人类社会发展规律的唯物史观为方法论,对计划经济总供求管理下的综合平衡阶段及其转向市场... 详细信息

中国宏观经济治理现代化是推进和拓展中国式现代化的重要基础,对它形成的历史逻辑进行学理分析具有十分重大的意义。本文以经济史为基础,以揭示人类社会发展规律的唯物史观为方法论,对计划经济总供求管理下的综合平衡阶段及其转向市场体制下宏观调控体系的过渡期的宏观经济管理、社会主义市场经济体制总需求管理下的宏观调控阶段及其转向需求侧与供给侧并重的过渡期的宏观经济管理、新时代以供给侧结构性改革为核心的宏观经济管理,以及新发展阶段推进宏观经济治理现代化等四个阶段和两个过渡期的宏观经济管理思想演变进行了梳理,将宏观经济治理主要特色概括为:注重顶层设计,突出宏观经济治理的战略导向;增加跨周期政策设计、在短期波动和长期增长之间进行科学抉择;注重从供给侧发力,推动需求侧管理与供给侧改革有效协同等三个方面。

关键词：综合平衡宏观调控供给侧结构性改革宏观经济治理现代化

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超越整函数的某些动力学性质(英文)

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数学杂志 2011年第6期31卷 1024-1030页

作者：黄志刚苏州科技学院数理学院江苏苏州215011

本文研究了由m个超越整函数{f_1,f_2,…,f_m}生成的随机迭代系统的Fatou集分支的某些动力学性质.运用复动力系统理论与双曲度量理论,得到了随机迭代系统有界Fatou分支不存在的一个判别准则,同时回答了Baker所提出的问题,且给出了随机迭... 详细信息

本文研究了由m个超越整函数{f_1,f_2,…,f_m}生成的随机迭代系统的Fatou集分支的某些动力学性质.运用复动力系统理论与双曲度量理论,得到了随机迭代系统有界Fatou分支不存在的一个判别准则,同时回答了Baker所提出的问题,且给出了随机迭代系统Fatou分支为单连通的一个充分条件,推广了Bergweiler的结果.

关键词：有界分支 Fatou集超越整函数单连通

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