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Effect of salinization on soil properties and mechanisms beneficial to microorganisms in salinized soil remediation-a review

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Research in Cold and Arid Regions 2024年第3期16卷 121-128页

作者： Jing Pan Xian Xue cuihua huang QuanGang You PingLin Guo RuiQi Yang FuWen Da ZhenWei Duan Fei Peng Drylands Salinization Research Station Key Laboratory of Desert and DesertificationNorthwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhouGansu 730000China University of Chinese Academy of Sciences Beijing 100049China College of Urban Environment Lanzhou City UniversityLanzhouGansu 730070China College of Geographical Science Qinghai Normal UniversityXiningQinghai 810016China Wuwei Academy of Agricultural Sciences WuweiGansu 733000China Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands LanzhouGansu 730070China

Salinized soil is an important reserved arable land resource in *** management and utilization of salinized soil can safeguard the current size of arable land and a stable grain *** accumulation will lead to the deterioration of soil properties,destroy soil production potential and damage soil ecological functions,which in turn will threaten global water and soil resources and food security,and affect sustainable socio-economic *** are important components of salinized *** remediation is an important research tool in improving salinized soil and is key to realizing sustainable development of agriculture and the *** about the impact of salinization on soil properties and measures using microorganisms in remediation of salinized soil has grown over ***,the mechanisms governing these impacts and the ecological principles for microbial remediation are ***,it is imperative to summarize the effects of salinization on soil physical,chemical,and microbial properties,and then review the related mechanisms of halophilic and halotolerant microorganisms in salinized soil remediation via direct and indirect *** stability,persistence,and safety of the microbial remediation effect is also highlighted in this review to further promote the application of microbial remediation in salinized *** objective of this review is to provide reference and theoretical support for the improvement and utilization of salinized soil.

关键词： Salinized soil Microbial remediation Halophilic and halotolerant microorganisms Soil properties

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民勤荒漠绿洲过渡带粘土夹层水力性质及其生态水文意义探讨

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干旱区资源与环境 2024年第1期38卷 114-122页

作者：刘斐耀尤全刚薛娴黄翠华潘晶张丽娟衡阳师范学院地理与旅游学院衡阳421000 中国科学院西北生态环境资源研究院干旱区盐渍化研究站民勤733300 中国科学院沙漠与沙漠化重点实验室兰州730000 衡阳师范学院外国语学院衡阳421000

土壤水力性质是土壤水文功能的重要组成部分及影响因子,其对土壤水分分布状态、土壤水分循环的强度与速率具有重要影响。粘土夹层虽在干旱区呈不连续分布的状态,但其植被覆盖率却远高于相同水热条件下的非夹粘土壤。文中以民勤荒漠绿洲... 详细信息

土壤水力性质是土壤水文功能的重要组成部分及影响因子,其对土壤水分分布状态、土壤水分循环的强度与速率具有重要影响。粘土夹层虽在干旱区呈不连续分布的状态,但其植被覆盖率却远高于相同水热条件下的非夹粘土壤。文中以民勤荒漠绿洲过渡带粘土夹层为研究对象,对其土壤物理性质、土壤持水性和导水性质进行测量,同时利用壕沟法对该地15年林龄的深根系乡土物种多枝柽柳根系进行了调查,分析了夹粘土壤剖面的水力性质变化特征及其影响因素,探讨了粘土夹层对干旱区植被恢复和重建的生态水文意义。结果表明:1)土壤颗粒组成和有机质含量是影响土壤持水性和导水性的重要因子。2)15年林龄多枝柽柳根系生物量(d<2mm)在粘土夹层上下界面处呈现明显增加的趋势。3)粘土夹层具有较高的持水性,其可通过毛管作用补给其他土层,同时,粘土夹层阻滞了土壤水分的运移,二者的共同作用改善了粘土夹层上下界面处的土壤水分条件。粘土夹层可以改变土壤水分入渗和存储的环境,在含有粘土夹层的土壤上进行植被建设,有助于干旱区固沙植被的恢复和建设。文中研究为了解荒漠绿洲过渡带土壤水文过程、生态恢复和重建提供了一定的数据支持。

关键词：粘土质夹层土壤水力性质生态水文意义荒漠绿洲过渡带

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盐胁迫对干旱区植物能量代谢过程的影响综述

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中国沙漠 2024年第1期44卷 111-118页

作者：潘晶王磊黄翠华尤全刚郭平林郭琪薛娴中国科学院西北生态环境资源研究院、沙漠与沙漠化重点实验室干旱区盐渍化研究站甘肃兰州730000 甘肃省水利厅石羊河流域水资源利用中心甘肃武威733000 中国科学院大学北京100049 甘肃省科学院生物研究所、甘肃省微生物资源开发利用重点实验室“特色微生物与植物资源创新”甘肃省国际科技合作基地甘肃兰州730000

盐胁迫是影响干旱区植物生长的重要非生物胁迫,会干扰植物能量代谢过程,进而对植物的生长发育产生不良影响。盐胁迫条件下植物是否具有稳定的能量供应与其耐盐性能密切相关。本文从植物种子萌发、营养生长和生殖生长等3个阶段入手,浅析... 详细信息

盐胁迫是影响干旱区植物生长的重要非生物胁迫,会干扰植物能量代谢过程,进而对植物的生长发育产生不良影响。盐胁迫条件下植物是否具有稳定的能量供应与其耐盐性能密切相关。本文从植物种子萌发、营养生长和生殖生长等3个阶段入手,浅析土壤盐分增加造成的渗透胁迫、离子胁迫、营养亏缺、氧化胁迫和光合损伤等对植物能量产生与消耗的影响,以期为提高干旱区植物的耐盐性能和合理利用盐碱地提供理论依据和参考。

关键词：盐胁迫能量代谢种子萌发营养生长生殖生长

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Quantitative retrieval of soil salt content based on measured spectral data

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Research in Cold and Arid Regions 2016年第6期8卷 507-515页

作者： HanChen Duan Tao Wang Xian Xue cuihua huang ChangZhen Yan Key Laboratory of Desert and Desertification Northwest Institute of Eco-Environment and Resources Chinese Academy of Sciences

Choosing the Minqin Oasis, located downstream of the Shiyang River in Northwest China, as the study area, we used field-measured hyperspectral data and laboratory-measured soil salt content data to analyze the characteristics of saline soil spectral reflectance and its transformation in the area, and elucidated the relations between the soil spectral re-flectance, reflectance transformation, and soil salt content. In addition, we screened sensitive wavebands. Then, a multiple linear regression model was established to predict the soil salt content based on the measured spectral data, and the accuracy of the model was verified using field-measured salinity data. The results showed that the overall shapes of the spectral curves of soils with different degrees of salinity were consistent, and the reflectance in visible and near-infrared bands for salinized soil was higher than that for non-salinized soil. After differential transformation, the correlation coefficient between the spectral reflectance and soil salt content was obviously improved. The first-order differential transformation model based on the logarithm of the reciprocal of saline soil spectral reflectance produced the highest accuracy and stability in the bands at 462 and 636 nm; the determination coefficient was 0.603, and the root mean square error was 5.407. Thus, the proposed model provides a good reference for the quantitative extraction and monitoring of regional soil salinization.

关键词： spectral reflectance soil salt content salinization multiple linear regression Minqin Oasis

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Synergistic combination of arbuscular mycorrhizal fungi and plant growth-promoting rhizobacteria modulates morpho-physiological characteristics and soil structure in Nitraria tangutorum *** saline soil conditions

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Research in Cold and Arid Regions 2022年第6期14卷 393-402页

作者： Jing Pan cuihua huang Fei Peng Tao Wang Jie Liao ShaoXiu Ma QuanGang You Xian Xue Drylands Salinization Research Station/Key Laboratory of Desert and Desertification Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China

Nitraria tangutorum Bobr.,a typical xero-halophyte,can be used for vegetation restoration and reconstruction in arid and semiarid regions affected by ***,global climate change and unreasonable human activity have exacerbated salinization in arid and semi-arid regions,which in turn has led to the growth inhibition of halophytes,including *** mycorrhizal fungi(AMF)and plant growth-promoting rhizobacteria(PGPR)have the potential to improve the salt tolerance of plants and their adaptation to saline soil *** this study,the effects of single and combined inoculations of AMF(Glomus mosseae)and PGPR(Bacillus amyloliquefaciens FZB42)on *** were evaluated in severe saline soil *** results indicate that AMF and PGPR alone may not adapt well to the real soil environment,and cannot ensure the effect of either growth promotion or salt-tolerance induction on *** ***,the combination of AMF and PGPR significantly promoted mycorrhizal colonization,increased biomass accumulation,improved morphological development,enhanced photosynthetic performance,stomatal adjustment ability,and the exchange of water and ***-inoculation also significantly counteracted the adverse effect of salinity on the soil structure of *** *** is concluded that the effectiveness of microbial inoculation on the salt tolerance of *** seedlings depends on the functional compatibility between plants and microorganisms as well as the specific combinations of AMF and PGPR.

关键词： Nitraria tangutorum Bobr. Arbuscular mycorrhizal fungi Plant growth-promoting rhizobacteria Morphological development Photosynthesis physiology Soil structure

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Increase in medium-size rainfall events will enhance the C-sequestration capacity of biological soil crusts

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Research in Cold and Arid Regions 2019年第1期11卷 81-92页

作者： cuihua huang Fei Peng Itaru Shibata Jun Luo Xian Xue Kinya Akashi Atsushi Tsunekawa Tao Wang Minqin Salinization Research Station Key Laboratory of Desert and Desertification Northwest Institute of Eco-Environment and Resources Chinese Academy of Science International Platform for Dryland Research and Education Tottori University Arid Land Research Center Tottori University

Biological soil crusts(BSCs) play important roles in the carbon(C) balance in arid regions. Net C balance of BSCs is strongly dependent on rainfall and consequent activation of microbes in the BSCs. The compensation-rainfall size for BSCs(the minimum rainfall amount for a positive net C balance) is assumed to be different with BSCs of different developmental stages. A field experiment with simulated rainfall amount(SRA) of 0, 1, 5, 10, 20, and 40 mm was conducted to examine the C fluxes and compensation-rainfall size of BSCs in different parts of fixed dunes in the ecotone between the Badain Jaran Desert and the Minqin Oasis. We found algae-lichen crust on the interdunes and crest, algae crust on the leeward side, and lichen-moss crust on the windward. Even a small rainfall(1 mm) can activate both photosynthesis and respiration of all types of BSCs. The gross ecosystem production, ecosystem respiration, and net ecosystem exchange were significantly affected by SRA, hours after the simulated rainfall, position on a dune, and their interactions. The rapid activation of photosynthesis provides a C source and therefore could be responsible for the increase of C efflux after each rewetting. C-uptake and-emission capacity of all the BSCs positively correlated with rainfall size, with the lowest C fluxes on the leeward side. The compensation rainfall for a net C uptake was 3.80, 15.54, 8.62, and 1.88 mm for BSCs on the interdunes, the leeward side, the crest, and the windward side, respectively. The whole dune started to show a net C uptake with an SRA of 5 mm and maximized with an SRA of about 30 mm. The compensation-rainfall size is negatively correlated with chlorophyll content. Our results suggest that BSCs will be favored in terms of C balance, and sand dune stabilization could be sustained with an increasing frequency of 5-10 mm rainfall events in the desert-oasis transitional zone.-

关键词： biological soil crust rainfall size desert-oasis ecotone C balance arid region

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Clinical Value of Hepatoma-Specific Alpha-Fetoprotein in the Diagnosis of Hepatocellular Carcinoma

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Chinese Journal of Clinical Oncology 2006年第3期3卷 153-157页

作者： Runzhou Ni Mingbing Xiao Fei Jin cuihua Lu Jiefei huang Xianyong Meng Department of Gastroenterology Affiliated Hospital of Nantong University Nantong 226001 Jiangsu Province China.

OBJECTIVE To study the clinical value of hepatoma-specific alpha-feto- protein (HS-AFP) in the diagnosis and differential diagnosis of hepato- cellular carcinoma (HCC). METHODS A method of vertical slab polyacrylamide gel electrophoresis with discontinuous buffer system was developed to separate AFP sub- types. After separation, the AFP subtypes were transferred to nitrocellu- lose and reacted first with rabbit anti-human AFP and then with goat an- ti-rabbit IgG -HRP. Finally, AFP subtypes were visualized by reacting with 3,3’-diaminobenzidine tetrahydrochloride. A HS-AFP band was de- termined in 82 cases with HCC and 95 cases with benign liver diseases. The correlations between the positive rates of HS-AFP and serum AFP concentration, tumor size as well as portal vein metastasis were analyzed. RESULTS Serum AFP in the cases with various liver diseases was sepa- rated into one to several bands. The fastest band on electrophoresis (F- AFP) was found in all patients, while the band at the cathodal site (HS- AFP) was detected predominantly in HCC but rarely in benign liver dis- eases. The positive rate of HS-AFP in HCC was 74.4%, which was sig- nificantly higher than that in benign liver diseases (9.1%, 7.3% and 10.0% in liver cirrhosis, chronic hepatitis and acute hepatitis respectively). HS- AFP was detected in 3 out of 9 HCC cases with AFP<50 μg/L , but in none of 22 cases of benign liver diseases with the same AFP concentra- tion. HS-AFP correlated with serum AFP concentration and tumor size to some extent, but not with portal vein metastasis. CONCLUSION HS-AFP increases the sensitivity of diagnosing HCC in patients with negative AFP, and is useful in distinguishing high AFP due to HCC from that caused by benign liver diseases.

关键词： hepatoma alpha-fetoprotein heterogeneity diagnosis.

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A BBS4 mutation causes autosomal dominant polycystic liver disease

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Genes & Diseases 2024年第1期11卷 72-75页

作者： Yalu Cui Wenping Xu Jinpei Liu Shuqing Liu Wei huang Yihai Shi Xin Zhang cuihua Lu Weifen Xie Department of Gastroenterology Changzheng HospitalNaval Medical UniversityShanghai 200003China Department of Gastroenterology Gongli Hospital of Shanghai Pudong New AreaShanghai 200135China Department of Gastroenterology Affiliated Hospital of Nantong UniversityNantong UniversityNantongJiangsu 226001China

Autosomal dominant polycystic liver disease(ADPLD)refers to a condition characterized by the presence of numerous cholangiocytes-lined and fluid-filled cysts in the liver and the absence of polycystic kidney disease.1 Although patients with ADPLD may be asymptomatic,some patients suffer from abdominal pain,gastroesophageal reflux,and nausea,because of hepatomegaly.

关键词： liver polycystic patients

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Factor analysis to detect the causes of land degradation in Maduo County,northeastern Qinghai-Tibet Plateau

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Research in Cold and Arid Regions 2010年第2期2卷 154-161页

作者： Fei Peng Xian Xue Tao Wang cuihua huang Fang Zhang Key Laboratory of Desert and Desertification Cold and Arid Regions Environment and Engineering Research InstituteChinese Academy of SciencesNo.320 West Donggang RoadLanzhouGansu 730000China

The area of desertified land has increased by 27.3% from 1987 to 2000 in Maduo County,northeastern Qinghai-Tibet *** forces of land degradation has been extensively studied in the *** Factor Analysis (FA),we evaluate contribution of human activity and natural environmental change to land *** common factors were extracted in this *** result shows that climate related other than human-related factors,are the major inducing factors of land degradation in Maduo *** change and consequent change of permafrost account for 70% to the land *** evaporation and declining precipitation in the beginning of the growing season hamper seedling *** frozen days and rising active layer lower bound make surface soil loose and less soil moisture available for plant.

关键词： land degradation factor analysis permafrost climate variations Maduo County Yellow River

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线粒体自噬在糖尿病心肌病中的研究进展

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中华内分泌代谢杂志 2023年第6期39卷 522-526页

作者：黄翠华林露黄丽珊刘礼斌福建医科大学附属协和医院内分泌科福州350000

糖尿病心肌病是与糖脂代谢紊乱相关的心肌并发症,增加了糖尿病患者死亡和心力衰竭的风险。线粒体功能障碍参与了糖尿病心肌病的发生发展。近期研究显示,通过线粒体自噬清除心肌细胞内受损线粒体,可恢复线粒体稳态、减轻氧化应激及改善... 详细信息

糖尿病心肌病是与糖脂代谢紊乱相关的心肌并发症,增加了糖尿病患者死亡和心力衰竭的风险。线粒体功能障碍参与了糖尿病心肌病的发生发展。近期研究显示,通过线粒体自噬清除心肌细胞内受损线粒体,可恢复线粒体稳态、减轻氧化应激及改善糖尿病心肌病。因此,本文就线粒体自噬在糖尿病心肌病中的调控机制、作用特点进行综述,以期为糖尿病心肌病防治提供新思路和理论依据。

关键词：糖尿病心肌病线粒体自噬线粒体功能障碍

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