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太阳能学报 2010年第2期31卷 257-262页

作者：耿欣李天成李十中王二强中国农业大学资源与环境学院北京100193 清华大学核能与新能源研究院北京100084

研究了甜高粱秆固态发酵生产燃料乙醇过程工艺参数的变化规律及相关性,并以此为基础进行了5m^3转鼓式固态发酵反应器中试试验。结果表明:糖份的快速消耗伴随着乙醇的大量产生,酵母分泌相关酶类使非还原糖向还原糖转化;发酵过程pH下降,... 详细信息

研究了甜高粱秆固态发酵生产燃料乙醇过程工艺参数的变化规律及相关性,并以此为基础进行了5m^3转鼓式固态发酵反应器中试试验。结果表明:糖份的快速消耗伴随着乙醇的大量产生,酵母分泌相关酶类使非还原糖向还原糖转化;发酵过程pH下降,对乙醇产生无明显抑制;搅拌可以改善传质、传热,有利于菌体的生长和发酵的进行。中试结果表明40～44h内可完成发酵。直接固态发酵与蒸馏后获得30%～40%的粗醇溶液,平均13.5～15.5kg甜高粱秆产1kg(99.5%)无水乙醇,糟渣粗蛋白含量6.94%(干基),可替代"黄储"饲料。糖利用率最高97.50%,乙醇实际收率最高94.48%。

关键词：乙醇甜高粱秆固态发酵过程参数中试试验

Integrated erosion control measures and environmental effects in rocky mountainous areas in northern china

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International Journal of Sediment Research 2010年第3期25卷 294-303页

作者： HE Jijun1, CAI Qiangguo2, LI Guoqiang3, and wang Zhongke41 Ph. D, Lecturer, Capital Normal university, Elementary Educational college, beijing 100048, china State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Water and Soil Conservation, Chinese Academy of sciences and Ministry of Water Resources, yangling 712100 Shanxi, china. 2 Prof., Institute of Geographical sciences and Natural Resources Research, Key Laboratory of Water Cycle and Related Land Surface Processes, CAS, beijing 100101, china, 3 Graduate student, Huazhong agricultural university, college of Resources and Environment, wuhan 430070, china 4 Prof., Zhangjiakou Supervision Station of Water Conservancy Project, Zhangjiakou Supervision Sub-station of Soil and Water Conservation and environment, Zhangjiakou 075000, china Ph. D Lecturer Capital Normal University Elementary Educational College Beijing 100048 China State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau Institute of Water and Soil Conservation Chinese Academy of Sciences and Ministry of Water Resources Yangling 712100 Shanxi China Prof. Institute of Geographical Sciences and Natural Resources Research Key Laboratory of Water Cycle and Related Land Surface Processes CAS Beijing 100101 China Graduate student Huazhong Agricultural University College of Resources and Environment wuhan 430070 China Prof. Zhangjiakou Supervision Station of Water Conservancy Project Zhangjiakou Supervision Sub-station of Soil and Water Conservation and environment Zhangjiakou 075000 China

Based on observations of runoff plots and field investigations of gully cross-sections, impacts of various soil and water conservation measures on runoff and sediment yield are analyzed for different rainfall conditions. The results show that antecedent rainfall and rainfall intensity are the main factors affecting the runoff and soil erosion processes. Rainfall events with antecedent rainfall can produce high runoff and sediment yield. Large differences in the characteristics of two rainfall events will result in greater variations of total runoff and sediment yield from the same runoff plot. Under the same soil control measure and rainfall condition, soil and water conservation measures can reduce the impacts of antecedent rainfall and rainfall intensity on runoff and soil erosion. Among various measures, level terrace seems to be the greatest for soil conservation purposes. Combining with engineering measures,Vegetation measures is also effective in controlling runoff and soil erosion. In the initial stage of vegetation enclosure measures, engineering measure is necessary to improve the environment for ecological recovery. Gully head protection can control gully erosion effectively, but the effectiveness of gully head protection would be reduced when rainfall intensity increases. Therefore, the design of a gully head protection structure must be based on local hydrological conditions.

关键词： Rainfall character Antecedent rainfall Gully head protection Cumulated erosion amount

烟气脱硫副产物改良碱性土壤过程中化学指标变化规律的研究

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土壤学报 2005年第1期42卷 98-105页

作者：王金满杨培岭任树梅项光明中国农业大学水利与土木工程学院北京100083 清华大学热能工程系北京100084

通过土柱淋洗试验的方法,研究了脱硫副产物在改良碱性土壤过程中对碱性土壤化学指标(代换性钠、ESP、SAR、pH值)的影响。本研究采用两种碱性土壤(强度碱化土和碱土),两种土壤各分两个脱硫副产物施用水平(强度碱化土为3 g kg-1和3 6 g kg... 详细信息

通过土柱淋洗试验的方法,研究了脱硫副产物在改良碱性土壤过程中对碱性土壤化学指标(代换性钠、ESP、SAR、pH值)的影响。本研究采用两种碱性土壤(强度碱化土和碱土),两种土壤各分两个脱硫副产物施用水平(强度碱化土为3 g kg-1和3 6 g kg-1;碱土为7 g kg-1和8 4 g kg-1)。结果表明,经过施加烟气脱硫副产物和淋洗各种试验处理的代换性钠、ESP、SAR和pH值都有了明显的降低,碱性土壤得到了改良;同时,高烟气脱硫副产物施加水平的碱性土壤改良效果要优于低施加水平的碱性土壤;强度碱化土和碱土分别施加3 6 g kg-1、8 4 g kg-1烟气脱硫副产物后,在强度碱化土表层(0~40 cm)和碱土表层(0~20 cm)ESP15、SAR13和pH<8 5,已经降至中度碱化土水平,改良效果显著。

关键词：碱化改良效果淋洗施用变化规律土壤试验烟气脱硫副产物土柱

Lateral root elongation in maize is related to auxin synthesis and transportation mediated by N metabolism under a mixed NO_(3)^(–) and NH_(4)^(+) supply

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Journal of Integrative Agriculture 2024年第3期23卷 1048-1060页

作者： Peng wang Lan yang Xichao Sun Wenjun Shi Rui Dong Yuanhua Wu Guohua Mi Key Laboratory of Tobacco Biology and Processing of Ministry of Agriculture and Rural Affairs Tobacco Research InstituteChineseAcademy of Agricultural SciencesQingdao 266101China Department of Plant Nutrition College of Resources and Environmental SciencesChina Agricultural UniversityBeijing 100193China college of Resources Hunan Agricultural UniversityChangsha 410128China Agro-Environmental Protection Institute Ministry of Agriculture and Rural AffairsTianjin 300191China

A mixed nitrate (NO_(3)^(–)) and ammonium (NH_(4)^(+)) supply can promote root growth in maize (Zea mays),however,the changes in root morphology and the related physiological mechanism under different N forms are still ***,maize seedlings were grown hydroponically with three N supplied in three different forms (NO_(3)^(–)only,75/25 NO_(3)^(–)/NH_(4)^(+)and NH_(4)^(+)only).Compared with sole NO_(3)^(–)or NH_(4)^(+),the mixed N supply increased the total root length of maize but did not affect the number of axial *** main reason was the increased total lateral root length,while the average lateral root (LR) length in each axle was only slightly *** addition,the average LR density of 2nd whorl crown root under mixed N was also *** with sole nitrate,mixed N could improve the N metabolism of roots (such as the N influx rate,nitrate reductase (NR) and glutamine synthase (GS)enzyme activities and total amino content of the roots).Experiments with exogenously added NR and GS inhibitors suggested that the increase in the average LR length under mixed N was related to the process of N assimilation,and whether the NR mediated NO synthesis participates in this process needs further ***,an investigation of the changes in root-shoot ratio and carbon (C) concentration showed that C transportation from shoots to roots may not be the key factor in mediating lateral root elongation,and the changes in the sugar concentration in roots further proved this ***,the synthesis and transportation of auxin in axial roots may play a key role in lateral root elongation,in which the expression of ZmPIN1B and ZmPIN9 may be involved in this *** study preliminarily clarified the changes in root morphology and explored the possible physiological mechanism under a mixed N supply in maize,which may provide some theoretical basis for the cultivation of crop varieties with high N efficiency.

关键词： maize NO_(3)^(–)/NH_(4)^(+)ratio lateral root elongation N assimilation indole-3-acetic acid

Plant DNA barcoding in china

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Journal of Systematics and Evolution 2011年第3期49卷 165-168页

作者： 1De-Zhu LI 2Jian-Quan LIU 3Zhi-Duan CHEN 1Hong wang 4Xue-Jun GE 3Shi-Liang ZHOU 1Lian-Ming gao 5Cheng-Xin FU 6Shi-Lin CHEN 1(Plant Germplasm and Genomics Centre,Germplasm Bank of Wild Species in Southwest china Key Laboratory of Biodiversity and Biogeography,Kunming Institute of Botany,Chinese Academy of sciences,Kunming 650204,china) 2(Key Laboratory of Arid and Grassland Ecology,college of Life sciences,Lanzhou university,Lanzhou 730000,china) 3(State Key Laboratory of Systematic and Evolutionary Botany,Institute of Botany,Chinese Academy of sciences,beijing 100093,china) 4(Key Laboratory of Plant Resources Conservation and Sustainable Utilization,South china Botanical Garden,Chinese Academy of sciences,Guangzhou 510650,china) 5(Key Laboratory of Conservation Biology for Endangered Wildlife of the Ministry of Education,college of Life sciences,Zhejiang university,Hangzhou 310058,china) 6(Institute of Medicinal Plant Development,Chinese Academy of Medical sciences,Peking Union Medical college,beijing 100193,china) (Plant Germplasm and Genomics Centre Germplasm Bank of Wild Species in Southwest China Key Laboratory of Biodiversity and Biogeography Kunming Institute of Botany Chinese Academy of Sciences Kunming 650204 China) (Key Laboratory of Arid and Grassland Ecology College of Life Sciences Lanzhou University Lanzhou 730000 China) (State Key Laboratory of Systematic and Evolutionary Botany Institute of Botany Chinese Academy of Sciences Beijing 100093 China) (Key Laboratory of Plant Resources Conservation and Sustainable Utilization South China Botanical Garden Chinese Academy of Sciences Guangzhou 510650 China) (Key Laboratory of Conservation Biology for Endangered Wildlife of the Ministry of Education College of Life Sciences Zhejiang University Hangzhou 310058 China) (Institute of Medicinal Plant Development Chinese Academy of Medical Sciences Peking Union Medical College Beijing 100193 China)

Identification is the keystone of biology(Bell, 1986).However,to biologists and students of biology, the total numbers of species that must be identified far outnumber the names commonly used in English,Chinese,or oth... 详细信息

关键词： DNA Plant DNA barcoding in china matK

HiFAST:An HIdata calibration and imaging pipeline for FAST

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science china(Physics,Mechanics & Astronomy) 2024年第5期67卷 182-199页

作者： Yingjie Jing Jie wang Chen Xu Ziming Liu Qingze Chen Tiantian Liang Jinlong Xu Yixian Cao Jing wang Huijie Hu Chuan-Peng Zhang Qi Guo Liang gao Mei Ai Hengqian Gan Xuyang gao Jinlin Han Ligang Hou Zhipeng Hou Peng Jiang Xu Kong Fujia Li Zerui Liu Li Shao Hengxing Pan Jun Pan Lei Qian Jinghai Sun Ningyu Tang Qingliang yang Bo Zhang Zhiyu Zhang Ming Zhu National Astronomical Observatories Chinese Academy of SciencesBeijing 100012China Institute for Frontiers in Astronomy and Astrophysics Beijing Normal UniversityBeijing 02206China School of Astronomy and Space science University of Chinese Academy of SciencesBeijing 100049China Guizhou Radio Astronomical Observatory Guizhou UniversityGuiyang 55000China Max Planck Institute for Extraterrestrial Physics Garching 85748Germany Kavli Institute for Astronomy and Astrophysics Peking UniversityBeijing 100871China Institute of Computational Cosmology Department of PhysicsUniversity of DurhamDurham DHI 3LEUK CAS Key Laboratory of FAST National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China Deep Space Exploration Laboratory/Department of Astronomy University of Science and Technology of ChinaHefei 230026China School of Astronomy and Space science University of Science and Technology of ChinaHefei 230026China Astrophysics Department of PhysicsUniversity of OxfordOxford OX/3RHUK college of Earth sciences Guilin University of TechnologyGuilin 541004China Department of Physics Anhui Normal UniversityWuhu 241002China School of Astronomy and Space science Nanjing UniversityNanjing 210023China Key Laboratory of Modern Astronomy and Astrophysics Nanjing UniversityNanjing 20023China

The Five-hundred-meter Aperture Spherical radio Telescope(FAST)has the largest aperture and a 19-beam L-band receiver,making it powerful for investigating the neutral hydrogen atomic gas(HI)in the *** present HiFAST(https://***),a dedicated,modular,and self-contained calibration and imaging pipeline for processing the H?data of *** pipeline consists of frequency-dependent noise diode calibration,baseline fitting,standing wave removal using an FFT-based method,flux density calibration,stray radiation correction,and gridding to produce data *** modules can be combined as needed to process the data from most FAST observation modes:tracking,drift scanning,On-The-Fly mapping,and most of their *** HiFAST,the root-mean-square(RMS)noises of the calibrated spectra from all 19 beams were only slightly(~5%)higher than the theoretical *** results for the extended source M33 and the point sources are consistent with the results from *** moment maps(0,1 and 2)of M33 agree well with the results from the Arecibo Galaxy Environment Survey(AGES)with a fractional difference of less than 10%.For a common sample of 221 sources with signal-to-noise ratio S/N>10 from the Arecibo Legacy Fast ALFA(ALFALFA)survey,the mean value of fractional difference in the integrated flux density,Sint,between the two datasets is approximately 0.005%,with a dispersion of 15.4%.Further checks on the integrated flux density of 23 sources with seven observations indicate that the variance in the flux density of the source with luminous objects(Sint>2.5 Jy km s-1)is less than 5%.Our tests suggest that the FAST telescope,with the efficient,precise,and user-friendly pipeline HiFAST,will yield numerous significant scientific findings in the investigation of the H?in the universe.

关键词： fractional luminous correction

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土壤微生物多样性及其环境影响因子研究进展

生态学杂志 2005年第1期24卷 48-52页

作者：张薇魏海雷高洪文胡跃高中国农业科学院畜牧研究所中国农业大学农学与生物技术学院北京100094 中国科学院微生物研究所中国农业大学农学与生物技术学院

土壤中存在丰富的微生物资源 ,不同土壤系统具有不同的微生物群落 ,微生物多样性既依赖于生态系统又服务于生态系统。本文从物种多样性、遗传多样性、生态类型多样性、功能多样性四个方面对土壤微生物多样性进行了新的诠释 ,总结论述了... 详细信息

土壤中存在丰富的微生物资源 ,不同土壤系统具有不同的微生物群落 ,微生物多样性既依赖于生态系统又服务于生态系统。本文从物种多样性、遗传多样性、生态类型多样性、功能多样性四个方面对土壤微生物多样性进行了新的诠释 ,总结论述了土壤微生物多样性与环境因子如土壤、植物群落和气候条件之间的关系 ,并对目前存在的问题和今后面临的挑战提出几点看法。

关键词：土壤微生物多样性环境因子

Optimization of a Liquid Growth Medium for Coprinus comatus

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食用菌学报 2006年第3期 29-31页

作者： DONG Yong-hang~ 1* , wang Hai-sheng~ 1,2 , QIU Li-you~ 1 , wang Lian-qun~ 3 , JIA Xin-cheng~ 1* ~ 1 college of Life science, Henan agricultural university, Zhengzhou 450002, china ~ 2 Institute of agricultural Resources and Regional Planning, Chinese Academy of agricultural sciences, beijing 100081, china ~ 3 Zhongtai Pharmaceutical Co., Ltd, Zhumadian, Henan 463000, china

Four different media for growing Coprinus comatus strain CC16-8 in submerged culture were screened and subjected to orthogonal testing according to L_ 9 （3~ 4 ）. Data revealed the optimum medium composition （adjusted to pH 8.0） to be: sucrose 3%, corn powder 2%, wheat bran 4%, KH_ 2 PO_ 4 0.1% and MgSO_ 4 ·7H_ 2 O 0.05%. Mycelium dry weights using this medium reached 8.63 g/L after submerged culture for 7.5 d.

关键词： Coprinus comatus Medium optimization Orthogonal test Submerged culture

ANALYSIS AND MONITORING FOR EPIDEMIC SYSTEM AS A BASIS FOR CUCUMBER DOWNY MILDEW WARNING IN GREENHOUSE

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ANALYSIS AND MONITORING FOR EPIDEMIC SYSTEM AS A BASIS FOR C...