土壤微生物

So studying the processes and mechanisms of soil hydrology of microbiotic crusts as well as analyzing its influence on soil water conditions in fixed dunes will play an important role theoretically and practically in understanding the evolution of artificial vegetation community in fixed dunes and the security of artificial sand-fixing vegetation system.

因此，通过野外试验揭示微生物结皮对土壤水文过程的影响和机理，评估其对雨养植被固沙区土壤水环境的影响，对于认识固沙区人工植被群落的演替和人工植被固沙体系的安全性都有着重要的理论意义和实践意义。

Shapotou; Artificial vegetation-fixed sand dune; Microbiotic crust; Soil hydrological process; Soil water environment

沙坡头；人工植被固沙区；微生物结皮；土壤水文过程；土壤水环境

Based on detecting the datum of microorganism in the soil,the study discovered that the beneficial microorganisms in the test soil were nitrobacteriaceae,nitrosomonads,cellulomoxnas,lactobacillus,actinomycetes and yeasts grow rapidly.

肥料中的微生物的代谢过程或代谢产物可以增加土壤中的氮和某些植物生长素抗生素的含量，或促进土壤中一些有效性低的营养物质的转化，或者兼有

Results indicate that the number of bacteria grown in media LB, CSEA and WSA was 14.84×10^7, 10.27×10^7 and 6.91×10^7 CFU per gram dry soil, respectively, after 192 h of incubation. The diversity index of soil bacteria was the highest in WSA, while the lowest in LB. Certain similarity was discovered in bacteria community between the three media, i. e. the Jaccard index was 57.69% between LB and CSEA, 53.13% between LB and WSA and 66.67% between CSEA and WSA. Phylogenetic analysis suggests that the dominant bacterial groups in the soil belong to β-Proteobacteria,γ-Proteobacteria and Actinobacteria. The sequence of 16S rDNA of some OTUs was found to have high homology with Burkholderiaceae bacterium, Rhodococcus and Mycobacterium, so it is presumed that the cells of these bacteria can secrete Resuscitation-Promoting Factors, which may effectively improve culturability of soil microorganisms.

结果表明，LB、CSEA、WSA培养基192h后每g干土获得的细菌数量分别为14.84×10^7、10.27×10^7和6.91×10^7CFU，但微生物多样性指数以WSA为最高，LB多样性指数最低；三种培养基培养的细菌菌群有一定的相似性，LB和CSEA培养基间的Jaccard指数为57.69%，LB和WSA培养基之间为53.13%，而CSEA和WSA培养基的相似性指数达66.67%；16SrDNA测序结果表明，所获得的土壤细菌优势种群在分类方面主要属于γ-和β-变形杆菌以及放线菌亚门，其中某些OTUs中的16SrDNA序列与Burkholderiaceae bacterium、Rhodococcus和Mycobacterium属具有较高的同源性，推测其细胞能够分泌复苏促进因子，有效地提高土壤细菌的可培养性。

Soil enzyme and microbe play key roles in the cycle of mass and energy fluxes of soil ecosystem.

土壤酶和微生物在土壤生态系统的物质循环和能量流动方面都扮演着十分重要的角色。

A polypeptide antibiotic, produced by the soil microorganism Bacillus brevis, that is a major constituent of tyrothricin.

短杆菌酪素一种多肽抗生素，由土壤中的微生物土壤杆菌产生，是混合短杆肽菌的重要组成部分

A polypeptide antibiotic,produced by the soil microorganism Bacillus brevis,that is a major constituent of tyrothricin.

短杆菌酪素一种多肽抗生素，由土壤中的微生物土壤杆菌产生，是混合短杆肽菌的重要组成部分收藏反馈

Effect of density and species richness of soil mesofauna on nutrient mineralisation and plant growth.

而土壤动物和微生物的季节动态与土壤生物化学特征之间也具有明显的相关性。

Effect of density and species richness of soil mesofauna on nutrient mineralisation and plant growth.

而土壤动物和微生物的季节动态与土壤生物化学特徵之间也具有明显的相关性。

In the past, researches focused only on sole function of bacteria such as tricalcium phosphate or ferric phosphate solubilization. In order to efficiently develop superior phosphate solubilizing microorganisms which are useful on various crops, a team includes Professors C.C. Young, C.C. Tang, S.H. Su, H.J. Chen and C.T. Lo in National Chung Hsing University and National Formosa University was established. Microbial consortiums include phosphate solubilizing bacteria, phosphate solubilizing actinomycetes, phosphate solubilizing yeast, and phosphate solubilizing fungi will be designed in the present study and their capabilities to promote crop growth will be demonstrated. The suitable phosphate solubilizing bacterial formula will also be designed. Consideration for the specificity and adaptation of phosphate solubilizing microorganisms to their host crops, the designed biofertilizers will be used as inoculants to increase the yields of various crops meanwhile reduce the overdose usage of chemical fertilizers.

过去研究溶磷菌主要是在各别溶磷之功能上之研发，如溶磷酸钙及溶磷铁，本计画为缩短不同菌种筛选在不同作物之效应评估工作，以组成一研究团队进行不同类型菌种之应用评估，成员涵盖二个大学的研究团队，包括杨秋忠、谭镇中、苏孝华及罗朝村等教授，分别研究细菌、放线菌、酵母菌及木霉真菌，另在菌剂生产配方由陈鸿基教授研究，以提高多元化应用土壤磷素之有效利用，并达到不同作物之应用效应评估，期以探讨开发不同作物专用之微生物肥料之可行性及问题，以减少化学磷肥之施用，降低土壤劣化提高农民所得之目的。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐