高职教育实训基地建设的研究与实践

实训基地建设是实现高职教育培养目标的需要,是培养高职人才的必要场所.本文对高职教育实训基地建设的意义、原则和实现功能等方面进行了探讨,并结合专业建设进行了有益的尝试.     

Soil Acidity Parameters and Defoliation Degree in Six Norway Spruce Stands in Finland

Soil acidity parameters (pH, basesaturation, exchangeable Al) in the organic and mineralsoil layers and in soil water (pH, dissolved organiccarbon, total Al, Al³⁺ and molar Ca/Al ratios) insix Norway spruce stands in different parts of Finlandwere compared. An attempt was also made to relate thedegree of defoliation in the tree stand to N and Sdeposition and soil parameters. No relationship was foundbetween soil acidity parameters and defoliation in thesix stands. Defoliation was positively correlated withstand age and the C/N ratio of the organic layer, andnegatively with the cation exchange capacity. The plotlocated on a so-called sulphate soil on the west coast ofFinland had very low soil pH values, and extremely highAl and SO₄ ^2- concentrations and molar Ca/Alratios of well below 1.0 in soil water. Despite the highnatural acidity in the soil on this plot, defoliation inthe spruce stand was the lowest (mean 8.6%) of all sixplots. The results of this study indicate that soilacidity is not a major factor affecting stand conditionin these spruce stands, and that the variation in soilacidity parameters is closely related to climatic factorsand natural soil formation processes.     

地震专项保险与震情指数预报

本文论证了我国现行保险制度处理震灾保险上的弊端,建议设置震灾专项保险,为此拟定了特殊的承保—理赔准则;分析了地震预报难以发布的原因,从探究地震和保险内在的协同与制约关系中试图建立一种以动态保险费率作为各地震情指数的隐含预报模式。     

乌江流域资源开发与电力—冶金—化工基地建设

乌江流域是我国水能、煤炭、铝、磷资源富集区,具有储量大、质量好、分布相对集中、组合配置好等特点。目前该流域及其邻近省区电力紧缺,煤炭供应不足;铝、磷等更是我国经济发展中的短线产品。乌江流域经过多年建设,具备了综合开发、加工的基础。乌江流域具有建设电力—冶金—化工基地的优越条件,其开发在战略上应分两步走,前期重点加速水电梯级建设,扩大煤炭、磷矿、铝土矿等主要资源的开采规模,原煤、精选磷矿以外运为主;后期建设重点是在进一步开发水电梯级和扩大资源开发规模的同时,兴建火电厂,形成水火互济强大电力基地,发展氧化铝、电解铝、重钙、黄磷等铝、磷综合性加工工业,形成从矿山开采,到原矿初加工、深加工的冶金、化工基地。     

关于《生态保护》课程实践教学若干问题的探讨

《生态保护》在我院是一门重要的课程，也是一门实践性很强的学科，但是目前该课程的实践教学环节还相当薄弱。增建实习实践基地，选择合适的实习路线，拟建相关学科实验室等措施将为该课程的实践教学提供保障。     

深埋桩的质量检测

着重介绍深埋桩的预埋管超声波法和反射波法的质量检测方法原理效果，从江阴长江大桥桥桩的检测和验证结果分析，两种方法的检测效果显著，准确度高，是当前深埋桩质量检测中最切实可行的方法     

汾渭地震带地震发生的灰色灾变预测

本文应用灰色理论中的灾变预测方法,建立了汾渭地震带中强震发生时间的灰色预测模型。并对未来中强震的发震时间进行了预测。     

推进地震保险 增强震灾经济补偿能力

摘要地震是一种对人类生存威胁极大的自然灾害,长期以来人类一直在探寻抗御地震灾害的有效途径。无疑,对地震造成的损失予以及时、充分的经济补偿,不失为一项重要的对策,其中,推进地震保险,通过社会经济杠杆原理,可以实现这种经济补偿。本文就推进地震保险的必要性、可行性及其实施方法和步骤,论述了作者的认识。作者认为,推进并普及地震保险,是目前增强社会防震减灾和实现自救、互救能力的最有效方法。但实现地震保险,需要政府的支持、社会的广泛参与和地震部门的密切配合。     

A COMPUTERIZED DATA BASE FOR FLOOD PREDICTION MODELING1

ABSTRACT: A computerized geographic information system (GIS) was created in support of data requirements by a hydrologic model designed to predict the runoff hydrograph from ungaged basins. Some geomorphologic characteristics (i.e., channel lengths) were manually measured from topographic maps, while other parameters such as drainage area and number of channels of a specified order, land use, and soil type were digitized and manipulated through use of the GIS. The model required the generation of an integrated Soil Conservation Service (SCS) curve number for the entire basin. To this end, soil associations and land use (generated from analysis of Landsat satellite data) were merged in the GIS to acquire a map representing SCS runoff curve numbers. The volume of runoff obtained from the Watershed Hydrology Simulation (WAHS) Model using this map was compared to the volume computed by hydrograph separation and found to be accurate within 19 percent error. To quantify the effect of changing land use on basin hydrology, the GIS was used to vary percentages from the drainage area from forest to bare soil. By changing the basin runoff curve numbers, significant changes in peak discharge were noted; however, the time to peak discharge remained essentially independent of change in area of land use. The GIS capability eliminated many of the more traditional manual phases of data input arid manipulation, thereby allowing researchers to concentrate on the development and calibration of the model and the interpretation of presumably more accurate results.     

异养硝化细菌的分离及其硝化特性实验研究

采用将传统微生物学方法与现代分子生物学手段相结合的新型异养硝化细菌的分离筛选方法,从具有80.1%的SND效果的MBR系统中分离筛选出2株异养硝化细菌,通过生理生化实验、16S rDNA的序列分析,认定为属新报道的异养型硝化细菌.通过批式试验考察了分离纯化得到的异养硝化细菌的硝化性能.结果表明,Bacillussp.LY及Brevibacillussp.LY具有异养微生物的性质,在充分利用有机碳进行有氧呼吸的同时还具有较强的硝化及脱氮能力:24d好氧培养后,COD的去除率分别为71.7%及52.6%;氨氮的转化率分别为78.2%及51.2%;总氮的转化率分别为69.2%及35.6%.