基于DEM生成小比例尺分省彩色晕渲图

分析了基于DEM数据的自动晕渲生成的意义 ,介绍了我国 1∶2 5万DEM数据库的结构 ,同时在对 1∶2 5万DEM重采样生成多尺度空间数据的基础上生成晕渲图片 ,比较、分析并提出了相关的参考建议     

1984年南海夏季风经向环流强迫因子的诊断分析

1985年5月广东省的中、南部和西南部出现较为严重的暴雨洪涝灾害。利用美国国家大气研究中心和宾西法尼亚州大学联合研制的中尺度模式(MM5)成功地模拟了该月的华南气候，并通过敏感性试验研究了南海海温异常增暖对华南天气气候的影响。结果表明，海面温度的异常增暖改变了海面与行星边界层大气之间的能量交换过程，即增加了由海面向上输送的潜热通量和感热通量，从而引起南海及其附近地区对流层下部的月平均气温升高，气柱不稳定度增大；并在对流层下(上)部产生一个附加的差值气旋(反气旋)性环流。大气环流结构的这些改变对1998年5月广东中南部和西南部的洪涝有重要的影响。     

喷锚支护在石家庄市新世隆广场基坑护坡中的应用

喷锚支护是当今在基坑支护中实行的新工艺，其施工工艺简单、造价经济。     

Cold event at 5 500 a BP recorded in mud sediments on the inner shelf of the East China Sea

A 700-year record (1.0–1.5 a resolution) of the East Asian winter monsoon (EAWM), based on grain-size analysis and AMS¹⁴C dating of Core EC2005 from the inner-shelf mud wedge of the East China Sea (ECS), was compared with the Dongge stalagmite δ¹⁸O record during the mid-Holocene. The upper muddy section of Core EC2005 has been formed mainly by suspended sediments derived from the Changjiang (Yangtze) River mouth since 7.3 ka BP. High precipitation and a strengthened EAWM might have played key roles in the high sedimentation rate (1 324–1 986 cm/ka) between 5.9–5.2 ka BP. The EAWM strengthened when the Asian summer monsoon weakened, especially around 5 500 a BP, which corresponded to a worldwide cold event. The EAWM during the mid-Holocene shows statistically significant solar periodicities at 62 and 11 a. The 5 500 a BP cold event might be resulted from orbital forcing and changes in solar activity.     

根据数字化巡天光盘测定天体E或V星等

用目视和底片密度扫描的办法从帕洛玛巡天底片得到天体星等资料已有许多作讨论过，其结果得到广泛的应用，考虑到帕洛至于底片已经数字化并做出了数字化巡天光盘（ＤＳＳ），若从它直接得到测光资料将更为方便，为此，我们发展了直接从ＤＳＳ中得到天区天体Ｅ或Ｖ星等的软件，其测量Ｅ星等的精度为０．３７＾ｍ，Ｖ星等的精度为０．４２＾ｍ。     

安排科学组织精心积极抓好乡村干部国土资源法律知识培训

淳安县有425个行政村,村委书记和村主任共850名。为进一步增强全县乡村两级干部保护国土资源的意识,我县还把国土资源协管员、地质灾害监测员和乡镇分管领导纳入了培训对象。据统计,全县应参加培训的村两委干部和村国土协管员为1004人,除18人因病因事请假外,共有986名村党支部书记、村委主任、     

广西土地开发整理与新农利建设两者关系之我见

从1999年广西开展土地整理工作近10年来,共投入土地整理复垦开发建设的有偿使用费约18亿元（其中国家投入资金8．54亿元）,整理复垦开发土地总面积132．22万亩,连续9年实现了耕地总量动态和耕地占补双平衡,为全区经济社会发展做出了重大贡献。     

CYTOLOGICAL COMPARISON OF GAMETOGENESIS OF SCALLOPS, ARGOPECTEN IRRADIANS AND CHLAMYS FARRERI

Histological characteristics of gametogenesis of two kinds of scallops, gonochoric Chinese scallop, Chlamys farreri and hermaphroditic bay scallop, Argopecten irradians were investigated in this study. Spermatogenesis in C. farreri has different developmental stages: spermatogonia, primary spermatocyte, second spermatocyte, spermatid and spermatozoon. A large number of same developmental stage spermatic cells converge at a definite area of the testis. Premeiotic, previtellogenic and vitellogenic oocytes can be found during oogenesis in C. farreri, where oocyte distribution is obviously irregular. The A. irradians gonad consists of two different parts in one individual: one part functions as testis, the other as ovary. Between these two parts is a special appearance area, where a large number of spermatic cells are bound with two layers of acellular substance with many oocytes in it.     

如何开展项目招投标工作并确定施工单位

根据原国家计委30号令<工程建设项目施工招标投标试行办法>、<中华人民共和国招投标法>等有关政策法规的规定和国土资源部有关项目实施管理的文件要求,土地开发整理项目实施的施工单位要依法通过招投标来确定.通过招投标确定监理和施工单位有利于选择具备资质、资金和技术力量雄厚、信誉好的单位参与土地整理项目实施,可以有效避免在选择施工单位过程中发生暗箱操作和腐败行为.     

白云鄂博矿床石墨的发现及其地质意义

白云鄂博超大型Fe-Nb-REE矿床是世界最大的稀土矿床,储量约占世界已探明储量的60%.稀土主要赋存在南北宽约2 km,东西长约18 km的白云岩中.矿区发育大面积的海西期花岗岩和一些基性岩体/脉和碳酸岩脉.