白令海峡区域太平洋入流水主要特征及其影响因素研究进展

作为北极海洋要素的重要来源之一,白令海峡区域的太平洋入流水在北冰洋表层海洋环流和物质能量输运过程中发挥着重要作用,对区域乃至全球气候和生态系统产生深远影响,然而现今的研究对太平洋入流水出现的新变化以及其如何参与北冰洋的海洋–大气过程了解得还不够深入。本文梳理了目前国内外有关太平洋入流水流量、环流与水团等主要特征的相关研究进展,总结了太平洋入流水的流量变化和驱动机制、环流路径和影响因素,以及与太平洋水有关的水团特征,并在前人研究的基础上对未来的研究方向予以展望。     

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扬子地块西北缘震旦系灯影组铅锌矿的成矿地质背景

按照“构造控盆、盆控相、相控矿”的思路,对铅锌矿形成的沉积盆地、含矿建造、控矿构造、岩相古地理等成矿条件进行研究,分析成矿特点,总结成矿规律。灯影期在扬子西北缘川西式基底上发育北东向、北北东向同生断裂,形成近北东向次级盆地和台地,构成台-盆相间的构造格局,次级盆地为局限盆地潮下相带沉积,台地边缘斜坡出现滑塌砾屑白云岩,沿同生断裂运移的含矿热液流体在角砾状白云岩中聚集成矿。研究结果表明,灯影组铅锌矿成矿明显受盆地半活动类型基底、镁质碳酸盐岩台地中次级盆地、控制次级盆地的同生断裂等因素的控制。     

江西锦江流域岩溶发育特征

本文把完整流域内各地层时代可溶岩作为整体研究对象,除对喀斯特发育地层、岩性、群体景观、个体形态作简要介绍外,重点对岩溶类型、分区及各区各种特征值进行统计分析,并用(定量)数据表征流域整体及纵向、横向、垂向(三度空间)喀斯特发育特征。     

土地登记委托代理申请如何办理——解读《土地登记办法》中的代理

申请人在申请土地登记时,时常会委托他人代理。为解决委托代理的真实性问题,不少地方的土地登记办理人员要求申请人当场写授权委托书,这样的做法是否可行?     

Molecular detection of microbial communities associated with Microcystis vs Synechococcus dominated waters in Tianjin,China

Harmful cyanobacterial blooms cause many ecological disasters worldwide. During the development of cyanobacterial blooms, the diversity and domination of cyanobacterial taxa are of a particular concern. In this study, the microbial community structure within a water system, such as in Yuqiao Reservoir and Haihe River in Tianjin City, China, was compared by using next-generation sequencing. A total of 5 001 operational taxonomic units were obtained and clustered from filtered 16 S rDNA V3–V4 region sequences. The cyanobacterial and microbial structures greatly differed in these two water areas. Microcystis was dominant in Yuqiao, whereas Synechococcus was dominant in Haihe. Proteobacteria species were dominant among all detected samples. The relative abundances of Bacteroidetes and Planctomycetes were higher in Yuqiao Reservoir than in Haihe River, whereas Firmicutes and Verrucomicrobia were relatively abundant in Haihe River. Further analyses indicated that the domination of both cyanobacteria was strongly related to several environmental factors, such as total nitrogen, total phosphorus, and dissolved oxygen, reflecting the role of trophic states in shaping the dominance of cyanobacterial taxa. The present study provided the example for Microcystis and Synechococcus dominance along a cyanobacterial bloom in north China. Applying highthroughput sequencing could offer a wide field of vision in analyzing microbial community structures.     

青田县组织观看警示片《法盲村长挪用公款再敲警钟》

2月25日晚,青田县国土资源局组织在职干部职工集中观看警示教育片《法盲村长挪用公款再敲警钟》,并展开了热烈的讨论。该片以青田县祯埠乡锦水村村民主任朱玉林挪用部分基础设施建设专项资金用于个人支付银行贷款、购买铝合金材料的犯罪事实为题材,警示大家廉洁自律,遵纪守法,提醒人们以朱玉林为戒,警钟长呜,遵纪守法,使大家受到了一次生动而深刻的世界观、人生观、价值观教育。大家一致认为：朱玉林走上犯罪道路的原因是多方面的,有贪婪、腐败的主观原因,也有法制意识薄弱的客观原因。他的犯罪事实使我们看到了一块警示牌。大家应当从自己做起,从现在做起,在思想上、工作上、作风上努力实践党的要求。一是要加强党性锻炼和从政道德修养;二是领导干部要廉洁自律,率先垂范,做好表率,经得住权、钱、色的考验,同时切实加强对配偶、子女和身边工作人员的教育、管理和监督;三是增强为人民服务的宗旨意识,紧紧围绕保障与保护,做好国土资源各项服务工作;四是要进一步改进工作作风,不断提高办事效率和质量,