江苏沿海地区旅游发展探讨

深入分析了江苏沿海地区的旅游资源特点和旅游开发现状,在此基础上结合国内外旅游发展趋势的判断,对该地区今后的旅游发展进行了初步探讨。     

Geothermal measurements in the pilot-boreholes of the china continental scientific drilling

The geothermal measurements in the pilot-boreholes of the China Continental Scientific Drilling (CCSD) indicate that the temperature gradients in the target area of the deep drilling range from 19 to 26℃/km, which is lower than that (25—30℃/km) for the global continental area and similar to that for the KTB (21—28℃/km). Thermal conductivity measurements for 44 core samples show that the ultra-high pressure (UHP) metamorphic rocks have 50% higher thermal conductivity (with a mean of 3.94±1.26 W/mK) than that for the average value of the upper crust. The measured heat flow values vary between 76 and 80 mW/m², higher than that for the global continental area (65±1.6 mW/m²) and the continental China (61±15.5 mW/m²) as well as the adjacent North Jiangsu Basin (68 mW/m²), but lower than that below 1000 m in the KTB (85 mW/m²). The elevated heat flow in the pilot-boreholes can be attributed to the lateral heat concentration due to higher rock thermal conductivity of the UHP belt than that of the adjacent rocks. Lower deep temperature in the target area of the deep drilling can be expected due to the lower measured temperature gradient, which means that the Sulu area is geothermally suitable for continental deep drilling.     

Species of Antarctoscyphus Peña Cantero,García Carrascosa and Vervoort, 1997 (Cnidaria: Hydrozoa: Symplectoscyphidae) collected by US Antarctic expeditions: biogeographic implications

Antarctoscyphus is one of the most characteristic genera of Antarctic benthic hydroids, with nine of the 10 known species considered to be endemic to the Antarctic; only Antarctoscyphus elongatus is also present in the sub-Antarctic region of Kerguelen. Accordingly, the genus was considered to have an Antarctic–Kerguelen distribution. Here we present the results of the study of the species of Antarctoscyphus collected from different Antarctic areas and from the Magellan region, during several expeditions under the United States Antarctic Research Program between 1958 and 1986. A scanning electron microscopy survey of all known species of the genus was carried out. Eight of the 10 known species of Antarctoscyphus were found in the collection, with A. spiralis and A. elongatus being the most frequently found species, whereas A. biformis, A. fragilis and A. gruzovi were found only once. The type material of A. biformis was reviewed and re-described. This study represents the second records for A. biformis and A. fragilis. The new records allow updating of the biogeographic knowledge on the distribution of several species: A. mawsoni, so far considered endemic to East Antarctica, and A. asymmetricus, considered endemic to West Antarctica, are here considered to have a Circum-Antarctic distribution. Additionally, A. fragilis, previously considered endemic to the Weddell Sea, is now considered to have a West Antarctic–Patagonian distribution, as it was recorded off the Pacific Magellan region. The records gathered here allow us to change the distribution pattern of the genus from Antarctic–Kerguelen to Pan-Antarctic. The study has allowed us to increase the known bathymetric range for some species, some reaching much deeper waters than previously known. Hence, A. fragilis, A. grandis and A. mawsoni, hitherto considered shelf species, are reported from bathyal bottoms of the continental slope. A general discussion on the bathymetric and geographic distribution of all known species is included.

www.zoobank.org/urn:lsid:zoobank.org:pub:1C7ED3F2-3FF1-4C5C-85BB-FAAF557AC2ED     

Mysidacés (Crustacea) de Kerguelen,Crozet et Bouvet (Océan Austral) récoltés par la Japonaise,le Marion-Dufresne (1972–82) et dans des contenus stomacaux d'oiseaux

This study deals with the Mysidacea (Crustacea) collected during the cruises organized by T.A.A.F. (Terres Australes et Antarctiques Françaises), between 1972 and 1982, in the subantarctic part of the Southern Ocean, off Bouvet, Marion, Prince Edward, Crozet, Kerguelen and Heard Islands. In spite of the large numbers of samples taken between the littoral and 2000 m, with various bottom sampling gears, only 8 species were caught. At the Kerguelen islands, the genus Mysidetes, with 2 species including M. morbihanensis n. sp., was the main constituent of the benthic littoral mysidacean fauna, while Boreomysis inermis was the main bathyal species. The analysis of stomach contents of birds indicates that some bathypelagic mysidacean species ascend to the surface layer.     

New and little-known genera of cheilostome Bryozoa from the New Zealand region

The diagnostic characters of the cavernicolous genus Spelaeoblatta Bolívar, 1897, previously known only from a female, are given based on the male of S. thamfaranga n. sp. from Thailand. Nocticola adebratti n. sp. from Sabah is described.     

江苏省景观生态风险评估及其与城镇化的动态响应

【目的】 评估景观生态风险,探明其与城镇化的动态响应,为江苏省科学调控高水平生态环境保护和高质量城镇化发展提供依据。【方法】 选用2010年Landsat TM和2018年Landsat OLI遥感影像数据,借助ENVI 5.3、ArcGIS 10.2软件,通过景观格局指数分析景观格局变化,综合评估景观生态风险并探讨其层级结构特征,定量测度景观生态风险与城镇化两者“增量”的响应类型及相关关系。【结果】 江苏省主要景观为耕地、建设用地和水域,其中耕地是基质景观。在景观格局演变中,耕地的异质性增强,建设用地以外部扩张为主,水域基本不变。景观生态风险提升显著,均值由0.123 6上升至0.149 9,现状景观生态风险TOP3城市为苏州、无锡和常州;景观生态风险自北向南逐渐升高,集聚分布态势和经济指向性趋势明显。景观生态风险与城镇化水平“增量”的耦合度大于0.8,城市建设用地快速扩张对景观生态风险快速上升的贡献度高,正向相关系数高达0.83。【结论】 江苏省景观格局变化显著,景观生态风险与城镇化水平同向提升、高度耦合。动态响应类型包括徐州、宿迁、盐城、淮安和扬州构成的低敏感区、沿江地区和连云港构成的中敏感区、苏州和无锡构成的高敏感区。苏南5市和南通“摊大饼式”土地城镇化发展迅速,经济发展水平高的苏南地区是景观生态高风险区域,土地城镇化会加速生态环境恶化,而人口城镇化会缓冲恶化速度,经济结构的转变影响式微。     

江苏省森林资源-环境-经济复合系统的结构模型

阐述了江苏省森林资源-环境-经济复合系统(FEES)可持续发展的原理,分析了江苏省FEES的基本结构及各要素之间的关联。应用改进的解释结构建模方法(ISM)建立江苏省FEES的结构模型,使得FEES各要素之间的层次更为分明。     

豫南燕山期花岗岩蠕变特性及非线性蠕变损伤模型

豫南信阳地区燕山期高钾钙碱性I型花岗岩分布广泛,岩石性质对深埋地下洞室围岩开挖及支护设计具有重要影响。以豫南某大型水电站地下厂房区花岗岩为研究对象,在对其地质分布情况及矿物成分调查测试基础上,进行三轴压缩蠕变试验,揭示了围岩蠕变特性及加载过程中的损伤演化性质,采用等时曲线法进行花岗岩蠕变长期强度分析。考虑蠕变过程中岩石发生的损伤累积,建立变黏性系数的黏壶元件,并代替传统西原正夫模型中Newton黏壶,构建了能够描述加速蠕变阶段的蠕变损伤模型。结果表明：在整个蠕变过程中,花岗岩的总变形量以瞬时弹性变形为主,最终的蠕变破坏表现出脆性剪切破坏的特征;围压对剪切裂缝的扩展具有主要抑制作用;长期强度随围压增大而减小,与常规三轴试验结果相比,长期强度分别下降6.37%和21.0%;采用Levenberg-Marquardt优化算法+通用全局优化算法对非线性蠕变损伤模型进行参数辨识及拟合,理论值与试验值吻合较好,验证了非线性蠕变损伤模型对于岩石全过程蠕变特征描述的合理性及适用性。研究成果对保障豫南燕山期花岗岩地区的工程建设优化设计和安全建设具有重要意义。     

江苏岸外潮流沙脊群形成的过程与机制

在总结前人研究成果的基础上,结合３９个钻孔的岩相分析及１５０００年以来东中国海潮流系统演变的数值模拟结果,对江苏岸外潮流沙脊群发育的动力条件、物质基础、形成时代及演变过程进行了探计讨。结果表明,江苏岸外潮流沙脊群发育的主要动力,是以Ｊｉａｎｇ港为波腹点（顶点）的辐合辐散的潮流系统。该潮流系统的形成,主要是由江苏海岸,尤其是山东半岛南岸岸线位置及轮廓决定的。潮流沙脊群开始发育的时间,比通常认为的要早     

略论基因诊断

本文是关于基因诊断的原理及其分子生物学技术的概述．着重介绍了基因探针和Ｓｏｕｔｈｅｒｎ印迹、聚合酶链式反应（ＰＣＲ）及等位基因特异聚合酶链式反应（ＡＳ－ＰＣＲ）和限制性片段长度多肽性（ＲＦＬＰ）分析的原理、方法、技术特点和应用范围．最后，讨论了其发展前景．