北京市别墅区私家庭院园林绿化管理

对北京市别墅区私家庭院园林绿化,以及日常养护和管理方法,根据现场实际经验进行总结并简要的介绍.     

Distribution and identification of the low-velocity layer in the northern South China Sea

The low-velocity layer (LVL), closely related with tectonic activities and dynamic settings, has always been a hot topic in the deep crustal structure studies. The deep seismic (OBS/OBH) and onshore-offshore experiments have been extensively implemented in the northern South China Sea (SCS) since the 1990s. Six seismic profiles were finished on the northern margin of SCS by domestic and international cooperations. The features of crustal structures were revealed and five velocity-inversion layers were discovered. Among them three LVLs with 3.0—3. 5 km·s-1 velocity are located in the sedimentary structure (2.0—6.0 km in depth and 2.0—4. 6 km in thickness) of the Yinggehai Basin and Pearl River Mouth Basin. They were identified by the reflective and refractive phases for their shallow depth. The other two LVLs with 5.5—6.0 km·s-1 velocity generally existed in the middle crust (7.0—18.0 km in depth) with an about 2.5—6.0 km thickness in the transitional crustal structure of the northeastern and northwestern SCS. They were detected by the refractive phase from their overlain and underlying layers. We explored the possible tectonic formation mechanisms combining with previously reported results, which provided evidence for the formation and evolution of SCS.     

Shell concentrations of Early Silurian virsianid brachiopods in northern Guizhou： Temporal and spatial distribution and tempestite formation

Shell beds in the uppermost Xiangshuyuan Formation and its coeval Upper Shihniulan Formation （Lower Silurian）, northern Guizhou, SW China, are interpreted as tempestites occurring on the Upper Yangtze Platform. The shells are dominated by two endemic and transient virgianid （brachiopod） taxa, Paraconchidium shiqianensis and Virgianella glabera, which vary in relative abundance and deposited as fragments of valves with cemented micrite that differs from the surrounding sediment, demonstrating that the shells were not originally preserved in growth positions. The thicknesses of individual shell layers vary from ten centimeters to more than four meters. Shells had been strongly stirred up by high-energy currents, mainly caused by ocean storm events and probably related to the profile of the geographic shape of the coastline. Fragmentation of shells, in particular, their thinning anterior parts of ventral and dorsal valves are more intensive. The benthic assemblages are from lower BA2 to upper BA3 in depth, assigned to near shoal belt in geographic background. Breakage and stacking density are of the indexes of proximal and distal transportations. Northern Guizhou was located within the lower latitudes of the Southern Hemisphere during the Silurian time, and obviously affected the depth of the virgianid inhabitation. Most of these shells were disturbed repeatedly by surges. It is inferred that on average, several ten thousand years of growth of shells were required for development of shell layers, followed by storm disruption.     

狮脑山公园旅游景点总体开发研究探讨

结合狮脑山公园旅游景点的总体开发和设计。从园林的本质入手。提出了风景园林的规划设计必须突出人文历史主题、体现地域文化特色。才能抓住园林景现设计的灵魂，从根本上扩大知名度、影响力和感召力，继而促进旅游资源经济的发展和文化的交流与传播。     

北宋皇家园林艮岳的文化内涵探析

艮岳是北宋时期在都城东京建造的一座著名的皇家园林。它在有限的空间范围内，充分利用山石、水体、建筑、动植物等造园要素，创造出气势恢宏、构思缜密的皇家自然山水园林，精美而典雅。山石的设计，水体的聚合，建筑的构造，植物的配置，动物的放养，这些方面充分体现出这座皇家园林的文化内涵。     

从北方神鹿到北方龟蛇观念的演变——关于图腾崇拜与四象观念形成的补充研究

作者曾论述过四象观念起源于华夏族的图腾崇拜，即东方苍龙源于东方东夷民族的龙图腾，北方龟蛇源于北方夏民族的龟蛇图腾等。近发现战国以前四象文物图案北方是鹿而不是龟蛇。该文因此作出补充研究，论证了北方神鹿也是北方民族的图腾，并且论述了从神鹿到龟蛇的演变过程和思想基础     

加快浙北地区农业剩余劳动力转移的对策

浙江北部地区的社会经济发展速度和农业劳动力转移的速度都远远高出全国的平均水平，但由于区域差异和历史的原因，浙江北部地区还存在受精劳动的过剩，并且转移难度在加大，针对浙北地区农村经济发展和农业剩余劳动力的产生原因和转移现状，提出了调整农业内部结构、大力发展第三产业、加快城市化进程、进一步发展和壮大中小企业和提高农业劳动力素质等加快农村剩余劳动力转移的途径和对策。     

北方高校绿色图书馆的构建

根据北方的气候特点,阐述了构建北方高校绿色图书馆的必要性和绿色图书馆的建设内容,探讨了构建北方高校绿色图书馆的途径。     

中国南海北部新生代古环境的变迁

为了解中国南海北部新生代古环境的变迁,在分析参考相关科学成果的基础上,综述该区域的古环境的变迁。早第三纪珠江口盆地以陆相、河湖相沉积为主,气温凉爽,属暖温带至北亚热带环境;晚第三纪,从晚渐新世到上新世晚期,该区域由淡水湖泊沉积环境,逐渐过渡到海、陆交互环境、潮问带或浅水滨海沉积环境、浅海环境等,气候也演变成潮湿的热带、亚热带气候。第四纪,随着冰期、间冰期的波动,沉积环境也分别呈近岸陆面剥蚀环境一浅水滨海沉积环境或浅海环境的交替。香港地区“岗岭山坡”区段属陆面风化剥蚀环境,而在“河谷平原”则由陆面风化剥蚀环境演变为陆面河、湖相或沼泽沉积环境。古环境的变迁主要受太阳幅射脉动状态等综合因素的影响。