Energy-saving Architectural Designs for Relocation Residential Districts in North Jiangsu Province of China

By investigating present relocation residential districts for peasants whose houses are removed for the unified planning of rural areas in north Jiangsu Province, as well as residents' feelings about the environment of residential district, main architectural structures and energy consumption conditions, the indoor thermal environment, use of main heating and cooling facilities, residents' satisfaction on the acoustical and luminous environment, major space-enclosing structures and calculation of energy-saving designs are analyzed, and suggestions are given for the architectural design of relocation residential districts in the study area. It is stressed that the relationship between energy conservation and architectural layout, orientation, lighting, ventilation, selection of enclosing-structure materials, facade, color and style should be properly handled in the planning, and the focus is to control building orientation and shape coefficient, on the basis of which energy-saving designs of windows, exterior walls and roofs can be done. Energy consumption of present residential buildings is calculated and analyzed to bring forth new ideas to the energy-saving designs for relocation residential districts in north Jiangsu Province, and establish an architectural energy-saving system suitable for climatic and natural conditions of north Jiangsu to instruct the energy-saving designs of relocation residential districts in the study area.

Geological Characteristics and Ore-controlling Factors of the Beiya Gold–Polymetallic Ore Deposit, Northwestern Yunnan Province

Based on comprehensive petrological, geochronological, and geochemical studies, this study analyzed the relationships between the Beiya gold-polymetallic skarn deposit and quartz syenite porphyries, and discussed the source（s） and evolution of magmas. Our results suggest that syenite porphyries（i.e. the Wandongshan, the Dashadi, and the Hongnitang porphyries）, which formed between the Eocene and the early Oligocene epochs, are the sources for the gold-polymetallic ores at the Beiya deposit. Carbonate rocks（T2 b） of the Triassic Beiya Formation in the ore district provide favorable host space for deposit formation. Fold and fault structures collectively play an important role in ore formation. The contact zone between the porphyries and carbonates, the structurally fractured zone of carbonate and clastic rocks, and the zone with well-developed fractures are the ideal locations for ore bodies. Four types of mineralization have been recognized： 1） porphyry-style stockwork gold–iron（copper） ore, 2） skarn-style gold-iron（copper and lead） ore in the near contact zone, 3） strata-bound, lense-type lead–silver–gold ore in the outer contact zone, and 4） distal vein-type gold–lead–silver ore. Supergene processes led to the formation of oxide ore, such as the weathered and accumulated gold–iron ore, the strata-bound fracture oxide ore, and the structure-controlled vein-type ore. Most of these ore deposits are distributed along the axis of the depressed basin, with the hypogene ore controlling the shape and characteristics of the oxide ore. This study provides critical geology understanding for mineral prospecting scenarios.

Characteristics of Shale Reservoir and Sweet Spot Identification of the Lower Cambrian Niutitang Formation in Northwestern Hunan Province, China

The accumulation and productivity of shale gas are mainly controlled by the characteristics of shale reservoirs;study of these characteristics forms the basis for the shale gas exploitation of the Lower Cambrian Niutitang Formation(Fm),Southern China.In this study,core observation and lithology study were conducted along with X-ray diffraction(XRD)and electronic scanning microscopy(SEM)examinations and liquid nitrogen(N2)adsorption/desorption and CH4 isothermal adsorption experiments for several exploration wells in northwestern Hunan Province,China.The results show that one or two intervals with high-quality source rocks(TOC>2 wt%)were deposited in the deep-shelf facies.The source rocks,which were mainly composed of carbonaceous shales and siliceous shales,had high quartz contents(>40 wt%)and low clay mineral(<30 wt%,mainly illites)and carbonate mineral(<20 wt%)contents.The SEM observations and liquid nitrogen(N2)adsorption/desorption experiments showed that the shale is tight,and nanoscale pores and microscale fractures are well developed.BJH volume(VBJH)of shale ranged from 2.144×10^-3 to 20.07×10^-3 cm^3/g,with an average of 11.752×10^-3 cm3/g.Pores mainly consisted of opened and interconnected mesopores(2–50 nm in diameter)or macropores(>50 nm in diameter).The shale reservoir has strong adsorption capacity for CH4.The Langmuir volume(VL)varied from 1.63 to 7.39 cm^3/g,with an average of 3.95 cm^3/g.The characteristics of shale reservoir are controlled by several factors:(1)A deep muddy continental shelf is the most favorable environment for the development of shale reservoirs,which is controlled by the development of basic materials.(2)The storage capacity of the shale reservoir is positively related to the TOC contents and plastic minerals and negatively related to cement minerals.(3)High maturity or overmaturity leads to the growth of organic pores and microfractures,thereby improving the reservoir storage capacity.It can be deduced that the high percentage of residual gas in Niutitang Fm results from the strong reservoir storage capacity of adsorbed gas.Two layers of sweet spots with strong storage capacity of free gas,and they are characterized by the relatively high TOC contents ranging from 4 wt%to 8 wt%.

Petrogenesis of the Early Cretaceous Tiantangshan A-type Granite in northwestern Guangdong province, SE China and tectonic implications

1 Introduction During the late Mesozoic times,the SE China is characterized by extensive magmatism and mineralization.The widely distributed granitoids with different(I-,S-and A-)types have been inferred to be closely related to the large-scale polymetallic mineralization.The Nanling tungsten-tin polymetallic belt is endowed with considerable

40^Ar-39^Ar Dating of the Mahuaping W-Be deposit, Northwestern Yunnnan Province, China, and its Geological Significance

Objective Located near the intersection of Yangtze craton, Tibet- Sanjiang orogen and Songpan-Ganzi orogen of Northwest Yunnan Province, the Mahuaping deposit is a unique large -scale tungsten-beryllium-fluorite ore deposit ever discovered in this area. In recent years, many studies have been carried out in Sanjiang Tethyan metallogenic belt and aforementioned adjacent regions. To date, however, little attention has been paid to this deposit, for example, the geochronology of Mahuaping W-Be deposit still remains unsolved. In this study, we have pioneered research about muscovite 40Ar-39Ar age to better understand the geochronology of the Mahuaping W-Be deposit.

Magnetic Method Surveying and Its Application for the Concealed Ore-Bodies Prospecting of Laba Porphyry Molybdenum Ore Field in Shangri-La, Northwestern Yunnan Province, China

Recently, a number of large molybdenum (-copper) deposits have been discovered successively in the Laba area, Shangri-La county, northwestern Yunnan province. The investigation confirmed that there is a superlarge porphyry-skarn hydrothermal vein type molybdenum-polymetallic- metallogenic system with the total prediction reservoir of more than 150 mt molybdenum. The porphyry intrusions contributed to the mineralization closely, the superficial little vein molybdenum (-copper, lead, silver) ore-bodies are usually located in faults and fractures, and the deep porphyry type ore-bodies occurred in the granodiorite porphyries, the skarn type ore-bodies occurred in the contact zone intrused into Triassic limestone or Permian basalts. Laba ore block is a new exploration area with great prospecting potential. In order to reduce the target area and guide the further exploration work, the magnetic method measurement about 3.3 square kilometres was carried out in the ore field. This paper presents an application of analyzing the horizontal and vertical derivative, using Fast Fourier Transform (FFT) filter (FFT high-pass, low-pass, cosine roll-off, suscepbility), calculated spectra frequency energy to predict the depth and intensity of the apparent remanence magnetization of source (Hilbert). The calculated results and magnetic anomalous show that the remanence anomaly is caused by the intrusions into the Triassic limestone and Permian basalts with small anomalies, and the depth of located source is not great. We have identified a number of positions to the three drilled well, the drilled result specify interpretation with very high accuracy. The magnetic method is helpful to identify porphyry mineralization, and judge the shape and depth of the concealed ore-bearing intrusive bodies under the similar geological condition.

Zircon and Apatite U-Pb Geochronology and Geochemistry of the Mafic Dykes in the Shuangxiwu Area, Northwestern Zhejiang Province: Constraints on the Initial Time of Neoproterozoic Rifting in South China

Previous studies have shown that there are some ca.770–750 Ma mafic dykes at the western segment of the Neoproterozoic Jiangnan orogen(JO),and they represent post-orogenic magmatism due to orogenic collapse(Wang

A Guide to the Open Cities(Counties,Cities and Districts)of Sichuan Province

Administrative divisions: ChengduMunicipality:Qingyang District, Jinjiang District,Wuhou District, Chenghua District, JinniuDistrict, Longquanyi District, QingbaijiangDistrict, Jintang County, Shuangliu County,Wenjiang County, Chongzhou City, XinduCounty, Dujiangyan City, Qionglai City,Pixian County, Pujiang County, XinjingCounty, Dayi County, Pengzhou

陕西省国家重点保护野生植物资源及保护现状

依据2021版《国家重点保护野生植物名录》和《陕西省分布的国家重点保护野生植物名录》,对陕西省分布的国家重点保护野生植物资源和保护现状开展了调查研究。结果表明:(1)国家重点保护野生植物共38科67属104种(含种下等级),含石松类1科1属3种,占总数的2.88%;裸子植物2科6属6种2变种,占6.73%;被子植物35科60属85种1亚种10变种,占比高达90.38%。(2)保护植物约占全省维管植物科的18.18%、属的5.09%、种的2.00%,秦岭石蝴蝶、长柱玄参为陕西特有种。(3)新名录保留1999版国家重点保护植物26种,新增78种,含原陕西省地方重点保护植物24种,象鼻兰、曲茎石斛、紫斑牡丹等原无保护级别直接列入的共54种,占全省分布的国家重点保护植物总数的52%;濒危等级分析显示,极危(CR)占4.81%、濒危(EN)和易危(VU)各占24.04%。(4)国家级重点保护植物在陕西省呈现出南多北少的分布特征,镇坪县多达60种(占全省保护植物的57.69%),平利县和佛坪县各有47种。(5)全省各级自然保护区、湿地公园、森林公园等共有249个,在保护区内有分布的保护植物约70种,占总数的67.31%。建议开展新增物种,尤其是对原来无保护级别的54种的资源和分布进行调查与研究,更新自然保护区的保护植物信息且进行动态监测,加大陕西省黄土高原区域植物园建设,为就地保护和迁地保护等提供科学基础。

黔西水城区立火锰矿床成因的地质地球化学约束

二叠纪是华南地区重要的锰富集成矿期。本文以贵州省西部水城区立火锰矿含锰岩系为研究对象,分析影响贵州二叠纪成锰作用的岩相古地理,讨论锰质来源及成因、沉积环境及锰沉淀方式。采用光学显微镜、XRF、XRD和ICP-MS对水城立火锰矿含锰岩系、顶板及底板进行矿物组成、主量、微量及稀土元素分析测试。结果表明,该矿床含锰岩系形成于伸展拉张的台地内部裂陷盆地,锰矿石中见重晶石、石膏、天青石、菱锰矿及菱铁矿等热水沉积矿物,发育热水沉积典型纹层状构造及火山活动长石斑晶硅质交代结构,富含Fe、Mn、Co、Ni、V、Mo等热水沉积元素,具有显著Ce/Ce^(*)负异常稀土配分模式。Mn/Fe、SiO_(2)/Al_(2)O_(3)、Al_(2)O_(3)/TiO_(2)、Co/Ni、Co/Zn、Y/Ho比值及Fe-Mn-(Cu+Co+Ni)×10、Co-Ni-Zn、Co/Zn vs.(Cu+Co+Ni)、LogU/LogTh及Fe/Ti vs.Al/(Al+Fe+Mn)地球化学图解显示水城立火锰矿是热水沉积成因;V/Cr、V/(V+Ni)及Ce_(anom)特征值指示该锰矿床形成于氧化-弱氧化-弱还原海相沉积环境。综合地质、地球化学特征,该矿床锰成矿作用经历了铁锰氧化物(氢氧化物)初始沉淀及铁锰氧化物(氢氧化物)相转化为菱锰矿相的地质演化过程。

广东省传统村落集中连片保护利用全过程导控体系探索

随着我国传统村落的保护发展模式向区域性保护转变,亟待对历史文化资源丰富的广东省展开传统村落集中连片保护利用资源分析与发展建议。利用GIS空间分析、指针评估、实证分析的方法,明确了申报前进行广东传统村落及其基础资源摸查与预申报,规划时依据传统村落集中连片保护利用导则制定保护规划,实施后定期开展实施效果监测进行反馈调节的三阶段引导,探索构建广东省传统村落集中连片保护利用全过程导控体系,并以梅县区为例进行实证分析,以期为优化现有传统村落集中连片保护利用工作的系统性与持续性指导提供参考。

旅游交通碳排放测度与旅游经济脱钩分析——以西北五省(区)为例

以西北五省(区)为例,采用“自下而上”法估算2010—2022年西北五省(区)旅游交通碳排放量,分析其时序特征,运用Tapio脱钩模型测度旅游交通碳排放与旅游经济增长之间的脱钩关系和变化趋势,利用旅游交通碳排放和旅游经济增长数据,验证二者之间环境库兹涅茨曲线模型(EKC)的存在性,探究旅游交通碳排放和旅游经济增长间的关系。(1)西北五省(区)旅游交通碳排放总量呈现先增后降的趋势,各省(区)年平均碳排放量从大到小依次为陕西、新疆、甘肃、宁夏、青海。(2)旅游交通碳排放脱钩指数发展状态为弱脱钩—强脱钩—弱脱钩,多省(区)以弱脱钩状态为主。(3)旅游交通碳排放和旅游经济之间存在“N”型曲线关系,且脱钩指数与经济发展的“N”型曲线关系相吻合。

旅游业高质量发展水平时空演变及障碍因素分析——以西北五省区为例

基于旅游业高质量发展基本内涵,从“创新发展、协调发展、绿色发展、开放发展、共享发展、有效发展”六个维度构建旅游业高质量发展水平评价指标体系,综合运用熵值-TOPSIS模型、收敛性分析、聚类分析和障碍度模型等方法,探究2010-2019年西北五省区旅游业高质量发展水平演化特征及障碍因素。结果表明:(1)西北五省区旅游业高质量发展水平整体呈现缓慢上升态势,逐渐形成以陕西为核心发展区域,外围向南北递减的时空布局,空间非均衡性特征显著;(2)西北五省区旅游业高质量发展水平与不同子系统发展水平的时序演化特征的区域差异性显著,且差距随时间的推移持续增大,可以划分为强势型、稳定型和滞后型三个等级;(3)西北五省区旅游业高质量发展水平的主要障碍因素为实际利用外资、科研经费、专利授权数量、入境旅游收入和入境旅游人数,不同障碍因素对不同地区的影响程度存在明显差异。

山西省旅游休闲街区高质量发展的对策研究

以山西省旅游休闲街区为例,总结了山西省旅游休闲街区的建设与形成,并针对目前存在的主要问题从部门联动提升管理、挖掘特色创新业态、加强软硬件建设提升服务水平、多方营销扩大市场知名度等方面提出了改进建议,以期为促进旅游休闲街区的高质量发展提供有价值的参考。

非正规空间主导下城市更新逻辑与路径

城市非正规空间通常是城市活力集聚中心,能映射城市地域文化特征以促进文化传承,依托非正规空间为主导进行历史街区城市更新可进一步满足居民对幸福生活向往空间需求。本文通过引入非正规空间理念,构建了“居民—文化—设计—政策”分析框架。进一步以湖南省益阳市东门口历史街区为研究对象,从“居民参与引导—地域文化挖掘—地域城市设计—多元治理完善”4个维度出发,提出城市更新设计路径,旨在借助从城市非正规空间视角凝练出的城市文化内涵指导更新,进一步拓宽我国城镇更新的研究视野。

黔西北青山铅锌矿床构造控矿机理及其对深部找矿的启示

【研究目的】青山铅锌矿床地处扬子地块西南缘的黔西北矿集区威宁—水城成矿亚带中段,严格受构造控制,资源潜力巨大。基于前期资料综合分析及野外地质调研,发现矿区构造成生发展过程和构造控矿机理不清、深部找矿勘查方向不明等问题制约了找矿突破。【研究方法】本文应用矿田地质力学理论和方法,通过大比例尺构造剖面精测、不同方向控矿构造力学性质鉴定与不同期次、序次构造筛分,结合区域构造应力场变化特征,揭示了构造控矿机理。【研究结果】自印支期以来,该区的主压应力方向主要历经了北东-南西向→北西-南东向→北东-南西向→近东西向的转变过程,依次形成了早北西构造带、北东构造带、晚北西构造带、南北构造带(构造体系)。通过成矿构造解析及其与成矿关系讨论,厘定了北东构造带为该矿区的成矿构造体系,揭示了构造分级控矿规律:北西向威宁—水城断裂、威水背斜为矿区的一级控矿构造,控制了威宁—水城矿化带或矿田的展布;威宁—水城断裂扭动作用派生的北西向断裂F1、F2,控制了矿床(矿体群)的分布,为矿区的二级控矿构造;F1、F2断裂间的层间断裂破碎带,直接控制了矿体的形态和产状,为三级控矿构造;矿体旁侧的节理裂隙带控制矿脉,为四级控矿构造。【结论】青山铅锌矿床构造分级控矿规律明显,主要受四个等级的控矿构造控制,并形成了与其相对应的4种矿化样式。

协同育人背景下“东北三省一区”地方高校电子信息类专业协同发展探索与实践

该文以哈尔滨理工大学电子信息类为依托,联合东北电力大学、沈阳理工大学、辽宁工业大学及内蒙古工业大学等多所高校电子信息类专业现有资源,结合“东北三省一区”的地缘优势及大学集群优势,通过深度的多校融合,全方位的协同育人,加强一流专业建设,优化培养方案,提升培养质量,从而实现“东北三省一区”战略,对接国家和区域的经济、社会发展需要以及战略新兴产业的需求,实现优质教育资源共建共享,构建“东北三省一区”高等教育高质量发展新格局。

土壤碳氮磷和酶化学计量特征对原始林转换的响应

为了解区域典型农林用地土壤碳、氮、磷、胞外酶生态化学计量特征,采用时空代换法研究湘西北本底一致、土地利用史清晰的常绿阔叶原始林及其转换而来的人工林地、果园、坡耕地和水田0~40 cm土层中有机碳含量、全氮含量、全磷含量、胞外酶活性、计量比值及其与活性碳、氮、磷组分的关系。结果表明,与原始林相比,果园和坡耕地土壤有机碳、全氮、全磷含量的降幅(40%~79%)较高,且深层土壤(20~40 cm)和表土(0~20 cm)的降幅类似,表明原始林转换为果园、坡耕地不利于深层土壤有机碳和养分的保存。果园、坡耕地、水田和原始林土壤碳、氮、磷含量的比值无显著差异。杉木人工林土壤碳、氮、磷含量比值较原始林高60%~124%,说明人工林土壤存在较强的氮、磷素共同限制作用。与原始林相比,土地利用方式转换后,土壤胞外酶活性降低18%~64%;果园和坡耕地表土碳磷获取酶计量比(E_(C/P))也显著降低,而深层土壤E_(C/P)显著升高。土壤中碳含量、氮含量、磷含量、酶活性及其计量比值与活性碳、氮、磷组分含量显著相关。原始林转换导致表土和深层土壤中的碳含量、氮含量、磷含量、胞外酶活性大幅下降,微生物底物有效性降低,表明土壤质量/健康退化。土壤碳、氮、磷含量计量比和酶计量比值对原始林转换的响应较弱,对土壤健康的指示作用有待进一步探索。

农牧交错地带撂荒地遥感识别研究--以青海省海东市乐都区为例

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