临沂市节约集约利用土地思考

全面分析了当前临沂市建设用地利用中存在的主要问题和制约因素,结合临沂市作为全省"两型"社会建设改革试点城市这一背景,借鉴国内外土地节约集约利用方面好的做法,提出通过规划计划、城乡统筹、机制创新、舆论宣传4个方面共同推进,走出一条临沂特色的土地节约集约新路子。     

A Study of Connections Between Solar Flares and Subsurface Flow Fields of Active Regions

We investigate the connections between the occurrence of major solar flares and subsurface dynamic properties of active regions. For this analysis, we select five active regions that produced a total of 11 flares with peak X-ray flux intensity higher than M5.0. The subsurface velocity fields are obtained from time–distance helioseismology analysis using SDO/HMI (Solar Dynamics Observatory/Helioseismic and Magnetic Imager) Doppler observations, and the X-ray flux intensity is taken from GOES (Geostationary Operational Environmental Satellites). It is found that among the eight amplitude bumps in the evolutionary curves of subsurface kinetic helicity, five (62.5%) of them had a flare stronger than M5.0 occurring within 8 hours, either before or after the bumps. Another subsurface parameter is the Normalized Helicity Gradient Variance (NHGV), reflecting kinetic helicity spread in different depth layers; it also shows bumps near the occurrence of these solar flares. Although there is no one-to-one correspondence between the flare and the subsurface properties, these observational phenomena are worth further studies to better understand the flares’ subsurface roots, and to investigate whether the subsurface properties can be used for major flare forecasts.     

关中平原城市群“交通-产业-环境”耦合协调发展的动态演化特征分析

关中平原城市群是丝绸之路经济带的重要城市群。运用耦合协调度模型定量分析了关中平原城市群2008—2019年交通、产业和环境三系统耦合协调发展关系的变化规律和时空分布特征。结果表明：（1） 城市群交通、产业和环境各子系统发展评价指数差异化提升,交通系统发展增长率远超过其他两系统,产业和环境发展与交通系统的矛盾较为突出。（2） 三系统综合发展指数空间分布单极态势明显,城间发展水平差异加剧,其中西安市和咸阳市作为极热点城市存在,其余城市为外围受辐射冷点区。（3） 城市群耦合协调发展水平整体上趋于优化提升态势,但仍处于濒临失调状态。其中,西安市一直处于高耦合协调的单极态势,但耦合协调度的城间差距逐渐缩小,耦合协调度等级为协调等级的城市逐渐增多,趋于集中连片式分布。研究结果可以明确关中平原城市群交通、产业和环境三系统耦合协调发展存在的问题,为高质量发展相关政策的制定提供一定的参考依据。     

高分遥感数据在胶东水道地区金成矿远景区圈定中的应用研究

近年来遥感技术在分辨率、蚀变信息提取和覆盖能力方面有了大幅提升,已成功应用于国内外自然资源调查领域,并取得了不错的效果,遥感解译正成为地质调查工作中不可或缺的一种工作手段。水道地区位于华北克拉通东南缘与苏鲁造山带东北缘的衔接部位,是胶东牟平—乳山金矿带的核心地段,金矿资源丰富,目前运用遥感解译及信息提取技术开展该区的地质找矿工作较为薄弱。笔者等利用ENVI53遥感图像处理与分析软件对ASTER(先进星载热辐射与反射辐射计, Advanced Spaceborne Thermal Emission and Reflection Radiometer)、GF- 1共9景遥感数据进行处理,使制作的图像信息逼真、线性构造明显,共解译线性构造929条、环形构造89个、韧性剪切带15条,其中北北东向断裂、环形构造和韧性剪切带边缘地段是金矿床产出的有利部位;基于ASTER数据采用“去干扰异常主分量门限技术”进行主成分分析,提取了铝、镁羟基和铁染异常信息,圈定异常浓集区36处,金矿床产出位置一般发育较强铝、镁羟基（Al—OH、Mg—OH)异常;结合区域金矿成矿规律开展了成矿预测,圈定金成矿远景区12处,经野外查证,新发现金矿点2处。遥感技术可为区域矿产地质调查提供强有力的技术支撑。     

青海祁漫塔格矿集区矿产资源可利用性等级评价探索

青海祁漫塔格矿集区成矿条件优越,矿产资源丰富,为了给矿集区矿产资源的开发布局优化提供支撑,通过可利用性等级划分的方法,对该矿集区的部分矿产资源进行了可利用性评价的探索研究。以选矿回收率为依据,分区域、分矿种制定可利用性评价等级表,再根据矿山现场选矿回收率进行“选矿回收率修正值”的计算,对比相应的可利用性评价等级表确定该矿山有用矿物的可利用性等级,最后根据有用矿物的可利用性等级确定该矿山的可利用性等级。结果表明: 祁漫塔格矿集区的15座矿山(矿床)中易利用的占40.00%,中等可利用的占26.67%,难利用的占33.33%。研究结果可为政府矿业部门的管理及开发布局优化提供一定的参考。     

Probabilistic forecasting of landslide displacement accounting for epistemic uncertainty: a case study in the Three Gorges Reservoir area,China

Accurate and reliable displacement forecasting plays a key role in landslide early warning. However, due to the epistemic uncertainties associated with landslide systems, errors are unavoidable and sometimes significant in traditional methods of deterministic point forecasting. Transforming traditional point forecasting into probabilistic forecasting is essential for quantifying the associated uncertainties and improving the reliability of landslide displacement forecasting. This paper proposes a hybrid approach based on bootstrap, extreme learning machine (ELM), and artificial neural network (ANN) methods to quantify the associated uncertainties via probabilistic forecasting. The hybrid approach consists of two steps. First, a bootstrap-based ELM is applied to estimate the true regression mean of landslide displacement and the corresponding variance of model uncertainties. Second, an ANN is used to estimate the variance of noise. Reliable prediction intervals (PIs) can be computed by combining the true regression mean, variance of model uncertainty, and variance of noise. The performance of the proposed hybrid approach was validated using monitoring data from the Shuping landslide, Three Gorges Reservoir area, China. The obtained results suggest that the Bootstrap-ELM-ANN approach can be used to perform probabilistic forecasting in the medium term and long term and to quantify the uncertainties associated with landslide displacement forecasting for colluvial landslides with step-like deformation in the Three Gorges Reservoir area.     

基于无人机单镜头绕飞倾斜摄影的1:500不动产测量技术研究

传统的不动产测量或者地籍测量利用全站仪或者RTK进行测量,速度慢,效率低.本文介绍了无人机(un-manned aerial vehicle,UAV)倾斜摄影1:500不动产测量技术新方法,相比传统的五镜头相机,采用单镜头绕飞技术,硬件成本降低一半,数据量减少70％以上,给出了像控点布设与测量,利用Smart3D进行倾斜摄影三维建模,利用裸眼立体测图软件EPS地藉测量的技术流程.以长安县任家庄村1:500不动产测量为例,说明该技术可以满足1:500不动产测量和地籍测量的需要,速度快,效率高,成本低.     

Main Controlling Factors of CMB Reservoir in Northeast China: Taking Jixi Basin as An Example

<正>1 Introduction The coal bearing basin in the east of Northeast China is many,and the little or middle fault depression of low or middle rank coal bearing basin is the main,including Jixi,Boli,Shuangyashan,Hegang,Hulin and other basins(TANG Shuheng,2000).Several coal bearing basins have seen well show of CBM(Table1).But the research of the     

地图学与地理信息工程专家王家耀教授

王家耀,地图学与地理信息工程专家.1936年5月出生于湖北省武汉市.1961年毕业于解放军测绘学院地图制图学专业,毕业后留校执教至今.1986年任地图制图系副教授,1989年任教授,1993年任地图制图学与地理信息工程学科专业博士研究生导师,享受政府津贴.     

国内外煤炭资源量报告对比研究——以南澳WINTINNA矿区为例

以南澳州WINTINNA煤炭勘查区为实例,选取以我国《固体矿产资源储量分类GB／T17766—1999）标准为勘查标准的《南澳WINTINNA勘查区详查地质报告》和以《澳大利亚矿产资源和矿石储量公布规范（JORC规范）2004）为标准的《WINTINNA煤炭资源量评述报告》作为对照,从报告结构、矿产资源量估算、煤炭资源量结果、资源量变化原因四个方面进行了详尽的对比研究,通过算理与算法对资源量变化原因进行剖析,深入阐述了以JORC标准为主导的国际资源储量估算领域的指导思想和国际通行估算方法,指出了国内外在煤炭资源储量估算领域的不同,对提高我国的资源储量报告在国外市场上的效力、实现国内外主要资源储量标准分类下该类型资源储量报告的快速准确映射和转换具有实际意义。