This data is the comprehensive monitoring data set of Nadi gully debris flow (2021) produced by automatic rainfall station, mud level monitor and line collision sensor. The above data collection points are nadigou debris flow monitoring points in Jiuzhaigou County scenic area, Aba Tibetan and Qiang Autonomous Prefecture, Sichuan Province. The monitoring data are mainly analyzed by Sichuan Institute of land and space ecological restoration and geological disaster prevention and control. The instruments used include dd-zxcg-001 line collision sensor, dd-ylj-001 automatic rainfall station and dd-nwj-001 mud level monitor. The collection time is 2021.
ZHANG Qun
1) Data content The experimental data of indoor weir plug instability model were collected in Wenchuan County, Sichuan Province and Chengdu, Sichuan Province. The experimental analysis is mainly completed in the State Key Laboratory of geological disaster prevention and geological environment protection. The instruments used include moisture content sensor, high-speed camera, test water tank, etc. The collection time is 2019-2021 2) Data source: experimental analysis conducted by the State Key Laboratory of geological disaster prevention and geological environment protection Processing method: according to the actual particle composition of the weir plug body, the test soil with different particle sizes is screened out by a sieve analyzer, then evenly mixed together according to the weight proportion, stacked according to the predetermined size, and the sensor is buried at the fixed position. Open the valve to a constant flow of 0.25 L / s, and at the same time, open the water content sensor and two high-speed cameras for observation until the dam body is damaged and the remaining dam body is stable. After the experiment, all the experimental data were sorted and analyzed 3) The data are collected by correlation analysis instrument, which is true and reliable. 4) It can provide data support for revealing the disaster mechanism of wide moderate narrow and steep gully type debris flow in strong earthquake area; The data of maximum scouring depth, impact force, abrasion force and scouring and silting volume can provide reference for the design of debris flow disaster prevention and control engineering
余 斌
This data records the construction process of large-scale physical model test platform for high-level and long-range geological hazards. The test platform is located in the plant area of Chengdu Qingbaijiang Aosite Slope Protection Engineering Co., Ltd. The system is a multifunctional large-scale test device designed and built independently, which can be used to simulate the surface dynamic mechanism and protection of geological disasters. Compared with the famous large-scale geological disaster dynamic process model test system built by the U.S. Geological Survey, the system can change the slope arbitrarily, and can observe the transformation of debris flow or debris flow flow state and structure from the side.
ZHANG Shilin
During the development of multi-mode communication unit prototype for debris flow monitoring, early warning communication and management, a series of tests were carried out in Beijing. The sensor status information, communication terminal status information, product online and offline information and alarm information in the test were reported and recorded through the multi-mode communication unit. This record gives the report record during the test. The data is the original log records exported from the background database of the control center, which are listed in Excel table according to the display of the control center, so as to improve its readability. The data can be used as a reference for the development of debris flow monitoring communication equipment.
DUAN Jiangnian
The data includes ecological policy documents after 1979, involving laws, regulations, terms and schemes on Ecological Governance and ecological management at the national and local government levels. The data combed the evolution process of the country in ecological and environmental governance, as well as the environmental strategies established in different development periods. The research group collected various documents of ecological policies on the government's official website and local yearbooks every year from 2018 to 2021. In order to ensure the relative integrity and pertinence of the data, this study sorted and selected the policy texts according to the following principles: ① the main sources of policies are the government's official website and its subordinate departments; ② Documents in line with ecological policies; ③ Select laws and regulations, plans, opinions, methods, detailed rules, regulations, announcements, notices, resolutions and other documents reflecting ecological environment policies. Construct the categories of the policy documents studied, that is, determine the perspective of analyzing the policy text, and define the primary and secondary categories, so that the chief coder and sub coder can understand it uniformly; ② Code the policies one by one after preparing the coding table according to the main category, that is, after carefully reading the policy content, if its content meets the analysis dimension required by the category construction table, fill its code into the coding table; ③ The data of this study is based on the official website and field policy research, which can effectively distinguish the contents of categories involved in the policy text. Therefore, the content analysis of this study has a good level of validity The innovation and evolution of policies change the impact of human activities on the environment to a certain extent, and the guidance and impact of ecological policies on environmentally vulnerable areas are more obvious. If we can fully grasp the dynamic change process of ecological policies and understand the evolution law of ecological policies, we can formulate ecological policies conducive to improving the environment, This paper studies the evolution law of Qilian mountain ecological policy issued since 1979 by using the content analysis method, in order to provide a scientific basis for the formulation of Qilian mountain ecological policy
DING Wenguang , XIE Shuntao
The fossil records of large amphicyonids in Asia are rare and fragmentary, and their evolution and dispersal are also unclear. Here we present new dental material from Laogou, Linxia Basin, Gansu Province, belonging to the Hujialiang Formation, Middle Miocene. The new material is very similar to Amphicyon zhanxiangi from the Dingjia’ergou fauna of the Zhang’enbao Formation, Tongxin, Ningxia, and can be referred to this species. It is younger than the Tongxin material and differs from the latter by having better-distinguished cusps in upper molars, supporting this species is probably the ancestor to the omnivorous Arctamphicyon found in the Siwaliks, Yuanmou, and the Lower Irrawaddy. This lineage might immigrate to southern and southeastern Asia by the Late Miocene, and adapted to an increasing omnivorous diet due to more available plant material in tropical and subtropical regions.
QIGAO Jiangzuo
The three-dimensional model obtained by three-dimensional inversion processing of MT data completed in Qulong mining area and the inversion of MT full impedance data show the shallow three-dimensional electrical structure characteristics of 5km with strong anisotropy. The isosurface of high resistivity body in Qulong mining area shows that the high resistivity anomaly with resistivity greater than 200 Ω• m mainly reflects the distribution of intermediate acid intrusive rocks, and the low resistivity anomaly less than 200 Ω • m mainly reflects the distribution characteristics of Quaternary sedimentary strata, rhyolite and tuff of Yeba formation. Based on the resistivity structure in Qulong ore concentration area, combined with some drilling data and physical property data collected, a three-dimensional geophysical model of Qulong ore concentration area is constructed by using GOCAD software. Compared with the three-dimensional model star of Jiama ore concentration area, due to the limitation of data, the three-dimensional geophysical model of Qulong ore concentration area is slightly worse. But it is also the only three-dimensional geophysical model provided so far. The model is helpful to the development and utilization of Qulong ore concentration area.
HE Rizheng
The Jiama porphyry copper deposit in Tibet is one of the proven ultra-large-scale copper deposits in the Qinghai-Tibet Plateau at present, with the reserves of geological resources equivalent to nearly 20×106 t. However, it features wavy and steep terrain, leading to extremely difficult field operation and heavy interference. This study attempts to determine the effects of the tensor controlled-source audiomagnetotellurics (CSAMT) with high-power orthogonal signal sources (also referred to as the high-power tensor CSAMT) when it is applied to the deep geophysical exploration in plateaus with complex terrain and mining areas with strong interference. The test results show that the high current provided by the highpower tensor CSAMT not only greatly improved the signal-to-noise ratio but also guaranteed that effective signals were received in the case of a long transmitter-receiver distance. Meanwhile, the tensor data better described the anisotropy of deep geologic bodies. In addition, the tests also show that when the transmitting current reaches 60 A, it is still guaranteed that strong enough signals can be received in the case of the transmitter-receiver distance of about 25 km, sounding curves show no near field effect, and effective exploration depth can reach 3 km. The 2D inversion results are roughly consistent with drilling results, indicating that the high-power tensor CSAMT can be used to achieve nearly actual characteristics of underground electrical structures. Therefore, this method has great potential for application in deep geophysical exploration in plateaus and mining areas with complex terrain and strong interference, respectively. This study not only serves as important guidance on the prospecting in the Qinghai-Tibet Plateau but also can be used as positive references for deep mineral exploration in other areas.
HE Rizheng
This dataset includes the maximum normalized vegetation index (NDVI) data from 1982 to 2015, the maximum enhanced vegetation index (EVI) data from 2000 to 2020, and the land cover change (LUCC) data from 2001 to 2019 in the China-Mongolia-Russia Economic Corridor (CMREC). Among these, NDVI data was extracted from GIMMS satellite data with a resolution of 8 km; EVI and LUCC data were extracted from MODIS satellite data (MOD13A3 and MCD12C1) with a resolution of 1 km and 5 km, respectively. The dataset filters the outliers or missing values in the original data, which is of higher quality than the source data. Meanwhile, we adopted the maximum value composite (MVC) method to process NDVI and EVI data to obtain the annual maximum NDVI and EVI, which can better reflect the vegetation distribution and change in CMREC over the past several decades. The spatio-temporal changes of vegetation and land use extracted from satellite remote sensing data will provide scientifical guidance for the risk control and prevention of the ecological environment change in CMREC.
ZHANG Xueqin
The water resources simulation data of Southeast Asian countries and the Lancang Mekong River Basin (1980-2019) is the result of using the meteorological data output from the WRF model as the driving data and simulation through the ways model. The data includes evapotranspiration, surface runoff, underground runoff, total runoff, groundwater, infiltration and soil moisture data of Southeast Asia land area from 1980 to 2019. The temporal resolution is daily and the spatial resolution is 3km. The data is generally good, but due to the limitations of the model, there are certain errors in the simulation results of a few variables. It is not recommended to use the research with high requirements for data accuracy. The data can reflect the situation of water resources in Southeast Asia to a certain extent, and provide data support for relevant research.
LIU Junguo
Demingding is a less studied post collisional porphyry copper molybdenum deposit, which is located in the east of Gangdise porphyry copper belt. This paper provides LA-ICP-MS zircon U-Pb dating, whole rock geochemistry and zircon trace element data of biotite porphyry in Deming top. Zircon U-Pb dating shows that the weighted average 206 Pb / 238 u age of Miocene biotite porphyry is 20.36 ± 0.46ma (mswd = 2.6, n = 21). Miocene biotite porphyry has high SiO_ 2、K_ 2O and Al_ 2O_ 3, and shows characteristics similar to adakite. These rocks have high Sr / y ratio and fractionated REE mode with low hree abundance. Compared with HFSE, they are enriched in lile with (87 Sr / 86 SR) I value of 0.7059 ~ 0.7062, ε Nd (T) value is − 2.35 ~ − 1.67, and (- 206 Pb / 204 Pb) I value is 18.50 ~ 18.55. These characteristics are similar to other Miocene adakitic intrusive rocks in the Gangdise belt. We believe that biotite porphyry has the same petrogenesis as other Miocene ore bearing intrusive rocks in the eastern Gangdise belt. Its genesis comes from the mixing of subduction transformation, remelting of metamorphic lower crust of Tibet and hydrated mafic magma metasomatizing the mantle of Tibet. Zircon in biotite porphyry has only very small negative Eu anomaly (Eun / Eun * > 0.3), with large Ce ~ (4 +) / Ce ~ (3 +) ratio (average 113), 10000 ~ * (Eun / Eun *) / Y (3.94 ~ 8.14 > 1), CE / Nd (9-58, average 30), (CE / nd) / Y (0.008 ~ 0.127 > 0.003), dy / Yb (0.15-0.24, < 1); 0.3), indicating that biotite porphyry has relative hydration and oxidation. Therefore, biotite porphyry is considered to be a relatively enriched intrusion with certain exploration potential. Data source: entrusted the Institute of mineral resources, Chinese Academy of Geological Sciences and the State Key Laboratory of geological process and mineral resources, China University of Geosciences (Beijing). The data results are good.
ZHANG Zebin , WANG Liqiang
(1) The data content is the stress monitoring data of the high slope of zhala hydropower station, including the stress data of the automatic monitoring of the high slope of zhala hydropower station, which has certain guiding significance for the stability of the slope of zhala hydropower station and can provide data support for disaster prevention and reduction of zhala hydropower station; (2) The data comes from the automatic transmission of automatic monitoring equipment, and is automatically interpreted and processed by the software of monitoring and early warning platform to finally generate the data in Excel; (3) The data transmission is stable and the quality is high, which can provide a basis for the slope stability of zhala hydropower station; (4) The data can reflect the stress variation of the high slope of zhala hydropower station, and has a wide application prospect.
XU Kunzhen
A new species, Yuomys robustus of the ctenodactyloid rodent Yuomys, is described in the paper. It is from the Western margin of the Ordos Basin District in eastern Ningxia Hui Autonomous Region, China. Yuomys robustus is characterized by a combination of features: large size, high tooth crown, having a postparacrista on M2 and lacking hypocone on P4. We also emended the diagnosis of type species of Yuomys, Y. cavioides. It is characterized by the absence of hypocone on P4, having a distinct ridge connecting the metaconule to the protocone on M1–M3, a postparacrista on M1, a mesostyle on M2, and a small ridge or spur on the mesial side of the protoloph on P4 and M1; the hypoconid smaller than the protoconid and is elongated, the paraconid absent and the mesostylid faintly visible on p4, but well developed on m1–m3; the talonid basin, sinusid, and posteroflexid are large and open on lower cheek teeth. The occurrence of Lophiomeryx angarae in the same stratigraphic layer as Y. robustus indicates that the horizon is possibly late Eocene in age, not early Oligocene as suggested by previous workers. Body mass estimations of Y. cavioides, Y. eleganes, and Y. robustus show that their weights are roughly in the range of 485–880 g, which is in between those of extant Myospalax and Ratufa. From the middle Eocene to the late Eocene, Yuomys exhibited a trend of gradually enlarging the cheek teeth, and increasing the tooth crown height and body mass.
LI Qiang
To fully implement the measures for the administration of the scientific data for the "government budget funding for formation of the scientific data shall, in accordance with the open as normal, not open for exception principle, by the competent department to organize the formulation of scientific data resources directory, the directory should be timely access to the national data sharing and data exchange platform, open to society and relevant departments to share, In the spirit of unimpeded military-civilian sharing channels for scientific data, and in accordance with the relevant requirements of relevant exchange standards and specifications, this code is now established for the second Comprehensive scientific investigation and research project on the Qinghai-Tibet Plateau. The main drafting unit of this code: Institute of Geographic Sciences and Natural Resources Research, CAS. Main draftsman of this specification: project group 9 of the second Comprehensive Scientific investigation and research Mission of qinghai-Tibet Plateau.
YANG Yaping
The data set is the original repeated GPS observation data along Paizhen - Motuo active deformation Himalayan orogenic belt in Southeast Tibetan Plateau. The data are measured in 2021, including the data of 18 stations, and the data quality is good. Through the observation data of these observation points, we can reveal the horizontal and vertical distribution characteristics of the northward converging strain of the Indian continent in the key parts of the Himalayan orogenic belt. And we can understand the current uplift state of the Himalayan orogenic belt and its correlation with horizontal movement, and combine with the active faults. Based on the theory of motion dislocation, the quantitative distribution of strain between earthquakes could be studied, as well as the strain accumulation characteristics, fault locking range and fault locking level between earthquakes, which provide important constraints for evaluating the seismic risk of active faults in the study area.
HE Jiankun
The data were collected from the debris flow model test system located in the plant area of Aosite Slope Protection Engineering Co., Ltd. in Qingbaijiang District, Chengdu. The system is a multifunctional large-scale test device designed and built independently, which can be used to simulate the surface dynamic mechanism and protection of geological disasters. Compared with the famous large-scale geological disaster dynamic process model test system built by the U.S. Geological Survey, the system can change the slope arbitrarily, and can observe the transformation of debris flow or debris flow flow state and structure from the side. Based on the test system, the instruments used in the pre experiment mainly include: data acquisition instrument, laser displacement sensor, impact force sensor, acceleration sensor, microseismic sensor, high-speed camera, camera, three-dimensional laser scanner and UAV.
ZHANG Shilin
Carry out geophysical logging for scientific research deep drilling jmkz-1 in Jiama mining area, find out the physical properties of the main geological bodies in the mining area, divide the lithologic interface according to the logging curve, determine the depth and thickness of the ore (chemical) body, and interpret the distribution characteristics of the strata, rock bodies, ore (chemical) bodies and structures closely related to mineralization in depth in combination with the ground geophysical exploration data. The variation law of formation temperature in the whole hole section is statistically analyzed by using well temperature logging data.Geophysical logging is carried out below 1080m without casing in scientific research deep drilling jmkz-1. The logging parameters include three lateral resistivity, polarizability, magnetic susceptibility, natural gamma, natural potential and well temperature. Through the combination of various parameters, the physical properties of the main geological bodies in the mining area are basically found out, the depth and thickness of the ore (chemical) body are determined, and the variation law of formation temperature in the whole hole section is statistically analyzed by using well temperature logging data. From the whole hole section, the lithology changes from bottom to top from granite porphyry skarn silicified breccia, and the ore bearing property changes from local weak mineralization of granite porphyry in the lower part to giant thick skarn type ore body to local breccia type ore body in the upper part. This change characteristic reflects that in the process of emplacement of ore bearing porphyry from deep to upward, porphyry ore body or mineralized body is formed in deep porphyry mineralization, and skarn type extremely thick rich ore body is formed on the contact surface with hornrock. In the process of emplacement, squeezing rock stratum leads to fracture development in hornrock, and ore bearing hydrothermal fluid moves along the fracture to form local hornrock type ore body in hornrock.
HE Rizheng
Log and image are unique and important primary data of field research, and also an important part of scientific data. In order to further standardize the collection, collation, warehousing and exchange of expedition logs and image data of the second Comprehensive scientific investigation and research project on the Qinghai-Tibet Plateau, and ensure the operability, organization and standardization of the warehousing of expedition logs and image data, this technical specification is formulated. This specification provides procedures and methods for the collection and collation of investigation logs and image data, including work preparation, field investigation, data collation and other requirements, in order to better serve the storage of investigation data. This specification applies to the collation and storage of log and image data of field investigations organized by the second Comprehensive scientific investigation and research project on the Qinghai-Tibet Plateau, and other relevant data formed by field investigations can also be carried out by reference to this technical specification.
YANG Yaping
The Regional Estimates of Vegetation Abundance from Large Sites (REVEALS) model was developed by Sugita (2007) to correct for bias due to inter-taxonomic differences in pollen productivity and dispersion and estimate plant cover at a regional spatial scale based on pollen records. We provide the dataset of pollen-based REVEALS reconstruction for temperate and northern sub-tropical China over the Holocene. The REVEALS reconstruction was achieved using 94 selected pollen records from lakes and bogs at a 1˚x1˚ spatial scale and a temporal resolution of 500 years between 11.7 and 0.7 ka BP, and three recent time windows (0.7˗0.35 ka BP, 0.35˗0.1 ka BP, and 0.1 ka BP˗present). The dataset of pollen-based REVEALS reconstruction of Holocene plant cover for the study region includes the REVEALS proportions of plant cover (and related SEs) for 75 1˚x 1˚grid cells and 25 time windows for each grid cell for 27 taxa, two alternatives of aggregation of plant taxa to PFTs: ten PFTs and six PFTs, and three land-cover types. The metadata files providing details on the sites used in the REVEALS reconstruction for each grid cell and each time window. For instance, the original site names, modern vegetation zones, geographical coordinates (latitude and longitude in decimal degrees), elevation in meters above sea level, site types (bog or lake), basin sizes (radius and area), number of 14C radiocarbon dates or other types of dates, approximate temporal extent of the site. The dataset is suitable for palaeoclimate modeling, can be applied also in evaluating simulations of past vegetation from dynamic vegetation models and anthropogenic land cover change (ALCC) scenarios.
LI Furong
This data is the plant diversity and distribution data of chnac006 grid on the Qinghai Tibet Plateau, including the Chinese name, Latin name, latitude and longitude, altitude, collection number, number of molecular materials, number of specimens, administrative division, small place, collector, collection time and creator of plants in this grid. The data is obtained from e scientific research website（ http://ekk.kib.ac.cn/web/index/#/ ）And partially complete the identification. This data has covered the list and specific distribution information of more than 600 species of plants in more than 200 genera and 91 families in this flora. This data can be used not only to study the floristic nature of this region, but also to explore the horizontal and vertical gradient pattern of plants in this region.
DENG Tao
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