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 Qinghai-Tibet Plateau is the source of many major rivers in Asia, providing essential water for hundreds of millions of people, and is known as the "Water Tower of Asia". The main source of water recharge for the Asian Water Tower is precipitation from the Tibetan Plateau, of which the Tibetan Plateau vortex (TPV) is one of the important precipitation-producing systems on the Tibetan Plateau. Due to the complex topography of the Tibetan Plateau and the lack of observational data, there are still many gaps in the understanding of the climatic and structural characteristics of the TPVs and their formation and change mechanisms. This dataset uses multiple sets of reanalysis data and objective identification methods to obtain a long time series TPVs dataset, including the location, radius, intensity, life history, and movement path and other characteristics. The reanalysis datasets used in the dataset are: NCEP1 (NCEP/NCAR), NCEP2 (NCEP/DOE), ERA-Interim, ERA-40, ERA-5, CFSR, MERRA2, JRA55, NCEP FNL, CRA40, etc. NCEP1 and NCEP2 have lower resolution and the obtained highland low vortices are not applicable as climate feature analysis.
LIN Zhiqiang , LIN Zhiqiang, GUO Weidong GUO Weidong
Rainfall erosivity is one of the important basic data to quantify soil erosion in the Tibet Plateau. High precision rainfall erosivity data is the key to understand the current situation of soil and water loss in theTibet Plateau and formulate soil and water conservation measures. Meanwhile, it can provide a powerful reference for the prevention and control of geological disasters in the Tibet Plateau. Based on the 1-min dense precipitation observations and the grid precipitation product, a new annual rainfall erosivity dataset in Tibet Plateau from 1950 to 2020 is constructed through the steps of correction, reconstruction and validation. This dataset is the rainfall erosivity data set with the highest accuracy and the longest time series in the Tibet Plateau.
CHEN Yueli
The Human Development Index (HDI) was developed by the United Nations Development Programme (UNDP) in the Human Development Report 1990 to measure the level of economic and social development of the United Nations member countries. The HDI is a composite indicator based on three basic variables: life expectancy, educational attainment and quality of life, and is calculated according to a certain methodology. "The One Belt One Road (OBOR) human development resilience dataset is a comprehensive indicator of human development resilience in each country. "The human development resilience dataset for countries along the Belt and Road is a comprehensive diagnosis based on sensitivity and adaptability analysis using year-by-year data of the Human Development Index for countries along the Belt and Road from 2000 to 2020. The Human Development Resilience Indicator (HDRI) data was prepared based on sensitivity and adaptation analysis. Please refer to the documentation for the methodology of preparing the dataset. "The Human Development Resilience Dataset for countries along the Belt and Road is an important reference for analysing and comparing the current state of human development resilience in each country.
XU Xinliang
The Central Asia West Asia economic corridor is dominated by deserts, mountains and plateaus, with an average altitude of about 1000m. The climate is extremely arid, the desert distribution area is large, the ecology is fragile, the dry and hot season lasts for a long time, up to 7 months, and the annual average rainfall is only 150mm at most. There are great differences in natural environment and complex geological conditions in the area. Under the compound driving action of regional differentiated structure, earthquake, meteorology, hydrology and ecology, debris flow and landslide are widely distributed in the corridor. Based on remote sensing images, the landslide and debris flow disasters in China Central Asia West Asia economic corridor are interpreted. Statistics show that 303 landslides and 2159 debris flow disasters are developed in China Central Asia West Asia economic corridor. Debris flows mainly include freeze-thaw debris flow, ice water debris flow and rainstorm debris flow.
ZOU Qiang
To understand the potential impact of projected climate changes on the vulnerable agriculture in Central Asia (CA) in the future, six agroclimatic indicators are calculated based on the 9km-resolution dynamical downscaled results of three different global climate models and a high-resolution projection dataset of agroclimatic indicators over CA is produced. These indicators are growing season length (GSL, days), biologically effective degree days (BEDD, ℃), frost days (FD, days), summer days (SU, days), warm spell duration index (WSDI, days), and tropical nights (TR, days). The periods are 1986-2005 and 2031-2050. The spatial resolution is 0.1°. As all the indicators except WSDI are defined with absolute temperature thresholds and particularly sensitive to the systematics biases in the model data, the quantile mapping (QM) method is applied to correct the simulated temperature. Results show the QM method largely reduces the biases in all the indicators. GSL, SU, WSDI, and TR will significantly increase over CA and FD will decrease. However, changes in BEDD are spatially heterogeneous, with the increases in northern CA and the mountainous areas and decreases in the southern and middle part of the plain areas. This dataset can be applied for assessing the future risks in the local agriculture for climate changes and will be beneficial to adaption and mitigation actions for food security in this region.
QIU Yuan QIU Yuan
This data is the inclinometer monitoring data of Baige landslide in Jinshajiang River, which mainly considers the deep deformation monitoring of the landslide. Combined with the site geological conditions, three monitoring profiles are arranged, with a total of 7 boreholes, more than 600 meters in total, and the boreholes are vertically distributed. The field manual monitoring method is adopted, and the data is processed with Excel software. The data show that shear zones have been formed in some boreholes. Combined with the field macro deformation and geological drill hole histogram analysis, the position of the formed shear zone is consistent with the field geological situation, which proves the reliability of the data. At the same time, the displacement of shear band is further analyzed, and the deformation does not converge. Through the analysis of the data, the depth range, monitoring and early warning of the crack area of Baige landslide are determined, and technical support is provided for landslide treatment.
CHEN Fei
This data is mainly for on-site monitoring and collection of micro-seismic wave signals generated when rock fracture or dislocation occurs in the slope body. For data collection, four three-component geophones (G1-G4) arranged on site transmit the picked signals to the collector, which converts the received analog signals into digital signals, and transmits the collected microseismic data to the control system through 4G wireless network. Waveform processing software Trace and Vantage were used to interpret and analyze the collected microseismic wave signals, so as to determine the location, magnitude, quantity and energy release of microseismic events. The spatial distribution and spatial-temporal evolution characteristics of microseismic events can be obtained through sorting and analysis of the data. Combined with the change law of historical parameters, the macroscopic fracture state of rock mass in different periods can be revealed, which provides a basis for the stability evaluation of The Baige slope.
CHEN Fei
Sand cushion is often used to be arranged on the top of shed tunnel structure to protect highway and railway from rockfall. In order to improve the impact energy, thick cushion is often used, which increases the construction cost. In this study, geogrid is used as reinforcement material to improve the impact resistance of sand cushion without increasing the thickness of sand layer. In order to study the effects of different grid reinforcement positions and layers on the impact performance, indoor impact tests were carried out. The test results show that the geogrid with reinforcement in the appropriate position can reduce the impact force, disperse the impact stress in the sand layer, reduce the vibration of the plate and increase the impact time. In this test, the position where the sand cushion is one-third away from the bottom is the optimal reinforcement position. At the same time, the grid should be a certain distance from the top surface of the sand layer to ensure a certain energy absorption capacity. When the thickness of sand cushion is thin, the multi-layer geogrid reinforced sand cushion should be used carefully. The data content includes: rockfall impact force, impact stress at the bottom of sand cushion, and deformation of bottom plate of sand cushion. The impact force is obtained by multiplying the acceleration and mass collected by the acceleration sensor; The impact stress is obtained by the stress sensor; The deformation of the plate is obtained by the acceleration sensor at the bottom of the plate.
JIANG Qinghui
Velocity is an important parameter to reflect the dynamics of slope. A velocity sensors are arranged on the top of slope of the Xiaguiwa bedding rock model slope. A velocity sensor is arranged on the shaking table to record the real velocity state of the input seismic wave. The collected data are filteringed, noise reduction, screened and other processing steps to obtain the velocity data set of the bedding rock model slope; The peak values of the velocity data of the model slope under the same load condition can reflect the dynamic response law of the slope under such seismic action. The ratio of the peak velocity on the slope to the peak velocity on the table reflects the enhancement level of the velocity response of the slope top under seismic action.
GUO Mingzhu
Displacement is an important parameter to reflect the dynamics of slopes. Six acceleration sensors on the interface of weak and hard lithology and three acceleration sensors on the slope surface of the Xiaguiwa bedding rock model slope were selected as the study samples. The acceleration data of the study samples were processed by filtering, noise reduction and screening, and then quadratic integration and zero line callback were performed to calculate the peak displacement under the amplitude of 0.3g~0.8g Maoxian wave, and the displacement data set of the shaking table model test was obtained for the bedding rock model slope; the two sets of data on the weak and hard lithology interface can reflect the influence of the weak rock layer on the displacement of the bedding rock slope under the seismic action; The two sets of data on the interface of weak and hard lithology can reflect the influence of weak rock layer on the displacement of the bedding rock slope under the seismic effect; The set of data on the slope table can reflect the displacement relationship of various positions on the slope table;
GUO Mingzhu
Displacement is an important parameter reflecting the characteristics of slope dynamics. The displacement data set is obtained by arranging one displacement measurement point at each of the toe, middle, shoulder and top of the counter-bedding model slope, collecting displacement data every one minute, correcting the collected data and deleting the abnormal data at the end of each point, and obtaining the displacement data set of the counter-bending rock slope shaking table model test; The displacement data set of the model slope under the same working condition can reflect the relationship between the displacement of the toe, middle, shoulder and top of the slope under such seismic action, and the displacement data set of the model slope under different working conditions can reflect the damage mechanism of the counter-beddomg rock slope with the accumulation of seismic action.
GUO Mingzhu
Velocity is an important parameter to reflect the dynamics of slope. A velocity sensors are arranged on the top of slope of the Xuelongnang counter-bedding rock model slope. A velocity sensor is arranged on the shaking table to record the real velocity state of the input seismic wave. The collected data are filteringed, noise reduction, screened and other processing steps to obtain the velocity data set of the counter-bedding rock model slope; The peak values of the velocity data of the model slope under the same load condition can reflect the dynamic response law of the slope under such seismic action. The ratio of the peak velocity on the slope to the peak velocity on the table reflects the enhancement level of the velocity response of the slope top under seismic action.
GUO Mingzhu
This data is mainly the data collection of mechanical properties of anti slide pile structure, including bearing capacity, displacement, strain of reinforcement and steel strand, and monitoring of prestress, which is used to analyze various performance indexes of bending and shear resistance of the structure and optimize the structural design; This experiment is mainly completed by scaling the anti slide pile components and loading them with MTS machine for four point bending. The data are collected by static strain acquisition instrument based on force sensor, displacement gauge, strain gauge, optical fiber monitoring and anchor cable dynamometer. Due to the effect of end iron block on the dispersion of prestress transmission, The change of prestress in the whole process of loading has not been completely monitored, and the other data have been analyzed and processed to obtain the corresponding law. The corresponding laws can be obtained by sorting and analyzing the data, which provides some design basis for the application of this kind of prestressed steel strand anti slide pile.
JIANG Qinghui
(1) Data content: This data set is based on the Xuelongnang landslide in the Sanjiang basin of the Qinghai-Tibet Plateau, and reconstructs the counter-bedding slope before the slide; the counter-bedding slope before the slide is used as a reference for the shaking table model test, which is used to design the shaking table model test model and the sensor layout diagram for the counter-bedding rock slope, and a special joint is set in the model slope, and the deployed sensors are the acceleration sensors and the velocity sensors. (2) Data source and processing method: The data set is drawn by Guo Mingzhu of Beijing University of Technology using CAD software. (3) The data provide reference for the subsequent shaking table model test implementation.
GUO Mingzhu
Acceleration is an important parameter to reflect the dynamics of slope. Fifteen acceleration sensors are arranged on the slope surface, lithological interface and inside the slope of the Xuelongnang counter-bedding rock model slope. An acceleration sensor is arranged on the shaking table to record the real acceleration state of the input seismic wave. The collected data are filteringed, noise reduction, screened and other processing steps to obtain the acceleration data set of the counter-bedding rock model slope; The peak values of the acceleration data of the model slope under the same load condition can reflect the dynamic response law of the slope under such seismic action, and the ratio of the peak acceleration on the slope to the peak acceleration on the table can reflect whether the slope is enhanced or attenuated at each location under the seismic action.
GUO Mingzhu
Acceleration is an important parameter to reflect the dynamics of slope. Twenty-two acceleration sensors are arranged on the slope surface, lithological interface and inside the slope of the Xiaguiwa bedding rock model slope. An acceleration sensor is arranged on the shaking table to record the real acceleration state of the input seismic wave. The collected data are filteringed, noise reduction, screened and other processing steps to obtain the acceleration data set of the bedding rock model slope; The peak values of the acceleration data of the model slope under the same load condition can reflect the dynamic response law of the slope under such seismic action, and the ratio of the peak acceleration on the slope to the peak acceleration on the table can reflect whether the slope is enhanced or attenuated at each location under the seismic action.
GUO Mingzhu
A total of two types of seismic waves are used as input in the test, one type is sinel wave; the other type is natural wave, and the natural wave is adopted from Wenchuan Maoxian wave. The sine wave amplitude and frequency are unique, so it can be used to study the influence of ground motion parameters on the dynamic response of slopes. By comparing the dynamic response of slopes under the action of sine waves with different frequencies and amplitudes, the influence of the input seismic wave parameters on the dynamic response of rock slopes is investigated; the natural waves are selected from the bedrock seismic waves recorded at the Maoxian station. The seismic wave input is loaded in a step-by-step manner, firstly loading the sine wave with low amplitude, and then loading the Wenchuan Maoxian wave with 0.1g increase, and after each loading, white noise is carried out to analyze the natural characteristics of the slope. After each loading was completed, 10 minutes were spent to take pictures and observe the damage of the slope.
GUO Mingzhu
Two types of seismic waves are used as dynamic inputs, one is synthetic waves, including sine waves and synthetic waves with different transcendence probabilities; the other is natural waves, selecting Wenchuan Wolong waves and Maoxian waves. The sine wave amplitude and frequency are unique, so they can be used to study the influence of ground motion parameters on the dynamic response of slopes; the natural waves are selected from the soil layer waves recorded at Wolong station and bedrock seismic waves recorded at Maoxian station during the Wenchuan earthquake, aiming to investigate the influence of different types of seismic wave inputs on the dynamic response of rock slopes by comparing the dynamic response law of slopes under the action of two types of seismic waves. White noise was performed after each loading to analyze the natural characteristics of the slope. A 10-minute stay after each loading was used to take pictures and observe the damage of the slope.
GUO Mingzhu
(1) Data content: This data set is based on the Xiaguiwa landslide in the Sanjiang basin of the Qinghai-Tibet Plateau, reconstructing the bedding slope of the Xiaguiwa landslide; the bedding slope of the Xiaguiwa landslide is used as a reference for shaking table model tests, which is used to design the shaking table model test model and sensor layout diagram for the bedding rock slope, with a weak rock layer in the model slope, and the sensors deployed are acceleration sensors and velocity sensors, and the measured (2) Data source and processing method: The data set is drawn by Guo Mingzhu of Beijing University of Technology using CAD software. (3) The data provide reference for the subsequent shaking table model test implementation.
GUO Mingzhu
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