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An overview of the policies and models of integrated development for solar and wind power generation in China

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Research in Cold and Arid Regions 2023年第3期15卷 122-131页

作者： liwei yang XiaoQing Gao ZhenChao Li Key Laboratory of Land Surface Progress and Climate Change in Cold and Arid Regions Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China

Under the goal of “Carbon Emission Peak and Carbon Neutralization”, the integrated development between various industries and renewable energy(photovoltaic, wind power) is of great significance in China. This paper summarizes the relevant policies, integration schemes and typical cases of the integrated development between renewable energy and other industries. First, the development status of wind and solar generation in China is introduced. Second, we summarize the relevant policies issued by the National Development and Reform Commission, National Energy Administration and other departments to promote the integrated development in photovoltaic and wind power generation in China. Third, eight kinds of photovoltaic three-dimensional development models are described, including “photovoltaic + agriculture, industry, environmental protection, transportation, architecture, communication, hydrogen and ecology”. Fourth, eight kinds of wind power threedimensional development models are summarized, including “Offshore wind power + marine ranch, marine energy, marine tourism, marine oil and gas, hydrogen, communication, Energy Island” and “Onshore wind power+ courtyard”. In the future, the promotion and application of the above integrated development projects will be accelerated. This overview aims to provide reference for the design in photovoltaic and wind energy systems and help potential investors to make decisions.

关键词： Renewable energy Solar PV Wind power Policies Integrated development

Metal release/accumulation during the decomposition of Potamogeton crispus in a shallow macrophytic lake

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Journal of Environmental Sciences 2016年第4期28卷 71-78页

作者： Huanguang Deng Ju Zhang Shiyue Chen liwei yang Dongqi Wang Shiyong Yu School of Environment and Planning Liaocheng University School of Geographical Sciences East China Normal University Institute for Cultural Heritage Shandong University

Changes in metal concentrations in the litter of Potamogeton crispus were monitored during a consecutive 40-day in situ decomposition experiment using the litterbag *** accumulation index was calculated and used to indicate the changes in the metals in *** results showed that the concentrations of Al,Cd,Cr,Fe,Mn,and Pb in litter increased significantly during the decomposition,while Cu and Zn concentrations decreased *** positive correlations were found between the concentrations of Al,Cr,Fe,and Mn and between Cu and ***,Cu and Zn both negatively correlated with Al and *** remaining dry mass was negatively correlated with Al and Fe concentrations but positively correlated with Cu and Zn *** the accumulation index values of metals other than Al were less than one,indicating that the litter of *** acted as a source of metals to the surrounding water *** was the only metal that showed continuous net accumulation in *** net accumulation of Fe and Mn in litter during the last 10 days of the experiment may indicate the precipitation of Feand *** was estimated that 160 g/m^2（dry weight）*** was decomposed in40 *** was equivalent to releasing the following amounts of metals：0.01 mg Cd,0.03 mg Cr,0.71 mg Cu,0.55 mg Mn,0.02 mg Pb and 13.8 mg Zn into surrounding water,and accumulating 149 mg Al and 11 mg Fe,in a 1 m^2 area.

关键词： Litter decomposition Metal release/accumulation Metal stocks Accumulation index Potamogeton crispus Lake Dongping

Study on the atmospheric heat engine efficiency and heat source characteristics of the Qinghai-Tibet Plateau in summer

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Science China Earth Sciences 2024年第1期67卷 117-133页

作者： Yujie LI Xiaoqing GAO Yaoming MA Zeyong HU Zhenchao LI liwei yang Xiao JIN Xiyin ZHOU Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions of Chinese Academy of Sciences Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China Tianjin Key Laboratory for Oceanic Meteorology Tianjin Institute of Meteorological ScienceTianjin 300074China Institute of Tibetan Plateau Research Chinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China

There are many types of atmospheric heat engines in land-air *** accurate definition,calculation and interpretation of the efficiency of atmospheric heat engines are key to understanding energy transfer and transformation of landair *** atmosphere over the Qinghai-Tibet Plateau(QTP)in summer can be regarded as a positive heat *** study of the heat engine efficiency is helpful to better understand land-air interaction and thermal-dynamic processes on the *** also provides a new perspective to explain the impact of the QTP on the climate of China,East Asia and even the *** this paper,we used MOD08 and ERA5 reanalysis data to calculate the atmospheric heat engine efficiency,surface heat source and atmospheric heat source on the QTP in summer(May to September)from 2000 to *** average atmospheric heat engine efficiency on the QTP in summer from 2000 to 2020 varies between 1.2%and 1.5%,which is less than 1.6%;the heat engine efficiency in summer is higher than that in June,July and August;the Qaidam Basin is the region with the highest atmospheric heat engine efficiency,followed by the western *** mean surface heat source on the QTP in summer from 2000 to 2020 is 96.0 W m^(−2),the atmospheric heat source is 90.7 W m^(−2),and the release of precipitation condensation latent heat is the most important component of the atmospheric heat source on the QTP in *** is a strong and significant positive correlation between the atmospheric heat engine efficiency and the surface heat source on the QTP in *** precipitation condensation latent heat is the most important component of the atmospheric heat source in summer and can reflect the precipitation *** is a strong and significant negative correlation between the atmospheric heat engine efficiency and the atmospheric heat source on the QTP in summer.

关键词： Qinghai-Tibet Plateau Climate change Land-air system Atmospheric heat engine Heat source on the Qinghai-Tibet Plateau

Estimation of chlorophyll content in maize canopy using wavelet denoising and SVR method

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International Journal of Agricultural and Biological Engineering 2018年第6期11卷 132-137页

作者： Haojie Liu Minzan Li Junyi Zhang Dehua Gao Hong Sun liwei yang Key Laboratory of Modern Precision Agriculture System Integration Research Ministry of EducationChina Agricultural UniversityBeijing 100083China Key Laboratory of Agricultural information acquisition technology Ministry of AgricultureChina Agricultural UniversityBeijing 100083China

In order to estimate the chlorophyll content of maize plant non-destructively and rapidly,the research was conducted on maize at the heading stage using spectroscopy *** spectral reflectance of maize canopy was measured and processed following wavelet denoising and multivariate scatter correction(MSC)to reduce the noise ***,the signal to noise ratio(SNR)and curve smoothness(CS)were used to evaluate the denoising effect of different wavelet functions and decomposition *** a result,the Sym6 wavelet basis function and the 5th level decomposition were determined to denoise the original *** MSC method was used to eliminate the scattering effect after *** three spectral ranges were extracted by interval partial least squares(IPLS)including the 525-549 nm,675-749 nm and 850-874 ***,the chlorophyll content estimation model was developed by using support vector regression(SVR)*** calibration Rc2 of the SVR model was 0.831,the RMSEC was 1.3852 mg/L;the validation Rv2 was 0.809,the RMSEP was 0.8664 mg/*** results show that the SNR and CS indicators can be used to select the parameters for wavelet denoising and model can be used to estimate the chlorophyll content of maize canopy in the field.

关键词： maize canopy spectral reflectance wavelet denoising SVR model chlorophyll content

Spatial and temporal patterns of solar radiation in China from 1957 to 2016

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Research in Cold and Arid Regions 2022年第1期14卷 68-78页

作者： PeiDu Li XiaoQing Gao JunXia Jiang liwei yang YuJie Li Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhouGansu 730000China University of Chinese Academy of Sciences Beijing 100049China

Solar energy is clean and renewable energy that plays an important role in mitigating impacts of environmental problems and climate *** radiation received on the earth's surface determines the efficiency of power generation and the location and layout of photovoltaic *** this paper,the average daily solar radiation of 77 stations in China from 1957 to 2016 was analyzed in terms of spatial and temporal *** results indicate that Xinjiang,the Qinghai-Tibet Plateau,North,Central and East China show a decreasing trend with an average of 2.54×10^(−3)MJ/(m^(2)⋅10a),while Northwest and Northeast China are basically stabilized,and Southwest China shows a clear increasing trend with an average increase of 1.79×10^(−3)MJ/(m^(2)⋅10a).The average daily solar radiation in summer and winter in China from 1957 to 2016 was 18.74 MJ/m^(2)and 9.09 MJ/m^(2),*** for spring in Northwest,East and South China,and summer in northeast China,the average daily solar radiation in all other regions show a downward trend.A critical point for the change is 1983 in the average daily solar ***,large-scale(25−30 years)oscillation changes are more obvious,while small-scale(5−10 years)changes are stable and have a global *** average daily solar radiation shows an increasing-decreasing gradient from west to east,which can be divided into three areas west of 80°E,80°E−100°E and east of 100°*** average daily solar radiation was 2.07 MJ/m^(2)in the 1980s,and that in 1990s lower than that in the 1960s and the *** average daily solar radiation has rebounded in the 21st century,but overall it is still lower than the average daily solar radiation from 1957 to 2016(13.87 MJ/m^(2)).

关键词： average daily solar radiation temporal variability spatial distribution characteristics China

Variation characteristics and prediction of pollutant concentration during winter in Lanzhou New District, China

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Research in Cold and Arid Regions 2020年第5期12卷 317-328页

作者： DongYu Jia XiaoXia Li XiaoQing Gao liwei yang College of Geography and Environmental Engineering Lanzhou City UniversityLanzhouGansu 730070China Northwest Regional Climate Center/Key Laboratory of Arid Climatic Change and Reducing Disaster of Gansu Province/Key Open Laboratory of Arid Climatic Change and Disaster of China Meteorological Administration/Institute of Arid Meteorology LanzhouGansu 730020China Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions/Northwest Institute of Eco-Environment and Resources Chinese Academy of SciencesLanzhouGansu 730000China

PM2.5 and PM10 were the main air pollutants during winter in Lanzhou New District,*** this paper,WRF model output combined with hourly monitoring data of pollutant concentration was used to analyze characteristics of the concentration change and to study the relationship between meteorological elements and PM10/PM2.5 in Lanzhou New District in January,***,the concentration changes of PM2.5 and PM10 were predicted by wavelet analysis combined with BP neural *** results show that:(1)Due to the cold front process in winter,PM2.5 was negatively correlated with the water vapor mixing ***10 was positively correlated with air temperature and negatively correlated with air pressure.(2)There was an inversion layer in the atmosphere near the high value day of PM2.5 and PM10,the surface was controlled by low pressure,low wind speed,and the situation of low value day of PM2.5 was the *** the day of high value of PM10,the air temperature below 600 hPa was higher,and the wind speed near the surface was also higher.(3)Wavelet analysis combined with BP(Back Propagation)neural network had a good prediction effect on PM2.5,which could basically reflect the hourly change of PM2.5 ***,the simulation effect of PM10 was poor,and the input parameters of surrounding pollutants should be added to improve the prediction effect.

关键词： PM2.5 PM10 WRF Wavelet neural network Lanzhou New District

Analysis of Ground Motion Attenuation Characterization for Moderate Earthquakes in the Sichuan-Yunnan Region

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Earthquake Research in China 2015年第2期29卷 237-246页

作者： Yu Tian Cui Jianwen Li Xiaojun yang liwei Institute of Crustal Dynamics China Earthquake Administration Earthquake Administration of Yunnan Province Institute of Geophysics China Earthquake Administration

The ground motion attenuation models for PGA,PGV and response spectrum at rock sites and soils sites are derived separately from the digital strong motion records of moderate earthquakes in the Sichuan-Yunnan region after 2007. By comparison with Yu Yanxiangs attenuation model for rock sites in western China,reliability of the model is verified for moderate earthquake. According to the distribution of strong motion data against magnitude and epicentral distance,the applicability and reliability of the results in this paper are discussed.

关键词： Sichuan-Yunnan region Ground motion Attenuation model

Analysis on the Structure of Influencing Factors of Sustainable Supply Chain Implementation of Water Diversion Project

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Journal of Geoscience and Environment Protection 2021年第8期9卷 140-150页

作者： Meng Liu[] liwei yang[] Tongsheng Liu School of Information and Management Science Henan Agricultural University Zhengzhou China

The systematic analysis of the hierarchical relationship among the factors affecting the sustainable supply chain implementation of water diversion projects has theoretical value and practical significance for the sustainable development of large-scale water diversion projects. Through the investigation of relevant literature, books, web pages, materials, and discussions with relevant experts and scholars, a total of 23 factors influencing the sustainable supply chain implementation of water diversion projects were identified. Then using ISM (Interpretative Structural Modeling Method) to analyze the causality of each factor, a multi-level hierarchical structure model was obtained. The results showed that: 1) The surface-level influencing factors of the sustainable supply chain implementation of the water diversion project mainly included 8 factors such as water-saving awareness and water-saving intensity in the diversion area, water quality, water pollution and other disasters, effective incentive mechanisms, etc., and surface-level influencing factors were directly related to the sustainable supply chain implementation of water diversion projects. 2) The indirect influencing factors of the sustainable supply chain of water diversion projects included 12 factors such as the water quality and quantity guarantee rate of the supply chain, the government’s enforcement of laws and regulations, water distribution, ecological compensation, and compensation mechanisms for residents in the water source area. Indirect influencing factor scan acts directly on the direct influencing factors, and intervening in the factors that can be controlled by humans is one of the important ways to improve the sustainable operation of water diversion projects. 3) The fundamental influencing factors for the sustainable supply chain implementation of water diversion projects included three factors: Rese

关键词： Water Diversion Project Sustainable Supply Chain Interpretative Structural Modelling Method Hierarchical Structure Model

理念、机制、能力:联合国三方合作与中国的参与

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社会主义研究 2022年第3期 164-172页

作者：杨理伟复旦大学国际关系与公共事务学院

三方合作是与传统南北合作和南南合作模式互补的国际发展合作新模式。由于融合了南北国家、国际组织发展治理的比较优势,具有可充分调动多方资源、形式灵活的特点,拓展了当前国际发展合作的新空间。联合国将三方合作视作推动南南合作的... 详细信息

三方合作是与传统南北合作和南南合作模式互补的国际发展合作新模式。由于融合了南北国家、国际组织发展治理的比较优势,具有可充分调动多方资源、形式灵活的特点,拓展了当前国际发展合作的新空间。联合国将三方合作视作推动南南合作的核心模式,从《布宜诺斯艾利斯行动方案》到2030可持续发展议程,联合国体系推进的“三方合作”国际发展合作模式的理念、机制与能力经历了持续的转型与提升。在理念上,联合国基于演进的国际发展合作格局变化,不断升级国际发展的概念,使其更加多元、包容、可持续;在机制上,联合国利用自身的机制优势,通过完善原则、规范、规则汇集而成的国际机制组成的发展系统以及支持全球多边发展机制的建设,推动全球发展议程的落实;在能力上,联合国通过分享知识和经验,构建伙伴方关系培育发展中国家的发展能力。与此同时,联合国推进的三方合作模式将成为新时期体现中国大国担当和新型援助者的重要载体,是中国参与全球发展治理的重要路径。

关键词：三方合作国际发展合作全球发展伙伴关系联合国