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Seasonal differences in climatic controls of vegetation growth in the Beijing–Tianjin Sand Source Region of China

Journal of Arid Land 2018年第6期10卷 850-863页

作者： SHAN Lishan yu Xiang SUN lingxiao HE Bin WANG Haiyan XIE Tingting College of Forestry Gansu Agricultural UniversityLanzhou 730070China Chinese Academy of Forestry Beijing 100091China University of Chinese Academy of Sciences Beijing 100049China College & Global Change and Earth System Science Beijing Normal UniversityBeijing 100875China

Launched in 2002, the Beiing–Tianjin Sand Source Control Project (BTSSCP) is an ecological restoration project intended to prevent desertification in China. Evidence from multiple sources has confirmed increases in vegetation growth in the BTSSCP region since the initiation of this project. Precipitation and essential climate variable-soil moisture (ECV-SM) conditions are typically considered to be the main drivers of vegetation growth in this region. Although many studies have investigated the inter-annual variations of vegetation growth, few concerns have been focused on the annual and seasonal variations of vegetation growth and their climatic drivers, which are crucial for understanding the relationships among the climate, vegetation, and human activities at the regional scale. Based on the normalized difference vegetation index (NDVI) derived from MODIS and the corresponding climatic data, we explored the responses of vegetation growth to climatic factors at annual and seasonal scales in the BTSSCP region during the period 2000–2014. Over the study region as a whole, NDVI generally increased from 2000 to 2014, at a rate of 0.002/a. Vegetation growth is stimulated mainly by the elevated temperature in spring, whereas precipitation is the leading driver of summer greening. In autumn, positive effects of both temperature and precipitation on vegetation growth were observed. The warming in spring promotes vegetation growth but reduces ECV-SM. Summer greening has a strong cooling effect on land surface temperature. These results indicate that the ecological and environmental consequences of ecological restoration projects should be comprehensively evaluated.

关键词： vegetation growth climatic drivers seasonal variation ecological engineering interaction Beiing–Tianjin Sand Source Controlling Project(BTSSCP) NDVI

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Particle size distributions, PM2.5 concentrations and water- soluble inorganic ions in different public indoor environments： a case study in Jinan, China

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Frontiers of Environmental Science & Engineering 2013年第1期7卷 55-65页

作者： Can DONG lingxiao YANG Chao YAN Qi yuAN Yangchun yu Wenxing WANG Environment Research Institute Shandong University Jinan 250100 China School of Environmental Science and Engineering Shandong University Jinan 250100 China Chinese Research Academy of Environmental Sciences Beijing 100012 China

In this study, we collected particles with aerodynamic diameter≤2.5 μm (PM ) from three different public indoor places (a supermarket, a commercial office, and a university dining hall) in Jinan, a medium-sized city located in northern China. Water-soluble inorganic ions of PM and particle size distributions were also measured. Both indoor and outdoor PM levels (102.3–143.8 μg·m and 160.2–301.3 μg·m , respectively) were substantially higher than the value recommended by the World Health Organization (25 μg·m ), and outdoor sources were found to be the major contributors to indoor pollutants. Diurnal particle number size distributions were different, while the maximum volume concentrations all appeared to be approximately 300 nm in the three indoor locations. Concentrations of indoor and outdoor PM were shown to exhibit the same variation trends for the supermarket and dining hall. For the office, PM concentrations during nighttime were observed to decrease sharply. Among others, , and were found to be the dominant water-soluble ions of both indoor and outdoor particles. Concentrations of in the supermarket and office during the daytime were observed to decrease sharply, which might be attributed to the fact that the indoor temperature was much higher than the outdoor temperature. In addition, domestic activities such as cleaning, water usage, cooking, and smoking also played roles in degraded indoor air quality. However, the results obtained here might be negatively impacted by the small number of samples and short sampling durations.

关键词： indoor air quality indoor/outdoor ratios size distributions particles with aerodynamic diameter≤2.5 μm (PM2.5) water-soluble ions

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北京市大兴区杨树生长表现分析研究

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林业调查规划 2020年第4期45卷 136-143页

作者：贾素苹贾建学张猛于凌霄李文芳王艳华北京市大兴区林业工作站北京102600

利用两期"一类"清查数据和2个试验地块实测数据,对中林46杨等8个品种的杨树生长差异进行分析。"一类"清查结果显示:混交林中沙兰杨、毛白杨调查期间(5 a)平均胸径生长量是小美旱杨的2.2~2.6倍,中林46杨、毛白杨纯林调查期间(5 a)平均胸... 详细信息

利用两期"一类"清查数据和2个试验地块实测数据,对中林46杨等8个品种的杨树生长差异进行分析。"一类"清查结果显示:混交林中沙兰杨、毛白杨调查期间(5 a)平均胸径生长量是小美旱杨的2.2~2.6倍,中林46杨、毛白杨纯林调查期间(5 a)平均胸径生长量是小美旱杨和小叶杨的4.4~8.4倍;试验林研究结果显示:中林46杨各生长指标显著高于沙兰杨和Ⅰ-214杨,沙兰杨显著高于加杨,加杨显著高于北京杨和小美旱杨,18 a生沙兰杨平均单株材积是加杨、小美旱杨、北京杨的3.5~7.3倍,6 a生中林46杨平均单株材积是沙兰杨、I-214杨的1.8~1.9倍。由此可知:中林46杨生长表现优,建议推广应用;沙兰杨、Ⅰ-214杨生长表现较好,可适度推广应用;毛白杨生长稳定,也可推广应用;加杨、小美旱杨、北京杨、小叶杨生长表现差,应予以更新,今后在本地区不再应用。提出要不断引进新品种,提高丰产栽培技术水平,进行试验示范,推广成功品种等建议。

关键词：杨树生长表现差异分析北京市大兴区

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Model based decision support system for land use changes and socio-economic assessments

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Journal of Arid Land 2018年第2期10卷 169-182页

作者： yu Yang CHEN Xi Philipp HUTTNER Marie HINNENTHAL Andreas BRIEDEN SUN lingxiao Markus DISSE Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Chair of Hydrology and River Basin Management Technical University of Munich Chair of Statistics and Risk Management Universitaet der Bundeswehr Muenchen

Hydrological models are often linked with other models in cognate sciences to understand the interactions among climate, earth, water, ecosystem, and human society. This paper presents the development and implementation of a decision support system（DSS） that links the outputs of hydrological models with real-time decision making on social-economic assessments and land use management. Discharge and glacier geometry changes were simulated with hydrological model, water availability in semiarid environments. Irrigation and ecological water were simulated by a new commercial software MIKE HYDRO. Groundwater was simulated by MODFLOW. All the outputs of theses hydrological models were taken as inputs into the DSS in three types of links： regression equations, stationary data inputs, or dynamic data inputs as the models running parallel in the simulation periods. The DSS integrates the hydrological data, geographic data, social and economic statistical data, and establishes the relationships with equations, conditional statements and fuzzy logics. The programming is realized in C＋＋. The DSS has four remarkable features：（1） editable land use maps to assist decision-making;（2） conjunctive use of surface and groundwater resources;（3） interactions among water, earth, ecosystem, and humans; and（4） links with hydrological models. The overall goal of the DSS is to combine the outputs of scientific models, knowledge of experts, and perspectives of stakeholders, into a computer-based system, which allows sustainability impact assessment within regional planning; and to understand ecosystem services and integrate them into land and water management.

关键词： decision support system hydrological modeling ecosystem services land management socio-economic indicator Tarim River Basin

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Temporal and spatial variations of net primary productivity and its response to groundwater of a typical oasis in the Tarim Basin, China

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Journal of Arid Land 2021年第11期13卷 1142-1154页

作者： SUN lingxiao yu Yang GAO yuting ZHANG Haiyan yu Xiang HE Jing WANG Dagang Ireneusz MALIK Malgorzata WISTUBA yu Ruide State Key Laboratory of Desert and Oasis Ecology Xinjiang Institute of Ecology and GeographyChinese Academy of SciencesUrumqi 830011China University of Chinese Academy of Sciences Beijing 100049China Cele National Station of Observation and Research for Desert-Grassland Ecosystems Cele 848300China University of Silesia in Katowice Institute of Earth SciencesPolish-Chinese Centre for Environmental ResearchBankowa 1240-007 KatowicePoland School of Environment and Material Engineering Yantai UniversityYantai 264005China

Net primary productivity (NPP) of the vegetation in an oasis can reflect the productivity capacity of a plant community under natural environmental conditions. Owing to the extreme arid climate conditions and scarce precipitation in the arid oasis regions, groundwater plays a key role in restricting the development of the vegetation. The Qira Oasis is located on the southern margin of the Taklimakan Desert (Tarim Basin, China) that is one of the most vulnerable regions regarding vegetation growth and water scarcity in the world. Based on remote sensing images of the Qira Oasis and daily meteorological data measured by the ground stations during the period 2006-2019, this study analyzed the temporal and spatial patterns of NPP in the oasis as well as its relation with the variation of groundwater depth using a modified Carnegie Ames Stanford Approach (CASA) model. At the spatial scale, NPP of the vegetation decreased from the interior of the Qira Oasis to the margin;at the temporal scale, NPP of the vegetation in the oasis fluctuated significantly (ranging from 29.80 to 50.07 g C/(m2•month)) but generally showed an increasing trend, with the average increase rate of 0.07 g C/(m2•month). The regions with decreasing NPP occupied 64% of the total area of the oasis. During the study period, NPP of both farmland and grassland showed an increasing trend, while that of forest showed a decreasing trend. The depth of groundwater was deep in the south of the oasis and shallow in the north, showing a gradual increasing trend from south to north. Groundwater, as one of the key factors in the surface change and evolution of the arid oasis, determines the succession direction of the vegetation in the Qira Oasis. With the increase of groundwater depth, grassland coverage and vegetation NPP decreased. During the period 2008-2015, with the recovery of groundwater level, NPP values of all types of vegetation with different coverages increased. This study will provide a scientific basi

关键词： net primary productivity Carnegie Ames Stanford Approach groundwater depth land use NDVI Qira Oasis

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平原生态林养护若干问题的思考

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防护林科技 2020年第4期33卷 74-76,79页

作者：张慧敏徐亮李维根焦健于凌霄吴丽娟北京市大兴区林业工作站北京102600 中国科学院科技战略咨询研究院北京100190

为了改善首都环境、促进绿色发展,北京市启动了百万亩造林工程建设。截至目前,大兴区现有平原生态林2.17万hm^2;文章通过平原生态林养护问题的探讨,提出了四点建议:一是加强管控,提升绿色空间规模总量与生态质量;二是突出重点,精细化养... 详细信息

为了改善首都环境、促进绿色发展,北京市启动了百万亩造林工程建设。截至目前,大兴区现有平原生态林2.17万hm^2;文章通过平原生态林养护问题的探讨,提出了四点建议:一是加强管控,提升绿色空间规模总量与生态质量;二是突出重点,精细化养护管理;三是保障安全,完善平原生态林资源治理体系建设;四是绿色惠民,深化集体林权制度改革。

关键词：生态林养护绿色生态空间精细化养护资源安全

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草铵膦副产物氯化铵中草铵膦含量测定

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世界农药 2024年第11期46卷 53-57页

作者：李凯王真王小坤周国强于凌霄史文华山东亿盛实业股份有限公司山东济宁272211

建立了分光光度分析方法测定草铵膦副产物氯化铵中微量草铵膦含量。利用氨基酸的α-NH_(2)和茚三酮溶液在一定条件下可以生成蓝紫色物质的反应原理,通过对草铵膦副产氯化铵进行处理去除其中铵根离子,草铵膦的α-NH_(2)与茚三酮显色反应... 详细信息

建立了分光光度分析方法测定草铵膦副产物氯化铵中微量草铵膦含量。利用氨基酸的α-NH_(2)和茚三酮溶液在一定条件下可以生成蓝紫色物质的反应原理,通过对草铵膦副产氯化铵进行处理去除其中铵根离子,草铵膦的α-NH_(2)与茚三酮显色反应检测草铵膦含量。结果表明,该方法的线性关系良好,相关系数为0.9991,回收率范围95.48%~101.29%,标准偏差0.16%,变异系数3.56%。所建立方法能够用于草铵膦副产物氯化铵中的微量草铵膦检测分析。

关键词：氯化铵茚三酮草铵膦分光光度法

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Climate change, water resources and sustainable development in the arid and semi-arid lands of Central Asia in the past 30 years

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Journal of Arid Land 2019年第1期11卷 1-14页

作者： yu Yang PI yuanyue yu Xiang TA Zhijie SUN lingxiao Markus DISSE ZENG Fanjiang LI Yaoming CHEN Xi yu Ruide Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Research Center for Ecology and Environment of Central Asia Chinese Academy of Sciences Cele National Station of Observation and Research for Desert-Grassland Ecosystem University of Chinese Academy of Sciences Chinese Academy of Forestry State Key Laboratory of Desert and Oasis Ecology Chinese Academy of Sciences Chair of Hydrology and River Basin Management Technical University of Munich School of Environment and Material Science Yantai University

The countries of Central Asia are collectively known as the five "-stans": Uzbekistan, Kyrgyzstan, Turkmenistan, Tajikistan and Kazakhstan. In recent times, the Central Asian region has been affected by the shrinkage of the Aral Sea, widespread desertification, soil salinization, biodiversity loss, frequent sand storms, and many other ecological disasters. This paper is a review article based upon the collection, identification and collation of previous studies of environmental changes and regional developments in Central Asia in the past 30 years. Most recent studies have reached a consensus that the temperature rise in Central Asia is occurring faster than the global average. This warming trend will not only result in a higher evaporation in the basin oases, but also to a significant retreat of glaciers in the mountainous areas. Water is the key to sustainable development in the arid and semi-arid regions in Central Asia. The uneven distribution, over consumption, and pollution of water resources in Central Asia have caused severe water supply problems, which have been affecting regional harmony and development for the past 30 years. The widespread and significant land use changes in the 1990 s could be used to improve our understanding of natural variability and human interaction in the region. There has been a positive trend of trans-border cooperation among the Central Asian countries in recent years. International attention has grown and research projects have been initiated to provide water and ecosystem protection in Central Asia. However, the agreements that have been reached might not be able to deliver practical action in time to prevent severe ecological disasters. Water management should be based on hydrographic borders and ministries should be able to make timely decisions without political intervention. Fully integrated management of water resources, land use and industrial development is essential in Central Asia. The ecological crisis should provide

关键词： Central Asia climate change water resources arid and semi-arid lands land use changes sustainable development socio-economic development

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A cross-cultural study of sustainable nutrition and its environmental impact in Asia and Europe:A comparison of China and Germany

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Regional Sustainability 2024年第2期5卷 1-12页

作者： Birgit Anika RUMPOLD SUN lingxiao Nina LANGEN yu Ruide Department Education for Sustainable Nutrition and Food Science Technical University BerlinBerlin14052Germany State Key Laboratory of Desert and Oasis Ecology Xinjiang Institute of Ecology and GeographyChinese Academy of SciencesUrumqi830011China

Global challenges such as climate change,biodiversity loss,and health crises necessitate a shift towards sustainable *** sustainability into food-based dietary guidelines(FBDGs)is essential for this shift,and cultural considerations also play a vital role,as food culture significantly influences dietary *** that Asia and Europe exhibit distinct food cultures,tailored approaches are ***,countries face diverse nutritional challenges,ranging from malnutrition to diet-related diseases,and regional variation in environmental impact necessitates context-specific *** sustainable nutrition depends on understanding cultural influences and regional *** paper compares China’s and Germany’s dietary guidelines and dietary patterns and their impact on *** shows that Chinese and German FBDGs only slightly differ,despite the different eating cultures and habits of each *** the recommended amounts for eggs and fish are considerably higher in China than in ***,in both China and Germany,actual dietary patterns deviate from the dietary *** China,concomitant with economic growth and urbanization,a dietary shift towards increased consumption of animal products and decreased consumption of vegetables and cereals has been observed in the last decades,which has led to a decline in nutritional deficiencies but an increase in obesity and *** and overweight are also on the rise in Germany.A dietary shift could therefore also be beneficial for public *** following the respective national guidelines would benefit the environment,alternative diets such as a plant-based diet offer even lower environmental *** guidelines to prioritize sustainability in addition to health aspects while considering regional contexts and cultural preferences is recommended to foster sustainable eating habits *** approach is pivotal for promoting die

关键词： Food-based dietary guidelines (FBDGs) Dietary shift Planetary health diet Dietary patterns Sustainable nutrition Greenhouse gas (GHG)emission

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Spatiotemporal changes in water,land use,and ecosystem services in Central Asia considering climate changes and human activities

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Journal of Arid Land 2021年第9期13卷 881-890页

作者： yu Yang CHEN Xi Ireneusz MALIK Malgorzata WISTUBA CAO Yiguo HOU Dongde TA Zhijie HE Jing ZHANG Lingyun yu Ruide ZHANG Haiyan SUN lingxiao State Key Laboratory of Desert and Oasis Ecology Xinjiang Institute of Ecology and GeographyChinese Academy of SciencesUrumqi 830011China University of Chinese Academy of Sciences Beijing 100049China Cele National Station of Observation&Research for Desert Grassland Ecosystem in Xinjiang Cele 848300China Polish-Chinese Centre for Environmental Research Institute of Earth SciencesUniversity of Silesia in KatowiceBankowa 1240-007 KatowicePoland Advanced Research Institute Southwest University of Political Science&LawChongqing 401120China School of Tourism&Research Institute of Human Geography Xi'an International Studies UniversityXi'an 710128China School of Environment and Material Engineering Yantai UniversityYantai 264005China

Central Asia is located in the hinterland of Eurasia,comprising Kazakhstan,Uzbekistan,Kyrgyzstan,Turkmenistan,and Tajikistan;over 93.00%of the total area is *** rise and human activities have severe impacts on the fragile *** the 1970s,nearly half the great lakes in Central Asia have shrunk and rivers are drying rapidly owing to climate changes and human *** shortage and ecological crisis have attracted extensive international *** general,ecosystem services in Central Asia are declining,particularly with respect to biodiversity,water,and soil ***,the annual average temperature and annual precipitation in Central Asia increased by 0.30℃/decade and 6.9 mm/decade in recent decades,*** rise significantly affected glacier retreat in the Tianshan Mountains and Pamir Mountains,which may intensify water shortage in the 21st *** increase in precipitation cannot counterbalance the aggravation of water shortage caused by the temperature rise and human activities in Central *** population of Central Asia is growing gradually,and its economy is increasing ***,the agricultural land has not been expended in the last two ***,water and ecological crises,such as the Aral Sea shrinkage in the 21st century,cannot be attributed to agriculture extension any *** regional development and water interception/transfer have led to the irrational exploitation of water resources in some watersheds,inducing downstream water shortage and ecological *** addition,accelerated industrialization and urbanization have intensified this ***,all Central Asian countries must urgently reach a consensus and adopt common measures for water and ecological protection.

关键词： water resources land-use changes ecosystem services climate changes human activities Aral Sea

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