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Chinese Journal of Population,resources and Environment 2004年第1期2卷 48-53页

作者： wang haiying, fan zhenjun, hou xiaoli, dong suochenginstitute of geographical sciences and natural resources research, cas, beijing 100101, china Institute of geographical sciences and natural resources research CAS Beijing 100101 China

Since the 1990s, the Yellow River stream has been temporarily interrupted for several years, which affects the development of society, the economy and human life, limits the economic potential of the drainage areas, and especially causes great harm to regions on the lower reaches. Based on the analysis of the relationship between the development of society and economy and water scarcity, the author thinks it is necessary to optimize and adjust the industrial structure that has extravagantly consumed enormous amounts of water, and to develop ecological agriculture, industry and tourism which are balanced with the ecological environment. Finally, the author puts forward several pieces of advice and countermeasures about how to build the economic systems by which water can be used economically.

关键词： drainage areas of the Yellow River water scarcity industrial structure optimize and adjust

Boosting spring runoff into the sea by reservoir regulation and its potential for estuarine fishery recovery

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Science china Earth sciences 2024年第5期67卷 1591-1603页

作者： Xiao WU houjie wang Yongyong fan Naishuang BI Chiyuan MIAO Jingping XU Zuosheng YANG College of Marine Geosciences Key Laboratory of Submarine Geosciences and Prospecting Technologyand Frontiers Science Center for Deep Ocean Multispheres and Earth SystemOcean University of ChinaQingdao 266100China Laoshan National Laboratory Qingdao 266061China Institute of the Yellow River Estuary and Coast Science Dongying 257000China State Key Laboratory of Earth Surface Processes and Resource Ecology Faculty of Geographical ScienceBeijing Normal UniversityBeijing 100875China Department of Ocean Science&Engineering Southern University of Science and TechnologyShenzhen 518055China

With global surge in reservoir construction over the past decades,river systems worldwide have been profoundly ***,flow manipulation by reservoirs has altered the natural hydrological processes,resulting in extensive modifications of fluvial-marine *** the adverse ecological consequences of reservoirs has become a global concern and has garnered increasing *** Yellow River,as one of the most extensively manipulated river systems globally,has experienced substantial changes in the amount and timing of water discharge due to the presence of numerous reservoirs scattered throughout its catchment *** alterations have caused physicochemical changes in the estuary and subsequent modifications to the estuarine *** recent years,the Yellow River Conservancy Committee initiated the release of water through the Xiaolangdi Dam during the major spawning period of fisheries,specifically in the spring,with the aim of improving the estuarine ecological *** 2011 to 2020,a total of 84.05 km^(3)of water was discharged from the Xiaolangdi Reservoir during spring seasons,of which 40%(33.16 km^(3))constituted water impounded within the reservoir during preceding ***,the spring water discharge from the Yellow River to the sea increased significantly from 1.50 km^(3)/yr to 3.46 km^(3)/yr in the past decade,leading to a decrease in estuarine salinity by 1.6 *** estuarine fishery resources,such as fish eggs in the Yellow River estuary,have demonstrated evident *** reservoir regulation in the Yellow River,which has successfully enhanced spring water discharge and subsequently restored estuarine fishery resources,presents an effective attempt for mitigating the adverse ecological effects associated with reservoirs.

关键词： Reservoir regulation Water release Spring runoff Estuarine ecosystem Yellow River

How territorial function determines CO_(2) emissions in china: An approach of spatial dimension

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Journal of geographical sciences 2024年第9期34卷 1677-1696页

作者： fan Jie wang Zheng Zhou Daojing GUO Rui CHEN dong LIU Baoyin LIU Hanchu QIAO Qin WU Jianxiong Key Laboratory of Regional Sustainable Development Modeling Institute of Geographic Sciences and Natural Resources ResearchCASBeijing 100101China College of resources and Environment University of Chinese Academy of SciencesBeijing 100049China Institutes of Science and Development CASBeijing 100190China School of Architecture&Planning Anhui Jianzhu UniversityHefei 230022China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China

Regional CO_(2) emissions are closely related to their territorial function, which is the major role a region plays in sustainable processes on the earth's surface. Given that china is implementing a top-down emission allocation quota strategy, studying the impact of a territorial function on emissions addresses the research gap from a spatial integration *** investigating the effects of three basic functional territories(urbanization zones(UZ), food security zones(FSZ), and ecological security zones(ESZ)), horizontal spatial structure and vertical combinations of functional territories on CO_(2) emission patterns in china, we found that functional territory patterns were highly coupled with the spatial distribution of CO_(2) emissions, with a ratio of CO_(2) emissions from UZ–FSZ–ESZ was stable at around 5:2:1 from 2000 to 2017. Spatially, CO_(2) emissions in FSZ and ESZ were 1.06–2.12 times higher than the average value within 200 km from the UZ. As territorial function combination increased with spatial upscaling, the emission characteristics attributable to functional territories became indistinct. The findings above can provide a basis for the long-term prediction of CO_(2) emissions from spatial dimension, support scientific guidance for inter-zone cooperation and classified management of carbon emissions with the major function oriented zones as impetus.

关键词： CO_(2)emission pattern functional territory spatial structure function combination spatial dimension-based analysis

长江金沙江段生态屏障建设的功能区划——以昭通市为例

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山地学报 2007年第3期25卷 309-316页

作者：王传胜杨晓光赵海英樊杰中国科学院地理科学与资源研究所中国科学院地理科学与资源研究所北京100101

以昭通市为例,探讨生态屏障地区的功能区划方案。生态屏障地区是国家“十一五”规划提出的4大类功能区中的限制开发区或禁止开发区,其目标是实施以国家、区域或流域生态安全为保障的生态系统恢复和保护工程。运用功能区划的基本思想,以... 详细信息

以昭通市为例,探讨生态屏障地区的功能区划方案。生态屏障地区是国家“十一五”规划提出的4大类功能区中的限制开发区或禁止开发区,其目标是实施以国家、区域或流域生态安全为保障的生态系统恢复和保护工程。运用功能区划的基本思想,以昭通市自然、生态与社会经济主要因子的评价为基础,借助G IS分析工具,以参评因子的空间态势为依据,划分生态保护和经济发展功能兼备的主体功能区,为在中小尺度的生态保护地区划分功能区提供了研究案例。

关键词：金沙江生态屏障功能区划昭通

TEMPORAL AND SPATIAL DYNAMICS OF DIFFERENT PARTICLE SIZE OF SUSPENDED SEDIMENT IN THE LIU RIVER CATCHMENTS, china

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International Journal of Sediment research 2006年第3期21卷 209-219页

作者： Haoming fan1,2, Qiangguo CAI3, Chengjiu GUO4 and Tieliang wang51 Lecturer, 3,4,5 Prof., College of Water Conservancy, Shen Yang Agriculture University, Shenyang 110161, china 2 Dr., Institute of geographical sciences and natural resources research, Chinese Academy of sciences, beijing 100101, china College of Water Conservancy Shen Yang Agriculture University Shenyang 110161 China Institute of geographical sciences and natural resources research Chinese Academy of SciencesBeijing 100101 China College of Water Conservancy Shen Yang Agriculture University Shenyang 110161 China

This paper presents information on the particle size characteristics of suspended sediment transported by the Liu River, which has the most serious erosion and sedimentation problems in the northeast of china. The median (d50) particle size for the individual stations on the Liu River ranged from 0.0343 to 0.0588 mm. Particles 0.05 mm of ranged from 24.3 to 53.7%. Spatial and temporal variations were noticeable in the particle size composition of suspended sediment within the study basins. At different locations the sediment particles size varies as a result of differences in catchment characteristics. The preferential deposition of the coarser size fractions has resulted in downstream fining of the suspended sediment load. In the flood season the suspended sediment particle size was finer than that in low flow season. The relations among water discharge, suspended sediment concentration, and sediment particle size are complicated. At small water discharge or suspended sediment concentration, with the increase of water discharge or sediment concentration the particle size of suspended sediment decreases to a minimum. However, when the water discharge or sediment concentration exceed certain threshold values (turning points) the particle size increases or remains constant with the increase of water discharge or sediment concentration. The tuning points are different in different rivers. Thus, their relations are double-valued. The negative relation between suspended sediment particle size and flow discharge reflects the importance of supply conditions and the positive relation reflects that the flow and hydraulics take a greater role in sediment transportation. On the whole, variation of the sediment particle size is subject to many factors such as the hydraulic conditions, the type and extent of erosion, human activities, vegetation coverage, hydraulic projects, and sediment supply. The findings reported in this paper have imp

关键词： Suspended sediment Temporal and spatial variation Particle size Liu River Catchment

Channel change at Toudaoguai Station and its responses to the operation of upstream reservoirs in the upper Yellow River

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Journal of geographical sciences 2010年第2期20卷 231-247页

作者： RAN Lishan wang Suiji fan xiaoli Key Laboratory of Water Cycle and Related Land Surface Processes Institute of Geographic Sciences and Natural Resources Research CAS Beijing 100101 China Graduate University of Chinese Academy of sciences Beijing 100049 China

The application of dams built upstream will change the input conditions, including water and sediment, of downstream fluvial system, and destroy previous dynamic quasi-equilibrium reached by channel streamflow, so indispensable adjustments are necessary for downstream channel to adapt to the new water and sediment supply, leading the fluvial system to restore its previous equilibrium or reach a new equilibrium. Using about 50-year-long hydrological, sedimentary and cross-sectional data, temporal response processes of Toudaoguai cross-section located in the upper Yellow River to the operation of reservoirs built upstream are analyzed. The results show that the Toudaoguai cross-section change was influenced strongly by upstream reservoir operation and downstream channel bed armoring thereafter occurred gradually and extended to the reach below Sanhuhekou gauging station. Besides, median diameter of suspended sediment load experienced a three-stage change that is characterized by an increase at first, then a decrease and an increase again finally, which reflects the process of channel bed armoring that began at Qingtongxia reservoir and then gradually developed downstream to the reach below Sanhuhekou cross-section. Since the joint operation strategy of Longyangxia, Liujiaxia and Qingtongxia reservoirs was introduced in 1986, the three-stage change trend has become less evident than that in the time period between 1969 and 1986 when only Qingtongxia and Liujiaxia reservoirs were put into operation alone. In addition, since 1987, the extent of lateral migration and thalweg elevation change at Toudaoguai cross-section has reduced dramatically, cross-sectional profile and location tended to be stable, which is beneficial to the normal living for local people.

关键词： cross-sectional profile median diameter reservoir Toudaoguai cross-section the upper Yellow River

过去千年黄河中下游地区耕地覆被变化定量重建

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Journal of geographical sciences 2024年第5期34卷 921-941页

作者：杨帆张航何凡能王亚非周胜男董冠鹏 Key research Institute of Yellow River Civilization and Sustainable Development Henan UniversityKaifeng 475001HenanChina Key Laboratory of Land Surface Pattern and Simulation Institute of Geographic Sciences and Natural Resources ResearchCASBeijing 100101China

Landscape in the middle and lower reaches of the Yellow River in china has un-dergone significant changes for thousands of years due to agricultural *** of reliable long-term and high-resolution historical cropland data has limited our ability in un-derstanding and quantifying human impacts on regional climate change,carbon and water *** this study,we used a data-driven modeling framework that combined multiple sources of data(historical provincial cropland area,historical coastlines,and satellite da-ta-based maximum cropland extent)with a new gridding allocation model for croplands dis-tribution to reconstruct a historical cropland dataset for the middle and lower reaches of the Yellow River at a 10-km resolution for 58 time points ranging from the period 1000 to *** cropland area in the study area increased by 2.3 times from 21.87 million ha in 1000 to 50.64 million ha in *** 1393,the area of cropland increased slowly and was pri-marily concentrated in the Weihe and Fenhe *** 1393-1820,the area of cropland increased rapidly,particularly on the North china *** 1820,cropland cover has tended to become *** newly reconstructed results agreed well with remotely sensed data as well as historical document-based facts regarding cropland distribution.

关键词： land use/cover change gridding allocation cropland cover last millennium

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中国东北黑土区土壤侵蚀环境

水土保持学报 2004年第2期18卷 66-70页

作者：范昊明蔡强国王红闪中国科学院地理科学与资源研究所中国科学院水利部水土保持研究所陕西杨陵712100

分析了黑土腐殖质、黑土母质、黑土区气候、地貌、植被及人类开垦等活动与黑土侵蚀之间的关系,指出了黑土区农业开垦与耕作是导致黑土流失的主要原因,同时,在人类干预条件下,某些自然因素对黑土加速侵蚀的影响就会明显地凸现出来。实际... 详细信息

分析了黑土腐殖质、黑土母质、黑土区气候、地貌、植被及人类开垦等活动与黑土侵蚀之间的关系,指出了黑土区农业开垦与耕作是导致黑土流失的主要原因,同时,在人类干预条件下,某些自然因素对黑土加速侵蚀的影响就会明显地凸现出来。实际上,黑土区独特的自然环境与人类活动方式已经使其成为目前中国土壤侵蚀潜在危险性最大的地区之一。目前,黑土流失速度相当快,不少地区已经出现了成土母质露于地表的现象,土壤侵蚀严重。如果我们现在还不能正确认识黑土地治理的紧迫性,黑土区很快就将变为名副其实的"不毛之地"了。

关键词：中国东北黑土区土壤侵蚀环境自然地理环境

Discussion on Sustainable Urbanization in Tibet

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Chinese geographical Science 2010年第3期20卷 258-268页

作者： fan Jie wang Hongyuan CHEN dong ZHANG Wenzhong wang Chuansheng Institute of Geographic sciences and natural resources research Chinese Academy of Sciences Beijing 100101 China

After 1995, Tibet entered the stage of accelerated urbanization. The large floating population fi＇om outside Tibet has become the driving force for urban expansion and the rising of urbanization rate. After analyzing the changes of urban functions and spatial structure of urban system in Tibet, this paper argues that before 1995 the urbanization in Tibet was mainly driven by administrative function, resulting in certain population migration, whereas in the past decade economic function has become the key factor accelerating urban expansion with the market mechanism creating large-scale inflow of population. The floating population-based urbanization and high population growth in the agricultural and pastoral areas of Tibet has promoted the regional economic prosperity, but exerted resources and environmental pressure and brought some problems for Tibetan culture protection at the same time. The conflicts and contradictions between urbanization and the sustainability of natural resources, environment and social development have been intensified. Addressing these problems, this paper proposes some countermeasures for improving the sustainability of Tibetan urbanization.

关键词： urbanization population resources environment sustainability Tibet

A case-based method of selecting covariates for digital soil mapping

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Journal of Integrative Agriculture 2020年第8期19卷 2127-2136页

作者： LIANG Peng QIN Cheng-zhi ZHU A-xing hou Zhi-wei fan Nai-qing wang Yi-jie State Key Laboratory of resources and Environmental Information System Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101P.R.China University of Chinese Academy of sciences Beijing 100049P.R.China Jiangsu Center for Collaborative Innovation in geographical Information Resource Development and Application School of GeographyNanjing Normal UniversityNanjing 210097P.R.China Key Laboratory of Virtual Geographic Environment Ministry of EducationNanjing Normal UniversityNanjing 210023P.R.China Department of Geography University of Wisconsin-MadisonMadisonWI 53706USA

Selecting a proper set of covariates is one of the most important factors that influence the accuracy of digital soil mapping(DSM).The statistical or machine learning methods for selecting DSM covariates are not available for those situations with limited *** solve the problem,this paper proposed a case-based method which could formalize the covariate selection knowledge contained in practical DSM *** proposed method trained Random Forest(RF)classifiers with DSM cases extracted from the practical DSM applications and then used the trained classifiers to determine whether each one potential covariate should be used in a new DSM *** this study,we took topographic covariates as examples of covariates and extracted 191 DSM cases from 56 peer-reviewed journal articles to evaluate the performance of the proposed case-based method by Leave-One-Out cross *** with a novices’commonly-used way of selecting DSM covariates,the proposed case-based method improved more than 30%accuracy according to three quantitative evaluation indices(i.e.,recall,precision,and F1-score).The proposed method could be also applied to selecting the proper set of covariates for other similar geographical modeling domains,such as landslide susceptibility mapping,and species distribution modeling.

关键词： digital soil mapping covariates case-based reasoning Random Forest