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Harmful evaluation of heavy metals from soil layer to the groundwater: Take the Jilin Hunchun Basin as an example

China Geology 2024年第1期7卷 116-124页

作者： Xiao-Dong Guo Qiang Liu Hui-Rong Zhang Xu-Fei Shi Chuan-Yu Qin Zhi-Qiang Zhang Shenyang Geological Survey Center China Geological SurveyMinistry of Natural ResourcesShenyang 110034China key laboratory of black land evolution and ecological effects Shenyang 110034China New Energy and Environment College Jilin UniversityChangchun 130026China Jilin Hydrogeological Survey Institute Changchun 130026China

The continuous enrichment of heavy metals in soils has caused potential harm to groundwater.Quantitative methods to evaluate the harm of heavy metals in soil to groundwater are lacked in previous studies.Based on the theory of groundwater circulation and solid-liquid equilibrium,a simple and easy-touse flux model of soil heavy metals migrating to groundwater is constructed.Based on groundwater environmental capacity,an innovative method for evaluating the harm of heavy metals in soil to groundwater is proposed,which has been applied in Hunchun Basin,Jilin Province,China.The results show that the fluxes of soil heavy metals into groundwater in the study area are Zn,Cu,As,Pb,Cd,Ni,and Hg in descending order.The content of heavy metals in groundwater(As,Hg,Cu,Pb,Zn,Ni,and Cd)in most areas has not risen to the threshold of environmental capacity within 10 years.The harm levels of soil heavy metals to groundwater in the most townships soils are at the moderate level or below.This evaluation method can quantify the flux of soil heavy metals into groundwater simply and quickly,determine the residual capacity of groundwater to heavy metals,evaluate the harm level of soil heavy metals to groundwater,provide support for relevant departments to carry out environmental protection of soil and groundwater,and provide a reference to carry out similar studies for related scholars.

关键词： Soil heavy metals As+Hg+Cu+Pb+Zn+Ni+Cd Environmental capacity Groundwater Hazard degree Migration flux model Agricultural geological survey engineering Hunchun Basin Jilin Province

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Responses of plant diversity and soil microorganism diversity to nitrogen addition in the desert steppe,China

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Journal of Arid land 2024年第3期16卷 447-459页

作者： YE He HONG Mei XU Xuehui LIANG Zhiwei JIANG Na TU Nare WU Zhendan College of Grassland Resources and EnvironmentInner Mongolia Agricultural UniversityInner Mongolia Key Laboratory of Soil Quality and Nutrient ResourcesHohhot 010018China key laboratory of Agricultural ecological Security and Green Development at University of Inner Mongolia Hohhot 010018China

Nitrogen(N)deposition is a significant aspect of global change and poses a threat to terrestrial biodiversity.The impact of plant-soil microbe relationships to N deposition has recently attracted considerable attention.Soil microorganisms have been proven to provide nutrients for specific plant growth,especially in nutrient-poor desert steppe ecosystems.However,the effects of N deposition on plant-soil microbial community interactions in such ecosystems remain poorly understood.To investigate these effects,we conducted a 6-year N-addition field experiment in a Stipa breviflora Griseb.desert steppe in Inner Mongolia Autonomous Region,China.Four N treatment levels(N0,N30,N50,and N100,corresponding to 0,30,50,and 100 kg N/(hm2•a),respectively)were applied to simulate atmospheric N deposition.The results showed that N deposition did not significantly affect the aboveground biomass of desert steppe plants.N deposition did not significantly reduce the alfa-diversity of plant and microbial communities in the desert steppe,and low and mediate N additions(N30 and N50)had a promoting effect on them.The variation pattern of plant Shannon index was consistent with that of the soil bacterial Chao1 index.N deposition significantly affected the beta-diversity of plants and soil bacteria,but did not significantly affect fungal communities.In conclusion,N deposition led to co-evolution between desert steppe plants and soil bacterial communities,while fungal communities exhibited strong stability and did not undergo significant changes.These findings help clarify atmospheric N deposition effects on the ecological health and function of the desert steppe.

关键词： soil microorganisms plant-microbial community interaction plant diversity nitrogen deposition desert steppe

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Urban water system theory and its model development and application

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Science China Earth Sciences 2024年第3期67卷 704-724页

作者： Jun XIA Yongyong ZHANG Dunxian SHE Shiyan ZHANG Jun YANG Mingquan LV Xiang ZHANG Anqi LUO Shengjun WU Yang LIU key laboratory of Water Cycle and Related land Surface Processes Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China State key laboratory of Water Resources&Hydropower Engineering Sciences Wuhan UniversityWuhan 430072China Aquatic Eco Health Group Key Laboratory of Urban Environment and HealthInstitute of Urban EnvironmentFujian Key Laboratory of Watershed EcologyChinese Academy of SciencesXiamen 361021China Chongqing Institute of Green and Intelligent Technology Chinese Academy of SciencesChongqing 400714China

The urban water system theory is an extension of the basin water system science on an urban scale, providing a new systematic solution for the unbalanced human-water relationship and severe water challenges, such as waterlogging, black and odorous water, and ecological degradation caused by urbanization. Most existing studies on urban water systems have focused on individual water cycle processes linked with water supply and sewage treatment plants, but mutual feedback between the water cycle and its associated material circulation and water ecology, as well as human processes, still needs further exploration. In this paper, the concept, theory, and technical methodology of the urban water system were developed based on the water cycle and basin water system science. The Urban Water System 5.0(UWS 5.0) model was developed by integrating the Time Variant Gain rainfall-runoff Model with Urban water system(TVGM_Urban) in different underlying surface conditions for analyzing the natural-social water cycle processes and their associated water environmental and ecological processes and the influence of multiscale sponge measures. Herein, five major simulation functions were realized: rainfall-runoff-nonpoint source pollutant load,water and pollutant transportations through the drainage network system, terminal regulation and purification, socioeconomic water cycle, and water system assessment and regulation. The location for the case study used in this paper was Wuhan City. The findings showed that the entire urban water system should consider the built-up area and its associated rivers and lakes as the research object and explore the integrations among the urban natural-social water cycle and river regulations inside and outside of the city as well as the effects of socioeconomic development and sponge measures on the water quantity-quality-ecology processes. The UWS 5.0 model efficiently simulated the urban rainfall-runoff process, total nitrogen(TN) and total phosphorus(TP) concentrations in water bodies, and charac

关键词： Urban water system Human-water relationship Water issue Green development Theoretical basis Mathematical model

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Agronomic performances of biodegradable and non-biodegradable plastic film mulching on a maize cropping system in the semi-arid Loess Plateau,China

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Pedosphere 2024年第1期34卷 88-96页

作者： Hao ZHANG Mengqiong CHEN Ruiquan QIAO Fan DING Hao FENG Rui JIANG Research Center for Cultural landscape Protection and ecological Restoration China-Portugal Belt and Road Cooperation Laboratory of Cultural Heritage Conservation ScienceGold Mantis School of ArchitectureSoochow UniversitySuzhou 215006China key laboratory of Plant Nutrition and the Agri-environment in Northwest China Ministry of AgricultureCollege of Natural Resources and EnvironmentNorthwest A&F UniversityYangling 712100China College of land and Environment Shenyang Agricultural UniversityShenyang 110866China Institute of Soil and Water Conservation Northwest A&F UniversityYangling 712100China

Biodegradable plastic film mulch (PFM) is considered an alternative to non-biodegradable PFM to mitigate the negative impacts of residual film.However,the agronomic performance of biodegradable PFM in comparison to non-biodegradable PFM still needs to be tested.In this study,we evaluated the effects of biodegradable and non-biodegradable PFM on soil physicochemical properties,microbial community,and enzyme activities,as well as maize growth performance.Biodegradable and non-biodegradable PFM both increased soil temperature,water content,N content,and microbial biomass and maize yield by up to 30%,but decreased soil enzyme activities as compared to no mulching (control,CK).Most soil physicochemical properties,microbial community,and enzyme activities were similar under non-biodegradable and biodegradable PFM at the early stages of maize growth.However,at the late stages,soil temperature,water content,mineral N,NO_(3)^(-)-N,ammonia monooxygenase (AMO) activity,and total phospholipid fatty acids (PLFAs) decreased under biodegradable PFM owing to film fragmentation.White PFM increased soil temperature,water content,and total PLFAs at the early stages of maize growth but decreased soil mineral N and total PLFAs at the late stages,as compared to black PFM.As soil temperature and N availability were the major factors affecting soil microbial community,microbial activity decreased after the fragmentation of biodegradable PFM,owing to the decreased soil temperature,water content,and mineral N.Notably,biodegradable PFM could decrease NO_(3)^(-)-N accumulation in topsoil by decreasing N transformation due to the lower microbial and N-related enzyme (e.g.,AMO) activities,compared with non-biodegradable PFM,which may avoid negative environmental impacts,such as NO_(3)^(-)-N leaching or gas emission after harvest.Maize yield,height,aboveground biomass,and N uptake under biodegradable PFM were similar to those under non-biodegradable PFM during maize growth,implying that biodegradable PFM has no negative impact on crop growth a

关键词： black plastic film mulching enzyme activity film fragmentation microbial community phospholipid fatty acid white plastic film mulching

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Relationship between spatio-temporal evolution of soil pH and geological environment/surface cover in the eastern Nenjiang River Basin of Northeast China during the past 30 years

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China Geology 2023年第3期6卷 369-382页

作者： Guo-dong Liu Ming-hui Wei Ze Yang Hong-ye Xiao Yi-he Zhang Na-na Fang Shenyang Center of China Geological Survey Ministry of Natural ResourcesShenyang 110034China key laboratory of black Soil evolution and ecological Effect Ministry of Natural ResourcesShenyang 110034China key laboratory of black Soil evolution and ecological Effect Liaoning ProvinceShenyang 110034China Northeast Geological S&T Innovation Center of China Geological Survey Shenyang 110034China

To illuminate the spatio-temporal variation characteristics and geochemical driving mechanism of soil pH in the Nenjiang River Basin,the National Multi-objective Regional Geochemical Survey data of topsoil,the Second National Soil Survey data and Normalized Difference Vegetation Index(NDVI)were analyzed.The areas of neutral and alkaline soil decreased by 21100 km^(2)and 30500 km^(2),respectively,while that of strongly alkaline,extremely alkaline,and strongly acidic soil increased by 19600 km^(2),18200 km^(2),and 15500 km^(2),respectively,during the past 30 years.NDVI decreased with the increase of soil pH when soil pH>8.0,and it was reversed when soil pH<5.0.There were significant differences in soil pH with various surface cover types,which showed an ascending order:Arbor

关键词： Soil pH Spatio-temporal variation Surface cover Soybean-maize-rice Woodland-grassland-wetland Saline-alkali land-sandy land Geological environment land quality geochemical survey engineering Nenjiang River Basin

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Achievements and challenges of primate conservation in China

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Zoological Research(Diversity and Conservation) 2024年第1期1卷 66-74页

作者： Bao-Guo Li He Zhang Ming Li Xue-Long Jiang Peng-Fei Fan Jiang Zhou Song-Tao Guo Xiao-Guang Qi Jin-Hua Li Ji-Qi Lu Dong-Po Xia Liang-Wei Cui Zuo-Fu Xiang Qi-Hai Zhou Zhi-Pang Huang Cheng-Ming Huang Wen Xiao Hui-Jian Hu Zhi-Xin Zhou Ming-Yong Chen Da-Yong Li Peng-Lai Fan Yin Yang Ru-Liang Pan Shaanxi key laboratory for Animal Conservation College of Life SciencesNorthwest UniversityXi’anShaanxi 710069China Jiangxi Provincial key laboratory of Conservation Biology College of ForestryJiangxi Agricultural UniversityNanchangJiangxi 330045China key laboratory of Animal Ecology and Conservation Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China State key laboratory of Genetic Resources and evolution Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650201China School of Life Sciences Sun Yat-sen UniversityGuangzhouGuangdong 510275China School of Karst Science Guizhou Normal UniversityGuiyangGuizhou 550025China International Collaborative Research Center for Huangshan Biodiversity and Tibetan Macaque Behavioral Ecology Anhui UniversityHefeiAnhui 230601China Institute of Biodiversity and Ecology Zhengzhou UniversityZhengzhouHenan 450001China key laboratory for Conserving Wildlife with Small Populations in Yunnan Southwest Forestry UniversityKunmingYunnan 650224China College of Life Sciences and Technology Central South University of Forestry and TechnologyChangshaHunan 410004China key laboratory of Ecology of Rare and Endangered Species and Environmental Protection(Ministry of Education) Guangxi Normal UniversityGuilinGuangxi 541004China International Centre of Biodiversity and Primate Conservation Centre Dali UniversityDaliYunnan 671003China Guangdong key laboratory of Animal Conservation and Resource Utilization Institute of ZoologyGuangdong Academy of SciencesGuangzhouGuangdong 510663China School of Life Sciences Yunnan UniversityKunmingYunnan 650500China key laboratory of Southwest China Wildlife Resources Conservation(Ministry of Education) China West Normal UniversityNanchongSichuan 637001China Institute of International Rivers and Eco-security Yunnan UniversityKunmingYunnan 650500China School of Human Sciences The University of Western AustraliaPerthWA 6009Australia

The dual impact of climate change and human activities has precipitated a sharp decline in primate biodiversity globally.China is home to the most diverse primate species in the Northern hemisphere,which face severe ecological threats due to the expansion of modern agriculture,extensive exploitation and consumption of natural resources,and excessive land development during its transition from an agricultural to a modern society.In response,China has implemented various ecological conservation measures,including habitat restoration and protection.These efforts have made substantial strides in biodiversity conservation,with certain regions witnessing an increase in primate populations.In the current study,we conducted a systematic review of historical documents and field research data related to Chinese primates,evaluating the endangered status of primate species in China.Despite improvements in the habitats of most primate species and some population growth,many species still face severe threats,including declining and small populations.Species such as the Myanmar snub-nosed monkey(Rhinopithecus strykeri),eastern black crested gibbon(Nomascus nasutus),and Hainan gibbon(N.hainanus)remain particularly vulnerable due to their limited distribution ranges and extremely small populations.Insufficient scientific data,fragmented information,and not enough studies in conservation biology further compound the challenges.Moreover,there is a notable lack of detailed population monitoring data for species such as the Bengal slow loris(Nycticebus bengalensis),pygmy slow loris(N.pygmaeus),Indochinese gray langur(Trachypithecus crepusculus),Shortridge’s langur(T.shortridgei),and capped langur(T.pileatus),which hinders the development of practical and targeted conservation management strategies.Therefore,for national biodiversity conservation,there is an urgent need for specialized primate surveys,enhancing habitat protection and restoration,and increasing focus on cross-border conservation strategies and regional cooperation.Ther

关键词： Primates Biodiversity Habitat fragmentation Habitat restoration Conservation strategies

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effects of exogenic chloride on oxidative degradation of chlorinated azo dye by UV-activated peroxodisulfate

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Chinese Chemical Letters 2021年第8期32卷 2544-2550页

作者： Wenya Peng Yu Fu Lingli Wang Yifan Wang Yongxia Dong Ying Huang Zhaohui Wang Shanghai key Lab for Urban ecological Processes and Eco-Restoration School of Ecological and Environmental SciencesEast China Normal UniversityShanghai 200241China School of Civil and Environmental Engineering Ningbo UniversityNingbo 315211China Technology Innovation Center for land Spatial Eco-Restoration in Metropolitan Area Ministry of Natural ResourcesShanghai 200062China Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste Shanghai 200241China Jiangsu Provincial key laboratory of Environmental Science and Engineering Suzhou University of Science and TechnologySuzhou 215009China

Recently,the degradation of organic compounds in saline dye wastewater by sulfate radicals(SO4·-)-based advanced oxidation processes(AOPs) have attracted much attention.However,previous studies on these systems have selected non-chlorinated dyes as model compounds,and little is known about the transformation of chlorinated dyes in such systems.In this study,acid yellow 17(AY-17) was selected as a model of chlorinated contaminants,and the degradation kinetics and evolution of oxidation byproducts were investigated in the UV/PDS system.AY-17 can be efficiently degraded(over 98% decolorization)under 90 min irradiation at pH 2.0-3.0,and the reaction follows pseudo-first order kinetics.Cl-accelerated the degradation of AY-17,but simultaneously led to an undesirable increase of absorbable organic halogen(AOX).Several chlorinated byproducts were identified by liquid chromatography-mass spectrometry(LC-MS/MS) in the UV/PDS system.It indicates that endogenic chlorine and exogenic Cl-reacted with SO_(4)·- to form chloride radicals,which are involved in the dechlorination and rechlorination of AY-17 and intermediates.The possible degradation mechanisms of AY-17 photooxidative degradation are proposed.This work provides valuable information for further studies on the role of exogenic chloride in the degradation of chlorinated azo dyes and the kinetic parameters in the PDS-based oxidation process.

关键词： Sulfate radical AOX Kinetics Chlorinated byproducts

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effects of land-use types on soil organic carbon stocks:a case study across an altitudinal gradient within a farmpastoral area on the eastern Qinghai-Tibetan Plateau, China

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Journal of Mountain Science 2018年第12期15卷 2693-2702页

作者： WANG Fang-ping WANG Xin-chuan YAO Bu-qing ZHANG Zhong-hua SHI Guo-xi MA Zhen CHEN Zhi ZHOU Hua-kun College of ecological and Environmental Engineering State Key Laboratory of Plateau Ecology and AgricultureQinghai UniversityXining 810015China key laboratory of Restoration Ecology of Cold Area in Qinghai Province Northwest Institute of Plateau BiologyChinese Academy of SciencesXining 810008China key laboratory of Adaptation and evolution of Plateau Biota Chinese Academy of SciencesXining 810008China Farm of Good Forage Grass Breeding in Qinghai Province Tongde 813201China College of Bioengineering and Biotechnology Tianshui Normal UniversityTianshui 741000China key laboratory of Medicinal Animal and Plant in Qinghai-Tibetun Plateau in Qinghai Province Qinghai Normal UniversityXining 810008China University of Chinese Academy of Sciences Beijing 100o49China

A crucial region for China's ‘Grain-forGreen Policy' is located within a traditional farmpastoral area, between 2000 to 3000 m above sea level, on the eastern Qinghai-Tibetan Plateau.However, the responses of soil organic carbon(SOC) to different land-use patterns in this region are unclear. Here, we determined the SOC(0–20 cm) content of grasslands and forests that are being converted from farmlands, as well as in abandoned arable land and arable land in this region. The factors influencing the reclaimed lands were analyzed along altitudes from 2030 to 3132 m. Our results showed that SOC content was higher for grassland and abandoned arable land than forest and arable land. The SOC content increased with the increase in altitude for total land-use patterns. Further, the grassland and abandoned arable land had higher SOC content than the forest with almost parallel trends along the increase in altitude. However, the proportion of regulated factors of altitude and species richness varied among forest, grassland, and abandoned arable land. Our results indicated that the land-use pattern of returning farmland to grassland and abandoned arable land was more effective in terms of the SOC storage in the superficial layer in this altitude range in the Qinghai-Tibetan Plateau, thereby being beneficial to optimizing land management in this region.

关键词： Soil organic carbon Grain for Green program Farming land Qinghai-Tibetan Plateau

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纬度变异对欧洲千里光原产地与引入地种群野外和同质生物园比较的影响

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Journal of Plant Ecology 2021年第3期14卷 414-424页

作者： Bi-Ru Zhu Xiao-Meng Li Da-Yong Zhang Wan-Jin Liao State key laboratory of Earth Surface Processes and Resource Ecology and Ministry of Education key laboratory for Biodiversity Science and ecological Engineering College of Life SciencesBeijing Normal UniversityBeijing 100875China

野外和同质生物园比较经常用于研究入侵植物快速进化。当原产地或引入地的种群地理分布范围较广时,表型性状的纬度渐变可能会影响这种比较分析。我们检验了纬度渐变是否会影响欧洲千里光(5enec/owv/gara)引入地和原产地种群间的比较。... 详细信息

野外和同质生物园比较经常用于研究入侵植物快速进化。当原产地或引入地的种群地理分布范围较广时,表型性状的纬度渐变可能会影响这种比较分析。我们检验了纬度渐变是否会影响欧洲千里光(5enec/owv/gara)引入地和原产地种群间的比较。欧洲千里光原产于欧洲,现己引入到中国东北和西南地区。我们对欧洲原产地和中国引入地的野外种群进行了调查,同时在瑞士开展了同质生物园实验,比较了中国引入地种群与欧洲原产地种群的株高、分枝数和花序数,以此衡量两地欧洲千里光种群在生长和繁殖方面的差异。野外调查表明,中国引入地种群的株高和花序数量显著大于欧洲原产地种群,这一结果与增强竞争力进化假说的预测一致。在同质生物园比较中,当考虑纬度渐变的作用时,中国种群的花序数量显著大于欧洲种群。分别将中国东北部、中国西南部两个地区的种群与欧洲种群进行比较,无论在野外还是同质生物园,与欧洲种群处于相似纬度的中国东北部种群表现出更高的株高和更多的花序。但位于更低纬度的中国西南部种群的繁殖表现并不强于原产地种群。因此我们的结果表明,当引入地种群地理分布较广时,无论野外还是同质生物园的比较都应该考虑表型性状纬度渐变的影响。

关键词： .•同质生物园增强竞争力进化假说生境生产力入侵纬度渐变

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Geological and surfacial processes and major disaster effects in the Yellow River Basin

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Science China Earth Sciences 2022年第2期65卷 234-256页

作者： Hengxing LAN Jianbing PENG Yanbo ZHU Langping LI Baotian PAN Qiangbing HUANG Junhua LI Qiang ZHANG School of Geological Engineering and Geomatics Chang’an UniversityXi’an 710054China State key laboratory of Resources and Environmental Information System(LREIS) Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China College of Earth and Environmental Science Lanzhou UniversityLanzhou 730000China Yellow River Institute of Hydraulic Research Yellow River Conservancy CommissionZhengzhou 450003China State key laboratory of Earth Surface Processes and Resource Ecology Beijing Normal UniversityBeijing 100875China

The Yellow River Basin(YRB) is characterized by active geological and tectonic processes, rapid geomorphological evolution, and distinct climatic diversity. Correspondingly, major disasters in the YRB are characterized by varied types,extensive distributions, and sudden occurrences. In addition, major disasters in the YRB usually evolve into disaster chains that cause severe consequences. Therefore, major disasters in the YRB destroy ecologies and environments and influence geological and ecological safety in the basin. This paper systematically reviews research on geological and surface processes, major disaster effects, and risk mitigation in the YRB, discusses the trends and challenges of relevant research, analyzes the key scientific problems that need to be solved, and suggests prospects for future research based on the earth system science concept. Themes of research that should be focused on include geological, surface and climatic processes in the YRB and their interlinking disaster gestation mechanisms;formation mechanisms and disaster chain evolutions of giant landslides in the upper reach of the YRB;mechanisms and disaster chain effects of loess water-soil disasters in the middle reach of the YRB;occurrence patterns and amplifying effects of giant flood chains in the lower reach of the YRB;and risk mitigations of major disasters in the YRB. key scientific problems that need to be solved are as follows: how to reveal the geological, surface and climatic processes that are coupled and interlinked with gestation mechanisms of major disasters;how to clarify the mutual feedback effects between major disasters and ecology;and how to develop a human-environmental harmony-based integrated risk mitigation system for major disasters. Prospects for future studies that follow the earth system science concept include the following: highlighting interdisciplinary research to reveal the interlinked disaster gestation mechanisms of the geology, surface and climate in the YRB in the past, present, and future;forming th

关键词： Yellow River Basin Geological process Geomorphological evolution Major disaster effect Ecology and environment Risk mitigation

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