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ecological safety assessment in Hulunbeier steppe based on the landscape pattern

2013 2nd International Conference on Energy and environmental protection, ICEEP 2013

作者： Gao, Jun Jing Lv, Shi Hai Zheng, Zhi Rong Feng, Chao Yang Ye, Sheng Xing Zhang, Chen State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental Sciences Beijing 100012 China College of Water Sciences Beijing Normal University Engineering Research Center of Groundwater Pollution Control and Remediation Ministry of Education Beijing 100875 China

ISBN: (纸本)9783037857427

Based on TM remote sensing image and topographic map, the spatial information of landscape pattern was extracted in Hulunbeier steppe in 1995, 2000, 2005 and 2010. With the principles and methods of landscape ecology, landscape fragmentation index, division index, dominance index and fragility index were selected to construct the ecological safety index which was used to quantitatively analyze the dynamic changes of landscape pattern and elucidated ecological safety status in study area. Result showed that the overall landscape tended to become fragmentized and complicated with the total number of patches increasing in the study area from 1995 to 2010. The ecological safety index of landscape types can be classified into four grades, grassland > unused land, wood land > water body, crop land > construction land. Overall, the regional ecological safety status got worse with the ecological safety index of natural landscapes decreasing and the ecological safety index of artificial landscapes increasing. In particular, the area of construction land had a continuous increase with a higher growth rate (7.41% per year during 2005~2010), which will be unfavorable to regional ecological safety as the biggest potential risk. © (2013) Trans Tech Publications, Switzerland.

关键词： ecology

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Genome Assembly and Population Resequencing Reveal the Geographical Divergence of Shanmei(Rubus corchorifolius)

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Genomics, Proteomics & Bioinformatics 2022年第6期20卷 1106-1118页

作者： Yinqing Yang Kang Zhang Ya Xiao Lingkui Zhang Yile Huang Xing Li Shumin Chen Yansong Peng Shuhua Yang Yongbo Liu Feng Cheng Institute of Vegetables and Flowers Chinese Academy of Agricultural SciencesKey Laboratory of Biology and Genetic Improvement of Horticultural CropsMinistry of Agriculture and Rural AffairsSino-Dutch Joint Laboratory of Horticultural GenomicsBeijing 100081China Biotechnology Research Center Xiangxi Academy of Agricultural SciencesJishou 416000China Lushan Botanical Garden Chinese Academy of SciencesJiujiang 332900China State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China

Rubus corchorifolius(Shanmei or mountain berry,2n=14)is widely distributed in China,and its fruits possess high nutritional and medicinal ***,we reported a highquality chromosome-scale genome assembly of Shanmei,with contig size of 215.69 Mb and 26,696 *** comparison among Rosaceae species showed that Shanmei and Fupenzi(Rubus chingii Hu)were most closely related,followed by blackberry(Rubus occidentalis),and that environmental adaptation-related genes were expanded in the Shanmei *** resequencing of 101 samples of Shanmei collected from four regions in the provinces of Yunnan,Hunan,Jiangxi,and Sichuan in China revealed that among these samples,the Hunan population of Shanmei possessed the highest diversity and represented the more ancestral ***,the Yunnan population underwent strong selection based on the nucleotide diversity,linkage disequilibrium,and historical effective population size ***,genes from candidate genomic regions that showed strong divergence were significantly enriched in the flavonoid biosynthesis and plant hormone signal transduction pathways,indicating the genetic basis of adaptation of Shanmei to the local *** high-quality assembled genome and the variome dataset of Shanmei provide valuable resources for breeding applications and for elucidating the genome evolution and ecological adaptation of Rubus species.

关键词： Rubus corchorifolius Genome assembly Resequencing Divergence Genome evolution

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assessment on 2000-2010 ecosystem function changes of Yiwulvshan national nature scenic area

Assessment on 2000-2010 ecosystem function changes of Yiwulv...

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2014 International Conference on Green Materials and environmental Engineering, GMEE 2014

作者： Wang, Xiao-Chen Zhu, Jing-Hai Hu, Yuan-Man Liu, Wei-Ling Insititue of Applied Ecology Chinese Academy of Sciences ShenyangLiaoning China Liaoning Enviromental Impact Assessment ShenyangLiaoning China State Key Laboratory of Regional Eco-process and Function Assessment CRAES Beijing China

ISBN: (纸本)9783038353201

Based on the remote-sensing data and ground data, this study is conducted on the ecosystem function of Yiwulvshan National Nature Scenic Area (hereinafter as “Yiwulvshan Scenic Area”) from 2000 to 2010 with the GIS (geographic information system) and RS (remote sensing) technology, so as to provide reference for better environmental protection of the scenic area. It is shown from the results that there is no obvious change of land use in Yiwulvshan Scenic Area;while the capacity for soil and water conservation is slightly improved mainly due to increase of vegetation coverage;the vegetation net primary productivity declines somewhat about 5.27% in past 10 years;and biodiversity is slightly increased. As a whole, the ecosystem function of Yiwulvshan Scenic Area basically kept stable in the past 10 years, which indicated that the existing regulations can effectively protect the ecological function of the Scenic Area. © (2014) Trans Tech Publications, Switzerland.

关键词： Biodiversity

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The temporal and spatial vegetation variation of liaohe basin and its relation with climate changes

The temporal and spatial vegetation variation of liaohe basi...

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2014 International Conference on Green Materials and environmental Engineering, GMEE 2014

ISBN: (纸本)9783038353201

In this paper, 2000-2010 NDVI data of Liaohe Basin is obtained with the RS technology;the distribution map of precipitation and air temperature in Liaohe Basin is generated by the GIS technology, and then the temporal and spatial vegetation variation of Liaohe Basin and its relation with climate changes have been studied by means of raster data spatial analysis, correlation analysis and multiple regression analysis, so as to provide a scientific basis for ecological environment protection, planning and development of Liaohe Basin. It is shown from results that: 1) From 2000 to 2010, the vegetation coverage increased significantly;which presents a gradual decrease from east to west on the spatial distribution;2) For the temporal distribution, the precipitation presents a fluctuant upward trend;while temperature is fluctuated significantly with a slight decrease. For the spatial distribution, precipitation decreased gradually from the east to west, while temperature rises from the northeast to southwest;and 3) Vegetation coverage of Liaohe Basin is positively related with precipitation and temperature in the temporal and spatial distribution, but not significantly, it is indicated that, except for the meteorological factors, the artificial impact and other factors, such as land use, played an important role to vegetation variation of Liaohe Basin in the recent 10 years. However in terms of two influence factors of precipitation and temperature, the former has significantly contributed to NDVI change of Liaohe Basin. © (2014) Trans Tech Publications, Switzerland.

关键词： Climate change

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Adsorptive removal of PPCPs from aqueous solution using carbon-based composites:A review

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Chinese Chemical Letters 2022年第8期33卷 3585-3593页

作者： Tong Wang Jie He Jian Lu Yi Zhou Zhaohui Wang Yanbo Zhou State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process East China University of Science and TechnologyShanghai 200237China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration School of Ecological and Environmental SciencesEast China Normal UniversityShanghai 200241China

Far-ranging and improper uses of pharmaceuticals and personal care products(PPCPs)over the last few decades have led to severe water contamination that imposes serious effects on human beings and the ecological ***,there is an increasing demand for a highly-efficient and environmentally friendly technology for the removal of PPCPs from aqueous *** technology is an appropriate technology to solve this ***-based composites,ranging from modified activated carbon to functionalized biochar,show great potential for this *** review hence elaborates on the environmental occurrences and risks of PPCPs and summarizes the recent progress in removing PPCPs from water using carbon-based *** pore structure,relatively large specific surface area(SSA),abundant surface functional groups,highly aromatic structures and the extra excellent characteristics of the cooperative materials contribute to their outstanding adsorption ***,the biochar-clay material is cost effective and more efficient compared to traditional activated carbon regarding the adsorption of *** the emerging adsorbents,graphene and carbon nanotubes composites show superior adsorption *** adsorption mechanisms,such as electrostatic interactions,hydrogen bonding,and pore filling,are discussed in details.

关键词： Adsorption Carbon-based composites PPCPs Adsorbent Water treatment

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The Correction ground spectral model for estimating above-ground net primary productivity at the peak of growing season on Meadow Steppe, Hulunbeier, Inner Mongolia, China

The Correction ground spectral model for estimating above-gr...

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International Conference on Agro-Geoinformatics

作者： Zhaoyan Diao Shihai Lv Chaoyang Feng Derong Su Liang Sun Xue Tian The Key Laboratory of Silviculture and Conservation of Ministry of Education Beijing Forestry University Beijing China State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Research Academy of Environmental Sciences Beijing China

On the surface of hyperspectral data of remote sensing to estimate grassland biomass, the soil water content, organic matter content important impact on the model application. An ASD Fieldspec 3 spectroradiometer was used for spectral measurements of the Hulunbeier Meadow Steppe, Inner Mongolia, China, in late July, 2013. Ground spectral models were built to estimate the Above-ground Net Primary Productivity (ANPP) at the peak of the growing season from the Correction Normalized Difference Vegetation Index (C NDVI ) measured in the field. The SPSS software were used to assess relationships between ANPP and C NDVI . Based on the coefficient of determination (R 2 ), quadratic model (R 2 =0.808) and exponential model (R 2 =0.717) were batter than others. Error analysis shows that the linear equation has the biggest standard error of the prediction (SE = 82.42g/m 2 ), the logarithmic curve equation has the smallest SE (SE=18.59g/m 2 ). After considering all factors, a quadratic equation between ANPP and C NDVI (ANPP=3738.048 NDVI MODIS 2 -259.1588NDVI MODIS +1309.847, R2=0.808, SE=66.25g/m 2 , MEC=0.820, P

关键词： Vegetation mapping Biomass Biological system modeling Remote sensing Mathematical model Indexes Soil

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assessment on 2000-2010 ecosystem function Changes of Yiwulvshan National Nature Scenic Area

Assessment on 2000-2010 Ecosystem Function Changes of Yiwulv...

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2014 International Conference on Green Materials and environmental Engineering (GMEE2014)

作者： Xiao-chen Wang Jing-hai Zhu Yuan-man Hu Wei-ling Liu Insititue of Applied Ecology Chinese Academy of Sciences State Key Laboratory of Regional Eco-process and Function Assessment CRAES

Based on the remote-sensing data and ground data, this study is conducted on the ecosystem function of Yiwulvshan National Nature Scenic Area(hereinafter as "Yiwulvshan Scenic Area") from 2000 to 2010 with the GIS(geographic information system) and RS(remote sensing) technology, so as to provide reference for better environmental protection of the scenic area. It is shown from the results that there is no obvious change of land use in Yiwulvshan Scenic Area;while the capacity for soil and water conservation is slightly improved mainly due to increase of vegetation coverage;the vegetation net primary productivity declines somewhat about 5.27% in past 10 years;and biodiversity is slightly increased. As a whole, the ecosystem function of Yiwulvshan Scenic Area basically kept stable in the past 10 years, which indicated that the existing regulations can effectively protect the ecological function of the Scenic Area.

关键词： Yiwulvshan Change assessment ecosystem function

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The Temporal and Spatial Vegetation Variation of Liaohe Basin and its Relation with Climate Changes

The Temporal and Spatial Vegetation Variation of Liaohe Basi...

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2014 International Conference on Green Materials and environmental Engineering (GMEE2014)

作者： Xiao-chen Wang Jing-hai Zhu Yuan-man Hu Wei-ling Liu Insititue of Applied Ecology Chinese Academy of Sciences State Key Laboratory of Regional Eco-process and Function Assessment CRAES

关键词： Vegetation coverage Climate factor Temporal and spatial variation Liaohe Basin

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Ceratopteris chunii and Ceratopteris chingii(Pteridaceae),two new diploid species from China,based on morphological,cytological,and molecular data

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Plant Diversity 2022年第3期44卷 300-307页

作者： Jun-Hao Yu Rui Zhang Qiao-Ling Liu Fa-Guo Wang Xun-Lin Yu Xi-Ling Dai Yong-Bo Liu Yue-Hong Yan Eastern China Conservation Centre for Wild Endangered Plant Resources Shanghai Chenshan Botanical GardenShanghai 201602China College of Life Science Shanghai Normal UniversityShanghai200234China Shenzhen Key Laboratory for Orchid Conservation and Utilization National Orchid Conservation Center of China and the Orchid Conservation&Research Center of ShenzhenShenzhen518114China Guangdong Provincial Key Laboratory of Applied Botany South China Botanical GardenChinese Academy of SciencesGuangzhou510650China College of Forestry Central South University of Forestry&TechnologyChangshaHunan410004China State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Chinese Research Academy of Environmental SciencesBeijing100012China

Understanding how natural hybridization and polyploidizations originate in plants requires identifying potential diploid ***,cryptic plant species are widespread,particularly in Ceratopteris(Pteridaceae).Identifying Ceratopteris cryptic species with different polyploidy levels is a challenge because Ceratopteris *** high degrees of phenotypic ***,two new cryptic species of Ceratopteris,Ceratopteris chunii and Ceratopteris chingii,are described and *** analyses reveal that each of the new species form a well-supported *** and *** are similar to Ceratopteris gaudichaudii *** and ***,respectively,but distinct from their relatives in the stipe,basal pinna of the sterile leaf or subelliptic shape of the fertile leaf,as well as the spore *** addition,chromosome studies indicate that *** and *** are both *** findings will help us further understand the origin of Ceratopteris polyploids in Asia.

关键词： Ceratopteris Phylogeny Chromosome Taxonomy Cryptic species

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大规模人工造林是否会加剧中国北方土壤水分亏缺?

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Science Bulletin 2024年第10期69卷 1506-1514页

作者：王秋铭刘鸿雁梁博毅石亮伍露曹静 College of Urban and Environmental Sciences and PKU Saihanba StationPeking UniversityBeijing 100871China College of Forestry Precision Forestry Key Laboratory of BejingBejing Forestry UniversityBeijing 10083China Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China China Meteorological Administration Training Center Beijing 100081China State Key Laboratory of Environmental Criteria and Risk Assessment State Environmental Protection Key Laboratory of Regional Eco-process and Function AssessmentChinese Research Academy of Environmental SciencesBeijing 100012China

Trading water for carbon has cautioned large-scale afforestation in global ***,model simulations suggested that the consumption of soil water could be partially offset by increasing precipitation due to vegetation feedback.A systematic meta-analysis of long-term and large-scale field observations is urgently required to address the abovementioned limitations,and the implementation of large-scale afforestation since 1978 in northern China provides an ideal *** study collected data comprising 1226 observations from 98 sites in northern China to assess the variation in soil water content(SWC)with stand age after afforestation and discuss the effects of tree species,precipitation and conversions of land use types on *** found that the SWC has been decreased by coniferous forest and broadleaf forest at rates of 0.6 and 3.2 mm decade-1,respectively,since *** is a significant declining trend of SWC with the stand age of plantations,and the optimum growth stage for plantation forest is 0-20 a in northern ***,we found increases in SWC for the conversion from grassland to forest and in the low-precipitation region,both are corresponding to the increased SWC in coniferous *** study implies that afforestation might lead to a soil water deficit crisis in northern China in the long term at the regional scale but depends on prior land use types,tree taxa and the mean annual precipitation regime,which sheds light on decision-making regarding ecological restoration policies and water resource management in drylands.

关键词： Soil water Afforestation Tree planting Land use changes Arid and semiarid area

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