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绿生生珠宝
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《中国宝石》 2003年第3期72-72,共1页
关键词 缅甸 翡翠玉石 翡军饰品 绿生生珠宝公司 白玉饰品
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批发高档缅旬翡翠绿生生珠宝
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《中国宝石》 2001年第2期105-105,共1页
关键词 缅旬翡翠 绿生生珠宝公司 翡翠饰品 加工制作 珠宝设计
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RELATIONSHIP BETWEEN GROWTH AND MORPHOLOGY OF METARRHIZIUM ANISOPLIAE IN BIOTRANSFORMATION OF STEROID 被引量:2
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作者 阳葵 李晓静 +2 位作者 王积分 段世铎 张鎏 《Transactions of Tianjin University》 EI CAS 2001年第1期1-6,共6页
The fermentation with mold metarrhizium anisopliae has been carried out to determine the relationship between mycelial morphology and growth.Like the biomass concentration,the mycelial morphology seems to be coupled t... The fermentation with mold metarrhizium anisopliae has been carried out to determine the relationship between mycelial morphology and growth.Like the biomass concentration,the mycelial morphology seems to be coupled to growth phases:the fractal dimension,a feature calculated from the morphological images,increases during the late lag phase and the early exponential phase,and culminates at a value near 2.4 at half of the exponential phase.This can be attributed to the marked change of rough and smooth pellet proportions during growth and the change can be well expressed by the fractal analysis of mycelial morphology.The mycelial morphology is also strongly related to the biotransformation activity:a mycelial sample was withdrawn from the culture to use for fractal analysis before the steroid substrate (16α,17α epoxy 4 pregnene 3,20 dione) was added;the higher fractal dimension corresponds to the higher conversion rate of steroid biotransformation.And the maximum of fractal dimension appeared prior to the maximum of biomass concentration.It is therefore possible to utilize the fractal dimension curve to supervise the fermentation process more timely and availably than to use the conventional biomass curve to do. 展开更多
关键词 metarrhizium anisopliae MORPHOLOGY GROWTH fractal dimension BIOTRANSFORMATION STEROID
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Dynamic Change Laws of Chlorophyll Fluorescence Parameters in Different Parts of Leaves of Ginkgo biloba
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作者 王秀珍 段爱国 +1 位作者 保尔江 张建国 《Agricultural Science & Technology》 CAS 2011年第4期530-532,536,共4页
[Objective] The aim was to explore the dynamic change laws of chlorophyll fluorescence parameters in different parts of leaves of Ginkgo biloba.[Method] The G.biloba cultivated in North China was used as materials in ... [Objective] The aim was to explore the dynamic change laws of chlorophyll fluorescence parameters in different parts of leaves of Ginkgo biloba.[Method] The G.biloba cultivated in North China was used as materials in this study to explore the law of daily change and ten-day change of the chlorophyll fluorescence parameters of leaves in different parts of leaves.[Result] The daily change of Fm(maximal fluorescence),Fv(variable fluorescence),Fv/Fm,Fm/Fo(electron transfer rate),Fv/Fo(potential activity of PSⅡ)in leaves of G.biloba obviously presented a descending-ascending trend,the lowest value was at 12:00 and the NPQ(non-photochemical quenching)of sunny leaves arrived at the maximum at noon.The values of Fm,Fv,Fv/Fm,Fm/Fo,Fv/Fo in shade leaves of G.biloba were obviously higher than those in sunny leaves,but the peak value of NPQ of shade leaves presented earlier and higher,suggesting that the shade leaves might have more sensitive hot dissipation mechanism.Comparing to sunny leaves,shade leaves had the higher PSⅡ potential activity and inner light energy translation efficiency.[Conclusion] This study had provided theoretical basis for the protection of G.biloba resources. 展开更多
关键词 Ginkgo biloba Chlorophyll fluorescence Sunny leaves Shade leaves Daily change Ten-day change
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Study on Absorptive Capacity to Formaldehyde and Physiological and Biochemical Changes of Scindapsus aureus Based on the Regulation of LaCl_3 被引量:2
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作者 闫生荣 花海蓉 +1 位作者 张跃群 周青 《Agricultural Science & Technology》 CAS 2015年第12期2596-2599,共4页
[Objective] This study was to analyze LaCl3 sprayed onto Scindapsus au- reus on Chlorophyll content and plasmamembrane permeability of leaves of Scindap- sus aureus, in order to determinate a suitable dosage of LaCl3.... [Objective] This study was to analyze LaCl3 sprayed onto Scindapsus au- reus on Chlorophyll content and plasmamembrane permeability of leaves of Scindap- sus aureus, in order to determinate a suitable dosage of LaCl3. [Method] With Scindapsus aureus as the test subject, 110 households of 20 communities in the New District of Nantong were selected to investigate formaldehyde concentration in indoor air; and effect of LaCl3 on absorptive capacity to formaldehyde of Scindapsus aureus was studied through fumigating in laboratory. Simultaneously, its physiological and biochemical mechanism of formaldehyde resistance was studied. [Result] The re- sults showed that formaldehyde pollution of indoor air was serious in the New District of Nantong, and the degree of pollution was related to the time after decoration. The suitable concentration of LaCl3 for Scindapsus aureus was 20 mg/L. The ability to ab- sorb formaldehyde of Scindapsus aureus, which was calculated by per unit leaf area, was enhanced after spraying the suitable concentration of LaCl3 by 19.75%. When Scindapsus aureus was stressed by formaldehyde, chlorophyll content decreased by 39.87%, membrane permeability and cumulative MDA amount increased by 8.17% and 56.92%, respectively, and POD activity increased by 11.32%. However, by com- paring the group pre-sprayed with LaCl3 and the group not sprayed with LaCl3 under formaldehyde stress, chlorophyll content of Scindapsus aureus reduced lessly, mem- brane permeability and MDA both increased lessly, while POD activity increased more. [Conclusion] This study provides a new thinking direction for broadening of rare earth application and control measures of indoor air pollution. 展开更多
关键词 LACL3 Scindapsus aureus Absorptive capacity to formaldehyde Physio- logical and biochemical mechanism
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A new record from China of epiphytic marine algae,Acrochaete leptochaete(Chaetophoraceae,Chlorophyta)with its primary experimental biology 被引量:1
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作者 邓蕴彦 汤晓荣 +1 位作者 丁兰平 连绍兴 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2011年第2期350-355,共6页
Acrochaete leptochaete, a species in Chaetophoraceae (Chlorophyta), was observed during our recent laboratory culture of the macroalgae Chaetornorpha that was originally collected from an intertidal pool in Rongchen... Acrochaete leptochaete, a species in Chaetophoraceae (Chlorophyta), was observed during our recent laboratory culture of the macroalgae Chaetornorpha that was originally collected from an intertidal pool in Rongcheng, Shandong Province, China. This is the first record of this species in China. Its morphology, taxonomy, and distribution were introduced and discussed in detail. Isolated culture experiments at different temperatures (9-29℃) and light intensities (36-108 μmol/m^2.s) were also carried out. The culture-based observations have extended our knowledge of growth morphology and general biology of the species. 展开更多
关键词 Acroehaete leptochaete China GROWTH MORPHOLOGY new record TAXONOMY
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ON EVOLUTION OF MAN-LAND SYSTEM IN OASIS-Taking Minqin Basin as a Case 被引量:2
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作者 MIAOLei-lei CAIWei-bin 《Chinese Geographical Science》 SCIE CSCD 2002年第3期199-205,共7页
Human beings have had a tremendous i mpact on natural ecosystems and are n ow the principal power to change the biosphere.It is logical t hat we should pay close attention to t he interaction between human system s an... Human beings have had a tremendous i mpact on natural ecosystems and are n ow the principal power to change the biosphere.It is logical t hat we should pay close attention to t he interaction between human system s and environ-mental systems.Taking Minqin basin,Gansu Province,as a case,this paper focuses on the evolution of regional physi-cal environments and the cultural sy stems by which people maintain their relationships with those environme nts.This pa-per presents the conceptual framewo rk for the man-land system.Expectin g to accelerate the regional sustain able develop-ment,it also analyses the evolution ary mechanism of regional man-land s ystem.On the basis of reviewing and a nalyzing the evolution of man-land system in Minqin basin,the paper also brings fo rward an adjusting mode for the studi ed area,which consists of three aspects:to b uild up a concept that economic growt h must harmonize with environmental quality’s and land productivity’s improvemen t;to make a whole planning and management in the drainage area;and to push for-ward the technique of water-saving i rrigation and establish water-saving agricultural system.It’s meanin gful for resource exploitation and sustainable development of Chinese northwestern arid area,which is represented by Minqin basin,by under-standing what great changes the basin has experienced and is experiencin g at the global background,and studying its time order and territorial structure,th e system’s character and law of evolu tion,trend and the regulating ways t o improve man-land relationship. 展开更多
关键词 minqin basin man-land system man-land relationship OASIS
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Chlorophyll-a Fluorescence in Ecology: Theoretical Considerations and Examples around Marine Macroalgae
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作者 Vinicius Peruzzi de Oliveira Nuno Tavares Martins +1 位作者 Yocie Yoneshigue-Valentin Alex Enrich-Prast 《Journal of Environmental Science and Engineering(A)》 2013年第10期606-616,共11页
Over the last decades, the usage of PAM (pulse amplitude modulated) fluorometers for assessment of chlorophyll-a fluorescence variations became widely applied on marine macroalgae physiology and ecophysiology resear... Over the last decades, the usage of PAM (pulse amplitude modulated) fluorometers for assessment of chlorophyll-a fluorescence variations became widely applied on marine macroalgae physiology and ecophysiology researches. Due to the increased use of these methods, a large number of studies, mainly relating to macroalgae ecology and physiology were worldwide reported. In this context, it was also created a mismatch of concepts about fluorescence of the chlorophyll-a and its application. Under this background, this study compile and summarize the state of the art knowledge regarding to the chlorophyll fluorescence, contextualizing the use of the PAM method with the main factors regulating photosynthesis (light, temperature, salinity nitrogen and phosphorus) in marine macroalgae. Moreover, this study also references the most used terms and shows some examples found in literature about the applicability of fluorescence parameters. The herein findings and the discussed examples, helps to emphasize the importance of fluorescence usage, that highlights the understanding of photosynthetic responses in macroalgal physiology and ecology. 展开更多
关键词 FLUOROMETRY PAM quenching analysis stress.
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Allelopathic Effects of Eichhornia crassipes on the Growth of Microcystis aeruginosa 被引量:2
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作者 Xiaoxia Wu Zhenye Zhang Dingli Chen Junsong Zhang Wenbing Yang Yingen Jin 《Journal of Agricultural Science and Technology(A)》 2012年第12期1400-1406,共7页
Algal blooms caused by eutrophication in fresh water are one of the major environmental problems in the world. Using biological methods to control algal growth, especially based on allelopathic inhibitory effects of a... Algal blooms caused by eutrophication in fresh water are one of the major environmental problems in the world. Using biological methods to control algal growth, especially based on allelopathic inhibitory effects of aquatic macrophytes on phytoplankton growth, have been received world-wide attention. In this study, the allelopathic activity of the invasive macrophyte, Eichhornia crassipes (water hyacinth), on blue-green algae, Microcystis aeruginosa (PCC7806) was investigated using coexistence assay. Our results showed that water hyacinth had disparate effects on the growth ofM~ aeruginosa (PCC7806) under different initial algal densities. Under lower initial algal density (OD650 = 0.10 and OD650 = 0.05), the algal growth was significantly inhibited by water hyacinth (inhibition ratio was 95.6% and 97.3%, respectively). While it was stimulated at higher initial algal densities (OD650 = 0.20). Water hyacinth inhibited the growth of algae mainly through its root system. Culture water from water hyacinth and aqueous methanol extracts from dry roots samples also showed inhibition effects on algal growth. The inhibition effects increased as the increase of crude extract concentration, suggest that water hyacinth may excrete inhibitory substances from root system and show allelopathic inhibitory potential to the growth ofM. aeruginosa. 展开更多
关键词 Eichhornia crassipes allelopathic effects water blooms Microcystis aeruginosa.
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Greenways and Their Functions to Eco-Cities
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作者 Liu Yunguo Huang Zhe Guang ming Li Xin 《Ecological Economy》 2005年第4期6-12,共7页
Greenways can be considered as linear open spaces along natural or artificial linear features such as rivers. shorelines, ridgelines, railroads, canals or roads. They are planned, designed, and managed to connect and ... Greenways can be considered as linear open spaces along natural or artificial linear features such as rivers. shorelines, ridgelines, railroads, canals or roads. They are planned, designed, and managed to connect and protect ecological, scenic, recreational, historic, and cultural resources, The archetype of greenways could go back to the landscape axes and boulevards of Europe in the 18^th century and later tire parkways of USA in the late 19^th century . As a means of urban ecological planning, greenway planning is getting more and more important to sustainable development in urban areas and has become a worldwide activity or a movement. This paper reviews the evolution of greenways and identifies it into three distinct stages or “generations ”. introduces a general methodology of greenway planning, and expounds the functions of greenways to ecotitles. At the end. this paper emphasizes that it is significant to enhance the research and implementation of greenway planning in our country in the case that urbanization will be developing qulckly in the next decades. 展开更多
关键词 GREENWAYS greenwayplanning eco-city greenway network
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Implementing Virtual Reality Environment for Bicycling in an Eco-Campus Application
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作者 Riri Fitri Sari Anna Gianty Citra Parameswari Prima Dewi Purnamasari, Alfa Shefildi Manaf Bayu Ananto Burhan Adi Wicaksana Kalamullah Ramli 《Computer Technology and Application》 2011年第2期158-164,共7页
This paper reviews virtual reality interface, application and design concept in relation with our experience in implementing a virtual bicycling environment application of the University of Indonesia Green Eco-campus.... This paper reviews virtual reality interface, application and design concept in relation with our experience in implementing a virtual bicycling environment application of the University of Indonesia Green Eco-campus. The implementation of the Virtual Reality VR used 3D-Games Studio with Lite-C software. The authors also experiment with the use of a VR device, i.e. 3D E-Dimensional wireless goggle to improve the feel of presence for the user of our application. The authors created the original elements of UI campus environment, such as, buildings, trees, campus buses, cars, and bike tracks, as well as obstacle in the pathways into 3D virtual shape that resembles the real UI campus environment. The bicycle movement, camera perceptions, and object collision handling have also been implemented. Our application is subsequently tested by the users in terms of the general object condition, user's respond to the virtual reality environment and the future development. Some result of implementing the same environment using Alice has also been shown. 展开更多
关键词 Virtual reality ENVIRONMENT eco-campus 3D games studio Alice.
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Aquatic Toxicities of Three Aryloxyphenoxypropanoic Acid Herbicides on Cyanobacterium Microcystis aeruginosa
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作者 Jing Ye Zhihao Qiu Yuping Du Aihua Shang 《Journal of Environmental Science and Engineering(B)》 2014年第2期79-86,共8页
Pesticides will be released into aquatic systems after application in agriculture or industry. AOPPs (aryloxyphenoxypropanoic acids) herbicides, including fenoxaprop, quizalofop-P-ethyl and haloxyfop-methyl, can pos... Pesticides will be released into aquatic systems after application in agriculture or industry. AOPPs (aryloxyphenoxypropanoic acids) herbicides, including fenoxaprop, quizalofop-P-ethyl and haloxyfop-methyl, can pose aquatic toxicity on cyanobacterium M. aeruginosa (Microcystis aeruginosa). The inhibition percentages of the biomass of M. aeruginosa exposure to 10 mg'L-I fenoxaprop, quizalofop-P-ethyl and haloxyfop-methyl on day 7 were 23.13%, 7.55%, and 7.56%, respectively. Protein content was also inhibited by the three AOPPs to fenoxaprop is the most toxic, followed by quizalofop-P-ethyl varying degrees. The growth and protein content results showed that and haloxyfop-methyl. It indicates that both the biomass and the protein content can be served as an indicator for evaluating the toxicity of the three chemicals. Growth rates of M. aeruginosa exposure to fenoxaprop are also the most significantly different compared to the control, which means that fenoxaprop is the most toxic among the three compounds. Results from this study may provide insights for evaluation of environmental risks of AOPPs. In addition, such insights will be helpful for guiding the application of AOPPs in agriculture. 展开更多
关键词 Herbicide AOPPs blue-green algae toxicology.
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Soil Microbial Population Dynamics along a Chronosequence of Moist Evergreen Broad-leaved Forest Succession in Southwestern China 被引量:10
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作者 ZHU Wanze CAI Xiaohu +5 位作者 LIU Xingliang WANG Jinxi CHENG Song ZHANG Xiuyan LI Dengyu LI Maihe 《Journal of Mountain Science》 SCIE CSCD 2010年第4期327-338,共12页
Little is known about whether soil microbial population dynamics are correlated with forest succession.To test the hypotheses that(1) soil microbial composition changes over successional stages,and(2) soil microbial d... Little is known about whether soil microbial population dynamics are correlated with forest succession.To test the hypotheses that(1) soil microbial composition changes over successional stages,and(2) soil microbial diversity is positively correlated with plant species diversity,we determined the soil microbial populations,community composition,and microflora diversity in evergreen broad-leaved forests along a chronosequence of vegetation succession from 5 to 300 years in southwestern China.The soil microbial community was mainly composed of bacteria(87.1-98.7% of the total microorganisms and 10 genera identified),fungi(0.3-4.0%,7 genera),and actinomycetes(2.1-9.1%,8 species and 1 genus).There were significant differences in soil microbial populations among different successional stages and within the four seasons.The seasonal variations of the soil microbial community may be associated with the seasonal changes in environmental conditions.The changes in soil microbial diversity(Shannon-Wiener index) with successional time followed one-humped,convex curves peaked at-100 years since restoration,which is identical with the trends of the aboveground plant diversity.Higher plant diversity resulting in enhanced nutrient flow and root exudation may contribute to positive relationships between the soil microbial diversity and plant diversity.Hence,decreases in soil microbial diversity in the late-successional stages appear to be related to the net loss in species richness that occurs after 100 years since restoration.Our findings confirm the intermediate disturbance hypothesis that suggests diversity peaks at midsuccessional stages. 展开更多
关键词 ACTINOMYCETES Bacteria Fungi Microbial diversity Moist evergreen broad-leavedforest Seasonal dynamics
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父亲的秋天
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作者 王树久 《唐山文学》 2019年第1期119-122,共4页
将近傍晚的时候,我走进了老家的院落。太阳的余晖静静地跑上了村西的山丘,又悄悄地攀上院外的杨柳,最后穿过枝枝叶叶的罅隙,从不同的各处小心翼翼地跳进了院子。踢踢锃亮的锹头,摸摸光滑的镐把,试试镰刀的锋利,最后才亲亲热热地拥抱着... 将近傍晚的时候,我走进了老家的院落。太阳的余晖静静地跑上了村西的山丘,又悄悄地攀上院外的杨柳,最后穿过枝枝叶叶的罅隙,从不同的各处小心翼翼地跳进了院子。踢踢锃亮的锹头,摸摸光滑的镐把,试试镰刀的锋利,最后才亲亲热热地拥抱着菜园子里翠生生的萝卜和白菜。耄耋之年的父亲弓着身子站在菜园子边,正痴痴地望着菜地。看见我进院时,身体有些吃力地挪动了两步。我看到父亲用颤颤的目光缓缓地从菜园里端起绿生生的喜悦。 展开更多
关键词 身体 目光 菜园子 院落 父亲 枝枝叶叶 罅隙 菜园 绿生生
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An Ecological Compensation Mechanism based on the Green Productive Area of Cities
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作者 YANG Yuanchuan ZHANG Yukun +3 位作者 ZHENG Jie HUANG Si ZHAO Man HONG Long 《Journal of Resources and Ecology》 CSCD 2022年第3期382-393,共12页
China’s urban expansion,food security,and energy transition are in a critical situation.One solution is to tap into the green production potential of the built urban environment and explore new ways to save land spac... China’s urban expansion,food security,and energy transition are in a critical situation.One solution is to tap into the green production potential of the built urban environment and explore new ways to save land space and alleviate ecological pressure through food and solar energy production.This paper differs from previous ecological compensation studies,which mostly focus on key ecological functional areas or fiscal compensation mechanisms,in that it innovatively establishes an ecological compensation mechanism within the urban space.In this paper,we propose the"green productive area"of cities as a way to measure the ecological carrying capacity improvement potential of cities from the perspective of urban ecology,and it is based on converting the green resource income of cities into the ecological footprint area they could save under the same conditions.First,a typological approach was used to establish a compensation strategy for green production.Second,a spatial inventory was taken of all elements of the built environment and an analysis of their green production potential was carried out.Finally,it was necessary to establish a unified accounting standard for the ecological land saving benefits of different green production options,which could be converted into green productive land area indicators.In the case of Xuefu Street in Nankai District,Tianjin,the available rooftops and idle land were used for green production,which supplemented the ecological carrying capacity provided by the natural land occupied by 12%of the buildings in the district. 展开更多
关键词 ecological compensation green productive area land-saving benefits urban agriculture solar energy potential
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A Preliminary Study on Effects of Four Urban Greenbelt Types on Human Comfort in Shenzhen,P.R.China 被引量:2
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作者 SUN Bing WU Tuliang +1 位作者 CHEN Yong LIAO Shaobo 《Chinese Forestry Science and Technology》 2006年第2期84-92,共9页
Four urban greenbelt types including roadside greenbelt, resident-area greenbelt, landscape forest, and forest park, were simultaneously investigated in Shenzhen, China, in such measures as air temperature, air humidi... Four urban greenbelt types including roadside greenbelt, resident-area greenbelt, landscape forest, and forest park, were simultaneously investigated in Shenzhen, China, in such measures as air temperature, air humidity, wind speed, air anion ratio, and inhalabal particle concentration, which were strongly related with pleasing feeling of human body. The results show that the average air temperature in both forest park and landscape forest is much closer to the pleasing feeling of human body temperature than that of the rest two greenbelts, where it is 1.782 ℃ and 0.837℃ in forest park as well as 3.084 ℃ and 2.140 ℃ in landscape forest less than that of roadside and resident-area greenbelts, respectively. In terms of mean air humidity, forest park and landscape forest are 3.034% and 7.563% higher than that of roadside greenbelt, and 1.205% and 5.734% higher than that of resident-area greenbelt, respectively, implying a sound humidity feeling of human comfort in the former two types. The air cleanness holds a descending rank as forest park, landscape forest, resident-area greenbelt, and roadside greenbelt, whereas the rank in inhalable particle concentration is completely reverse. In general, landscape forest and forest park that mainly consist of trees have a comparatively higher feeling of human comfort whereas roadside and resident-area greenbelts fluctuate irregularly to some extent for the measures studied. The four greenbelt types investigated could be summarized in human comfort as the following descending rank, forest park, landscape forest, resident-area greenbelt, and roadside greenbelt. 展开更多
关键词 urban greenbelt human comfort SHENZHEN China
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Assessing the dynamics of chromophoric dissolved organic matter(CDOM) in the Yellow Sea and the East China Sea in autumn by EEMs-PARAFAC 被引量:6
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作者 YAN LiHong SU RongGuo +2 位作者 ZHANG ChuanSong SHI XiaoYong ZHU ChenJian 《Science China Chemistry》 SCIE EI CAS 2012年第12期2595-2609,共15页
In this study we have successfully characterized the fluorescent components of chromophoric dissolved organic matter(CDOM) in the Yellow Sea and the East China Sea in autumn using excitation-emission matrix fluorescen... In this study we have successfully characterized the fluorescent components of chromophoric dissolved organic matter(CDOM) in the Yellow Sea and the East China Sea in autumn using excitation-emission matrix fluorescence spectroscopy(EEMs) combined with parallel factor analysis(PARAFAC).PARAFAC aids the characterization of fluorescence CDOM by decomposing the fluorescence matrices into individual components.Four humic-like components(C1,C2,C3,and C4),one marine biological production component(C6),and two protein-like components(C5 and C7) were identified by PARAFAC.We researched the distributional patterns of fluorescence intensity,regression analyses between salinity,chlorophyll a concentration and fluorescence intensities of individual fluorophore,and regression analysis between salinity and fluorescence intensities percent of individual fluorophore.The results revealed that C2 and C4 showed conservative mixing behavior,while C1 and C3 possessed conservative mixing behavior in high salinity region and additional behavior in low and middle salinity region,which were considered to be derived from riverine and degradation of organic matter from resuspended and/or sinking particles and show non-conservative mixing behavior.In addition to riverine sources,the tryptophan-like C5 may receive widespread addition(likely from photo-degradation or biodegradation),while the most likely sources for the one marine humic-like C6 and tyrosine-like C7 were biological activity and microbial processing of plankton-derived CDOM,which were suggested to be of autochthonous origin and biologically labile.The application of EEM-PARAFAC modeling presents a unique opportunity to observe compositional changes,different mixing behavior and temporal variability in CDOM in the Yellow Sea and the East China Sea. 展开更多
关键词 chromophoric dissolved organic matter fluorescence excitation emission Matrix spectroscopy PARAFAC model the Yellow Sea the East China Sea Yangtze Estuary conservative mixing behavior non-conservative mixing behavior
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Multi-sectoral Participatory Urban Forestry Development in Philippines Metropolitan Manila
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作者 DONOSO Leonito Acosta 《Chinese Forestry Science and Technology》 2005年第1期74-84,共11页
Metropolitan Manila, the capital region of the Philippines, initiated urban forestry projects toshowcase its environmental benefits. Metro Manila was once a part of a tropical mangrove forest dominatedby small trees l... Metropolitan Manila, the capital region of the Philippines, initiated urban forestry projects toshowcase its environmental benefits. Metro Manila was once a part of a tropical mangrove forest dominatedby small trees locally called nilad (Scyphiphora hydrophyllaceae). The fast-paced urbanization transformedthe original ecosystem into a bustling metropolis subjected to environmental decay. The establishment ofurban forestry is one of the interventions sought by the government to mitigate the environmental conditions.Thus, the concept of participatory urban forestry was formalized in 1988 by the national government.However, it was during the early years of the 1970s that the idea of exerting collective effort in greeningMetro Manila started through the Green Revolution, with the primary motive of uplifting the economiccondition of the people rather than on ecological enhancement. The project was forced on the people to plantvegetables and fruit trees with less emphasis on forest trees species. Although the project was not successful,the government realized that the citizenry could be a great partner for a collective worthwhile undertaking. 展开更多
关键词 urban forestry environmental benefit PARTICIPATORY GREENING ecological enhancement treesspecies nilad (Scyphiphora hydrophyllaceae) the Philippines
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