Spatiotemporal Evolution of Urban Heat Islands and Optimization of Spatial Network Construction in the Central Urban Area of Fuzhou City, China

Although accelerated urbanization has led to economic prosperity,it has also resulted in urban heat island effects.Therefore,identifying methods of using limited urban spaces to alleviate heat islands has become an urgent issue.In this study,we assessed the spatiotemporal evolution of urban heat islands within the central urban area of Fuzhou City,China from 2010 to 2019.This assessment was based on a morphological spatial pattern analysis(MSPA)model and an urban thermal environment spatial network constructed us-ing the minimum cumulative resistance(MCR)model.Optimization measures for the spatial network were proposed to provide a theor-etical basis for alleviating urban heat islands.The results show that the heat island area within the study area gradually increased while that of urban cold island area gradually decreased.The core area was the largest of the urban heat island patch landscape elements with a significant impact on other landscape elements,and represented an important factor underlying urban heat island network stability.The thermal environment network revealed a total of 197 thermal environment corridors and 93 heat island sources.These locations were then optimized according to the current land use,which maximized the potential of 1599.83 ha.Optimization based on current land use led to an increase in climate resilience,with effective measures showing reduction in thermal environment spatial network structure and function,contributing to the mitigation of urban heat island.These findings support the use of current land use patterns during urban heat island mitigation measure planning,thus providing an important reference basis for alleviating urban heat island effects.

Spatio-temporal Evolution Characteristics and Driving Forces of Winter Urban Heat Island:A Case Study of Rapid Urbanization Area of Fuzhou City,China

Under the influence of anthropogenic and climate change,the problems caused by urban heat island(UHI)has become increasingly prominent.In order to promote urban sustainable development and improve the quality of human settlements,it is significant for exploring the evolution characteristics of urban thermal environment and analyzing its driving forces.Taking the Landsat series images as the basic data sources,the winter land surface temperature(LST)of the rapid urbanization area of Fuzhou City in China was quantitatively retrieved from 2001 to 2021.Combing comprehensively the standard deviation ellipse model,profile analysis and GeoDetector model,the spatio-temporal evolution characteristics and influencing factors of the winter urban thermal environment were systematically analyzed.The results showed that the winter LST presented an increasing trend in the study area during 2001–2021,and the winter LST of the central urban regions was significantly higher than the suburbs.There was a strong UHI effect from 2001 to 2021with an expansion trend from the central urban regions to the suburbs and coastal areas in space scale.The LST of green lands and wetlands are significantly lower than croplands,artificial surface and unvegetated lands.Vegetation and water bodies had a significant mitigation effect on UHI,especially in the micro-scale.The winter UHI had been jointly driven by the underlying surface and socio-economic factors in a nonlinear or two-factor interactive enhancement mode,and socio-economic factors had played a leading role.This research could provide data support and decision-making references for rationally planning urban layout and promoting sustainable urban development.

Problems and Development Suggestions of Nature Education in Jiangxi Province

The forest coverage rate of Jiangxi Province ranks second in China.It has rich natural resources,a long history of ancient color culture and rich red culture.In the development of nature education,Jiangxi Province has great potential and advantages.This paper introduces the development conditions of nature education in Jiangxi Province,summarizes the problems existing in the development of nature education in Jiangxi Province from the aspects of the types of nature education and the construction of nature education base,such as simple content and single form,imperfect infrastructure and lack of professionals,and puts forward some suggestions on the development of nature education in Jiangxi Province.

Research on Jiangxi’s International Image Based on NOW Corpus

This paper retrieves and classifies reports on Jiangxi from 2010 to June 2024 in the NOW corpus,analyzing the status quo of Jiangxi’s international image portrayed by English news media through word frequency and collocates.It is found that international attention towards Jiangxi is closely related to the holding of the World Conference on VR Industry in Nanchang,and there are apparent regional disparities.With a severe labeling of its mining industry,Jiangxi’s international image lacks independence and distinctiveness,resulting in a relatively monotonous overall image.Based on this,relevant suggestions for further enhancing Jiangxi’s international image are proposed.

A New Species of Jiangxialepis(Galeaspida)from the Lower Telychian(Silurian)of Jiangxi and its Biostratigraphic Significance

A new species of Shuyuidae(Eugaleaspiformes,Galeaspida),Jiangxialepis jiujiangensis sp.nov.,is described from the lower Telychian(Llandovery,Silurian)Qingshui Formation in Jiujiang,Jiangxi Province,China.The new species differs from the type species J.retrospina from Wuhan,Hubei Province in its sharp and posteriorly positioned median dorsal spine and narrow spine-shaped inner cornual processes.The Silurian strata in Xiushui–Wuning area has provided a standard framework for the correlation of Silurian shallow marine red beds in South China.Thus,the finding of J.jiujiangensis from the Silurian Lower Red Beds(LRBs)in Jiangxi Province bears very important biostratigraphic significance.It can directly compare to Jiangxialepis retrospina from the Fentou Formation in Wuhan,Hubei Province in the genus level.This indicates that the age of the fish-bearing strata in Wuhan is most likely to be the early Telychian rather than middle Telychian as previously assumed.

Thinking and Research on County-level Territorial Spatial Plans in the Territorial Spatial Plan System:A Case Study of Jiangxi Province

The establishment of the territorial spatial plan system is an important space reform act to meet the new era in China.The reform of territorial spatial plans according to classification is in line with the characteristics of China’s current territorial spatial administration and urban development.At present,China’s provincial and municipal territorial spatial plans have been publicized,and county-level territorial spatial plans are being approved one after another,while the compilation of township-level territorial spatial plans is being carried out in an orderly manner.In this paper,based on the historical background of the establishment of territorial spatial plan system integrating“multiple plans”,the background of territorial spatial plans and the important role of county-level territorial spatial plans were first elaborated,and then the progress of the compilation of county-level territorial spatial plans in Jiangxi Province was sorted out.Finally,the problems existing in the compilation were discussed,and corresponding suggestions were put forward to provide a certain reference for the construction of a scientific and reasonable territorial spatial plan system.

Prediction of Total Output Value of Construction Industry in Jiangxi Province Based on Grey Prediction Model

In order to realize the accurate prediction of the total output value of construction industry in the future,the grey prediction model is used to compare the measured value with the predicted value from 2012 to 2021,and based on the existing data,the total output value of construction industry in Jiangxi Province in the next five years is predicted.The results show that the grey prediction model has a good prediction effect,and the error between the predicted value and the measured value is within 14%,which provides a basis for policy adjustment and resource optimization.

An Updated Checklist of the Birds of Jiangxi,China

Complete checklist records are essential to understand regional bird diversity.We update the checklist of the bird species of Jiangxi,China based on numerous reported documents.The updated checklist of the bird species of Jiangxi shows that there are 536 bird species in Jiangxi,which belong to 21 orders,74 families,246 genera.And 48.7% of them are Passeriformes species and 12.3% are Charadriiformes species.Fifty species are classified as threatened.Fourteen of these species are grade I nationally protected wild animals,and 72 species are grade II nationally protected wild animals.In addition,fauna analyses indicate that the Palearctic realm（47.7%） is dominant.As for distribution type,the Oriental type is dominant.Considering the fauna of resident birds,the Oriental realm is dominant.Additionally,the distribution of several species was revised in the checklist.

Risk Evaluation of Monochamus alternatus Hope in Jiangxi Province

[Objective]The study aimed to further strengthen the integrated management of Monochamus alternatus Hope and effectively control its spread and injury in pine forests in Jiangxi Province.[Method] By using the pest risk analysis method,the qualitative and quantitative analysis on risk of M.alternatus in Jiangxi Province was carried out.[Result] The qualitative and quantitative analysis result showed that its risk value R was 1.89,thus confirming that M.alternatus was close to high dangerous forest pest in Jiangxi Province.[Conclusion] The study provided the reference for making the policy decision for control of M.alternatus.

A New Oviraptorid Dinosaur (Theropoda: Oviraptorosauria) from the Late Cretaceous of Jiangxi Province, Southern China

A new oviraptorid dinosaur Jiangxisaurus ganzhouensis gen. et sp. nov., is erected based on a partial skeleton from the Upper Cretaceous Nanxiong Formation of Ganzhou City, Jiangxi Province. The new taxon differs from other oviraptorids in the weakly downturned rostrum of the lower jaw, much-elongated mandible with a height-to-length ratio being about 20% and the length ratio of radius to humerus of about 0.70. This species not only adds a new member to oviraptorid dinosaurs, but also provides more information about oviraptorid paleogeographical distribution in southern China.

Influential Factors of House-purchasing Intention in Work construction Sites among Migrant Workers with a Case of Investigations on 203 Migrant Workers from Jiangxi Province

The research selected 13 factors from individual and family characters, construction site characters and work characters and analyzed the influences on the willingness of purchasing houses on construction sites with Logistic regression mod- el. The results showed that gender, age differences, personality, willingness on fami- ly land conversion, management of enterprises on construction sites, relatives and friends on construction lands, and Job satisfaction were approved by significant testing, but marital status, annual household income, the rate of migrant worker in a household, transportation in work city, and corporate reputation were not approved by significant testing.

猪繁殖与呼吸综合征病毒流行株Jiangxi-3的全基因组序列分析

通过RT-PCR分段扩增PRRSV流行株Jiangxi-3的基因组,参照VR2332序列,根据各片段之间相重叠的区域,将扩增片段的序列依次拼接获得Jiangxi-3完整的全基因组,并通过DNAStar软件对其进行分析。结果表明:Jiangxi-3的Nsp2推导氨基酸发生30个氨基酸的不连续缺失,与HB-1(sh)/2002相比,Nsp2推导的第480位氨基酸由D突变为E,缺失的位置为第481位氨基酸和532～560位氨基酸;Jiangxi-3与2006年Tian Kegong等从江西"高热病"病死猪体内分离的毒株JXA1的各个结构蛋白阅读框的氨基酸同源性为98.0%～100%;Jiangxi-3与HB-1(sh)/2002、VR2332、RespPRRSMLV的Nsp2推导的氨基酸同源性分别为94.7%、77.8%、77.7%,由遗传系统发育树可知与2006年以前分离的毒株相比,Jiangxi-3与HB-1(sh)/2002的亲缘关系较近。说明Jiangxi-3和JXA1极可能由同一毒株HB-1(sh)/2002演化而来。

猪繁殖与呼吸障碍综合征病毒Nsp2基因缺失株Jiangxi-3灭活疫苗免疫效果评价

将猪繁殖与呼吸障碍综合征病毒(PRRSV)Nsp2基因缺失株Jiangxi-3的第9代病毒(Jiangxi-3F9)按常规方法制成油佐剂灭活疫苗,经肌肉注射免疫PRRSV和猪圆环病毒(PCV2)抗原与抗体均为阴性的60日龄健康猪,免疫组分别于初次免疫第21和28天、二次免疫第28天(即初次免疫第28天加强免疫1次)用200LD50的Jiangxi-3 F9进行攻毒,同时各组均设立对照组。通过试验动物体温变化、临床症状、血清PRRS抗体和抗原定期检测结果评价灭活疫苗的免疫效果。结果表明,初次免疫第21和28天免疫组攻毒后体温仍然明显升高,而二次免疫第28天免疫组攻毒后体温升高不明显,最高体温约40℃。初次免疫21-28 d免疫组特异性抗体水平持续升高,初次免疫第21天与第28天抗体水平差异显著(0.01<P<0.05);二次免疫后免疫组抗体水平仍持续升高,第28天可达3.105±0.125,二次免疫第28天与初次免疫28天抗体水平差异显著(0.01<P<0.05)。初次免疫第21天和第28天免疫组攻毒后仍能在血清中检出PRRSV抗原,仍表现不同程度的临床症状,而二免第28天的免疫组攻毒后其PRRSV抗原检出率、发病率、死亡率均为0。表明初次免疫第28天加强免疫一次比免疫一次效果好。

猪繁殖与呼吸障碍综合征病毒Nsp2基因缺失株Jiangxi-3毒力的进一步研究

通过Reed-Muench法检测从江西发生持续高热的病猪体内分离的猪繁殖与呼吸综合征病毒(PRRSV)Nsp2基因缺失株Jiangxi-3第9代(Jiangxi-3F9)的病毒滴度;将此毒株接种于PRRSV和猪圆环病毒2型(PCV2)抗原与抗体均为阴性的60日龄健康猪进行猪半数致死量(LD50)的测定,并且对LD50试验中存活下来的试验猪再次进行较大剂量的攻毒试验,另将病毒接种于PRRSV和PCV2抗原和抗体均为阴性的6月龄健康猪,对所有攻毒试验猪通过体温检测、临床症状观察、RT-PCR、ELISA等方法进一步研究Jiangxi-3F9的毒力。结果表明:Jiangxi-3F9的病毒滴度为105.25TCID50·mL-1,Jiangxi-3F9病毒的LD50为102.·2mL-1。动物试验各项检测结果说明Jiangxi-3F9毒力强。

Revelation on the Drainage Systems of Ancient Villages in Jiangxi Province

Based on rural drainage problems, the research analyzed traditional water culture in ancient vil ages in Jiangxi, as wel as flood control theory, and proposed specific theories and measures for drainage system improvement and construction in order to seek proper rural drainage system and promote rural sustainable develop-ment.

Tapping Advantages and Expanding International and Domestic Networks for Further Integrating Jiangxi with the Rest of the World——Thriving Foreign Related Work in Jiangxi Province

"…enable Jiangxi to become the example of ecological civilization and pacesetter of building beautiful China,and realize the dream of a prosperous,harmonious and beautiful Jiangxi through our earnest efforts."Recent years have witnessed vigorous efforts made by the Provincial Foreign Affairs and Overseas Chinese

Jurassic Intra-plate Basaltic Magmatism in Southeast China:Evidence from Geological and Geochemical Characteristics of the Chebu Gabbroite in Southern Jiangxi Province

Geochemical and isotopic investigations have been carded out on the Chebu gabbroite in southern Jiangxi Province, southeast China and these results are compared with gabbro bodies along the coast of Fujian Province in order to understand their magma sources and tectonic implications. The Chebu intrusion formed at the beginning of the Middle Jurassic （172~4.3 Ma）. These rocks are Ti-rich and Al-poor in major elements, characterized by strong enrichment in large-ion lithophile elements （LILE） and moderate enrichment in high field strength elements （HFSE） and light rare-earth elements CLREE）, without pronounced Nb or Ta anomalies. Age-correlated Sr-Nd isotope ratios show moderately high ranges of （^87Sr/^86Sr）i from 0.7065 to 0.7086 and 0.5124 to 0.5125 of （^143Nd/^144Nd）i. The geochemical characteristics of the Chebu gabbroite suggest that it is notably different from island-arc basalt and similar to intra-plate basaltic rocks. By combining interpretations of its geological and geochemical characteristics and the regional geological development history, the Chebu gabbroitic intrusion is thought to be the product of asthenosphere upwelling and rapid lithosphere extension during a transition of tectonic systems in southeast China. The tectonic environment and source characteristics of the intrusion are different from Cretaceous gabbro bodies along the coast of Fujian Province, The former formed in a tectonic environment of rapid intra-plate lithospheric extension and the source characteristics were of a weakly enriched primitive mantle, whereas the latter originated mainly in a volcanic-magmatic arc extensional tectonic environment and the nature of the source was an enriched mantle with more subduct subducted components.

Geology, Geochemistry and Origin of the Hongshan Porphyry-Cryptoexplosive Breccia Type Copper Deposit in Huichang County, Jiangxi Prvince

The Hongshan porphyry-cryptoexplosive breccia type copper deposit occurs in a metamorphic rock series of the Mesoproterozoic Zhongcun Group. Orebodies are distributed inside and outside porphyry-cryptoexplosive breccia pipes. The deposit involves five ore-forming types, i.e the porphyry type, cryptoexplosive breccia type, contact-zone veinlet-disseminated type, in-pipe fracture-zone filling-replacement type and out-of-pipe fracture-zone filling-replacement type, forming an ore-forming system of “five ore-forming types within a single rock body”. Fluid inclusion and isotope geochemical studies indicate the following: S, Pb, O and Sr were derived from the lower crust, Nd was derived from the continental crust or depleted mantle and rare earth elements (REE) and trace elements have the crustal source characters; fluids consist dominantly of formation water, metamorphic water and ***meteoric water with a part of magmatic mater, heat came from porphyry while the latter originated from partial melting caused by shear heating in the lower crust and upper mantle. According to its origin the deposit is classified as the hypabyssal and near-surface, meso- and hypothermal copper deposit associated with the late Yanshanian porphyry-cryptoexplosive breccia.

Isotopic Chronological Study of the Huangsha-Tieshanlong Quartz Vein-Type Tungsten Deposit and Timescale of Molybdenum Mineralization in Southern Jiangxi Province,China

The Huangsha-Tieshanlong quartz-vein tungsten polymetallic ore deposit, located in the northern Pangushan-Tieshanlong tungsten ore field in eastern Ganxian-Yudu prospecting areas of the Yushan metallogenic belt, is a well-known tungsten deposit in southern Jiangxi province, China. SHRIMP-determined dating of zircons from the Tieshanlong granite yields ages of 168.1±2.1 Ma （n=11, MSWD-1.3）. Rhenium and osmium isotopic dating of molybdenite from the Huangsha quartz-vein tungsten deposit determined by ICP-MS yields a weighted average ages of 153-3 Ma and model ages of 150.22.1 Ma - 155.4-2.3 Ma. The age of the Huangsha tungsten deposit is 10 to 15 Ma later than the Tieshanlong granite, which shows that there might have been another early Late Jurassic magmatic activity between 150 and 160 Ma, a process which is closely related with tungsten mineralization in this area. The Tieshanlong granite, the Hnangsha tungsten deposit and the Pangushan-Tieshanlong ore field were all formed around 150-170 Ma, belonging to products of a Mesozoic second large-scale mineralization. According to the collected molybdenite Re-Os dating results in southern Jiangxi province, the timescale of the associated molybdenum mineralization is 2-6 Ma in the tungsten deposit and the timescale of independent molybdenum mineralization is 1-4 Ma, implying the complexity of tungsten mineralization. Times of molybdenum mineralization are mainly concentrated in the Yanshanian, which includes three stages of 133-135 Ma, 150-162 Ma, and 166-170 Ma, respectively. The 150-162 Ma-stage is in accordance with ages of large-scale WoSn mineralization, which is mainly molybdenum mineralization characterized by associated molybdenum mineralization with development of an even greater-intensity independent molybdenum mineralization. Independent molybdenum mineralization occurred before and after large-scale W-Sn mineralization, which indicates that favorable prospecting period for molybdenum may be in Cretaceous and early late Jurassic.

Precise Dating and Geological Significance of the Caledonian Shangyou Pluton in South Jiangxi Province

The zircon SHRIMP dating age for the Shangyou granites is 464±11 Ma. The geological feature of the pluton is consistent with the isotopic age, which shows that it is a product of Caledonian orogenesis. The Shangyou granites are regarded as peraluminous crust-derived granites to possess the typical geochemical characteristics of calc-alkaline rocks on the active continental margin with enriched Si, K, Al （A/CNK -- 1.11 on average）, HREE, Rb, U, Th and heavily depleted V, Cr, Co, Ni, as well as Ti-Y, Nb-Ta, Zr, Sr, P and Ba, to be commonly corundum normative （av C -- 1.44）. The Shangyou granites with higher 87Sr/86Sr ratios （0.707126-0.712186）, ENd（t） values （-7.29 to -10.22） and （tDM） values （1.52-1.63 Ga）, which are considered to result from partial melting of continental crust metamorphic sedimentary rocks with relatively low of crust maturation degree corresponding to the Middle Proterozoic, to have some possible contributions of mantle-derived components. The Shangyou granites are regarded as post-collision granites, which were formed in a transitional tectonic setting from compression to extension in the Middle Ordovician period after the Yangtze plate was subducted beneath the Cathaysian plate. The Ar-Ar total ages of K-feldspar and biotite are 292.1 Ma and 295.5 Ma respectively, which have recorded information of a late-stage thermal alteration event.