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Policies, Actions and Effects for China's Forestry Response to Global Climate Change

chinese Forestry Science and Technology 2008年第4期7卷 1-7页

作者： LI Zhiyong1 LI Nuyun2 HE Youjun1 wu Shuirong1 1. Research institute of Forestry Policy and Information, chinese academy of Forestry, beijing 100091, P. R. China 2. Office of Response to Climate Change, Energy Conservation and Emission Reduction, State Forestry Administration, beijing 100714, P. R. China

Climate change is a great concern of various countries, the public and science community, and forest plays an important role in mitigating climate change. The paper made a comprehensive analysis regarding the policy selections of China to promote forestry response to the global climate change, and elaborated the concrete actions and achievements in this regard. Policy selections include: 1) Reinforce tree planting and afforestation, increase the forested area and enhance the capacity of carbon sequestration; 2) Improve forest management and the quality of existing stands, and improve the carbon sequestration services provided by forest ecosystem; 3) Strengthen the soil protection on wetland and forestland, and exert the potentials of carbon sequestration; 4) Boost the nature protection, and conserve the biodiversity; 5) Vigorously exploit forestry bio-energy, and reduce the GHG emission; 6) Enhance the prevention and control of forest fires, diseases and pests as well as of illegal expropriation of forest land, and effectively control the GHG emission; 7) Appropriately increase the use of timber, further improve the utilization rate of timber, extend the use life-span of timber and strengthen the carbon-storing function of timber products; 8) Actively implement forestry programs for carbon sequestration and widen the financing channels for forestry development and carbon sequestration. Meanwhile, with the concrete actions in forestry response to climate change, e.g. setting up a specialized agency responsible for the response to climate change, establishing Asian-Pacific Network for Sustainable Forest Management and Rehabilitation, launching the national evaluation of preferential development areas for forestry CDM (Clean Development Mechanism) projects, initiating the pilot projects for Afforestation and Reforestation Project under the CDM, and creating and operating China Green Carbon Fund, China has made great achievements in her response to climate change. There

关键词： forestry climate change policy selection action effects China

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三维重建场景的纹理优化算法综述

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中国图象图形学报 2024年第8期29卷 2303-2318页

作者：于柳吴晓群北京工商大学计算机与人工智能学院北京100048 食品安全大数据技术北京市重点实验室北京100048

三维重建场景的纹理优化是计算机图形学和计算机视觉等领域的基础任务之一,其目的是优化纹理映射,减小重建几何体和纹理之间的对齐误差,提升重建场景的细节表现。为了对三维重建场景纹理优化算法的现状进行全面研究,本文从传统优化算法... 详细信息

三维重建场景的纹理优化是计算机图形学和计算机视觉等领域的基础任务之一,其目的是优化纹理映射,减小重建几何体和纹理之间的对齐误差,提升重建场景的细节表现。为了对三维重建场景纹理优化算法的现状进行全面研究,本文从传统优化算法和基于深度学习的优化算法两个方面对现有三维重建场景的纹理优化算法进行综述。传统的纹理优化算法一般通过优化相机姿态、校正图像颜色、提高重建几何精度等步骤达到三维场景纹理优化的目的,按照优化方式的不同,主要包括基于图像融合的优化算法、基于图像拼接的优化算法以及纹理与几何联合优化算法,而基于深度学习的优化算法则利用神经网络优化三维场景纹理。同时,本文汇总了常用的三维重建场景纹理优化的数据集与评价指标,并重点讨论了不同数据集和评价指标的特点与用法。此外,本文对现有的各类纹理优化算法进行了定性分析和定量对比,重点阐述了这些算法的原理及优缺点,最后探讨了三维重建场景的纹理优化面临的挑战和发展方向。

关键词：场景重建纹理优化图像融合图像拼接联合优化

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Will the Globe Encounter the Warmest Winter after the Hottest Summer in 2023?

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Advances in Atmospheric sciences 2024年第4期41卷 581-586页

作者： Fei ZHENG Shuai HU Jiehua MA Lin WANG Kexin LI Bo wu Qing BAO Jingbei PENG Chaofan LI Haifeng ZONG Yao YAO Baoqiang TIAN Hong CHEN Xianmei LANG Fangxing FAN Xiao DONG Yanling ZHAN Tao ZHU Tianjun ZHOU Jiang ZHU International Center for Climate and Environment Science(ICCES) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China State Key Laboratory of Numerical Modeling for Atmospheric sciences and Geophysical Fluid Dynamics(LASG) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Nansen-Zhu International Research Centre(NZC) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Center for Monsoon System Research(CMSR) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China CAS Key Lab of Regional Climate-Environment for Temperate East Asia(RCE-TEA) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China

In the boreal summer and autumn of 2023,the globe experienced an extremely hot period across both oceans and *** consecutive record-breaking mean surface temperature has caused many to speculate upon how the global temperature will evolve in the coming 2023/24 boreal *** this report,as shown in the multi-model ensemble mean(MME)prediction released by the institute of Atmospheric Physics at the chinese academy of sciences,a medium-to-strong eastern Pacific El Niño event will reach its mature phase in the following 2−3 months,which tends to excite an anomalous anticyclone over the western North Pacific and the Pacific-North American teleconnection,thus serving to modulate the winter climate in East Asia and North *** some uncertainty due to unpredictable internal atmospheric variability,the global mean surface temperature(GMST)in the 2023/24 winter will likely be the warmest in recorded history as a consequence of both the El Niño event and the long-term global warming ***,the middle and low latitudes of Eurasia are expected to experience an anomalously warm winter,and the surface air temperature anomaly in China will likely exceed 2.4 standard deviations above climatology and subsequently be recorded as the warmest winter since ***,the necessary early warnings are still reliable in the timely updated mediumterm numerical weather forecasts and sub-seasonal-to-seasonal prediction.

关键词： winter climate El Niño seasonal forecast GMST

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ALL ADMISSIBLE LINEAR ESTIMATES OF REGRESSION COEFFICIENTS UNDER MATRIX LOSS

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Systems Science and Mathematical sciences 1989年第1期2卷 80-91页

作者：吴启光陈建宝 institute of Systems Science Academia SinicaBeijingChina

The necessary and sufficient conditions for a linear estimator of a linear estimable functionof regression coefficients in a general fixed effects linear model with the assumptions of normality to beadmissible in the class of all estimators under matrix liss function are *** a general randomeffects or mixted effects linear model the necessary and sufficient conditions are obtained too.

关键词： Admissibility matrix loss function linear model regression cofficients linear estimator

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Transgenic soybean with TaDREB3a gene

Transgenic soybean with TaDREB3a gene

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第十一届全国植物基因组学大会

作者： Miao Liu~1,Zhikun Wang~1,Binbin Zhang~1,Xiaoxia wu~1,Youzhi Ma~2,Wenbin Li~(1*) 1 Soybean Research institute(chinese Education Ministry’s Key Laboratory of Soybean Biology),Northeast Agricultural University,Harbin 150030,People’s Republic of China 2 Crop Science institute,chinese Agricultural academy,beijing,100081

Drought,low temperature and high-salt stresses cause yield losses on as much as half of the world’s irrigated *** and genomic analyses have shown that there are different transcriptional regulatory pathways involved ...

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Cpne5,a new Ca2+ dependent phospholipids binding protein,works as a negative factor in the neuronal migration

Cpne5,a new Ca2+ dependent phospholipids binding protein,wor...

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中国神经科学学会第九届全国学术会议暨第五次会员代表大会

作者： Xuefeng DING,Yan wu,Fei WANG,Yongqi ZHAO,Ying wu,Shuhong LIU,Wenhong FAN,Lingling ZHU,Ming FAN Department of Brain Protection & Plasticity Research,beijing institute of Basic Medical sciences,beijing 100850, China

Cpne5 is a new Ca dependent phospholipids binding *** Previous studies on Cpne5 showed that it was mainly expressed in the ventricular zone(VZ).Further investigation demonstrated that Cpne5 was expressed both in the neural progenitor cells and newborn neurons in *** indicates that Cpne5 might play an important role in neurogenesis of the ventricular *** confirm our presumption,we established in utero electroporation model. With the shRNA expression vector targeting Cpne5 mRNA,we knocked down Cpne5 expression in the neurocytes in VZ at embryonic day 16(E16d),and the human GFP-CPNE5 expression vector was transfected into the neurocytes in VZ at embryonic day 16,and then Postnatal mouse brain at 3 days after birth(P3d,6d after electroporation) were fixed with 4%PFA and then sliced at 30μm *** analysis on slices showed that inhibiting Cpne5 expression can remarkably increase the number of neuron migrating to the cortex surface,and overexpressed CPNE5 protein can remarkably decrease the number of neuron migrating to the cortex *** indicates that Cpne5 may work as a negative factor in the neuronal migration.

关键词： Cpne5 neurodevelopment in utero electroporation neuronal migration

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Hydrogen sulfide ameliorates vascular calcification induced by vitamin D3 plus nicotine in rats

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Acta Pharmacologica Sinica 2006年第3期27卷 299-306页

作者： Sheng-ying wu~(2,6) Chun-shui PAN~3 Bin GENG~3 Jing ZHAO~3 Fang YU~3 Yong-zheng PANG~3 Chao-shu TANG~4 Yong-fen QI~(3,4,5) ~2institute of Cardiovascular Disease,Peking University First Hospital.beijing 100034 ~3Department of Physiology and Pathophysiology,Peking University Health Science Center,beijing 100083,China,~4Key Laboratory of Molecular Cardiovascular Science,Ministry of Education,beijing 100083,China institute of Cardiovascular Disease Peking University First Hospital Beijing China Department of Physiology and Pathophysiology Peking University Health Science Center Beijing China Key Laboratory of Molecular Cardiovascular Science Ministry of Education Beijing China

Aim:To investigate the role of the endogenous cystathionine γ-synthase(CSE)/hydrogen sulfide(H2S)pathway in vascular calcification in ***:A ratvascular calcification model was established by administration of vitamin D3 plusnicotine(VDN).The amount of CSE and osteopontin(OPN)mRNA was deter-mined by using semi-quantitative reverse-transcription polymerase chain *** calcium content,45Ca2+accumulation and alkaline phosphatase(ALP)activitywere measured.H,S production and CSE activity were ***:yonKossa staining produced strong positive black/brown staining in areas amongthe elastic fibers of the medial layer in the calcified *** calcium content,45Ca2+accumulation and ALP activity in calcified arteries increased by 6.77-,1.42-,and 1.87-fold,respectively,compared with *** expression of the OPNgene was upregulated(P<0.01).Expression of the CSE gene was ***,calcium content,45Ca2+uptake and ALP activity in the VDN plus NaHSgroup was lower than that in the VDN *** content of calcium and45Ca2+accumulation and activity of ALP in the aorta were 34.8%,40.75% and 63.5% lowerin the low-dosage NariS group than in the VDN group,respectively(P<0.01),andthe calcium content and deposition of45Ca2+and activity of ALP was 83.9%,37.8 % and 46.2% lower in the aorta in the high-dosage NariS group than in theVDN group,respectively(P<0.01).The expression of the OPN gene ***:The production of H,S,and CSE activity were de-creased and CSE gene expression was downregulated in rats with vascularcalcification.H2S can ameliorate vascular calcification,suggesting that the H2S/CSE pathway plays a regulatory role in the pathogenesis of vascular calcification.

关键词： hydrogen sulfide cystathionine-lyase vascular calcification mRNA

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Disruption of PABPN1 phase separation by SNRPD2 drives colorectal cancer cell proliferation and migration through promoting alternative polyadenylation of CTNNBIP1

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Science China(Life sciences) 2024年第6期67卷 1212-1225页

作者： Zhijie Hu Mengxia Li Yufeng Chen Liutao Chen Yuting Han Chengyong Chen Xin Lu Nan You Yawen Lou Yingye Huang Zhanfeng Huo Chao Liu Cheng Liang Susu Liu Ke Deng Liangfu Chen Shangwu Chen Guohui Wan Xiaojian wu Yonggui Fu Anlong Xu State Key Laboratory of Biocontrol Guangdong Province Key Laboratory of Pharmaceutical Functional GenesDepartment of BiochemistrySchool of Life SciencesSun Yat-sen UniversityGuangzhou 510275China Department of General Surgery(Colorectal Surgery)&Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases&Biomedical Innovation Center The Sixth Affiliated HospitalSun Yat-sen UniversityGuangzhou 510655China National-Local Joint Engineering Laboratory of Druggability and New Drug Evaluation National Engineering Research Center for New Drug and Druggability(cultivation)Guangdong Province Key Laboratory of New Drug Design and EvaluationSchool of Pharmaceutical SciencesSun Yat-sen UniversityGuangzhou 510006China School of Life sciences Beijing University of Chinese MedicineBeijing 100029China

Generally shortened 3′UTR due to alternative polyadenylation(APA)is widely observed in cancer,but its regulation mechanisms for cancer are not well ***,with profiling of APA in colorectal cancer tissues and poly(A)signal editing,we firstly identified that the shortened 3′UTR of CTNNIBP1 in colorectal cancer promotes cell proliferation and *** found that liquid-liquid phase separation(LLPS)of PABPN1 is reduced albeit with higher expression in cancer,and the reduction of LLPS leads to the shortened 3′UTR of CTNNBIP1and promotes cell proliferation and ***,the splicing factor SNRPD2 upregulated in colorectal cancer,can interact with glutamic-proline(EP)domain of PABPN1,and then disrupt LLPS of PABPN1,which attenuates the repression effect of PABPN1 on the proximal poly(A)*** results firstly reveal a new regulation mechanism of APA by disruption of LLPS of PABPN1,suggesting that regulation of APA by interfering LLPS of 3′end processing factor may have the potential as a new way for the treatment of cancer.

关键词： alternative polyadenylation colorectal cancer CTNNBIP1 PABPN1 liquid-liquid phase separation SNRPD2

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内蒙古砒砂岩地区风蚀、水蚀及重力侵蚀交互作用研究

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水土保持学报 2001年第2期15卷 25-29页

作者：唐政洪蔡强国李忠武赵怀玉中国科学院地理科学与资源研究所北京100101 内蒙古自治区伊克昭盟水保所

内蒙古砒砂岩地区是黄河重要的粗沙来源区 ,具有水蚀、风蚀及重力侵蚀交互的特点。利用 3个试验流域1983～ 1997年的天然观测资料 ,分析得到了砒砂岩侵蚀交互作用的时空分布规律 ;通过对砒砂岩的理化性质及侵蚀产沙特性的分析表明 ,砒... 详细信息

内蒙古砒砂岩地区是黄河重要的粗沙来源区 ,具有水蚀、风蚀及重力侵蚀交互的特点。利用 3个试验流域1983～ 1997年的天然观测资料 ,分析得到了砒砂岩侵蚀交互作用的时空分布规律 ;通过对砒砂岩的理化性质及侵蚀产沙特性的分析表明 ,砒砂岩的产流和产沙能力均高于当地的黄土和风沙土。建立了砒砂岩地区的水蚀模型。

关键词：吡砂岩交互作用风蚀水蚀重力侵蚀土壤侵蚀

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SOLIDIFICATION MICROSTRUCTURE OF Ni-BASE SUPERALLOY POWDER

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Acta Metallurgica Sinica(English Letters) 1991年第2期4卷 97-102页

作者： HU Benfu LI Huiying wu Chengjian ZHANG Shouhua University of Science and Technology beijing,beijing,China Associate Professor,Dept.of Material Science and Engineering,University of Science and technology beijing,beijing 100083,China.

The solidification microstructure and phase composition of Ni-base superalloy FGH95 pow- der with different mesh size have been *** structure transition was found from dendrite in major into cellular structure as the powder size reduces and the cooling rate in- *** predominant phase was identified as MC-type carbide,with different morphologies,which may be related to their composition and the condition of *** phases,such as boride,Laves and primary γ' are also present as ac- companiments of the carbide.

关键词： powder metallurgy superalloy microstructure solidification

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