检索结果-南通市图书馆

Effects of lag time in forest restoration and management

森林生态系统:英文版 2023年第4期10卷 504-515页

作者： klaus j.puettmann jürgen Bauhus Department of Forest Ecosystem and Society Oregon State UniversityCorvallisOR97331USA University of Freiburg Tennenbacherstr.479085FreiburgGermany

The increased speed of global change and associated high severity disturbances,in conjunction with the increasing suite of societal expectations on forests,suggest that the timeliness of interventions to encourage the adaptive capacity of ecosystems and to reduce negative impacts in regards to provision of ecosystem services is increasingly *** address this issue,we expand the concept of lag time as used in ecological discussions into a forest management *** this context,lag times have earlier starting and later ending points and can be separated into different *** components include the delay till detection,decision making,and implementation,followed by ecological lag time and the time till ecosystem services are provided at acceptable *** first three components are influenced by the availability of information,the lack of which can extend lag ***,the lengths of components are not simply additive but they *** example,treatment preparation due to a quicker detection can lead to shorter decision and implementation lag *** highlight the benefits of addressing the various components of lag time in forestry *** when considering adaptive capacity in times of global change,our analysis suggests that all aspects of the forestry sector are challenged to consider how to optimize lag ***,we propose that such issues need to be considered with any management action and are especially relevant in discussions whether the best strategy after disturbances or in the light of global change is to adopt a passive approach and let natural ecosystem processes play out on their own or whether active management is better suited to ensure a more rapid and fitting ecosystem response to facilitate the continued provision of ecosystem services.

关键词： Active versus passive restoration Management decisions Global change

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Book review “Wattles: Australian Acacia species around the world” by David M. Richardson, johannes j. Le Roux and Elizabete Marchante

引用

Forest Ecosystems 2024年第2期11卷 140-141页

作者： klaus von Gadow Faculty of Forestry and Forest Ecology Georg-August-University GöttingenBüsgenweg 5D-37077GöttingenGermany Department of Forestry and Wood Science Faculty of AgriSciencesStellenbosch UniversityStellenbosch Private Bag X1Stellenbosch7602South Africa

In a world of Google and AI, developing an encyclopedic coverage of a theme that is of great interest to biologists, social scientists, politicians and environmental managers, is a daunting challenge. Wattles is a book that presents new knowledge, makes interesting reading, and has the potential to stimulate research in a variety of disciplines. We learn that Acacia, commonly known as the wattles or acacias, is a genus of shrubs and trees comprising 1,083 species of which 417 are known to have been introduced to areas outside their native range. We are surprised to read that Australian acacias are found almost everywhere, in virtually all terrestrial habitats, including woodlands, grasslands, alpine settings,rainforests, coastal dunes and deserts, causing major environmental and socio-economic changes in the invaded regions. Until recently, Acacia comprised a group of plant species native to Africa, South America and Australasia, but the name is now reserved for species predominantly from Australia, including some from Southeast Asia. The genus name Acacia is Neo-Latin, and refers to a preparation extracted from the leaves and fruit pods of Vachellia nilotica, the original type of the genus.

关键词： Richardson outside Latin

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The difference of the ionomer–catalyst interfaces for poly(aryl piperidinium)hydroxide exchange membrane fuel cells and proton exchange membrane fuel cells

引用

Nano Research 2024年第7期17卷 6102-6110页

作者： Xuerui Liu Xingdong Wang Chanyu Zhang Yun Cai Bowen Chen Dongyue Xin Xiaoxiao jin Wei Zhu klaus Wippermann Hui Li Ruiyu Li Zhongbin Zhuang Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical TechnologyBeijing 100029China State Key Lab of Organic-Inorganic Composites Beijing University of Chemical TechnologyBeijing 100029China Research Institute of Petroleum Processing SINOPECBeijing 100083China DeepHytec Co. Ltd.Shenzhen 518118China Institute of Energy and Climate Research(IEK-14) Forschungszentrum Jülich GmbHJülich 52425Germany Beijing Key Laboratory of Energy Environmental Catalysis Beijing University of Chemical TechnologyBeijing 100029China

The microstructures of the ionomer–catalyst interfaces in the catalyst layers are important for the fuel cell performance because they determine the distribution of the active triple-phase ***,we investigate the ionomer–catalyst interactions in hydroxide exchange membrane fuel cells(HEMFCs)using poly(aryl piperidinium)and compare them with proton exchange membrane fuel cells(PEMFCs).It is found that different catalyst layer microstructures are between the two types of fuel *** ionomer/carbon(I/C)ratio does not have a remarkable impact on the HEMFC performance,while it has a strong impact on the PEMFC performance,indicating the weaker interaction between the HEMFC ionomer and *** dynamics simulations demonstrate that the HEMFC ionomer tends to distribute on the carbon support,unlike the PEMFC ionomer,which heavily covers the Pt *** results suggest that the poisoning effect of the ionomer on the catalyst is much weaker in HEMFCs,and the improved ionomer/catalyst interaction is beneficial for the HEMFC performances.

关键词： hydroxide exchange membrane fuel cells catalysts ionomer oxygen reduction reaction interfaces

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Inbreeding and genetic load in a pair of sibling grouse species:Tetrastes sewersowi and ***

引用

Avian Research 2024年第2期15卷 265-270页

作者： Kai Song Tom van der Valk Bin Gao Peter Halvarsson Yun Fang Wendong Xie Siegfried klaus Zhiming Han Yue-Hua Sun jacob Hoglund Key Laboratory of Animal Ecology and Conservation Biology Institute of ZoologyChinese Academy of SciencesBeijing100101China Animal Ecology Department of Ecology and GeneticsUppsala UniversityNorbyvagen 18DUppsala75236Sweden Department of Cell and Molecular Biology Uppsala75273Sweden Unit of Parasitology Department of Biomedicine and Veterinary Public HealthSwedish University of Agricultural SciencesPO Box 7036Uppsala75007Sweden Lindenhohe 5 JenaD-07749Germany The State Key Laboratory of Reproductive Biology Institute of ZoologyChinese Academy of SciencesBeijing100101China

Genetic load and inbreeding are recognized as important factors to be considered in conservation *** levels of both can increase the risk of population extinction by negatively impacting fitness-related characters in many species of plants and animals,including humans(inbreeding depression).Genomic tech-niques are increasingly used in measuring and understanding genetic load and inbreeding and their importance in evolution and *** used whole genome resequencing data from two sibling grouse species in subarctic Eurasia to quantify *** found a large range of inbreeding measured as FROH(fraction of runs of homozygosity)in individuals from different populations of Chinese Grouse(Tetrastes sewerzowi)and Hazel Grouse(***).FROH estimated from genome-wide runs of homozygosity(ROH)ranged from 0.02 to 0.24 among Chinese Grouse populations and from 0.01 to 0.44 in Hazel *** from a population of Chinese Grouse residing in the Qilian mountains and from the European populations of Hazel Grouse(including samples from Sweden,Germany and Northeast Poland)were the most inbred(FROH ranged from 0.10 to 0.23 and 0.11 to 0.44,respectively).These levels are comparable to other highly inbred populations of *** Grouse from northern China and Chinese Grouse residing in the Qinghai-Tibetan Plateau showed relatively lower inbreeding *** of the ratio between deleterious missense mutations and synonymous mutations revealed higher levels in Chinese Grouse as compared to Hazel *** results are possibly explained by higher fixation rates,mutational melt down,in the range-restricted Chinese Grouse compared to the wide-ranging Hazel ***,when we compared the relatively more severe class of loss-of-function muta-tions,Hazel Grouse had slightly higher levels than Chinese Grouse,a result which may indicate that purifying selection(purging)has been more efficient in Chinese Grouse on this class of mutations.

关键词： Genetic load Inbreeding Purifying selection Qinghai-Tibetan Plateau ROH Tetrastes

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Piezo1 expression in chondrocytes controls endochondral ossification and osteoarthritis development

引用

Bone Research 2024年第1期12卷 199-214页

作者： Laura j.Brylka Assil-Ramin Alimy Miriam E.A.Tschaffon-Müller Shan jiang Tobias Malte Ballhause Anke Baranowsky Simon von Kroge julian Delsmann Eva Pawlus Kian Eghbalian klaus Püschel Astrid Schoppa Melanie Haffner-Luntzer David j.Beech Frank Timo Beil Michael Amling johannes Keller Anita Ignatius Timur A.Yorgan Tim Rolvien Thorsten Schinke Department of Osteology and Biomechanics University Medical Center Hamburg-Eppendorf20246 HamburgGermany Department of Trauma and Orthopedic Surgery University Medical Center Hamburg-Eppendorf20246 HamburgGermany Institute of Orthopedic Research and Biomechanics University Medical Center UlmBadenWürttemberg89081 UlmGermany Department Legal Medicine University Medical Center Hamburg-Eppendorf20246 HamburgGermany Leeds Institute of Cardiovascular and Metabolic Medicine School of MedicineUniversity of LeedsLS29JT LeedsUK

Piezo proteins are mechanically activated ion channels,which are required for mechanosensing functions in a variety of cell *** we and others have previously demonstrated that the expression of Piezo1 in osteoblast lineage cells is essential for boneanabolic processes,there was only suggestive evidence indicating a role of Piezo1 and/or Piezo2 in *** we addressed the question if and how chondrocyte expression of the mechanosensitive proteins Piezo1 or Piezo2 controls physiological endochondral ossification and pathological osteoarthritis(OA)*** with chondrocyte-specific inactivation of Piezo1(Piezo1^(Col2a1Cre)),but not of Piezo2,developed a near absence of trabecular bone below the chondrogenic growth plate ***,all Piezo1^(Col2a1Cre) animals displayed multiple fractures of rib bones at 7 days of age,which were located close to the growth *** skeletal growth was only mildly affected in these mice,OA pathologies were markedly less pronounced compared to littermate controls at 60 weeks of ***,when OA was induced by anterior cruciate ligament transection,only the chondrocyte inactivation of Piezo1,not of Piezo2,resulted in attenuated articular cartilage ***,osteophyte formation and maturation were also reduced in Piezo1^(Col2a1Cre) *** further observed increased Piezo1 protein abundance in cartilaginous zones of human ***,we identified Ptgs2 and Ccn2 as potentially relevant Piezo1 downstream genes in ***,our data do not only demonstrate that Piezo1 is a critical regulator of physiological and pathological endochondral ossification processes,but also suggest that Piezo1 antagonists may be established as a novel approach to limit osteophyte formation in OA.

关键词： Piezo1 markedly ossification

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The functional complex network approach to foster forest resilience to global changes

引用

Forest Ecosystems 2019年第3期6卷 194-209页

作者： Christian Messier jürgen Bauhus Frederik Doyon Fanny Maure Rita Sousa-Silva Philippe Nolet Marco Mina Núria Aquilué Marie-josée Fortin klaus puettmann Département des sciences naturelles and Institut des sciences de la forêt tempérée (ISFORT) Université du Québec en Outaouais(UQO)58 rue PrincipaleRiponQC J0V 1V0 Canada Centre d’étude de la forêt Université du Québec à Montréal (UQAM)Case postale 8888succursale Centre-VilleMontréalQC H3C 3P8Canada Chair of Silviculture Institute of Forest SciencesUniversity of FreiburgTennenbacherstr.479106 FreiburgGermany Swiss Federal Institute for Forest Snow and Landscape Research WSLBirmensdorfSwitzerland Department of Ecology and Evolution University of TorontoTorontoON M5S 3B2Canada Department of Ecosystems and Society Oregon State UniversityCorvallisOR 97331USA

Human impacts on Earth's ecosystems have greatly intensified in the last decades. This is reflected in unexpected disturbance events, as well as new and increasing socio-economic demands, all of which are affecting the resilience of forest ecosystems worldwide and the provision of important ecosystem services. This Anthropocene era is forcing us to reconsider past and current forest management and silvicultural practices, and search for new ones that are more flexible and better at dealing with the increasing uncertainty brought about by these accelerating and cumulative global changes. Here, we briefly review the focus and limitations of past and current forest management and silvicultural practices mainly as developed in Europe and North America. We then discuss some recent promising concepts, such as managing forests as complex adaptive systems, and approaches based on resilience, functional diversity, assisted migration and multi-species plantations, to propose a novel approach to integrate the functionality of species-traits into a functional complex network approach as a flexible and multi-scale way to manage forests for the Anthropocene. This approach takes into consideration the high level of uncertainty associated with future environmental and societal changes. It relies on the quantification and dynamic monitoring of functional diversity and complex network indices to manage forests as a functional complex network. Using this novel approach, the most efficient forest management and silvicultural practices can be determined, as well as where, at what scale, and at what intensity landscape-scale resistance, resilience and adaptive capacity of forests to global changes can be improved.

关键词： forest management North America Ecosystem services

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Silvicultural alternatives to conventional even-aged forest man-agement-what limits global adoption?

引用

Forest Ecosystems 2015年第2期2卷 123-138页

作者： klaus j.puettmann Scott McG Wilson Susan C Baker Pablo j Donoso Lars Dr?ssler Girma Amente Brian D Harvey Thomas Knoke Yuanchang Lu Susanna Nocentini Francis E Putz Toshiya Yoshida jürgen Bauhus Department of Forest Ecosystems and Society Oregon State University Consultant Forester and Forest Ecologist School ofBiological Sciences University of Tasmania Department of Forests and Society Faculty of Forest Sciences and Natural Resources Universidad Austral de Chile Southern Swedish Forest Research Centre Swedish Agricultural University Haramaya University Institut de recherche sur les forêts Université du Québec en Abitibi-Témiscamingue 445 Boulevard de l’Université Institute of Forest Management TUMSchool of Life Sciences Weihenstephan Technische Universit?t München Department of Forest Management and Statistics IFRIT Chinese Academy of Forestry Department of Agricultural Food and Forestry Systems University of Florence Department of Biology University of Florida Uryu Experimental Forest Field Science Center for Northern Biosphere Hokkaido University Chair of Silviculture Faculty of Environment and Natural Resources University of FreiburgTennenbacherstr

Background： The development of forestry as a scientific and management discipline over the last two centuries has mainly emphasized intensive management operations focused on increased commodity production, mostly wood. This conventionar＇ forest management approach has typically favored production of even-aged, single-species stands. While alternative management regimes have generally received less attention, this has been changing over the last three decades, especially in countries with developed economies. Reasons for this change include a combination of new information and concerns about the ecological consequences of intensive forestry practices and a willingness on the part of many forest owners and society to embrace a wider set of management objectives. Alternative silvicultural approaches are characterized by a set of fundamental principles, including avoidance of clearcutting, an emphasis on structural diversity and small-scale variability, deployment of mixed species with natural regeneration, and avoidance of intensive site-preparation methods. Methods： Our compilation of the authors＇ experiences and perspectives from various parts of the world aims to initiate a larger discussion concerning the constraints to and the potential of adopting alternative silvicultural practices. Results： The results suggest that a wider adoption of alternative silvicultural practices is currently hindered by a suite of ecological, economic, logistical, informational, cultural, and historical constraints. Individual contexts display their own unique combinations and relative significance of these constraints, and accordingly, targeted efforts, such as regulations and incentives, may help to overcome specific challenges. Conclusions： In a broader context, we propose that less emphases on strict applications of principles and on stand structures might provide additional flexibility and facilitate the adoption of alternative silvicultural regimes in a broader set of circumstanc

关键词： Natural Regeneration Forest Owner Stand Structure Commodity Production Private Landowner

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Amine reclaiming technologies in post-combustion carbon dioxide capture

引用

journal of Environmental Sciences 2015年第1期27卷 276-289页

作者： Tielin Wang jon Hovland klaus j.jens Telemark University College Tel-Tek Porsgrunn 3918 Norway

Amine scrubbing is the most developed technology for carbon dioxide（CO2） *** of amine solvents due to the presence of high levels of oxygen and other impurities in flue gas causes increasing costs and deterioration in long term performance,and therefore purification of the solvents is needed to overcome these problems. This review presents the reclaiming of amine solvents used for post combustion CO2capture（PCC）. Thermal reclaiming, ion exchange, and electrodialysis, although principally developed for sour gas sweetening, have also been tested for CO2 capture from flue *** three technologies all have their strengths and weaknesses, and further development is needed to reduce energy usage and costs. An expected future trend for amine reclamation is to focus on process integration of the current reclaiming technologies into the PCC process in order to drive down costs.

关键词： Carbon dioxide capture Amine reclaiming Distillation Ion exchange Electrodialysis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Spectro-Microscopy of Living Plant Cells

引用

Molecular Plant 2012年第1期5卷 14-26页

作者： klaus Hatter Alfred j. Meixner Frank Schleifenbaum Center for Plant Molecular Biology （ZMBP） Plant Physiology and Biophysical Chemistry University of Tubingen Auf der Morgenstelle 1 72076 Tuebingen Germany Institute for Physical and Theoretical Chemistry （IPTC） Nano-Optics University of Tubingen Auf der Morgenstelle 8 72076 Tubingen Germany

Spectro-microscopy, a combination of fluorescence microscopy with spatially resolved spectroscopic techni- ques, provides new and exciting tools for functional cell biology in living organisms. This review focuses on recent devel- opments in spectro-microscopic applications for the investigation of living plant cells in their native tissue context. The application of spectro-microscopic methods led to the recent discovery of a fast signal response pathway for the brassi- nosteroide receptor BRI1 in the plasma membrane of living plant cells. Moreover, the competence of different plant cell types to respond to environmental or endogenous stimuli was determined in vivo by correlation analysis of different optical and spectroscopic readouts such as fluorescence lifetime （FLT）. Furthermore, a new spectro-microscopic technique, fluorescence intensity decay shape analysis microscopy （FIDSAM）, has been developed. FIDSAM is capable of imaging low- expressed fluorophore-tagged proteins at high spatial resolution and precludes the misinterpretation of autofluorescence artifacts. In addition, FIDSAM provides a very effective and sensitive tool on the basis of F6rster resonance energy transfer （FRET） for the qualitative and quantitative determination of protein-protein interaction. Finally, we report on the quan- titative analysis of the photosystem I and II （PSI/PSII） ratio in the chloroplasts of living Arabidopsis plants at room tem- perature, using high-resolution, spatially resolved fluorescence spectroscopy. With this technique, it was not only possible to measure PSI/PSII ratios, but also to demonstrate the differential competence of wild-type and carbohydrate-deficient plants to adapt the PSI/PSII ratio to different light conditions. In summary, the information content of standard microscopic images is extended by several dimensions by the use of spectro-microscopic approaches. Therefore, novel cell physiolog- ical and molecular topics can be addressed and valuable insigh

关键词： Fluorescence microscopy FLIM FRET photosystems protein-protein interaction FIDSAM.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Telling Duckweed Apart:Genotyping Technologies for the Lemnaceae

引用

应用与环境生物学报 2013年第1期19卷 1-10页

作者： klaus j.Appenroth Nikolai Borisjuk Eric Lam University of jena Institute of General Botany and Plant Physiology Plant Biology and Pathology Rutgers State University of New Brunswick

The family of Lemnaceae,commonly called duckweed,comprise five genera and 37 species of aquaticmonocotyledonous plants that are endemic to lakes,ponds and brackish water bodies on most continents. They are angiospermsthat have the highest biomass production rate and have been used to remediate wastewater from both municipal andindustrial sources. With these attractive features,duckweed is poised to be a novel agricultural platform that can complementcurrent terrestrial crops. In addition,their remarkable ability to adapt to diverse climates and conditions may provide newunderstanding of stress tolerance and genome adaptability mechanisms. However,one of the first challenges facing theseapplications is to establish reliable and rapid methods for identification of closely related strains that may have very differentbehaviour or properties. This review article summarizes the state of the arts for this endeavour and provides the outlook for thisquest in the near future.

关键词： RAPD ISSR AFLP 环境生物学

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：