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| 1 | Stand structure and height-diameter relationship of a degraded Populus euphratica forest in the lower reaches of the Tarim River, Northwest China显示文摘Understanding stand structure and height-diameter relationship of trees provides very useful information to establish appropriate countermeasures for sustainable management of endangered forests. Populus euphratica, a dominant tree species along the Tarim River watershed, plays an irreplaceable role in the sustainable development of regional ecology, economy and society. However, as the result of climate changes and human activities, the natural riparian ecosystems within the whole river basin were degraded enormously, particularly in the lower reaches of the river where about 320 km of the riparian forests were either highly degraded or dead. In this study, we presented one of the main criteria for the assessment of vitality of P. euphratica forests by estimating the defoliation level, and analyzed forest structure and determined the height-diameter(height means the height of a tree and diameter means the diameter at breast height(DBH) of a tree) relationship of trees in different vitality classes(i.e. healthy, good, medium, senesced, dying, dead and fallen). Trees classified as healthy and good accounted for approximately 40% of all sample trees, while slightly and highly degraded trees took up nearly 60% of total sample trees. The values of TH(tree height) and DBH ranged from 0–19 m and 0–125 cm, respectively. Trees more than 15 m in TH and 60 cm in DBH appeared sporadically. Trees in different vitality classes had different distribution patterns. Healthy trees were mainly composed more of relatively younger trees than of degraded tress. The height-diameter relationships differed greatly among tress in different vitality classes, with the coefficients ranging from 0.1653 to 0.6942. Correlation coefficients of TH and DBH in healthy and good trees were higher than those in trees of other vitality classes. The correlation between TH and DBH decreased with the decline of tree vitality. Our results suggested that it might be able to differentiate degraded P. euphratica trees from healthy trees by determining the height-diameter correlation coefficient, and the coefficient would be a new parameter for detecting degradation and assessing sustainable management of floodplain forests in arid regions. In addition, tree vitality should be taken into account to make an accurate height-diameter model for tree height prediction. | AISHAN Tayierjiang HALIK ümüt Florian BETZ TIYIP Tashpolat DING Jianli NUERMAIMAITI Yiliyasijiang | 2015 | Journal of Arid Land2015，7，4： | 10 |
| 2 | 输水影响下胡杨胸径生长量时空变化显示文摘以塔里木河下游14次人工输水对荒漠河岸林修复过程的生态效益评估为长期目标,利用近10 a在塔里木河下游阿拉干断面的大量野外调查数据,探讨了胡杨胸径在不同时间和空间尺度上对人工输水的响应。结果显示,随着输水次数和输水量的稳步增加,河道两边地下水位逐渐抬升,胡杨胸径生长量明显增大;但是,由于不同年间输水次数、输水季节和输水量有差异,各年间胡杨胸径生长量呈现出不同的增加趋势,胸径生长量与河道输水量大小相互对应,累计输水量与胸径生长量成正比,两者之间的指数函数模型拟合度为0.928。随着离河道距离的增加,地下水位抬升不明显,胡杨胸径生长量也逐渐变小,胸径生长量与离河道距离之间的回归模型拟合度为0.965,离河道距离与胸径生长量成反比。离河道距离与不同胸径级胡杨胸径生长量之间的回归模型拟合度(以胸径级增大的趋势)分别为0.876,0.879,0.849和0.837;与胸径级增大的趋势耦合。由此得出,胸径级大的胡杨胸径生长量随离河道距离的变化差异没有比胸径级小的胡杨大,说明胡杨胸径级越大(即胡杨进入老龄阶段),其胸径生长量与地下水埋深之间的关系则不明显。 | 买尔当.克依木 玉米提.哈力克 BETZ Florian 古力比亚.乌买尔 古丽卡玛尔.迪力木拉提 | 2016 | 森林与环境学报2016，36，2： | 9 |
| 3 | Modeling height–diameter relationship for Populus euphratica in the Tarim riparian forest ecosystem, Northwest China显示文摘Modeling height–diameter relationships is an important component in estimating and predicting forest development under different forest management scenarios. In this paper, ten widely used candidate height–diameter models were fitted to tree height and diameter at breast height(DBH)data for Populus euphratica Oliv. within a 100 ha permanent plots at Arghan Village in the lower reaches of the Tarim River, Xinjiang Uyghur Autonomous Region of China. Data from 4781 trees were used and split randomly into two sets:75 % of the data were used to estimate model parameters(model calibration), and the remaining data(25 %) were reserved for model validation. All model performances were evaluated and compared by means of multiple model performance criteria such as asymptotic t-statistics of model parameters, standardized residuals against predicted height,root mean square error(RMSE), Akaike's informationcriterion(AIC), mean prediction error(ME) and mean absolute error(MAE). The estimated parameter a for model(6) was not statistically significant at a level of a = 0.05. RMSE and AIC test result for all models showed that exponential models(1),(2),(3) and(4) performed significantly better than others. All ten models had very small MEs and MAEs. Nearly all models underestimated tree heights except for model(6). Comparing the MEs and MAEs of models, model(1) produced smaller MEs(0.0059) and MAEs(1.3754) than other models. To assess the predictive performance of models, we also calculated MEs by dividing the model validation data set into 10-cm DBH classes. This suggested that all models were likely to create higher mean prediction errors for tree DBH classes[20 cm. However, no clear trend was found among models.Model(6) generated significantly smaller mean prediction errors across all tree DBH classes. Considering all the aforementioned criteria, model(1): TH ? 1:3 t a= e1 t b?eàc?DBHT and model(6): TH ? 1:3 t DBH2= ea t b?DBH t c ? DBH2T are recommended as suitable models for describing the height–diameter relationship of P. euphratica. The limitations of other models showing poor performance in predicting tree height are discussed. We provide explanations for these shortcomings. | Tayierjiang Aishan Umüt Halik Florian Betz Philipp Gartner Bernd Cyffka | 2016 | Journal of Forestry Research2016，27，4： | 9 |
| 4 | Not Ready for Convergence in Data Infrastructures显示文摘Much research is dependent on Information and Communication Technologies(ICT).Researchers in different research domains have set up their own ICT systems(data labs)to support their research,from data collection(observation,experiment,simulation)through analysis(analytics,visualisation)to publication.However,too frequently the Digital Objects(DOs)upon which the research results are based are not curated and thus neither available for reproduction of the research nor utilization for other(e.g.,multidisciplinary)research purposes.The key to curation is rich metadata recording not only a description of the DO and the conditions of its use but also the provenance-the trail of actions performed on the DO along the research workflow.There are increasing real-world requirements for multidisciplinary research.With DOs in domain-specific ICT systems(silos),commonly with inadequate metadata,such research is hindered.Despite wide agreement on principles for achieving FAIR(findable,accessible,interoperable,and reusable)utilization of research data,current practices fall short.FAIR DOs offer a way forward.The paradoxes,barriers and possible solutions are examined.The key is persuading the researcher to adopt best practices which implies decreasing the cost(easy to use autonomic tools)and increasing the benefit(incentives such as acknowledgement and citation)while maintaining researcher independence and flexibility. | Keith Jeffery Peter Wittenburg Larry Lannom George Strawn Claudia Biniossek Dirk Betz Christophe Blanchi | 2021 | Data Intelligence2021，3，1： | 7 |
| 5 | Vitality variation and population structure of a riparian forest in the lower reaches of the Tarim River,NW China显示文摘Since 2000, the Chinese government has implemented emergency water diversion measures to restore the damaged riparian forest ecosystem with dominant tree species Euphrat poplar(Populus euphratica Oliv.)at the lower reaches of the Tarim River. In the present study, comparative analysis of variations in the vitality of P. euphratica trees were made using 2005 and 2010 data to illustrate the revitalization process of riparian forest. Poplar trees within 300 m of the riverbed were positively revitalized, while the vitality of trees farther than 300 m from the river decreased. Population structure was studied to demonstrate the development of poplar community. In the first belt, the class structure for the diameter at breast height(DBH) of P. euphratica fit a logistic model, and the 2nd, 3rd and 4th belt curve fittings were close to a Gaussian model; in other plots they were bimodal. Cluster analysis of the composition of the DBH class of poplar trees demonstrated that those within 16–36 cm DBH were the most abundant(58.49% of total) in study area, under 16 cm of DBH were second(31.36%), and trees >40 cm DBH were the least abundant(10.15%). More than 80% of the trees were young and medium-sized, which means that the poplar forest community in the vicinity of the lower Tarim River is at a stable developmental stage. The abundance of juvenile trees of P. euphratica in the first and second measuring belts was 12.13% in 2005 and increased to 25.52% in 2010, which means that the emergency water transfer had a positive impact on the generation of young P. euphratica trees in the vicinity of the river. | Maierdang Keyimu Umut Halik Florian Betz Choimaa Dulamsuren | 2018 | Journal of Forestry Research2018，29，3： | 7 |
| 6 | 利益相关者对塔里木河下游荒漠河岸林生态系统服务的认知度分析显示文摘近50年以来,塔里木河下游生态环境曾因人类不合理开发利用而导致严重退化。自2000至2013年实施的人工生态输水工程对胡杨为主体的荒漠河岸林的恢复及其生态系统服务功能的提高产生了积极影响。通过问卷调查的方法分析了利益相关者对塔里木河下游荒漠河岸林生态系统服务的认知程度。结果表明:88.1%的被调查者对荒漠河岸林生态系统服务有深刻的认识,7.8%的人不清楚;84%的被调查者认为荒漠河岸林在防止沙(荒)漠化方面的效益最高,仅有8.1%被调查者认为提供建筑材料和动物饲料等方面效益最高;被调查者对人工输水后生态环境变化的感知度依次为:灰尘和沙尘暴减弱>沙(荒)漠化减少>胡杨长势改善>胡杨幼树增多>河岸林面积增加;被调查者对人工输水的支付意愿有所差异,其中15.1%的人对其态度模糊,7.8%的人不愿意支付,有36%的被调查者愿意支付工资的<1%,15.4%的被调查者愿意支付工资的1%,12%的人愿意支付工资的2%,3.8%的人愿意支付工资的3%,7.9%的人愿意支付工资的>3%。问卷调查的结果表明,被调查者对塔里木河下游荒漠河岸林生态系统服务的认知度和支持率相当高,体现出生态输水的社会效益显著。 | 阿依努尔.艾尼 玉米提.哈力克 塔依尔江.艾山 Florian Betz 阿不都拉.阿不力孜 张秋爽 | 2016 | 水土保持研究2016，23，1： | 6 |
| 7 | Bone Marrow-Derived Myofibroblasts Contribute to the Mesenchymal Stem Cell Niche and Promote Tumor Growth显示文摘 | Michael Quante Shui Ping Tu Hiroyuki Tomita Tamas Gonda Sophie S.W. Wang Shigeo Takashi Gwang Ho Baik Wataru Shibata Bethany DiPrete Kelly S. Betz Richard Friedman Andrea Varro Benjamin Tycko Timothy C. Wang | 2011 | Cancer Cell2011，，2： | 4 |
| 8 | Experimental intracerebral hemorrhage: relationship between brain edema,blood flow,and bloodbrain barrier permeability in rats显示文摘 | Yang G Y Betz L Chenevert T L | 1994 | J Neusurg1994，81，1： | 3 |
| 9 | Interleukin-1 in cerebral ischemia显示文摘 | Betz AL Schielke GP Yang GY | 1996 | Keio J Med1996，45，： | 2 |
| 10 | Experimental intracerebral hemorrhage relationship between brain edema, blood flow, and blood-brain barrier permeability in rat显示文摘 | YANG GY BETZ AL CHENERERT TL | 1994 | J Neurosurg1994，81，1： | 1 |
| 11 | Surfactant protein gene expression in metastatic and micrometastatic pulmonary adenocarcinomas and other non-small cell lung carcinomas: detection by reverse transcriptase-polymerase chain reaction显示文摘 | Betz C Papadopoulos T Buchwald J | 1995 | Cancer Res1995，55，19： | 1 |
| 12 | The role of the coagulation cascadein brain edema formation after intracerebral hemorrhage显示文摘 | Lee KR Betz AL Kim S | 1996 | Acta Neurochir1996，138，4： | 1 |
| 13 | Middle cerebral artery occlusion in rats:a neurological and pathological evaluation of a reproducible mod- el 显示文摘 | Menzies SA Hoff JT Betz AL | 1992 | Neurosurgery1992，31，1： | 1 |
| 14 | Middle cerebral artery oceiusion in rats: a neurological and pathological cvaluation of a reproducible model显示文摘 | Menzies SA Hoff JT Betz AL | 1992 | Neurosurgery1992，31，： | 1 |
| 15 | Reperfusion-induced injury to the blood-brain barrier after middle artery occlusion in rats显示文摘 | Yang GY Betz AL | 1994 | Stroke1994，25，8： | 1 |
| 16 | Course ol glial immunoreactivity for vimentin,tenascin and alphal-antichymotrypsin after traumatic injury to human brain显示文摘 | Hausmann R Betz P | 2001 | Int J Legal Med2001，114，6： | 1 |
| 17 | Experimental intracerebral hemorrhage:relationship between brain edema,blood flow,and blood -brain barrier permeability in rat显示文摘 | Yang GY Betz AL Chenerert TL | 1994 | J Neurosurg1994，81，： | 1 |
| 18 | Expression of renal and intestinal NalPi cotransporters in the absence of GABARJkP 显示文摘 | Reining S C Liesegang A Betz H | 2010 | Pfluigers Arch2010，460，： | 1 |
| 19 | The kinetics of corrosion of E-glass fibres in hydrochloric acid显示文摘 | Jones R Betz D | 2004 | Journal of Materials Science2004，39，18： | 1 |
| 20 | Direct SERS detection of contaminants in a complex mixture:rapid,single step screening for melamine in liquid infant formula显示文摘 | Betz J F Cheng Y Rubloff G W | 2012 | Analyst2012，137，： | 1 |
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