查询词典 tree ring

Acid rain ; air pollution ; populus ; tree ring width ; basic density.

酸雨；大气污染；杨树；年轮宽度；基本密度

The project team has taken loess, lacustrine and peat sediments and tree ring as the research carrier, a systematic study has been carried on the warm phases of the different period (60-25 ka, last deglaciation, Holocene, the recent e few hundred years) and the last interglaciation on the basis of the extensive field investigation and laboratory analysis.

项目组以黄土、湖沼和树轮等沉积物为研究载体，经过大量的野外考察和实验室分析测试，对我国半干旱带末次间冰期和距今六万年以来不同时间段的温暖期（6万年到2.5万年、末次冰消期、全新世、最近几百年）进行了系统的研究，取得了一批重要的阶段性成果，确认了东亚季风气候和温暖期的不稳定性特征。

Schweingruber F H Tree ring,basics and applications of dendrochronology Dordrecht:D.Reidel Publishing Company , 1988,null

吴祥定%邵雪梅中国秦岭地区树木年轮密度对气候响应的初步分析应用气象学报， 1994，2

Response of tree-ring structure to the variance of average monthly temperature and precipitation on Populus simonii and P.×beijingensis collected from Mu Us Desert was studied using theories of dendrochronology.

摘 要：应用年轮气候学理论和方法对毛乌素沙地小叶杨和北京杨的年轮结构的变化特征及其与月平均气温和月降水量的响应关系进行了分析。

Dendrochronology study in Kunming is feasible. RES Tree ring chronology has high sensitivity, but STD chronology can explain more population information.

5通过对云南松树轮样本的年代学和气候学分析可知，在昆明地区可以利用云南松进行树木年轮研究，所建立的树轮宽度指数年表中自回归年表的敏感性较高，但去趋势序列年表反映的群体信息更多；轮宽与气候要素的显著相关关系，使利用轮宽变化的指数年表重建气候变化的历史过程具有可能性。

He contacted David Stable of the University of Arkansas in Fayetteville who uses tree ring data to study climate.

他为此联系了费邪特维尔市阿肯色大学利用树的年轮来研究气候的戴维·斯塔堡。

A tree-ring reconstruction known as the "hockey stick", which shows unprecedented 20th-century warming, has been a particular target of criticism by sceptics.

名为"曲棍球棒"的树木年轮重建发出了20世纪前所未有的警告，这却成为怀疑论者挑剔评论的目标。

The paper has given an overview on domestic and abroad research status of the climatic changes during The Little Ice Age, mainly depending on the different proxies such as ice cores, tree-ring, lake sediment, documentary and desert semimetal strata.

并重点从冰芯、树轮、湖泊沉积、历史文献和沙漠地层等方面综述了近年来国内外对小冰期气候变化的研究现状。

Based on the two proxies of climate change - tree-ring and stalagmite, combining them with the historical documents, the author discusses the history and effects of climate change about 200 years in Kunming, In this dissertation, the author infers the possibility of climate change for the next five years, ten years, and fifty years; Then get a Synthetic result of historical climate change.

在对树轮和石笋这两类气候变化自然代用资料研究的基础上，结合历史文献资料，分析了近200年昆明地区气候变化的历史和影响，并对昆明地区未来5年、10年和50年气候变化的可能性进行推测，形成了这三类资料支持之下，对历史气候的集成研究成果。

Low cloud information from May to July was significantly recorded in δ〓C in PK tree ring.

证明这种新的研究方案是可行的，值得在以后的工作中进一步加强。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。