气候变化

From these data, the desertification has developed based on the fluctuating humidity before 1980s and reverse after 1980s in study area. The results from analysis on climate and land use change in late 50 years show that changefully precipitation is the main natural background that...

对研究区近50a来的气候及土地利用方式变化的分析表明，气候因素中降水的多变性是研究区土地沙漠化发生的自然背景，而滞后于气候变化的土地利用方式改变则是研究区沙漠化最主要的成因。

The most significant oasis effect is the decrease of both average wind speed and the number of gale days.

人工绿洲地区的气候变化实际上就是气候背景(自然条件下的气候变化)和人类活动对气候影响的叠加。

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。

Only recently have such international undertakings as the Cloud Feedback Model Intercomparison Project and the Cloud System Study of the Global Energy and Water Cycle Experiment begun a systematic comparison of the effects of clouds on dozens of the most important climate models, allowing researchers to start to unravel more precisely the role that clouds play in climate change.

直到最近，一些国际事业才开始着手于对云层在各种最重要的气候模式中效应的系统化对比分析，诸如云层回应模拟互比工程和全球能量与水循环试验工程等，这样研究人员就能够更明确地了解云层在气候变化中的作用。英国的气候变化哈德里研究中心的马克？

Based on the above two models, the meteorological data of Baseline (1961~ 1990), A2 (2071—2079), and B2 (2071~2090) exported directly by PRECIS were used in crop model to output yield, and the number of growth date of 11 maize stations in the future climate changed. At last, the affection of future climate changed for maize production was evaluated.

在此基础上，用PRECIS的模拟结果直接为CERES-Maize模型提供Baseline 30年(1961～1990年)、A2情景9年(2071～2079年)、B2情景20年(2071～2090年)的气候变化情景，计算现在和未来气候条件下的全国11个玉米站点的产量和生育期天数，评估未来气候变化对中国玉米生产的影响。

Both the comparability in millennial scale with the deep sea oxygen isotope record and the consistency with summer in solation change at 65°N show evidently that the climatic change of the paleo-monsoon in Asia was also driven by the changing period of orbital parameter and by the change of global ice amount.

黔桂地区25万年来的气候在千年尺度上与深海氧同位素记录的可比性，及与N65°夏季太阳幅射能量变化的一致性，显示了亚洲古季风的气候变化规律，同样受轨道参数变化周期以及全球冰量变化所驱动。

The analysis of TOC andδ13Corg benefits from Well Chao-73, indicating that they response well enough to the Cretaceous paleoenvironment and paleoclimate. During the sedimentary period of Quantou formation to Qingshankou formation in Songliao basin, the water tends to rise and becomes anoxic, and the deoxidized water leads to the organic matter massively preserved. The paleoclimate changes from torridity and aridity to warmth and humidity, with the temperature evidently descengded, then ascended in a litter range. The result is basically consistent with paleoclimate by the palynological analysis.

朝73井TOC、δ13Corg有机地球化学指标的分析结果表明，TOC、δ13Corg的变化对该沉积时期的古环境、古气候也有很好的响应，该沉积期湖水位不断上升，湖生生物逐渐发展并繁盛起来，水体含氧量减少，湖底有机质的保存环境逐渐变为强还原环境，大量有机质被埋藏并保存，而古气候在泉头组/青山口组界线上下由炎热干旱变得温暖湿润，气温有明显下降，但随后又有小幅的上升，与孢粉分析的古气候变化特征基本一致。

The changing climate first affects the structure of alpine timberline at an autecological level, and further affects the movement of the timberline as a whole.

气候变化首先从个体的水平影响林线的内部结构，然后才影响到作为整体的林线的推移，因此研究乔木个体生理活动与气候条件之间的关系，对于研究高山林线对气候变化的响应具有重要意义。

Based on the history data, field survey and sampling data of the Daihai Basin, the global climate change and it incluced-lake water level and hydrochemical characteristics changes under human activities in the late 50 years, as well as their influences on environment were analyzed.

气候变化和人类活动是环境问题的两个重要驱动因素，在过去的50年中，全球气候变化异常活跃，人类活动对自然的影响也在不断加剧。水文要素因其在自然地理环境中的特殊位置对区域环境变化有较强的敏感性，尤其是作为流域&汇&或节点的湖泊，更是对流域环境变化有综合指示作用。

The dissertation modifies the model of Holdridge's indexes of lifezone according to the features of the ecological climate of Xinjiang. The influence of the variation of vegetation caused by the climate variation of Xinjiang in recent decades is also analyzed. In recent 40 years, the type of life zone hasn't changed, the area and number of patch changed only. The diversity changed but not too much..That is, diversity of life zone changed in little range, the whole entiroment is still be a rather stable state, whill be goo for desertation expand contrandictorily.

根据新疆生态气候特征和生物地理规律对Holdridge生命地带分类模型进行修正，分析新疆近几十年来气候变化所引起的植被变化对于新疆土地荒漠化的影响。40多年来，新疆生命地带的类型数量并没有产生变化，只是各类型的面积和斑块数的变化，多样性有所波动，但是波动不大，也就是说生命地带多样性的震荡幅度不大，整个生态环境处于一种相对稳定的状态，这种稳定的生态环境状态有利于荒漠化的逆向发展； 7。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。