1) mid-temperate zone of eastern China
东北中温带
2) Northeast China Transect (NECT)
中国东北样带
1.
First of all, the background of IGBP terrestrial transect and its selection standards as well as the allocation and characteristics of Northeast China Transect (NECT) are described, and then the advance in NECT durin.
在介绍国际全球变化陆地样带提出的背景与选定标准、中国东北样带的位置与特征的基础上 ,较系统地总结了近年来中国东北样带的研究进展 :建立了用于模型发展和比较的不同时间和空间尺度的中国东北样带数据集 ,从机理上初步探讨了全球变化对于森林、草甸草原和典型草原的可能影响 ,发展了用于古植被气候重建的植物种与表土花粉类型的定量关系模型、多尺度耦合的羊草草原生态系统动态模型和基于林窗原理的森林生态系统动态模型 ,并对全球变化对中国东北样带的影响进行了初步评估 ,进而针对我国作为发展中国家 ,财力有限的特点 ,提出未来中国东北样带研究拟充分利用我国特殊的生态环境与区域特色 ,围绕“生态过程与生态安全及其对全球变化的响应与反馈”这一关键科学问题 ,做出一些在国际上既有显示度 ,又服务于我国社会经济可持续发展的研究成果。
2.
The Northeast China Transect (NECT),which is assigned along the latitude 43°30 N in the mid-latitude of temperate zone and located at 112°～130°30 E and 42～46° N,is one of the fifteen global transects recognized by IGBP.
根据2001年中国东北样带土壤全氮和有效氮的实测数据,结合CO2浓度倍增与不同土壤湿度的模拟试验数据,对土壤全氮和有效氮的梯度分布、影响因子分析及其对气候变化的响应进行研究。
3.
The Northeast China Transect (NECT) is one of the proposed initial set of IGBP (International Geosphere-Biosphere Program) terrestrial transects, which is located in the mid latitude semi-arid region of northeastern China.
中国东北样带是全球变化研究中首选样带之一 ,本文分析了分辨率为1km× 1km的NDVI年内季节变化的两个特征值 :年均NDVI(NDVI I)和NDVI年内极差 (NDVI MM)在样带内 5种不同植被类型间的变化及其与年平均气温和降水量之间的相关关系。
3) Northeast China Transect
中国东北样带
1.
The changes of water-use efficiency and stoma density of Leymus chinensis along Northeast China Transect;
中国东北样带关键种羊草水分利用效率与气孔密度
2.
Study on Biomass Changes of Plant Ecological Type Groups in the Leymus chinensis Communities along Northeast China Transect;
中国东北样带羊草群落植物水分生态类型功能群生物量变化研究
3.
Spatial Characteristics and Change for Tree Species (Genera) Along Northeast China Transect (NECT);
中国东北样带树种 (属 )的空间特性及变化(英文)
4) NECT
中国东北样带
1.
On the basis of selected 7 sample areas along NECT according to the land-use and land cover,this paper analyzed the land-use change relating to the land-use structure and intensity in NECT during 1984-1996.
在分区选择典型样点的基础上，从土地利用结构类型和土地利用强度等方面对中国东北样带（ＮＥＣＴ）近年来的土地利用变化进行分析，揭示出样带上土地利用发生变化较剧烈的区域为农牧交错带，变化的原因主要是人类活动强度的增加。
2.
In this paper, the spatial distribution of soil organic carbon and active carbon along NECT and their controlling factors were analyzed based on data from field survey along Northeast China Transect (NECT); Moreover, their responses to environmental changes were discussed by means of the simulated experiment under doubled CO2 and different soil water stresses.
本文基于中国东北样带(NECT)的长期研究资料，分析了土壤有机碳及活性有机碳的空间分布特征，探讨其主导影响因子并建立相关模型；结合CO_2浓度倍增和不同土壤湿度的室内模拟实验，初步分析了土壤有机碳、活性有机碳对环境变化的响应，得到如下结论： 1。
6) Temperature in North-East China
东北温度
补充资料：中温带
中温带夏季温暖、冬季寒冷，冬季长达5个月，我国东北省份的气候就属于中温带气候。年均温约10° c左右，干温湿季分明，全年湿度较大。年降水量平均为1500毫米左右。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条