1) eco-environmental change
生态环境演变
1.
The Zi-wuling forest region provides a good study area for tracing back eco-environmental change and natural erosion and man-made accelerated erosion.
黄土高原大部分地区因严重的土壤侵蚀,已丧失原有的自然景观,子午岭林区为追溯研究自然侵蚀和人为加速侵蚀与生态环境演变提供了研究基地。
2) seasonal evolvement of ecological environment
季节性生态环境演变
3) environmental evolution
环境演变
1.
The Study of Environmental Evolution Stnce Late——Pleistocene in Wutai Mountain Area Shanxi Province;
山西省五台山地区晚更新世以来环境演变的研究
2.
The Neogene Deposition and Environmental Evolution in Southeast Longxi Basin;
陇西盆地东南隅新近纪沉积与环境演变
3.
Based on two sets of land use data(1960 and 2003),and by means of the techniques of Geographical information system(GIS),and on the basis of on-the-spot investigation,this paper mainly studied the environmental evolution of the waterfront of Yongjiang river.
利用1960年航摄南宁市地形图和2003年南宁市土地利用图,借助地理信息系统技术,在实地调查的基础上,结合南宁邕江滨水区的区域特征,对其环境演变进行分析。
4) environment evolution
环境演变
1.
Based on data of ancient culture sites and contrast the distribution characteristics of sites was imestiyated achievements in scientific research,the record of ancient sites and environment evolution.
通过对中国北方地区新石器文化遗址的14C数据和遗址分布特点与环境演变研究成果的对比研究得出:在暖湿气候条件下,中原文化北上,东部文化西进,新石器文化稳定发展;气候转为干冷时,新石器文化向东向南迁移。
5) Environmental changes
环境演变
1.
For more than ten years, many studies related to the lake sediments and environmental changes on Tibetan Plateau have been carried out.
从空间尺度、不同时间尺度、重大气候环境变化事件、与其他研究结果的对比以及代用指标与气候要素的定量关系研究等几个方面总结了近十余年来青藏高原湖泊沉积与环境演变研究的主要成果。
2.
Increasing concern has been given to the implications of GIS in the study on environmental changes in the world as well as in China.
基于环境演变信息的属性分析和分类,建立了环境演变信息数据库系统;并在对环境演变研究的问题和表达方式进行了较详细研究的基础上,完成了相应数据分析模块的建设。
6) environmental change
环境演变
1.
Field investigation,magnetic susceptibility,grain-size analysis and optically stimulated luminescence(OSL) dating in a loess profile of Holocene on north bank of the Yangtze River,Nanjing,have revealed the characteristics of aeolian dust deposition and pedogenic environmental change during the formation of the first paleosol.
通过对南京江北地区一个典型剖面(TZC剖面)进行野外调查、室内磁化率、粒度等替代性指标分析和光释光断代研究,探讨了该地区第一层古土壤形成时的粉尘堆积与成壤环境演变特点。
2.
210Pb and 137Cs dating method was used to study recent environmental change of lakes.
选择长江中下游的典型湖泊洪湖、巢湖、石臼湖和太湖,采集了沉积柱样,测定了总有机碳、总氮、总磷,并采用210Pb和137Cs定年以研究湖泊近代环境演变。
补充资料:地球生态环境资料在哪
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