【摘 要】
:
宁夏贺兰山国家级自然保护区位于阿拉善高原和银川平原分界岭的贺兰山东坡,地跨两市六县(区),1988年国务院批准为国家级自然保护区,2003年经国务院批准,总面积调整为309.4万
【机 构】
:
宁夏贺兰山国家级自然保护区管理局,
论文部分内容阅读
宁夏贺兰山国家级自然保护区位于阿拉善高原和银川平原分界岭的贺兰山东坡,地跨两市六县(区),1988年国务院批准为国家级自然保护区,2003年经国务院批准,总面积调整为309.4万亩,2011年经国务院批准,国家级自然保护
The Helan Mountain National Nature Reserve in Ningxia is located on the east slope of Helan Mountain in the boundary of Alashan Plateau and Yinchuan Plain. It crosses over six counties (districts) in two cities and cities. In 1988, the State Council approved it as a national nature reserve. In 2003, The area is adjusted to 3.094 million mu, approved by the State Council in 2011 and nationally-level protected
其他文献
Umbrella-shaped assembly of cylindrical fins is optimized by adopting analytical method and taking dimensionless mean thermal resistance (MTR) as performance in
采用真空镀膜技术在石英基板上制备了纯As2S8以及掺杂As2S8平面波导,通过棱镜耦合技术观察了光阻断效应。结合S和As的外层电子构型,分析了样品内部的化学键结构,利用电子能带
A mathematical model based on Darcy’s law and electroosmosis equation in porous media is developed and two parameters named electroosmosis coefficient K, and r
Based on the results of 216 points of magnetotelluric sounding carried out in the Qinling and its adjacent region, we established a 3 D electrical structure mo
Master event location method was described in detail in this paper Some problems in the application of masterevent method have been analyzed and some improvemen
请下载后查看,本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
1990年代,数学家阿纳托利·福缅科院士及其若干追随者阐述新年代学(the New Chronology,由俄罗斯数学家阿纳托利·福缅科和格列布·诺索夫斯基创立的学说,内容挑战传统年代学
The evaluation of thermal resistance constitution for packaged AlGaN/GaN high electron mobility transistor (HEMT) by structure function method is proposed in th
通讯员牟发章报道国家林业局局长贾治邦在重庆召开的全国森林资源管理工作会议上透露,到“十二五”期末,我国林地保有量将增加到3.09亿hm2,森林面积将达到2.07亿hm2,森林植被
火吉坪金矿位于中秦岭礼县—祚水褶皱系西段,吴茶坝花岗岩体(又称中川岩体)外接触带上。矿床规模为小型。1矿床地质特征(1)矿带特征矿区可分为两个含矿带。Ⅰ矿带位于矿区的北部郭笑