Results 91 to 100 of about 427 (193)

宁夏贺兰山岩羊种群的管理和保护

open access: yes野生动物学报, 2004
岩羊(Pseudois nayaur)一又名蓝羊、石羊、青羊、崖羊,属偶蹄目牛科羊亚科,是国家二级保护动物,被世界自然保护联盟动物生存委员会(IUCN/SSC)收录为低危种。它是一种典型的晨昏性活动动物,栖息于高海拔的高原 ...
刘振生, 曹丽荣, 王小明
doaj  

贺兰山第四纪冰川特征及其与气候和构造之间的耦合关系 [PDF]

open access: bronze, 2012
威 张   +5 more
openalex   +1 more source

The strong earthquakes and seismogenic structures in eastern margin of Tibetan Plateau and adjacent areas: A preface for the special topic [PDF]

open access: yes
The eastern margin of the Tibetan Plateau is composed of multiple secondary tectonic units which constitute typical “multi-level extrusion-rotation active tectonic system”.
Bo Zhang   +4 more
core   +1 more source

Wei-Jin Dynasty: Talking about seismic activity [PDF]

open access: yes
Talking about China’s seismicity research inevitably involves an outstanding female scientist, Mei Shirong. She does not have the title of academician, but is recognized and irreplaceable as an academic leader in the field of earthquake prediction in ...
Rui Feng
core   +1 more source

Genetic Types and Ecological Potential of Selenium-Enriched Land in the Northern Margin of the Qinghai—Xizang Plateau [PDF]

open access: yes
The study of the genesis type of selenium (Se)-enriched land found in the Qinghai—Xizang Plateau can provide a scientific basis for the construction of the research, development and utilization system of Se resources on the Qinghai—Xizang Plateau and has
Bingyan JI   +6 more
core   +1 more source

贺兰山西坡阿拉善黄鼠消化道形态的季节变化

open access: yes野生动物学报, 2018
为探讨阿拉善黄鼠(Spermophilus alaschanicus)的消化道特征对贺兰山荒漠环境的适应,对野生环境中阿拉善黄鼠消化道各项指标进行了测定。实验分别测定了不同季节胃、小肠、大肠、盲肠的长度、鲜重及净鲜重。结果表明阿拉善黄鼠消化道的总鲜重和总长度有显著季节差异,秋季较高,夏季次之,春季最低; 胃和盲肠鲜重以及盲肠净鲜重有显著季节差异,以秋季最重,春夏较轻; 小肠和盲肠的长度有显著季节差异,两者秋季最长,小肠夏季居中,春季最短,而盲肠春季居中,夏季最短 ...
王志勇 刘 鹏 燕永彬 滕丽微 高 惠孙玉姣 王继飞 刘振生
doaj  

Development of overlying strata collapse and water-conducting fractured zone in shallow coal seams mining [PDF]

open access: yes
Shallow underground mining of coal seams has significant impacts on the overlying rock formations, not only exacerbating surface subsidence but also potentially leading to surface and groundwater loss, thereby affecting the development and safety of the ...
Hui SHANG   +4 more
core   +1 more source

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