西北边缘
西北边缘的相关文献在1996年到2017年内共计64篇,主要集中在农作物、畜牧、动物医学、狩猎、蚕、蜂、建筑科学
等领域,其中期刊论文64篇、专利文献23866篇;相关期刊50种,包括中国地产市场、今日科苑、初中生学习·博闻等;
西北边缘的相关文献由97位作者贡献,包括余建军、姚仕林、曹桂玲等。
西北边缘—发文量
专利文献>
论文:23866篇
占比:99.73%
总计:23930篇
西北边缘
-研究学者
- 余建军
- 姚仕林
- 曹桂玲
- 李小刚
- 杨勇
- 3.扎班巴尔科
- CHEN Hongxiang
- ChengQi ZHANG
- HOU Ying
- LI Zhuolun
- NIU Zhenmin
- NaiAng WANG
- WANG
- WANG Jianyu
- WANG Naiang
- Yu LI
- Yue
- ZHANG Xuemin
- ZHENG Fang
- Л.М.Перфенов
- Н.А.Берзин
- 中国公路编辑部
- 买买提·哈迪尔
- 任宪法
- 余渝
- 刘小平
- 刘广奇
- 刘晓红
- 刘海波
- 刘继华
- 刘诚
- 刘鹏
- 刽庆连
- 卿发红
- 卿发红1
- 吐逊·阿不都克热木
- 吕炳勇
- 吴翠花
- 子文
- 孙建勇
- 宋延山
- 尹一
- 崔龙
- 康红勤
- 康长生
- 廖圣晓
- 张世春1
- 徐建
- 成俊峰
- 曹辉
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卿发红
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摘要:
绵竹市地处四川盆地川西平原西北边缘,属县级市,自然条件优越,其耕作制度以一年两熟制为主,大春主产水稻、玉米,小春主产小麦和油菜。小麦是小春生产主要粮食作物,在绵竹市粮食生产中占有举足轻重的地位,全市常年种植面积在1.47万hm~2左右,平均单产5.25 t/hm~2,总产7.72万t。
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HOU Ying;
NIU Zhenmin;
ZHENG Fang;
WANG Naiang;
WANG Jianyu;
LI Zhuolun;
CHEN Hongxiang;
ZHANG Xuemin
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摘要:
The Lenglongling Mountains(LLM)located in northeastern part of the Tibet Plateau,belong to a marginal area of the East Asian summer monsoon(EASM)and are sensitive to monsoon dynamics.Two tree-ring width chronologies developed from six sites of Picea crassifolia in the LLM were employed to study the regional drought variability.Correlation and temporal correlation analyses showed that relationships between the two chronologies and self-calibrated Palmer Drought Severity Index(sc_PDSI)were significant and stable across time,demonstrating the strength of sc_PDSI in modeling drought conditions in this region.Based on the relationships,the mean sc_PDSI was reconstructed for the period from 1786 to 2013.Dry conditions prevailed during 1817–1819,1829–1831,1928–1931 and 1999–2001.Relatively wet periods were identified for 1792–1795 and 1954–1956.Spatial correlations with other fourteen precipitation/drought reconstructed series in previous studies revealed that in arid regions of Northwest China,long-term variability of moisture conditions was synchronous before the 1950 s at a decadal scale(1791–1954).In northwestern margin of the EASM,most of all selected reconstructions had better consistency in low-frequency variation,especially during dry periods,indicating similar regional moisture variations and analogous modes of climate forcing on tree growth in the region.
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老广鈿;
谢礼波
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摘要:
这块石头,表面粗糙,颜色古旧,光泽晦暗,造型却非常奇特,你可以把它看作一具栩栩如生的恐龙化石,也可以把它看作一株千年不倒的胡杨。这样,你是把它作为一块具象石来立意创作的。但是,创作者并不这样来处理这块石头,而是把它作为一块意象石来创作的。否则,为什么会把它叫做"魔鬼城"呢?魔鬼城是对戈壁地区雅丹地貌群落的谑称,新疆就有好几处,准噶尔盆地西北边缘距克拉玛依市100公里的乌尔禾矿区是个魔鬼城;哈密市五堡乡以南20公里处也有个魔鬼城;昌吉州奇台县的将军戈壁深处也有个魔鬼城。它们的面积都为几十平方公里。
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