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151.
152.
结合医院开展能源管理体系建设的工作要求,通过对能源管理体系建设和精细化管理各自特点以及两者之间相关性分析,找出共同点与相互依存的关系。继而以能源管理体系建设为抓手,分阶段实现医院后勤精细化管理的战略目标。
相似文献153.
154.
广东内伶仃岛自然保护区的苔藓植物 总被引:3,自引:0,他引:3
报道广东内伶仃岛自然保护区的苔藓植物共19 科、34 属、61 种, 其中藓类13 科、26属、50 种, 苔类6 科、8 属、11 种。全缘疣鳞苔( Cololejeunea schwabei) 等3 种苔类和拟阔叶小石藓( Weisia platyphylloides) 等10 种藓类为广东省新记录。分析了保护区内的苔藓植物区系特点, 并与车八岭、黑石顶、鼎湖山及南岭自然保护区的苔藓植物区系进行了比较。研究表明, 内伶仃岛的苔藓植物区系由于受地理位置及地形特征的影响而具有一定的特殊性。 相似文献
155.
关于新疆的粘菌,过去仅知8种,且无一为绒泡菌。本文第一作者于1994年在新疆进行了粘菌资源调查,在随后的研究中共明确了50多个种,有10种为绒泡菌,其中的几个种,如垂头绒泡菌Physarumnutans(Bull.)Pers.是常见和广布的,但也有几种是特殊的和稀有的。本文报告了5种绒泡菌:橙红绒泡菌P.aurantiacum S.L.Chen,Y.LietH.Z.Li和侧扁绒泡菌P.loratumS.L.ChenY.Li etH.Z.Li是新种,黄白绒泡菌P.albescensEllisexT.Macbr.和团聚绒泡菌P.conglomeratum(Fr.)Rostaf.是中国新记录种,已知种黄绿绒泡菌P.virescensDitmar显然少见,国内此前仅知分布于福建。橙红绒泡菌P.aurantiacumS.L.Chen,Y.LietH.Z.Li的孢丝近似钙丝菌状,由或大或小的石灰结将许多细短的孢丝线联成致密的白色网体,这使其被归入绒泡菌属,并与同属其它种相区分;侧扁绒泡菌P.loratumS.L.Chen,Y.LietH.Z.Li的联囊体虽发达而侧扁,但顶部无预成开裂线,在相似种中也易识别。本文对这两个新种 相似文献
156.
Studies on the pollen from cores of Lake Hidden (29~48.77' N, 92~22.37' E) and Ren Co (30%3.97'N, 96~40.97'E) in Southeast Xizang (Tibet) showed climatic changes and the evolution of vegetation since the last Glacial Maximum (LGM). Before 16 ka BP pollen assemblages were dominated by Chenopodiaceae (20% -50% ) and Artemidis (10% ~ 30% ) and pollen influx values were very low from Lake Ren Co in Basu county. The vegetation around the lake was probably a desert-steppe during the LGM. The data also suggest that the climate in the Basu area was cold and dry during the LGM and the last glacial time. The mean annual temperature was probably 4 ~ 6 ℃ colder than the present, and the mean annual precipitation was only 250 mm, about 40% of the present. The Southwest monsoon became stronger from 12 ka BP to 6 ka BP reaching its acme by 7 ka BP, but weakened gradually from 5 ka BP to the present. The paleovegetation was dominantly forest or forest-meadow around Lake Hidden and Ren Co during the 9.2 ~ 5 ka BP. The mean temperature in January was probably 2 ~ 3 ℃ higher than the present, and the mean annual precipitation was 100 mm more than the present. The timing of vegetational and climatic changes based on pollen records generally supports the results of global climatic-model experiments that predict a strengthened monsoon system during the early to middle Holocene followed by a weakened monsoon system. 相似文献
157.
Triodanis Raf. (Campanulaceae), a genus native to America and
Mediterranean regions, is here reported from China for the first time. Two
species (T. perfoliata and T. bifiora) are identified. The former was collected in
Chong’an,and Jianning, Fujian Province, the latter was collected from Anqing,Anhui Province, Putuo, Zhejiang Province and Jiangle, Fujian Province. 相似文献
158.
Selincuo (31°34′–31°57′N, 88°31′–89°21′E)is one of the great lakes in northern Xizang surrounded by alpine grassland, composed mainly of Stipa purpurea, S, subssessifolia var. bassipulomosa. A 3.08 m long core has been taken from a water depth of 27 m, 3 km to the north from the lake. Palynological records of the core combined with surface sample results have revealed from the regional as well as local vegetational and environmental history since the last 12 000 a BP, a very low pollen concentration (19–209 grains/g), mainly of airborne pollen, which indicated a treeless alpine sparse vegetation. A great vegetation change took place at Ca. 9 600 a BP when alpine sparse vegetation was replaced by alpine grassland lasting until Ca. 6 000 a BP. Quite a number of tree pollen grains found in this time interval might be explained as a result of expansion of forests somewhere around the Xizang Plateau. These changes must have caused by climatic warming during the Early Holocene. During the last 6 000 years the vegetation had remained as the alpine grassland, although probably more luxurouste than before, but their was an obvious increase of arboreal pollen, such as the increase of Abies during Ca. 6 000–4 000 a BP, Picea 4 000–2 200 a BP, Pinus 2 200–1 000 a BP which indicated continuous expansion of forests growing around the plateaus. During the last 1 000 years both the concentration and proportion of the arboreal pollen decreased and those of Cypraceae pollen increased sharply. This might mean a reduction of the forests around the plateau and an expansion of swamps around the lake. 相似文献
159.
160.
目的 了解河北省三级甲等综合医院图书馆网站建设的现状。方法 选取河北省22家三级甲等医院网站,采用百度引擎对医院网站进行搜索,对出现的图书馆网站及相关信息进行记录、归类和整理。结果 被调查的22家医院图书馆网站中,7家(33.33%)医院网站无图书馆网站及其相关信息;6家(28.57%)在医院网站主界面设置图书馆链接;8家(38.10%)医院在主网页中科教栏及其他栏目中涵盖图书馆链接,且多数医院图书馆网站信息更新频率慢。结论 河北省三级甲等综合医院图书馆网站建设较为落后,应采取相应措施,促进医院图书馆网站逐步完善。 相似文献