排序方式: 共有13条查询结果,搜索用时 7 毫秒
1.
8月10日,由大桂山林场与广西宏城工业园投资有限公司合作建设的贺州市八桂建材工业基地举行开工奠基仪式。广西金门建材有限公司和广西恒希建材有限公司落户大桂山林场工业园区。贺州市委书记彭晓春,自治区林业厅副厅长李明琪,中国陶瓷工业协会秘书长浦永祥出席仪式,并为项目剪彩、奠基培土。 相似文献
2.
3.
4.
5.
珠江三角洲陶瓷工业污染区植被受害证据与启示 总被引:8,自引:0,他引:8
以长期暴露在大气污染胁迫下的村边林为对象,进行植物群落结构调查、植物受害分析,探讨了陶瓷工业污染排放对植被的影响。调查样地位于广东南海区五星村边坡地的半自然次生林内,乔木层和灌木、草本幼苗层的调查分别在10个10m×10m和4个5m×5m的样方内进行。该森林群落以隆缘桉和尾叶桉数量占优势,其次是乡土树种鸭脚木、泥竹,重要值依次为26.75、17.08、16.27和11.50。隆缘桉和马尾松冠层枝叶完全枯死、脱落,受害程度达100%;其次是泥竹和南岭黄檀受害程度分别为85.1%和68.3%。尾叶桉、朴树、越南山龙眼、阴香、黄荆受害程度中等,在45%—57.5%之间;其它伴生本土种类如鸭脚木、珊瑚树、酒饼叶、等的重要值较低且表现出受害程度较严重。和上层乔木比较,林下植被受污染的伤害大大降低。桉树类树种因其速生、快速郁闭等特点被认为是华南荒山、退化丘陵地区植被恢复的重要种类,但在重度污染地区已面临严重威胁,而某些乡土树种在污染地区则显示出较强的抵御大气污染的能力。本文结果为污染地区森林资源管理,退化生态系统植被恢复之树种选择以及进一步开展乡土树种抵御大气污染胁迫的过程机制与功能特征的研究提供科学基础。 相似文献
6.
9月17日,由中国工艺美术协会、中国陶瓷工业协会、省中小企业服务局、省工艺美术行业协会和许昌市人民政府主办,省文化厅、省旅游局和河南省陶瓷玻璃行业管理协会协办,禹州市人民政府承办的第五届禹州·中国钩瓷文化节暨第四十三届国际陶艺学会大会禹州分会在禹州市隆重开幕。 相似文献
7.
The study area is located in Duhok and Sulaimania province in Kurdistan region, lraq. Study soils developed from parent material that has derived from limestone. Randomize, composed and disturbed surface soil samples were collected. The bulk soils were air dried, crushed and passed through 2 mm sieve. Standard methods were used for chemical, physical, geotechnical and mineralogical analyses of soil samples. The results indicated that the study soils texture were clay to loam clay, this texture was considered as suitable for ceramic and pottery industries as a result of increasing clay contents that ranged between 301 g/kg and 676 g/kg. Soil consistence depending on geotechnical properties increased the ability of study soils for resistance rapture and deformation. Existence the high amount of cementing agents in study soils such as organic matter, iron oxides and particularly total carbonate (247.2-308.8 g/kg) act to reduce the bad effect of the smectite minerals group (high shrinkage) in soils of study locations through increasing the resistance of these soils for rupture and deformation. The existing of Kaolinite, palygorskite and chlorite allows clay to be dried in ceramic and pottery industries without cracking from shrinkage. Study soils were different in their colors as a result of existence, different pigmentation materials that led to coloring soils with different colors in turn caused coloring of pottery and ceramic materials. Since, there are no available academic studies or researches about this subject in Kurdistan region in addition the clay pottery and ceramic sector still has a good market at the same time using this type of soils for arts, therefore, this study was conducted. 相似文献
8.
稀土,即稀土元素,为15个镧系元素的合称。它们除在电子、原子能、石油、陶瓷工业和医学上广泛应用外,在农牧渔生产上也有显著的增产作用。 相似文献
9.
10.