THE ECOLOGICAL FEATURES AND ECOLOGICAL CONSTRUCTIONS OF A MIRE IN CHINA

来源 :Chinese Geographical Science | 被引量 : 0次 | 上传用户:Fijy520
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
A mire as an ecosystem, usually is considered as an aquatic ecosystem,or a terrestrial ecosystem. The author thinks that mire is a special ecosystem between these two ecosystems, and proposes the new concept that a mire is a natural ecosystem with tra
其他文献
【摘 要】随着新课改的不断深入,中职学校的教育教学工作也进行了相应的改革。体育教学是中职教学工作的重要组成部分。体育课程教学,不仅可以提升学生的身体素质,还能有效地缓解心理压力。但是,现阶段中职体育教师对体育教学的认识不够深入,在实际的教学过程中忽略了中职体育教学的特点和本质,致使中职教育教学改革工作成效不明显。针对中职体育教学的实际情况,不断创新体育教学的方法,及时解决改革过程中遇到的问题,提高
The 4.45 m-thick pure ice lens have been discovered firstly at depth from 19.81 -24.26 m in the bore No.6, which locates in north bank of the Ngoring Lake. In source region of the Huanghe (Yellow) Riv
黑龙江垦区地处东亚季风气候区,冬季寒冷干燥,夏季炎热多雨,春季多大风.由于受特殊的自然地理和人为活动的影响,致使垦区的生态环境不断恶化,水土流失问题不断加剧.当前,在全
在知识经济时代,企业之间的竞争在很大程度上取决于他们使用知识和创新知识的能力,而致力于将企业的知识资源转化,提高组织效率、反应能力,以及创新能力,从而提高企业竞争力,
一、市场经济决定服务文化的特征1.市场经济是服务经济,服务文化是市场经济的产物.
目的:探讨人工髋膝关节置换术后深静脉血栓形成的护理对策。方法:选取笔者所在医院采取人工髋膝关节置换术的老年患者80例进行研究,80例患者中男37例,女43例。出现膝骨关节炎有
Soil samples from several forest areas in China were analyzed by X-ray powder diffractometry after mineral separation and enrichment. The density gradient separ
The tropical rainforest in Xishuangbanna, Yunnan Province of China, is introduced in detail in this paper. Situated at the northern margin of tropical mainland SE Asia and controlled by monsoon climat
一要想切实堵塞国有资产的流失,必须认真研究和分析当前国有资产流失的原因和途径.造成国有资产流失的原因是多方面的,在此,仅就黑龙江垦区国有资产流失的主要原因分述如下.
期刊
The township industry in Shanghai suburbs has undergone a rapid development in the past few years. Aimed at studying the spatial law of the township industry in Shanghai suburbs, three kinds of indexe