Analysis of the Capacity of Wellspring Conservation in Limestone Areas of Jinan

来源 :中国人口.资源与环境:英文版 | 被引量 : 0次 | 上传用户:Gloria_SHU
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
<正>Spring water in the city of Jinan conies from the limestone areas. Understanding the capacity of wellspring conservation is a critical point to resume the perennial spewing of the spring water. The vegetation, soil, and other natural and human as
其他文献
本文提出了一种新型防尘散热开关制作方案,通过改进和设置保护盖、荧光条、儿童防护门、散热板,有效解决了以上问题。测试结果表明,该开关满足标准要求,在实际生产生活中具有
<正> This paper introduces the recent appearance of a circular economy in such industrialized countries as Germany and Japan and outlines its concept and princi
期刊
本文探讨了影响变电运行设施常见的安全故障,并重点对变电运行设施维护技术进行了深入研宄。
Along with the economic development and the acceleration of urbanization,urban construction land expands rapidly in China,and has resulted in a series of socio-
本文运用数理统计理论,对试题质量分析进行了初步探索,改变了传统的一考全了的做法,这将对提高命题质量,提高考试信度具有一定的意义。
春季患头痛的人特别多。这是因为春天白昼时间明显延长,早晨天亮得早了。人脑中的松果体根据光亮分泌激素,使人早早醒来。人的睡眠时间因为早醒而减少了近30分钟,造成睡眠不足,引
High population growth and continued economic development have caused serious environmental damage in the Asia Pacific region.However,the recent experience is t