【摘 要】
：
The construction of an ecological security pattern(ESP) is an important way to ensure regional ecological security and to achieve sustainable regional development. It is also one of the hotspot topics
【出 处】
：
Journal of Mountain Science
论文部分内容阅读
The construction of an ecological security pattern(ESP) is an important way to ensure regional ecological security and to achieve sustainable regional development. It is also one of the hotspot topics of landscape ecology research. This paper identifie
其他文献
9月15日,自然资源部向联合国捐赠2020版30米全球地表覆盖数据,这是继2014年向联合国捐赠数据以来,中国再次向国际社会提供更新地理信息公共产品。全球地表覆盖分布及变化反映人与自然相互作用,是生态环境监测、气候变化研究、可持续发展规划的重要基础信息。该数据被联合国系统多个专门机构、130多个国家用于全球变化分析、可持续发展规划等领域,有效服务于全球治理体系改善和2030年可持续发展议程落实。
To obtain accurate spatial distribution maps of soil organic carbon(SOC) and total nitrogen(TN) in the Hetian Town in Fujian Province,China,soil samples from three depths(0-20,20-40,and 40-60 cm) at 5
Compacted soil has an adverse effect on plant roots and affects water and nutrient availability.However,different degrees of soil compaction may be suitable for growth and development of different und
土地整治是通过行政、法律、经济等方式,针对一定区域内的土地进行工程建设,对农田、沟渠、林区、村屯等进行综合性的施工,将分散和闲置的土地集中管理,实现土地资源的合理利用。在土地整治项目的整个施工过程中,应用数字测绘技术,对土地进行准确的测量,为土地的开发利用做好准备;在施工阶段,检验施工进度和质量,及时整改施工中出现的偏差;在项目竣工验收阶段,对整个项目进行航拍,以及精准地测量,提高项目验收的质量。
在具体的工作中,通过对农村范围实施全面查清,通常情况下,包括宅基地、集体建设用地等,与此同时,还应该查清每一宗土地的权属、位置等,再者,对建筑物、构筑物的具体情况实施全面的清查,这样一来,在一定程度上能够为相关工作的稳定运行提供有效的资料。本文首先分析其调查意义和工作任务,接着对流程设计进行研究,然后分析了具体应用,最后对技术要点、难点进行研究,希望通过本文的研究能够给相关人士带来一定的借鉴意义。
Understanding the dynamics of soil carbon is crucial for assessing the soil carbon storage and predicting the potential of mitigating carbon dioxide from the atmosphere to the biomass and soil.The pre
A total of 900 soil samples were collected from five habitats,including primary coniferous broad-leaved mixed forests,secondary coniferous broad-leaved mixed forests,secondary broad-leaved forests,sec
Soil microbial biomass is an important indicator to measure the dynamic changes of soil carbon pool.It is of great significance to understand the dynamics of soil microbial biomass in plantation for r
2004年7月28日,中国政府在北极斯瓦尔巴群岛的新奥尔松建立了第一个北极科学考察站——"中国北极黄河站"(地理坐标为78°55′N、11°56′E),成为世界上第8个在此建立北极科考站的国家。中国的北极科考之路要比南极晚很长时间。中国第一个南极科学考察站——长城站于1985年2月14日北京时间22时建成,地点是在南设德兰群岛的乔治王岛(地理坐标为62°13′S、58°58′E)。
The Huanghe River(Yellow River) is known by its high suspended sediment concentration(SSC) in its river mouth tidal flat. However, the factors controlling the high SSC over there are not well understo