A research with Bacillus mucilaginosus cultured in nitrogen-free medium for forming a flocculant material to adsorb Cr+6 was conducted to determine the effects
In order to improve the precision of soil organic carbon (SOC) estimates, the sources of uncertainty in soil organic carbon density (SOCD) estimates and SOC sto
城市功能结构的探索对人们理解城市及城市规划有着重要的作用。兴趣点(point of interest,POI)数据作为城市设施的代表,被广泛应用于城市功能区提取。以往对城市功能区研究大多只考虑了POI统计信息,忽略了POI中丰富的空间分布信息,而POI空间分布特征与区域功能密切相关。本文利用空间共位模式挖掘方法挖掘POI潜在上下文关系,提取POI空间分布信息,构建区域特征向量,并进行区域聚类;再利
With both field investigation and pure culture experiments, the occurrence and optimal essential growth of mycorrhizal fungi with oaks in Dandong Region of Liao
More and more linear alkylbenzene sulfonate (LAS) has contaminated the water and soil via pollution discharge,making it important to identify the ecological beh