Elemental concentration in a potentially protected forest catchment in Singapore
Elemental concentration in a potentially protected forest catchment in Singapore
复制标题
新加坡潜在受保护森林流域的元素浓度
DOI：
10.1007/s10201-020-00620-4
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发表时间：
2020
期刊：
影响因子：
1.6
通讯作者：
S. Liong
中科院分区：
文献类型：
--
作者：
C. Nguyen;Dong Eon Kim;Jiandong Liu;Yixiong Cai;S. Liong
2017年8月至2018年9月，在新加坡一个小德马湾森林集水区进行的土壤调查和水文调查活动中，共收集了24个土壤样本，包括4个地下样本、34个水样和17组水文调查数据。这项研究旨在通过评估元素浓度及其可能的来源来了解和评估集水区的土壤和河流状况。德马湾流域在土壤和溪水中都表现出明显的中性环境，两种基质中的钙、镁和钡含量都很高。德马湾森林中的大多数元素比新加坡其他森林集水区的元素浓度更高，尽管我们认为它们是自然发生的，主要是因为集水区的土壤和溪流非常接近。这些元素很可能来自于下伏的冈巴克诺利特地质(对于土壤)和本土土壤(对于溪水)。尽管集水区处于自然状态，但鉴于各种金属的富集度，对集水区的局部人为干扰是明显的。因此，鉴于德马湾森林中山溪的敏感性质，需要进一步调查和管理，该森林被认为是新加坡稀有和重要的生物多样性保护生境之一。
A total of 24 soil samples, including 4 subsurface, 34 water samples and 17 sets of hydrological survey data were collected in a soil investigation and hydrological survey campaign from August 2017 to September 2018 at a small Dermawan forest catchment, Singapore. The study was to understand and evaluate the catchment’s soil and stream status through the assessment of elemental concentrations and their possible sources. Dermawan catchment exhibited a distinct neutral environment in both soil and stream water, with remarkably high concentration of Ca, Mg and Ba in both matrices. Most elements in Dermawan forest have higher concentration than those from other forested catchments in Singapore though we believe that they occur naturally, mainly due to the close proximity between the catchment’s soil and stream. These elements most likely derived from the underlying Gombak Norite geology (for soil) and indigenous soil (for stream water). Despite that the catchment is in natural status, localized anthropogenic disturbance to the catchment is obvious given the enrichment of various metals. Therefore, further investigations and management attention are needed given the sensitive nature of hill stream in the Dermawan forest, which is recognized as one of the rare and important habitats in Singapore for biodiversity conservation.