干旱区生态环境知识资源中心(Arid): A photogrammetry-based approach for soil bulk density measurements with an emphasis on applications to cosmogenic nuclide analysis

Arid

DOI	10.5194/esurf-8-995-2020
	A photogrammetry-based approach for soil bulk density measurements with an emphasis on applications to cosmogenic nuclide analysis
	Mohren, Joel; Binnie, Steven A.; Rink, Gregor M.; Knodgen, Katharina; Miranda, Carlos; Tilly, Nora; Dunai, Tibor J.
通讯作者	Mohren, J
来源期刊	EARTH SURFACE DYNAMICS
ISSN	2196-6311
EISSN	2196-632X
出版年	2020
卷号	8 期号:4 页码:995-1020
英文摘要	The quantification of soil bulk density (rho(B)) is a cumbersome and time-consuming task when traditional soil density sampling techniques are applied. However, it can be important for terrestrial cosmogenic nuclide (TCN) production rate scaling when deriving ages or surface process rates from buried samples, in particular when short-lived TCNs such as in situ C-14 are applied. Here, we show that soil density determinations can be made using structure-from-motion multi-view stereo (SfM-MVS) photogrammetry-based volume reconstructions of sampling pits. Accuracy and precision tests as found in the literature and as conducted in this study clearly indicate that photographs taken from both a consumer-grade digital single-lens mirrorless (DSLM) and a smartphone camera are of sufficient quality to produce accurate and precise modelling results, i.e. to regularly reproduce the true volume and/or density by > 95 %. This finding holds also if a freeware-based computing workflow is applied. The technique has been used to measure rho(B) along three small-scale (< 1 km) N-S transects located in the semi-arid to arid Altos de Talinay, northern central Chile (similar to 30.5 degrees S, similar to 71.7 degrees W), during a TCN sampling campaign. Here, long-term differences in microclimatic conditions between south-facing and north-facing slopes (SFSs and NFSs, respectively) explain a sharp contrast in vegetation cover, slope gradient and general soil condition patterns. These contrasts are also reflected by the soil density data, generally coinciding with lower densities on SFSs. The largest differences between NFSs and SFSs are evident in the lower portion of the respective slopes, close to the thalwegs. In general, field-state soil bulk densities were found to vary by about 0.6 g cm(-3) over a few tens of metres along the same slope. As such, the dataset that was mainly generated to derive more accurate TCN-based process rates and ages can be used to characterise the present-day condition of soils in the study area, which in turn can give insight into the long-term soil formation and prevailing environmental conditions. This implies that the method tested in this study may also being applied in other fields of research and work, such as soil science, agriculture or the construction sector.
类型	Article
语种	英语
开放获取类型	gold, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000595507500001
WOS关键词	FROM-MOTION PHOTOGRAMMETRY ; ECOGEOMORPHIC EXPRESSIONS ; VEGETATION GRADIENT ; PRODUCTION-RATES ; EROSION ; CLIMATE ; BE-10 ; SENSITIVITY ; QUARTZ ; AL-26
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327833
作者单位	[Mohren, Joel; Binnie, Steven A.; Rink, Gregor M.; Knodgen, Katharina; Dunai, Tibor J.] Univ Cologne, Inst Geol & Mineral, Zulpicher Str 49b, D-50674 Cologne, Germany; [Tilly, Nora] Univ Cologne, Inst Geog, Otto Fischer Str 4, D-50674 Cologne, Germany; [Miranda, Carlos] Univ Catolica Norte, Dept Ciencias Geol, Ave Angamos 0610, Antofagasta, Chile; [Rink, Gregor M.] Univ Tubingen, Dept Geosci, Holderlinstr 12, D-72074 Tubingen, Germany
推荐引用方式 GB/T 7714	Mohren, Joel,Binnie, Steven A.,Rink, Gregor M.,et al. A photogrammetry-based approach for soil bulk density measurements with an emphasis on applications to cosmogenic nuclide analysis[J],2020,8(4):995-1020.
APA	Mohren, Joel.,Binnie, Steven A..,Rink, Gregor M..,Knodgen, Katharina.,Miranda, Carlos.,...&Dunai, Tibor J..(2020).A photogrammetry-based approach for soil bulk density measurements with an emphasis on applications to cosmogenic nuclide analysis.EARTH SURFACE DYNAMICS,8(4),995-1020.
MLA	Mohren, Joel,et al."A photogrammetry-based approach for soil bulk density measurements with an emphasis on applications to cosmogenic nuclide analysis".EARTH SURFACE DYNAMICS 8.4(2020):995-1020.