The soil moisture regime of charcoal-enriched land use legacy sites
The soil moisture regime of charcoal-enriched land use legacy sites
复制标题
富含木炭的土地利用遗产地的土壤湿度状况
DOI：
10.1016/j.geoderma.2020.114241
复制
发表时间：
2020
期刊：
影响因子：
6.1
通讯作者：
Bonhage
中科院分区：
文献类型：
--
作者：
Schneider;Hirsch;Bonhage
土壤的地层和性质可因过去的土地使用而发生重大改变，即使是在持续用于林业的地区。过去森林使用的土壤学遗产的一个例子是与残余木炭炉（RCH）有关的土壤。RCH土壤的物理性质和水分状况及其生态影响几乎没有研究，虽然RCH广泛存在于许多森林地区，并可用作模型站点，以研究长期的影响，土壤改良剂与生物炭。我们的研究的目的是通过比较参考森林土壤在德国东北部低地的桑迪基板上的土壤水分状况和水力特性的RCH土壤。RCH和参考土壤进行了研究，在勃兰登堡，德国佩茨历史铁厂周围的林地，结合实验室分析的容重，孔径分布，饱和导水率与基于传感器的监测土壤水分含量和基质势。实验室分析表明，RCH基质的体积密度低，孔隙率高，这主要与较大体积的粗孔和细孔有关。土壤水分监测表明，较高的水分含量在RCH土壤在相对潮湿的条件下和较低的水分含量在干燥条件下，以及强烈的滞后效应，特别是在干燥期后。因此，结果证实，木炭生产的遗产增加土壤水分的空间和时间变化，这反过来又会导致木炭生产地区的生态立地条件的变异性增加。他们还表明，高孔隙度的富含木炭的基质不一定与较高的保水性和植物有效水含量，并在RCHs的孔径分布和保水性不同于那些典型的生物炭修正土壤。
The stratigraphy and properties of soils can be significantly altered by past land use, even in areas that have been continuously used for forestry. An example of such a pedological legacy of past forest use is the soils associated with relict charcoal hearths (RCHs). The physical properties and moisture regime of RCH soils and their ecological implications have hardly been studied, although RCHs are widespread in many forest areas and might be used as model sites to study long-term effects of soil amendment with biochar. The objective of our study was to characterize the soil moisture regime and hydraulic properties of RCH soils through comparison to reference forest soils on sandy substrates in the northeastern German lowlands. RCH and reference soils were studied in woodlands around the historic iron works in Peitz (Brandenburg, Germany), combining laboratory analyses of bulk density, pore size distribution, and saturated hydraulic conductivity with sensor-based monitoring of soil moisture contents and matric potentials. The laboratory analyses reveal a low bulk density and high porosity of the RCH substrates, which is mainly related to larger volumes of coarse and fine pores. Soil moisture monitoring shows higher water contents in RCH soils under relatively wet conditions and lower water contents under dry conditions, as well as strong hysteresis effects, especially after dry periods. The results therefore affirm that the legacies of charcoal production increase spatial and temporal variations in soil moisture, which in turn can cause increased variability in ecological site conditions in charcoal production areas. They furthermore reveal that the high porosity of charcoal-enriched substrates is not necessarily associated with higher water retention and plant-available water contents, and that the pore size distribution and water retention in RCHs differ from those characteristically found for biochar-amended soils.
登录
查看更多内容
波兰 18 世纪比亚沃维耶扎原始森林中用于低强度生产木炭和木焦油的树种。
影响因子：
1
作者：
T. Samojlik;B. Jędrzejewska;M. Michniewicz;Dariusz Krasnodębski;M. Dulinicz;H. Olczak;A. Karczewski;I. Rotherham
通讯作者：
I. Rotherham
Chailluz（法国）森林木炭窑的人类学作为了解公元 15 世纪中叶至 20 世纪初弗朗什-孔泰林业的工具
DOI：
--
发表时间：
2017
期刊：
影响因子：
--
作者：
Aurore Dupin;Olivier Girardclos;Catherine Fruchart;C. Laplaige;L. Nuninger;A. Dufraisse;E. Gauthier
通讯作者：
E. Gauthier
半干旱林地中用于木炭生产的历史树木采伐的土地利用遗产
DOI：
--
发表时间：
2011
期刊：
影响因子：
--
作者：
Dongwook W. Ko;A. Sparrow;P. Weisberg
通讯作者：
P. Weisberg
DOI：
--
发表时间：
2007
期刊：
影响因子：
--
作者：
B. Groenewoudt
通讯作者：
B. Groenewoudt
影响因子：
2.8
作者：
Weller
通讯作者：
Weller