Soil Research最新文献_第6页

Numerical modelling of soil–landscape relationships using diversity indices and conditional probability: a case study from an Iranian arid region 利用多样性指数和条件概率对土壤-景观关系进行数值模拟:以伊朗干旱区为例

IF 1.6 4区农林科学

Soil Research Pub Date : 2023-01-01 DOI: 10.1071/sr22216

M. Bagheri-Bodaghabadi, A. Jafari, Mojtaba Zeraatpisheh, H. Owliaie, P. Finke, Ming Xu

引用次数: 0

Rapid elemental prediction of heterogeneous tropical soils from pXRF data: a comparison of models via linear regressions and machine learning algorithms 基于pXRF数据的非均匀热带土壤元素快速预测:通过线性回归和机器学习算法的模型比较

IF 1.6 4区农林科学

Soil Research Pub Date : 2023-01-01 DOI: 10.1071/sr22168

Álvaro José Gomes de Faria, S. H. Silva, Luiza Carvalho Alvarenga Lima, Renata Andrade, Lívia Botelho, L. C. A. Melo, L. Guilherme, N. Curi

引用次数: 0

Understanding and quantifying whole soil-profile organic carbon transfer using an environmental tracer 利用环境示踪剂了解和量化全土壤剖面有机碳转移

4区农林科学

Soil Research Pub Date : 2023-01-01 DOI: 10.1071/sr22248

G. R. Hancock

{"title":"Understanding and quantifying whole soil-profile organic carbon transfer using an environmental tracer","authors":"G. R. Hancock","doi":"10.1071/sr22248","DOIUrl":"https://doi.org/10.1071/sr22248","url":null,"abstract":"Context Quantifying soil organic carbon (SOC) depth distribution and its vertical transport is needed for both improved understanding of soil properties and behaviour as well as enhanced organic carbon sequestration. This is a global issue, that if better understood, could result in both more agriculturally productive soils as well as enhanced environmental outcomes.Aims Quantify whole soil-profile SOC and down-profile movement at a series of sites in south-east Australia.Methods Soil is sampled at regular intervals using cores and assessed for SOC and environmental tracer (137Cs) concentration.Key results Soils that have a high clay content (Vertosols) and crack (i.e. self mulching) have the highest SOC content. In high clay content soils, 137Cs is present at depths well below that at which it would be present by diffusive processes.Conclusions Surface soil, labelled with 137Cs is moving down the soil profile by advective processes to depths well below that possible by diffusive processes alone. Using local erosion rates and carbon input, it is estimated that less than 1% of SOC is delivered to the cracking soils by erosional processes and that the majority of SOC must be produced in situ.Implications Given that 137Cs is a relatively new environmental tracer (1945 onwards), this suggests that surface labelled soil is reaching depths of up to 80cm at decadal time scales. The methods and findings here have global applicability and provide insights into potential enhancement of carbon sequestration in both cropping and grazing landscapes.","PeriodicalId":21818,"journal":{"name":"Soil Research","volume":"277 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135699344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microbiological indicators as sensitive indicators in the assessment of areas contaminated by heavy metals 微生物指标作为重金属污染地区评价的敏感指标

IF 1.6 4区农林科学

Soil Research Pub Date : 2023-01-01 DOI: 10.1071/sr23012

E. Melloni, R. Melloni, R. Pastor-Jáuregui, A. Aguilar-Garrido, F. Martín-Peinado

引用次数: 0

Agronomic soil tests can be used to estimate dissolved reactive phosphorus loss 农艺土壤试验可用于估算溶解活性磷的损失

IF 1.6 4区农林科学

Soil Research Pub Date : 2023-01-01 DOI: 10.1071/sr22167

D. Weaver, R. Summers, A. Neuhaus

引用次数: 0

Complexity of clay minerals and its effects on silicon dynamics in hypersaline coastal wetland soils, Brazil 巴西高盐滨海湿地土壤黏土矿物复杂性及其对硅动态的影响

IF 1.6 4区农林科学

Soil Research Pub Date : 2023-01-01 DOI: 10.1071/sr22245

L. Sartor, G. R. P. Andrade, S. Ying, R. Graham, R. Macedo, T. O. Ferreira

引用次数: 0

Wetland soil carbon storage exceeds uplands in an urban natural area (Florida, USA) 城市自然区湿地土壤碳储量超过高地(佛罗里达州，美国)

IF 1.6 4区农林科学

Soil Research Pub Date : 2023-01-01 DOI: 10.1071/sr22235

Jennifer D. Bennett, Lisa G. Chambers

{"title":"Wetland soil carbon storage exceeds uplands in an urban natural area (Florida, USA)","authors":"Jennifer D. Bennett, Lisa G. Chambers","doi":"10.1071/sr22235","DOIUrl":"https://doi.org/10.1071/sr22235","url":null,"abstract":"Context . Urban greenspaces and natural areas are often recognised for their cultural services, but may also provide ecological services, including carbon (C) sequestration and storage. Aims . This study investigated the strength of the relationship between easily discernable ecosystem characteristics (e.g. topographic position, vegetation, and soil type) and soil C storage, and evaluated common conversion factors and methodologies used in soil C inventories. Methods . Sixty-seven full-depth (up to 5 m) soil cores were collected across nine community types in University of Central Florida ’ s Arboretum (Orlando, Florida, USA) and were analysed for bulk density, organic matter (OM) content, total C, and total nitrogen (N). Key results . Wetlands stored an average of 16 times more C than uplands and C density increased with soil depth. A 70% underestimation of soil C stocks would have occurred if sampling stopped at 50 cm. A strong linear relationship between soil C and OM supports the use of a 0.56 (C:OM) conversion factor for estimating soil organic C. Conclusions . The presence of wetlands is the key predictor of soil C and N storage, but the magnitude of storage varies widely among wetlands. Overall, the 225-ha study area stored 85 482 ± 3365 Mg of soil C. Implications . Urban natural areas should be evaluated for their ecosystem servicesseparately from their surroundingdevelopedlanduse/land cover with consideration for C storage potential. Leveraging topographic position, a site-speci ﬁ c soil OM conversion factor, and depth to refusal testing can increase the accuracy and cost-effectiveness of soil C inventories.","PeriodicalId":21818,"journal":{"name":"Soil Research","volume":"13 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90981069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Soil origin impacts Acacia longifolia above and belowground development: water and nutrition as players 土壤来源影响金合欢地上地下发育:水分和营养为玩家

IF 1.6 4区农林科学

Soil Research Pub Date : 2023-01-01 DOI: 10.1071/sr22109

C. Sampaio, S. Vicente, M. Antunes, C. Máguas, H. Trindade

引用次数: 0

Using environmental tracers to understand soil organic carbon and soil erosion on a steep slope hillslope in south-east Australia 利用环境示踪剂了解澳大利亚东南部陡峭山坡上的土壤有机碳和土壤侵蚀

IF 1.6 4区农林科学

Soil Research Pub Date : 2023-01-01 DOI: 10.1071/sr22263

G. Hancock

引用次数: 0

Modelling nitrous oxide emissions: comparing algorithms in six widely used agro-ecological models 模拟一氧化二氮排放:比较六种广泛使用的农业生态模型的算法