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1. Assessing land surface drying and wetting trends with a normalized soil water index on the Loess Plateau in 2001–2016

Author:
Wang, Yinyin; Magliulo, Vincenzo; Yan, Weiming; Shangguan, Zhouping
Source:
The Science of the total environment 2019 v.676 pp. 120-130
ISSN:
0048-9697
Subject:
soil depth,   etc   ; drought; drying; ecosystems; evapotranspiration; rain; soil water; surface storage; China;     Show all 9 Subjects
Abstract:
... Long-term drought may cause severe damage to ecosystems. To assess drought intensity, we introduced a normalized soil water index (NSWI) of land surface, on the basis of rainfall and actual evapotranspiration. Areas undergoing land surface drying on the Loess Plateau in 2001–2016 were assessed on the basis of the values of NSWI combined with rainfall and land surface water storage (LSWS). The exte ...
DOI:
10.1016/j.scitotenv.2019.04.195

2. Evaluation of soil erosion and ecological rehabilitation in Loess Plateau region in Northwest China using plutonium isotopes

Author:
Zhang, Weichao; Xing, Shan; Hou, Xiaolin
Source:
Soil & tillage research 2019 v.191 pp. 162-170
ISSN:
0167-1987
Subject:
soil depth,   etc   ; ecological restoration; ecosystems; grasses; inventories; isotopes; latitude; plutonium; soil erosion; soil profiles; watersheds; China;     Show all 12 Subjects
Abstract:
... Soil erosion is a critical threat to the agriculture and ecosystem in the Chinese Loess Plateau area. Ecological rehabilitation has been applied in large area for reduction of the soil erosion. Six soil depth profiles were collected from Nanxiaohegou watershed in the Loess Plateau in northwest China and analyzed for the activity concentrations of plutonium isotopes. The measured 240Pu/239Pu atomic ...
DOI:
10.1016/j.still.2019.04.004

3. Prediction of soil thicknesses in a headwater hillslope with constrained sampling data

Author:
Liu, Jintao; Han, Xiaole; Chen, Xi; He, Ruimin; Wu, Pengfei
Source:
Catena 2019 v.177 pp. 101-113
ISSN:
0341-8162
Subject:
soil depth,   etc   ; biogeochemistry; data collection; diffusivity; highlands; linear models; prediction; topographic slope; water; watersheds; China;     Show all 11 Subjects
Abstract:
... The spatial distribution of soil thickness plays a critical role in upland hydrological and biogeochemical processes. Process-based models are thought to have great potentials for predicting soil thickness. However, applications of process-based approaches have been greatly limited by parameter estimation, which typically requires specialized laboratories. In this study, on the basis of field work ...
DOI:
10.1016/j.catena.2019.02.009

4. Ground Observation-based Analysis of Soil Moisture Spatiotemporal Variability Across A Humid to Semi-Humid Transitional Zone in China

Author:
Zhang, Ke; Wang, Qingqing; Chao, Lijun; Ye, Jinyin; Li, Zhijia; Yu, Zhongbo; Yang, Tao; Ju, Qin
Source:
Journal of hydrology 2019
ISSN:
0022-1694
Subject:
soil depth,   etc   ; data collection; geomorphology; models; rain; soil water; spatial variation; temporal variation; China;     Show all 9 Subjects
Abstract:
... Little measurement-based soil moisture information is available for the humid to semi-humid transitional zones in China. Anhui Province is a representative area of these zones and spans several hydroclimatic and geomorphological zones. To overcome shortage of observational soil moisture information in this area, we collected and compiled a multi-layer daily soil moisture record from 2012 to 2016 a ...
DOI:
10.1016/j.jhydrol.2019.04.087

5. Belowground thermoregulation in Namibian desert spiders that burrow their own chemostats

Author:
Mulder, Christian; Conti, Erminia; Costa, Giovanni
Source:
Acta oecologica 2019 v.96 pp. 18-23
ISSN:
1146-609X
Subject:
soil depth,   etc   ; Araneae; body size; burrows; ectothermy; feeding behavior; habitats; metabolism; temperature; Namibia;     Show all 10 Subjects
Abstract:
... Body size aggregates multiple traits, ranging from body mass and feeding behaviour up to reproductive strategies and individual performance, and depicts the environmental fitness. Some environmental predictors like temperature can therefore be seen as multilayer factors, causing trait distribution to be multifaceted. This is remarkably evident for Ariadna Audouin (Araneae: Segestriidae) spiders, a ...
DOI:
10.1016/j.actao.2019.02.003

6. Influence of exclosure on CT-measured soil macropores and root architecture in a shrub-encroached grassland in northern China

Author:
Hu, Xia; Li, Xiao-Yan; Wang, Pei; Liu, Yong; Wu, Xiu-Chen; Li, Zong-Chao; Zhao, Yun-Duo; Cheng, Ya-Qian; Guo, Lan-Lan; Lyu, Yan-Li; Liu, Lian-You
Source:
Soil & tillage research 2019 v.187 pp. 21-30
ISSN:
0167-1987
Subject:
soil depth,   etc   ; computed tomography; grasslands; grazing; macropores; roots; shrublands; shrubs; China;     Show all 9 Subjects
Abstract:
... Grassland exclosures with fencing are commonly used to prevent shrub encroachment. However, few studies have been conducted on the effect of exclosures on soil macropores and root architecture during shrub encroachment. This study aimed to quantify the effects of exclosures on soil macropore and root characteristics beneath the encroached shrub C. microphylla L. in the Inner Mongolia grassland. Tw ...
DOI:
10.1016/j.still.2018.10.020

7. Vertical Distribution of Soil Pyrogenic Matter: A Review

Author:
HOBLEY, Eleanor
Source:
Pedosphere 2019 v.29 no.2 pp. 137-149
ISSN:
1002-0160
Subject:
soil depth,   etc   ; biomass; burning; carbon; charcoal; models; organic matter; particle size; spatial distribution; subsurface soil layers;     Show all 10 Subjects
Abstract:
... Alteration of terrestrial biomass during fire produces pyrogenic matter, a large quantity of which is deposited on and may enter soils. The amount of annual burning around the globe implies greater production and storage of carbon in soil pyrogenic organic matter (pyrOM) than is regularly found in investigations of soil pyrogenic matter. A portion of this unaccounted for pyrogenic material may be ...
DOI:
10.1016/S1002-0160(19)60795-2

8. A new digital electromechanical system for measurement of soil bulk density

Author:
Al-Shammary, Ahmed Abed Gatea; Kouzani, Abbas; Saeed, Thamir R.; Rodrigo-Comino, Jesús
Source:
Computers and electronics in agriculture 2019 v.156 pp. 227-242
ISSN:
0168-1699
Subject:
soil depth,   etc   ; automation; bulk density; labor; soil density; soil quality; soil texture;     Show all 7 Subjects
Abstract:
... This research describes the automation of the widely used volumetric cylinder (VC) technique to measure bulk density. The VC technique suffers from several major drawbacks. In particular, it is difficult and time-consuming to use. Furthermore, errors are produced when sampling different soil depths under a range of field conditions. This research introduces the design, implementation, and testing ...
DOI:
10.1016/j.compag.2018.11.015

9. Observed soil temperature trends associated with climate change in the Tibetan Plateau, 1960–2014

Author:
Fang, Xuewei; Luo, Siqiong; Lyu, Shihua
Source:
Theoretical and applied climatology 2019 v.135 no.1-2 pp. 169-181
ISSN:
0177-798X
Subject:
soil depth,   etc   ; air temperature; global warming; snowpack; soil heating; soil temperature; summer; China;     Show all 8 Subjects
Abstract:
... Soil temperature, an important indicator of climate change, has rarely explored due to scarce observations, especially in the Tibetan Plateau (TP) area. In this study, changes observed in five meteorological variables obtained from the TP between 1960 and 2014 were investigated using two non-parametric methods, the modified Mann–Kendall test and Sen’s slope estimator method. Analysis of annual ser ...
DOI:
10.1007/s00704-017-2337-9

10. Leaching of Clothianidin in Two Different Indian Soils: Effect of Organic Amendment

Author:
Singh, NingthoujamSamarendra; Mukherjee, Irani; Das, ShaonKumar; Varghese, E.
Source:
Bulletin of environmental contamination and toxicology 2018 v.100 no.4 pp. 553-559
ISSN:
0007-4861
Subject:
soil depth,   etc   ; animal manures; clothianidin; leachates; leaching; rain; India;     Show all 7 Subjects
Abstract:
... Clothianidin is a widely used insecticide under Indian subtropical condition. The objective of this study was to generate residue data which aims to understand leaching potential of clothianidin [(E)-1-(2-chloro-1,3-thiazol-5-ylmethyl)-3-methyl-2- nitroguanidine] through packed soil column. The maximum amount of clothianidin was recovered at 0–5 cm soil depth in both Manipur (67.15%) and Delhi soi ...
DOI:
10.1007/s00128-018-2290-z

11. Soil phosphorus fractions vary with harvest intensity and vegetation control at two contrasting Douglas-fir sites in the Pacific northwest

Author:
DeBruler, Daniel G.; Schoenholtz, Stephen H.; Slesak, Robert A.; Strahm, Brian D.; Harrington, Timothy B.
Source:
Geoderma 2019 v.350 pp. 73-83
ISSN:
0016-7061
Subject:
soil depth,   etc   ; Pseudotsuga menziesii; aluminum; coasts; fractionation; harvesting; intensive forestry; iron; minerals; phosphorus; plantations; soil properties; vegetation; Oregon;     Show all 14 Subjects
Abstract:
... Effects of intensive forest management on soil phosphorus (P) are unclear and may impact long-term site productivity. We assessed changes in P availability over 10 years associated with harvest intensity (bole-only vs. whole-tree harvest) and vegetation control treatments (initial vegetation control (IVC) vs. five years of annual vegetation control (AVC)) using a P fractionation procedure. Fractio ...
DOI:
10.1016/j.geoderma.2019.04.038

12. Variations in soil and microbial biomass C, N and fungal biomass ergosterol along elevation and depth gradients in Alpine ecosystems

Author:
Bhople, Parag; Djukic, Ika; Keiblinger, Katharina; Zehetner, Franz; Liu, Dong; Bierbaumer, Michael; Zechmeister-Boltenstern, Sophie; Joergensen, Rainer Georg; Murugan, Rajasekaran
Source:
Geoderma 2019 v.345 pp. 93-103
ISSN:
0016-7061
Subject:
soil depth,   etc   ; altitude; bedrock; community structure; ecosystems; ergosterol; fungal biomass; microbial communities; soil chemical properties; soil fungi; temperature; Alps region;     Show all 12 Subjects
Abstract:
... Changes in soil fungal biomass ergosterol, microbial biomass and their role in soil organic carbon (SOC) dynamics along elevation and depth gradients in the Alps are still poorly explored. We investigated changes in stocks of SOC, total N, microbial biomass C (MBC) and N (MBN) and fungal biomass ergosterol at different elevation levels (low, mid and high) in two alpine sites. These two alpine site ...
DOI:
10.1016/j.geoderma.2019.03.022

13. Suitable exclosure duration for the restoration of degraded alpine grasslands on the Qinghai-Tibetan Plateau

Author:
Cao, Jianjun; Li, Guangdong; Adamowski, Jan F.; Holden, Nicholas M.; Deo, Ravinesh C.; Hu, Zeyong; Zhu, Guofeng; Xu, Xueyun; Feng, Qi
Source:
Land use policy 2019 v.86 pp. 261-267
ISSN:
0264-8377
Subject:
soil depth,   etc   ; aboveground biomass; alpine grasslands; control methods; dominant species; grazing; soil water; soil water content; China;     Show all 9 Subjects
Abstract:
... Exclosures erected to prevent grazing have been widely adopted as a measure for the recovery of degraded grasslands. Many studies have explored the effects of exclosure use on vegetation and soil; these studies, however, were carried out over relatively short-time periods. Given the length of time required for a grassland to fully develop, short-term studies result in a limited understanding of ex ...
DOI:
10.1016/j.landusepol.2019.05.008

14. Comparison of woody species composition between rocky outcrops and nearby matrix vegetation on degraded karst hillslopes of Southwest China

Author:
Nie, Yunpeng; Ding, Yali; Zhang, Huiling; Chen, Hongsong
Source:
Journal of forestry research 2019 v.30 no.3 pp. 911-920
ISSN:
1007-662X
Subject:
soil depth,   etc   ; anthropogenic activities; humans; karsts; microhabitats; shrubs; species richness; topographic slope; trees; vegetation; woody plants; China;     Show all 12 Subjects
Abstract:
... Habitats with different features such as soil depth and soil/rock conditions can provide favorable environments for species with different requirements, while anthropogenic disturbances normally exert additional effects on species composition. However, specific studies have rarely been conducted in the degraded karst regions of Southwest China despite the high heterogeneity of karst habitats and p ...
DOI:
10.1007/s11676-018-0682-x

15. Competitive interaction in jujube tree/cotton agroforestry system in Xinjiang province, northwestern China

Author:
Zhang, W.; Wang, B. J.; Gan, Y. W.; Duan, Z. P.; Hao, X. D.; Xu, W. L.; Li, L. H.
Source:
Agroforestry systems 2019 v.93 no.2 pp. 591-605
ISSN:
0167-4366
Subject:
soil depth,   etc   ; Gossypium hirsutum; Ziziphus jujuba; agroforestry; cotton; intercropping; interspecific competition; oases; roots; soil profiles; trees; China;     Show all 12 Subjects
Abstract:
... A field study was conducted at Hetian oasis, southern Xinjiang, northwestern China, to investigate root distribution and morphology affected by interspecific interactions between jujube trees (Ziziphus jujuba Mill.) and cotton plants (Gossypium hirsutum L.). The treatments comprised (1) sole cotton, (2) 5-year-old sole jujube trees, (3) 7-year-old sole jujube trees, (4) 9-year-old sole jujube tree ...
DOI:
10.1007/s10457-017-0153-y

16. Estimating long-term erosion and sedimentation rate on farmland using magnetic susceptibility in northeast China

Author:
Yue, Yu; Keli, Zhang; Liang, Liu; Qianhong, Ma; Jianyong, Luo
Source:
Soil & tillage research 2019 v.187 pp. 41-49
ISSN:
0167-1987
Subject:
soil depth,   etc   ; agricultural land; eroded soils; forests; homogenization; magnetism; models; nondestructive methods; sedimentation rate; sediments; soil erosion; tillage; China;     Show all 13 Subjects
Abstract:
... Soil loss is a global environmental issue. Increasing amounts of attention have been paid to assessing soil erosion and its distribution on cultivated slopes using magnetic susceptibility (MS), which is a rapid, reliable, economic and nondestructive method. However, the MS technique provides incomplete estimates of soil loss. The objective of this study is to employ MS as a tracer to estimate soil ...
DOI:
10.1016/j.still.2018.11.011

17. Influences of plant spacing on root tensile strength of Schefflera arboricola and soil shear strength

Author:
Ni, J. J.; Leung, A. K.; Ng, C. W. W.
Source:
Landscape and ecological engineering 2019 v.15 no.2 pp. 223-230
ISSN:
1860-1871
Subject:
soil depth,   etc   ; Schefflera arboricola; biomass; biomechanics; cohesion; models; root growth; root systems; roots; sand; shear strength; tensile strength;     Show all 12 Subjects
Abstract:
... Mechanical root reinforcement depends not only on root biomechanical properties but also on root biomass. Although it is known that plant spacing can affect root growth, it is not clear how it affects root tensile strength. We interpreted a set of field data to study the effects of spacing of Schefflera arboricola on root area ratio (RAR), root tensile strength and their combined effects on soil s ...
DOI:
10.1007/s11355-019-00374-x

18. Interspecific interaction alters root morphology in young walnut/wheat agroforestry systems in northwest China

Author:
Duan, Z. P.; Gan, Y. W.; Wang, B. J.; Hao, X. D.; Xu, W. L.; Zhang, W.; Li, L. H.
Source:
Agroforestry systems 2019 v.93 no.2 pp. 419-434
ISSN:
0167-4366
Subject:
soil depth,   etc   ; Juglans regia; Triticum aestivum; agroforestry; intercropping; land use; nutrient uptake; sole cropping; surface area; walnuts; wheat; China;     Show all 12 Subjects
Abstract:
... The objective of this experiment was to learn more about root morphology and spatial distribution in a specify walnut (Juglans regia L.)/wheat (Triticum aestivum L.) intercropping system. The effects of intercropping on aboveground yield and land equivalent ratio (LER) were also determined. The experiment was conducted at Hetian in the southern part of the Xinjiang Uyghur Autonomous Region. The re ...
DOI:
10.1007/s10457-017-0133-2

19. Biochar increased field soil inorganic carbon content five years after application

Author:
Dong, Xinliang; Singh, Bhupinder Pal; Li, Guitong; Lin, Qimei; Zhao, Xiaorong
Source:
Soil & tillage research 2019 v.186 pp. 36-41
ISSN:
0167-1987
Subject:
soil depth,   etc   ; application rate; biochar; carbon sequestration; inorganic carbon; semiarid zones; soil organic carbon; soil profiles; stable isotopes; terrestrial ecosystems;     Show all 10 Subjects
Abstract:
... Soil inorganic carbon (SIC) plays an important role in terrestrial ecosystem carbon cycling, especially in arid and semi-arid areas. Biochar has becoming a great of interest as a mean for carbon sequestration, resulting from its high content of carbon and long-term persistence in soil. Moreover, there is abundance of information about the effect of biochar on the turnover of soil organic carbon; h ...
DOI:
10.1016/j.still.2018.09.013

20. Characteristics of root decomposition based on in situ experiments in a tropical rainforest in Sarawak, Malaysia: impacts of root diameter and soil biota

Author:
Ohashi, Mizue; Makita, Naoki; Katayama, Ayumi; Kume, Tomonori; Matsumoto, Kazuho; Kumagai, Tomo’omi; Endo, Izuki; Kho, Lip Khoon
Source:
Plant and soil 2019 v.436 no.1-2 pp. 439-448
ISSN:
0032-079X
Subject:
soil depth,   etc   ; animals; carbon; carbon dioxide; carbon sequestration; fine roots; fungi; soil biota; soil carbon; tropical rain forests; Borneo; Malaysia;     Show all 12 Subjects
Abstract:
... AIMS: Tropical forests contribute significantly to the stability of global carbon (C) balance; however, little is known about root litter decomposition in tropical rainforests. In this study, we aimed to (1) characterise the effect of soil depth, root diameter and soil organisms on root litter decomposition and (2) estimate the contribution of root decomposition to soil carbon dioxide (CO₂) efflux ...
DOI:
10.1007/s11104-018-03929-3