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https://www.readbyqxmd.com/read/28231328/integrating-the-sd-clue-s-and-invest-models-into-assessment-of-oasis-carbon-storage-in-northwestern-china
#1
Youjia Liang, Lijun Liu, Jiejun Huang
Spatio-temporal integrated assessment of land-use change impacts on carbon storage services is a new and important research field in land science and landscape ecology. The objective of this paper is to use an integrated SD-CLUE-S and InVEST model to simulate and predict land-use changes impacts during 2000-2018 on carbon storage at pixel and regional scales in the Zhangye oasis, Northwest China. The SD-CLUE-S model was used to simulate land-use change, and three land-use scenarios (current trend, moderate protection, and strict protection) were defined in collaboration with oasis socioeconomic development and ecological environment conservation by local government...
2017: PloS One
https://www.readbyqxmd.com/read/28225787/forest-dynamics-in-the-u-s-indicate-disproportionate-attrition-in-western-forests-rural-areas-and-public-lands
#2
Sheng Yang, Giorgos Mountrakis
Forests are experiencing significant changes; studying geographic patterns in forests is critical in understanding the impact of forest dynamics to biodiversity, soil erosion, water chemistry and climate. Few studies have examined forest geographic pattern changes other than fragmentation; however, other spatial processes of forest dynamics are of equal importance. Here, we study forest attrition, the complete removal of forest patches, that can result in complete habitat loss, severe decline of population sizes and species richness, and shifts of local and regional environmental conditions...
2017: PloS One
https://www.readbyqxmd.com/read/28222351/the-land-morphology-approach-to-flood-risk-mapping-an-application-to-portugal
#3
N S Cunha, M R Magalhães, T Domingos, M M Abreu, C Küpfer
In the last decades, the increasing vulnerability of floodplains is linked to societal changes such as population density growth, land use changes, water use patterns, among other factors. Land morphology directly influences surface water flow, transport of sediments, soil genesis, local climate and vegetation distribution. Therefore, the land morphology, the land used and management directly influences flood risks genesis. However, attention is not always given to the underlying geomorphological and ecological processes that influence the dynamic of rivers and their floodplains...
February 16, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28216360/the-influence-of-prototype-testing-in-three-dimensional-aortic-models-on-fenestrated-endograft-design
#4
Fadi Taher, Juergen Falkensammer, Jamie McCarte, Johann Strassegger, Miriam Uhlmann, Philipp Schuch, Afshin Assadian
OBJECTIVE: The fenestrated Anaconda endograft (Vascutek/Terumo, Inchinnan, UK) is intended for the treatment of abdominal aortic aneurysms with an insufficient infrarenal landing zone. The endografts are custom-made with use of high-resolution, 1-mm-slice computed tomography angiography images. For every case, a nonsterile prototype and a three-dimensional (3D) model of the patient's aorta are constructed to allow the engineers as well as the physician to test-implant the device and to review the fit of the graft...
February 16, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28216028/cause-and-predictability-for-the-severe-haze-pollutions-in-downtown-beijing-during-november-december-2015
#5
Ziyin Zhang, Daoyi Gong, Seong-Joong Kim, Rui Mao, Jing Xu, Xiujuan Zhao, Zhiqiang Ma
When severe haze pollutions hit downtown Beijing during period of November-December 2015, Beijing issued the red alert for the heavy pollution for the first time in history. Based on the hourly PM2.5 concentration and meteorological variable records and the ERA-Interim reanalysis data, a series of diagnostic analyses were conducted to explore the possible meteorological causes for the severe haze pollutions. Using the online-coupled WRF-Chem model and GFS data, the predictability of hourly and daily PM2.5 concentration was evaluated...
February 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28214124/increasing-agricultural-land-use-is-associated-with-the-spread-of-an-invasive-fish-gambusia-affinis
#6
Finnbar Lee, Kevin S Simon, George L W Perry
Land-use change and invasive species pose major threats to ecosystems globally. These stressors can act together, with disturbance due to changes in land-use facilitating invasion. We examined the potential for agricultural land use to facilitate the establishment and population growth (abundance) of a globally invasive fish (Gambusia affinis). To achieve this we examined Gambusia presence, abundance, and life history traits in 31 streams spanning an agricultural land use gradient in the North Island of New Zealand...
February 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28208227/integrating-remotely-sensed-fires-for-predicting-deforestation-for-redd
#7
Dolors Armenteras, Cerian Gibbes, Jesús A Anaya, Liliana M Dávalos
Fire is an important tool in tropical forest management, as it alters forest composition, structure, and the carbon budget. The United Nations program on Reducing Emissions from Deforestation and Forest Degradation (REDD+) aims to sustainably manage forests, as well as conserve and enhance their carbon stocks. Despite the crucial role of fire management, decision-making on REDD+ interventions fails to systematically include fires. Here, we address this critical knowledge gap in two ways. First, we review REDD+ projects and programs to assess the inclusion of fires in monitoring, reporting and verification (MRV) systems...
February 16, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28202244/changes-in-land-uses-and-ecosystem-services-under-multi-scenarios-simulation
#8
Jingya Liu, Jing Li, Keyu Qin, Zixiang Zhou, Xiaonan Yang, Ting Li
Social economy of China has been rapidly developing for more than 30years with efficient reforms and policies being issued. Societal developments have resulted in a greater use of many natural resources to the extent that the ecosystem can no longer self-regulate, thus severely damaging the balance of the ecosystem itself. This in turn has led to a deterioration in people's living environments. Our research is based on a combination of climate scenarios presented in the fifth report of the Intergovernmental Panel on Climate Change (IPCC) and policy scenarios, including the one-child policy and carbon tax policy...
February 12, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28192363/combined-risk-assessment-of-nonstationary-monthly-water-quality-based-on-markov-chain-and-time-varying-copula
#9
Wei Shi, Jun Xia
Water quality risk management is a global hot research linkage with the sustainable water resource development. Ammonium nitrogen (NH3-N) and permanganate index (CODMn) as the focus indicators in Huai River Basin, are selected to reveal their joint transition laws based on Markov theory. The time-varying moments model with either time or land cover index as explanatory variables is applied to build the time-varying marginal distributions of water quality time series. Time-varying copula model, which takes the non-stationarity in the marginal distribution and/or the time variation in dependence structure between water quality series into consideration, is constructed to describe a bivariate frequency analysis for NH3-N and CODMn series at the same monitoring gauge...
February 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28190972/object-view-in-spatial-system-dynamics-a-grassland-farming-example
#10
REVIEW
Christian Neuwirth, Barbara Hofer, Andreas Schaumberger
Spatial system dynamics (SSD) models are typically implemented by linking stock variables to raster grids while the use of object representations of human artefacts such as buildings or ownership has been limited. This limitation is addressed by this article, which demonstrates the use of object representations in SSD. The objects are parcels of land that are attributed to grassland farms. The model simulates structural change in agriculture, i.e., change in the size of farms. The aim of the model is to reveal relations between structural change, farmland fragmentation and variable farmland quality...
July 2, 2016: J Spat Sci
https://www.readbyqxmd.com/read/28187182/delimiting-priority-areas-for-the-conservation-of-endemic-and-threatened-neotropical-birds-using-a-niche-based-gap-analysis
#11
Dorinny Lisboa de Carvalho, Tiago Sousa-Neves, Pablo Vieira Cerqueira, Gustavo Gonsioroski, Sofia Marques Silva, Daniel Paiva Silva, Marcos Pérsio Dantas Santos
Knowledge of spatiotemporal distribution of biodiversity is still very incomplete in the tropics. This is one of the major problems preventing the assessment and effectiveness of conservation actions. Mega-diverse tropical regions are being exposed to fast and profound environmental changes, and the amount of resources available to describe the distribution of species is generally limited. Thus, the tropics is losing species at unprecedented rates, without a proper assessment of its biodiversity. Species distribution models (SDMs) can be used to fill such biogeographic gaps within a species' range and, when allied with systematic conservation planning (e...
2017: PloS One
https://www.readbyqxmd.com/read/28182314/exotic-weeds-and-fluctuating-microclimate-can-constrain-native-plant-regeneration-in-urban-forest-restoration
#12
K J Wallace, Daniel C Laughlin, Bruce D Clarkson
Restoring forest structure and composition is an important component of urban land management, but we lack clear understanding of the mechanisms driving restoration success. Here we studied two indicators of restoration success in temperate rainforests: native tree regeneration and epiphyte colonization. We hypothesized that ecosystem properties such as forest canopy openness, abundance of exotic herbaceous weeds, and the microclimate directly affect the density and diversity of native tree seedlings and epiphytes...
February 9, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28181986/local-administration-of-thiamine-ameliorates-ongoing-pain-in-a-rat-model-of-second-degree-burn
#13
Kangkang Zhang, Yali Pei, Zhihao Gan, Xuetao Zhang, Ye Duan, Yuepeng Liu, Wei Liu
The objective of this study was to develop rat model of second-degree burn pain and test analgesic efficacy of local thiamine administration. Automatic temperature-controlled hot plate was set at 85 ± 0.1°C with a filter paper on the top. Rats were thrust on hot plate landing on plantar surface for 4 to 7 and 10 seconds, respectively. Burnt skin was observed. Hematoxylin and eosin staining and Masson staining were used to monitor burn degree. Gait analysis detected change of locomotion. Allodynia and hyperalgesia in the burnt area were evaluated with von Frey test and Hargreaves Test, and ongoing pain was detected with conditional place preference test...
February 7, 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28177409/increased-soluble-phosphorus-loads-to-lake-erie-unintended-consequences-of-conservation-practices
#14
Helen P Jarvie, Laura T Johnson, Andrew N Sharpley, Douglas R Smith, David B Baker, Tom W Bruulsema, Remegio Confesor
Cumulative daily load time series show that the early 2000s marked a step-change increase in riverine soluble reactive phosphorus (SRP) loads entering the Western Lake Erie Basin from three major tributaries: the Maumee, Sandusky, and Raisin Rivers. These elevated SRP loads have been sustained over the last 12 yr. Empirical regression models were used to estimate the contributions from (i) increased runoff from changing weather and precipitation patterns and (ii) increased SRP delivery (the combined effects of increased source availability and/or increased transport efficiency of labile phosphorus [P] fractions)...
January 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28165643/toward-inventory-based-estimates-of-soil-organic-carbon-in-forests-of-the-united-states
#15
G M Domke, C H Perry, B F Walters, L E Nave, C W Woodall, C W Swanston
Soil organic carbon (SOC) is the largest terrestrial carbon (C) sink on Earth; this pool plays a critical role in ecosystem processes and climate change. Given the cost and time required to measure SOC, and particularly changes in SOC, many signatory nations to the United Nations Framework Convention on Climate Change report estimates of SOC stocks and stock changes using default values from the Intergovernmental Panel on Climate Change or country-specific models. In the United States (US), SOC in forests is monitored by the national forest inventory (NFI) conducted by the Forest Inventory and Analysis (FIA) program within the US Department of Agriculture, Forest Service...
February 6, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28164338/the-response-of-ecosystem-water-use-efficiency-to-rising-atmospheric-co2-concentrations-sensitivity-and-large-scale-biogeochemical-implications
#16
Jürgen Knauer, Sönke Zaehle, Markus Reichstein, Belinda E Medlyn, Matthias Forkel, Stefan Hagemann, Christiane Werner
Ecosystem water-use efficiency (WUE) is an important metric linking the global land carbon and water cycles. Eddy covariance-based estimates of WUE in temperate/boreal forests have recently been found to show a strong and unexpected increase over the 1992-2010 period, which has been attributed to the effects of rising atmospheric CO2 concentrations on plant physiology. To test this hypothesis, we forced the observed trend in the process-based land surface model JSBACH by increasing the sensitivity of stomatal conductance (gs ) to atmospheric CO2 concentration...
March 2017: New Phytologist
https://www.readbyqxmd.com/read/28163353/can-we-be-certain-about-future-land-use-change-in-europe-a-multi-scenario-integrated-assessment-analysis
#17
I P Holman, C Brown, V Janes, D Sandars
The global land system is facing unprecedented pressures from growing human populations and climatic change. Understanding the effects these pressures may have is necessary to designing land management strategies that ensure food security, ecosystem service provision and successful climate mitigation and adaptation. However, the number of complex, interacting effects involved makes any complete understanding very difficult to achieve. Nevertheless, the recent development of integrated modelling frameworks allows for the exploration of the co-development of human and natural systems under scenarios of global change, potentially illuminating the main drivers and processes in future land system change...
February 2017: Agricultural Systems
https://www.readbyqxmd.com/read/28161907/soil-carbon-sequestration-due-to-post-soviet-cropland-abandonment-estimates-from-a-large-scale-soc-field-inventory
#18
Tim-Martin Wertebach, Norbert Hölzel, Immo Kämpf, Andrey Yurtaev, Sergey Tupitsin, Kathrin Kiehl, Johannes Kamp, Till Kleinebecker
The break-up of the Soviet Union in 1991 triggered cropland abandonment on a continental scale, which in turn led to carbon accumulation on abandoned land across Eurasia. Previous studies have estimated carbon accumulation rates across Russia based on large-scale modelling. Studies that assess carbon sequestration on abandoned land based on robust field sampling are rare. We investigated soil organic carbon (SOC) stocks using a randomized sampling design along a climatic gradient from forest steppe to sub taiga in Western Siberia (Tyumen province)...
February 4, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28160645/climate-change-and-the-economics-of-biomass-energy-feedstocks-in-semi-arid-agricultural-landscapes-a-spatially-explicit-real-options-analysis
#19
Courtney M Regan, Jeffery D Connor, Ramesh Raja Segaran, Wayne S Meyer, Brett A Bryan, Bertram Ostendorf
The economics of establishing perennial species as renewable energy feedstocks has been widely investigated as a climate change adapted diversification option for landholders, primarily using net present value (NPV) analysis. NPV does not account for key uncertainties likely to influence relevant landholder decision making. While real options analysis (ROA) is an alternative method that accounts for the uncertainty over future conditions and the large upfront irreversible investment involved in establishing perennials, there have been limited applications of ROA to evaluating land use change decision economics and even fewer applications considering climate change risks...
February 1, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28152459/combined-impacts-of-climate-and-socio-economic-scenarios-on-irrigation-water-availability-for-a-dry-mediterranean-reservoir
#20
João Pedro Nunes, Rita Jacinto, Jan Jacob Keizer
The impacts of climate and associated socio-economic changes on water availability, including supply and demand, quality, and storage volume, were evaluated for the Vale do Gaio reservoir in southern Portugal, located in a dry Mediterranean climate and already under drought stress. The SWAT model was applied with 6 scenarios for 2071-2100, involving two storylines (A1B and B1) with individual changes in climate (-9% rainfall, increasing in winter by +28 to +30%), socio-economic conditions (an increase in irrigation demand by 11%, and a replacement of cereals and pastures by sunflower), and a combination of both...
January 30, 2017: Science of the Total Environment
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