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1. Servitization and bioeconomy transitions: Insights on prefabricated wooden elements supply networks

Author:
Pelli, Päivi; Lähtinen, Katja
Source:
Journal of cleaner production 2020 v.244 pp. 118711
ISSN:
0959-6526
Subject:
primary productivity,   etc   ; bioeconomics; business enterprises; manufacturing; natural resources; wood products;     Show all 6 Subjects
Abstract:
... Despite the academic research on servitization in the recent past, few studies have investigated how the increasing role of services as a change in production processes affects the evolving bioeconomy, pursuit of resource efficiency and improved sustainability. The servitization of manufacturing companies, the blurring of the lines between the manufacturing and services sectors as well as the role ...
DOI:
10.1016/j.jclepro.2019.118711

2. Effects of spatial–temporal land cover distribution on gross primary production and net primary production in Schleswig-Holstein, northern Germany

Author:
Ma, Liwei
Source:
Carbon balance and management 2020 v.15 no.1 pp. 3
ISSN:
1750-0680
Subject:
gross primary productivity; net primary productivity,   etc   ; arable soils; carbon sinks; geographic information systems; greenhouse gases; land cover; statistical analysis; vegetation; Germany;     Show all 10 Subjects
Abstract:
... BACKGROUND: Annual total Gross Primary Production (GPP) and Net Primary Production (NPP) and the annual total stored GPP and NPP are tightly coupled to land cover distributions because the distinct vegetation conditions of different land cover classes strongly affect GPP and NPP. Spatial and statistical analysis tools using Geographic Information Systems (GIS) were used to investigate the spatial ...
DOI:
10.1186/s13021-020-00138-3

3. It is not just a ‘trade‐off’: indications for sink‐ and source‐limitation to vegetative and regenerative growth in an old‐growth beech forest

Author:
Mund, Martina; Herbst, Mathias; Knohl, Alexander; Matthäus, Bertrand; Schumacher, Jens; Schall, Peter; Siebicke, Lukas; Tamrakar, Rijan; Ammer, Christian
Source:
Thenew phytologist 2020 v.226 no.1 pp. 111-125
ISSN:
0028-646X
Subject:
gross primary productivity; net primary productivity,   etc   ; Fagus sylvatica; air temperature; carbon dioxide fixation; fruit growing; fruits; old-growth forests; regression analysis; summer; tree growth; vegetative growth; weather; wood;     Show all 14 Subjects
Abstract:
... Controls on tree growth are key issues in plant physiology. The hypothesis of our study was that the interannual variability of wood and fruit production are primarily controlled directly by weather conditions (sink limitation), while carbon assimilation (source limitation) plays a secondary role. We analyzed the interannual variability of weather conditions, gross primary productivity (GPP) and n ...
DOI:
10.1111/nph.16408

4. Does submarine groundwater discharge contribute to summer hypoxia in the Changjiang (Yangtze) River Estuary?

Author:
Guo, Xiaoyi; Xu, Bochao; Burnett, William C.; Wei, Qinsheng; Nan, Haiming; Zhao, Shibin; Charette, Matthew A.; Lian, Ergang; Chen, Guangquan; Yu, Zhigang
Source:
The Science of the total environment 2020 v.719 pp. 137450
ISSN:
0048-9697
Subject:
primary productivity,   etc   ; dissolved oxygen; estuaries; groundwater; hypoxia; models; nutrients; organic matter; radionuclides; radon; rivers; summer;     Show all 12 Subjects
Abstract:
... The Changjiang (Yangtze) River Estuary (CJE) is one of the largest and most intense seasonal hypoxic zones in the world. Here we examine the possibility that submarine groundwater discharge (SGD) may contribute to the summer hypoxia. Spatial distributions of bottom water ²²²Rn suggest a hotspot discharge area in the northern section of the CJE. SGD fluxes were estimated based on a ²²²Rn mass balan ...
DOI:
10.1016/j.scitotenv.2020.137450

5. Quantifying the primary biotic resource use by fisheries: A global assessment

Author:
Luong, Anh D.; Dewulf, Jo; De Laender, Frederik
Source:
The Science of the total environment 2020 v.719 pp. 137352
ISSN:
0048-9697
Subject:
primary productivity,   etc   ; Gadus morhua; environmental factors; fisheries; harvesting; models; trophic levels; Europe;     Show all 8 Subjects
Abstract:
... In this paper, the specific primary production required (SPPR expressed as kg-NPP/kg-fish in wet weight) of more than 1700 marine species were calculated directly from 96 published food web models using the newly developed SPPR calculation framework. The relationship between SPPR and other ecological factors were then statistically analyzed. Among- and within-species variability of SPPR were found ...
DOI:
10.1016/j.scitotenv.2020.137352

6. Paleo-environmental variation and its control on organic matter enrichment of black shales from shallow shelf to slope regions on the Upper Yangtze Platform during Cambrian Stage 3

Author:
Wu, Yaowen; Tian, Hui; Gong, Dajian; Li, Tengfei; Zhou, Qin
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2020 v.545 pp. 109653
ISSN:
0031-0182
Subject:
primary productivity,   etc   ; Cambrian period; basins; models; organic matter; paleoecology; surface water; wells;     Show all 8 Subjects
Abstract:
... To understand the evolution of oceanic redox conditions and organic matter (OM) accumulation in the shelf and slope regions of the Upper Yangtze Platform during Cambrian Stage 3, high-resolution geochemical data were obtained from two wells respectively representing shelf and slope environments. Based on redox proxies, widespread anoxic/euxinic waters with intermittent sulfidic water columns were ...
DOI:
10.1016/j.palaeo.2020.109653

7. The impact of alternative nutrient kinetics and computational grid size on model predicted primary production and hypoxic area in the northern Gulf of Mexico

Author:
Pauer, James J.; Melendez, Wilson; Feist, Timothy J.; Lehrter, John C.; Rashleigh, Brenda; Lowe, Lisa L.; Greene, Richard M.
Source:
Environmental modelling & software 2020 v.126 pp. 104661
ISSN:
1364-8152
Subject:
primary productivity,   etc   ; models; pollution load; river deltas; summer; uncertainty; Gulf of Mexico;     Show all 7 Subjects
Abstract:
... Model structure uncertainty is seldom calculated because of the difficulty and time required to perform such analyses. Here we explore how a coastal model using the Monod versus Droop formulations and a 6 km × 6 km versus 2 km × 2 km computational grid size predict primary production and hypoxic area in the Gulf of Mexico. Results from these models were compared to each other and to observations, ...
DOI:
10.1016/j.envsoft.2020.104661

8. Assessing sediment particle-size effects on benthic algal colonisation and total carbohydrate production

Author:
Dalu, Tatenda; Cuthbert, Ross N.; Chavalala, Tiyisani L.; Froneman, P. William; Wasserman, Ryan J.
Source:
The Science of the total environment 2020 v.710 pp. 136348
ISSN:
0048-9697
Subject:
primary productivity,   etc   ; Bacillariophyceae; algae; benthic organisms; biofilm; biomass; carbohydrates; chlorophyll; ecosystems; particle size; sediments;     Show all 11 Subjects
Abstract:
... Increased sedimentation and siltation associated with anthropogenic environmental change may alter microbial biofilms and the carbohydrates they produce, with potential bottom-up effects in these ecosystems. The present study aimed to examine to what extent carbohydrate (associated with biofilm exopolymer) concentration and benthic algal biomass vary among different sediment types (size-structure ...
DOI:
10.1016/j.scitotenv.2019.136348

9. Assessing the contributions of climate change and human activities to cropland productivity by means of remote sensing

Author:
Yan, Yuchao; Xu, Xiaocong; Liu, Xiaoping; Wen, Youyue; Ou, Jinpei
Source:
International journal of remote sensing 2020 v.41 no.5 pp. 2004-2021
ISSN:
1366-5901
Subject:
net primary productivity,   etc   ; anthropogenic activities; climate change; cropland; remote sensing; China;     Show all 6 Subjects
Abstract:
... It is essential for quantitatively assessing the influences of climate change (CC) and human activities (HA) on cropland productivity to clarify the associated drive mechanisms. However, few studies have quantitatively evaluated their relative contributions to cropland productivity in China. In this study, net primary productivity (NPP) was chosen as an indicator of cropland productivity. The actu ...
DOI:
10.1080/01431161.2019.1681603

10. On the negative carbon isotope excursion across the Wuchiapingian–Changhsingian transition: A regional event in the lower Yangtze region, South China?

Author:
Li, Lijia; Liao, Zhiwei; Lei, Lidan; Lash, Gary G.; Chen, Anqing; Tan, Xianfeng
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2020 v.540 pp. 109501
ISSN:
0031-0182
Subject:
primary productivity,   etc   ; carbon; diagenesis; extinction; fauna; geochemistry; isotopes; organic matter; sea level; tectonics; China;     Show all 11 Subjects
Abstract:
... Previous studies have reported faunal changeover and carbon isotope excursions through the Wuchiapingian–Changhsingian (WC) transition, a geologically significant period of time that bridged two major extinction events: the end-Permian and Guadalupian–Lopingian boundary mass extinctions. However, the causes of the carbon isotope excursion across the WC interval remain poorly understood. This study ...
DOI:
10.1016/j.palaeo.2019.109501

11. Severe drought events inducing large decrease of net primary productivity in mainland China during 1982–2015

Author:
Li, Jun; Wang, Zhaoli; Lai, Chengguang
Source:
The Science of the total environment 2020 v.703 pp. 135541
ISSN:
0048-9697
Subject:
net primary productivity,   etc   ; algorithms; carbon cycle; data collection; drought; evapotranspiration; models; quantitative analysis; terrestrial ecosystems; China;     Show all 10 Subjects
Abstract:
... The analysis of the impact of drought events on terrestrial net primary productivity (NPP) is significant to understand the effects of droughts on regional/global carbon cycling. During the past three decades, terrestrial ecosystems in mainland China have been frequently impacted by drought events. However, quantitative analyses of the variation of NPP induced by droughts are still not enough. The ...
DOI:
10.1016/j.scitotenv.2019.135541

12. Quantitative assessment of dissipative losses of 18 metals

Author:
Helbig, Christoph; Thorenz, Andrea; Tuma, Axel
Source:
Resources, conservation, and recycling 2020 v.153 pp. 104537
ISSN:
0921-3449
Subject:
primary productivity,   etc   ; aluminum; environmental impact; gallium; germanium; iron; nickel; recycling; tellurium;     Show all 9 Subjects
Abstract:
... Dissipative losses of metals are unrecoverable material flows representing the real consumption of metals. They occur during any process in the global metal cycle from primary production to waste management and have different receiving mediums. Avoiding dissipative losses can reduce both primary material requirements and potential negative environmental impacts of metals. However, there are curren ...
DOI:
10.1016/j.resconrec.2019.104537

13. Storage or Run-of-river Reservoirs: Exploring the Ecological Effects of Dam Operation on Stability and Species Interactions of Fish Assemblages

Author:
Baumgartner, Matheus T.; Piana, Pitágoras A.; Baumgartner, Gilmar; Gomes, Luiz C.
Source:
Environmental management 2020 v.65 no.2 pp. 220-231
ISSN:
0364-152X
Subject:
primary productivity,   etc   ; animal communication; aquatic communities; dams (hydrology); environmental impact; fish; models; rivers; water reservoirs;     Show all 9 Subjects
Abstract:
... Water level variation has an important role in the biology of fish species, driving behavior, feeding, and reproduction both in natural and modified environments. In reservoirs, different dam operation schemes result in alternative patterns of water level fluctuations. Storage (STR) reservoirs accumulate water and can vary the water level unpredictably, whereas this variation is more discrete in r ...
DOI:
10.1007/s00267-019-01243-x

14. Antagonistic co-limitation through ion promiscuity – On the metal sensitivity of Thalassiosira oceanica under phosphorus stress

Author:
Snow, Joseph T.; Holdship, Philip; Rickaby, Rosalind E.M.
Source:
The Science of the total environment 2020 v.699 pp. 134080
ISSN:
0048-9697
Subject:
primary productivity,   etc   ; Thalassiosira; arsenates; arsenic; growth retardation; microbial communities; molybdates; oceanography; phosphates; phosphorus; trophic relationships; vanadium;     Show all 12 Subjects
Abstract:
... Nutrient limitation of primary producers is a fundamental principle in biogeochemical oceanography and has been used with great success in prescribing understanding to patterns of marine primary productivity. In recent years the paradigm of nutrient limitation has expanded from single nutrient limitation towards concepts of co-limitation by multiple resources. Interactive effects between multiple ...
DOI:
10.1016/j.scitotenv.2019.134080

15. Heterogeneous seawater phosphorus concentrations during the Sturtian glaciation: Evidence from P/Fe ratios of Fulu Formation ironstone in South China

Author:
Li, Fangbing; Lang, Xianguo; Ma, Haoran; Cui, Yixin; Pei, Haoxiang; Shen, Bing
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2020 v.537 pp. 109409
ISSN:
0031-0182
Subject:
primary productivity,   etc   ; Cryogenian period; Ediacaran period; animals; evolution; glaciation; iron; oceans; organic matter; phosphorus; seawater; China;     Show all 12 Subjects
Abstract:
... Phosphorus (P) is one of the key bio-limiting elements in the modern ocean, and controls marine primary productivity over the geological time scales. It is proposed that the Ediacaran atmosphere oxygenation and animal evolution might have been triggered by high seawater P concentration in Cryogenian oceans. Seawater P concentration can be reconstructed by the ratio of phosphorus to iron [expressed ...
DOI:
10.1016/j.palaeo.2019.109409

16. Evaluating Mineral Phosphorus Fluxes in Eutrophic Waters of the Northwestern Black Sea

Author:
Parkhomenko, A. V.; Kukushkin, A. S.
Source:
Water resources 2020 v.47 no.1 pp. 137-146
ISSN:
0097-8078
Subject:
primary productivity,   etc   ; eutrophication; phosphates; phosphorus; river water; water salinity; Black Sea;     Show all 7 Subjects
Abstract:
... Many-year data have been used to construct the spatial distributions of water salinity and calculate the seasonal and normal annual occurrence areas of transformed river waters in the northwestern Black Sea. Normal annual estimates of the major phosphate inflow and outflow fluxes have been obtained for the area of such water occurrence. The eutrophic status of water in this area has been shown to ...
DOI:
10.1134/S009780782001011X

17. Production of Pondweeds (Potamogeton, Stuckenia, Potamogetonaceae) in Rivers in the North of European Russia

Author:
Chemeris, E. V.; Bobrov, A. A.
Source:
Water resources 2020 v.47 no.1 pp. 171-177
ISSN:
0097-8078
Subject:
primary productivity,   etc   ; Potamogeton lucens; Potamogeton natans; Potamogeton perfoliatus; Stuckenia; ecosystems; organic matter; rivers; Russia;     Show all 9 Subjects
Abstract:
... For the first time, summarized data on the production of nine species and ten hybrids of pondweed (Potamogeton, Stuckenia, Potamogetonaceae) are given for ecosystems of small and medium rivers in the north of European Russia. The pondweed is shown to be an important producer of primary organic matter. A significant contribution to primary production in rivers in the region is due to large-size pon ...
DOI:
10.1134/S0097807820010194

18. Comparative Characteristics of Phytoplankton and Epiphyton Productivity in the Upper Volga Reservoirs

Author:
Mineeva, N. M.; Metelyeva, N. Yu.
Source:
Inland water biology 2019 v.12 no.Supplement 1 pp. 37-44
ISSN:
1995-0829
Subject:
primary productivity,   etc   ; algae; biomass; chlorophyll; heat; phytoplankton;     Show all 6 Subjects
Abstract:
... Comparative data from field observations in August 2005 and 2013 on phytoplankton and epiphyton productivity in the Ivankovo and Uglich reservoirs (Upper Volga) are presented. The average chlorophyll content (Chl a) varies from 7.6 ± 1.6 to 39.1 ± 0.7 μg/L in plankton and from 6.6 ± 2.8 to 28.4 ± 4.2 mg/m² of the substrate in epiphyton; the daily primary production values are 0.55–1.64 mg C/L and ...
DOI:
10.1134/S1995082919050146

19. Correction to: The carbon pump supports high primary production in a shallow lake

Author:
Andersen, Mikkel René; Kragh, Theis; Martinsen, Kenneth Thorø; Kristensen, Emil; Sand-Jensen, Kaj
Source:
Aquatic sciences 2019 v.81 no.2 pp. 28
ISSN:
1015-1621
Subject:
primary productivity,   etc   ; carbon; carbon dioxide; lakes; oxygen;     Show all 5 Subjects
Abstract:
... In the original publication, the subscript number 2 were incorrectly added without the subscript format as ‘CO2’ and ‘O2’ in Figs. 4 and 5 legends. ...
DOI:
10.1007/s00027-019-0625-4

20. Assessing the cross-site and within-site response of potential production to atmospheric demand for water in Eucalyptus plantations

Author:
Lim, Hyungwoo; Alvares, Clayton Alcarde; Ryan, Michael G.; Binkley, Dan
Source:
Forest ecology and management 2020 v.464 pp. 118068
ISSN:
0378-1127
Subject:
gross primary productivity; net primary productivity,   etc   ; Eucalyptus; biomass production; irrigation; photosynthesis; photosynthetically active radiation; plantations; prediction; simulation models; soil water; stomata; temperature; timber production; tropics; vapor pressure deficit; wood;     Show all 17 Subjects
Abstract:
... Plant water deficits arise from low soil water and high atmospheric demand for water (expressed as vapor pressure deficit; VPD). Soil water and VPD often covary making it difficult to examine the effect of only VPD on biomass production. We used four Eucalyptus plantation sites where one treatment maintained high soil water with irrigation to evaluate the response of forest production to VPD indep ...
DOI:
10.1016/j.foreco.2020.118068