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You searched for: Subject "primary productivity" Remove constraint Subject: "primary productivity"
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1. CO2 dynamics in a small and old subtropical reservoir in East Asia: Environmental controls driving seasonal and spatial variability

Author:
Chun Ngai Chan; Matthew J. Bogard; Fong Ching Ma; Yu Ching Ip; Boyi Liu; Shuai Chen; Lishan Ran
Source:
Science of the total environment 2023 v.856 pp. 159047
ISSN:
0048-9697
Subject:
primary productivity,   etc   ; carbon; carbon dioxide; environment; greenhouse gases; hydrochemistry; lentic systems; lotic systems; solar radiation; surface water; China;     Show all 11 Subjects
Abstract:
... Inland waters have been increasingly viewed as hotspots for greenhouse gas (GHG) emissions owing to their strong capability to intercept and mineralize carbon from the terrestrial environment. Although small waterbodies in humid subtropical climates have the potential to emit considerable amounts of GHG, their emission patterns have remained understudied. This study involved intensive measurements ...
DOI:
10.1016/j.scitotenv.2022.159047

2. Precipitation controls the annual net primary productivity in sown pastures across a precipitation gradient in dry subtropical Chaco

Author:
José M. Lizzi; Martín F. Garbulsky
Source:
Journal of arid environments 2023 v.208 pp. 104863
ISSN:
0140-1963
Subject:
net primary productivity,   etc   ; Cenchrus ciliaris; Megathyrsus maximus; atmospheric precipitation; biomass; cultivars; forage; forage yield; indigenous species; pastures; temporal variation; water use efficiency; Argentina;     Show all 13 Subjects
Abstract:
... Exotic pasture species are increasingly replacing native vegetation in subtropical areas because of their potential to increase forage yields. However, there is a scarce analysis of the relationship between forage yield and mean annual precipitation across regional gradients. We analyzed at a regional scale the temporal relationship between the aboveground net primary productivity (ANPP) and the p ...
DOI:
10.1016/j.jaridenv.2022.104863

3. Quantification and uncertainty of root growth stimulation by elevated CO2 in a mature temperate deciduous forest

Author:
Clare Ziegler; Aleksandra Kulawska; Angeliki Kourmouli; Liz Hamilton; Zongbo Shi; A. Rob MacKenzie; Rosemary J. Dyson; Iain G. Johnston
Source:
Science of the total environment 2023 v.854 pp. 158661
ISSN:
0048-9697
Subject:
net primary productivity,   etc   ; biomass; biosphere; carbon; carbon dioxide; carbon dioxide enrichment; deciduous forests; fine roots; image analysis; root growth; soil; statistical inference; uncertainty;     Show all 13 Subjects
Abstract:
... Increasing CO₂ levels are a major global challenge, and the potential mitigation of anthropogenic CO₂ emissions by natural carbon sinks remains poorly understood. The uptake of elevated CO₂ (eCO₂) by the terrestrial biosphere, and subsequent sequestration as biomass in ecosystems, remain hard to quantify in natural ecosystems. Here, we combine field observations of fine root stocks and flows, deri ...
DOI:
10.1016/j.scitotenv.2022.158661

4. Threshold indicators of primary production in the north-east Atlantic for assessing environmental disturbances using 21 years of satellite ocean colour

Author:
Gavin H. Tilstone; Peter E. Land; Silvia Pardo; Onur Kerimoglu; Dimitry Van der Zande
Source:
Science of the total environment 2023 v.854 pp. 158757
ISSN:
0048-9697
Subject:
primary productivity,   etc   ; case studies; chlorophyll; climatology; coasts; color; dust; ecosystems; marine environment; phenology; phosphorus; phytoplankton; remote sensing; riparian areas; satellites; total nitrogen; North Sea;     Show all 17 Subjects
Abstract:
... Primary production (PP) is highly sensitive to changes in the ecosystem and can be used as an early warning indicator for disturbance in the marine environment. Historic indicators of good environmental status of the north-east (NE) Atlantic and north-west (NW) European Seas suggested that daily PP should not exceed 2–3 g C m⁻² d⁻¹ during phytoplankton blooms and that annual rates should be <300 g ...
DOI:
10.1016/j.scitotenv.2022.158757

5. Ecosystem carbon dioxide exchange and water use efficiency in a triple-cropping rice paddy in Southern India: A two-year field observation

Author:
Aung Zaw Oo; Akinori Yamamoto; Keisuke Ono; Chellappan Umamageswari; Masayoshi Mano; Koothan Vanitha; Palanisamy Elayakumar; Shoji Matsuura; Kaliappan Sathiya Bama; Marimuthu Raju; Kazuyuki Inubushi; Shigeto Sudo; Naoko Saitoh; Sachiko Hayashida; Venkatachalam Ravi; Vellaisamy Ambethgar
Source:
Science of the total environment 2023 v.854 pp. 158541
ISSN:
0048-9697
Subject:
gross primary productivity,   etc   ; atmospheric precipitation; carbon; carbon dioxide; dry season; ecosystem respiration; ecosystems; eddy covariance; environment; evapotranspiration; net ecosystem production; paddies; photosynthesis; rice; solar radiation; summer; water conservation; water use efficiency; wet season; India;     Show all 20 Subjects
Abstract:
... The lowland tropical triple-cropping rice system has unique characteristics that affect the hydrological, nutrient, and atmospheric environments. To better understand the ecosystem carbon and water dynamics of a triple-cropping rice paddy from the perspective of sustainability, ecosystem-level CO₂ flux and ecosystem water use efficiency (eWUE) were observed using eddy covariance over 2 years (2016 ...
DOI:
10.1016/j.scitotenv.2022.158541

6. Environmental hormesis of non-specific and specific adaptive mechanisms in plants

Author:
Elena A. Erofeeva
Source:
Science of the total environment 2022 v.804 pp. 150059
ISSN:
0048-9697
Subject:
primary productivity,   etc   ; biosphere; hormesis;     Show all 3 Subjects
Abstract:
... Adaptive responses of plants are important not only for local processes in populations and communities but also for global processes in the biosphere through the primary production of ecosystems. In recent years, the concept of environmental hormesis has been increasingly used to explain the adaptive responses of living organisms, including plants, to low doses of natural factors, both abiotic and ...
DOI:
10.1016/j.scitotenv.2021.150059

7. Nitrification and denitrification in the Community Land Model compared with observations at Hubbard Brook Forest

Author:
Cynthia Nevison; Christine Goodale; Peter Hess; William R. Wieder; Julius Vira; Peter M. Groffman
Source:
Ecological applications 2022 v.32 no.4 pp. e2530
ISSN:
1051-0761
Subject:
gross primary productivity; net primary productivity,   etc   ; ammonium; carbon; denitrification; forests; models; nitrates; nitrification; nitrogen; soil; New Hampshire;     Show all 12 Subjects
Abstract:
... Models of terrestrial system dynamics often include nitrogen (N) cycles to better represent N limitations on terrestrial carbon (C) uptake, but simulating the fate of N in ecosystems has proven challenging. Here, key soil N fluxes and flux ratios from the Community Land Model version 5.0 (CLM5.0) are compared with an extensive set of observations from the Hubbard Brook Forest Long‐Term Ecological ...
DOI:
10.1002/eap.2530

8. Intercomparison of global terrestrial carbon fluxes estimated by MODIS and Earth system models

Author:
Qiwen Hu; Tingting Li; Xi Deng; Tongwen Wu; Panmao Zhai; Danqing Huang; Xingwang Fan; Yakun Zhu; Yongcheng Lin; Xiucheng Xiao; Xianyan Chen; Xiaosong Zhao; Lili Wang; Zhangcai Qin
Source:
Science of the total environment 2022 v.810 pp. 152231
ISSN:
0048-9697
Subject:
gross primary productivity; net primary productivity,   etc   ; carbon; climate; ecosystems; environment; global carbon budget; model validation; models; remote sensing;     Show all 10 Subjects
Abstract:
... Earth system models (ESMs) have been widely used to simulate global terrestrial carbon fluxes, including gross primary production (GPP) and net primary production (NPP). Assessment of such GPP and NPP products can be valuable for understanding the efficacy of certain ESMs in simulating the global carbon cycle and future climate impacts. In this work, we studied the model performance of 22 ESMs par ...
DOI:
10.1016/j.scitotenv.2021.152231

9. Assessment of Explicit Representation of Dynamic Viral Processes in Regional Marine Ecological Models

Author:
Le Xie; Rui Zhang; Ya-Wei Luo
Source:
Viruses 2022 v.14 no.7 pp. -
ISSN:
1999-4915
Subject:
primary productivity,   etc   ; carbon; mortality; Arabian Sea;     Show all 4 Subjects
Abstract:
... Viruses, the most abundant microorganisms in the ocean, play important roles in marine ecosystems, mainly by killing their hosts and contributing to nutrient recycling. However, in models simulating ecosystems in real marine environments, the virus-mediated mortality (VMM) rates of their hosts are implicitly represented by constant parameters, thus ignoring the dynamics caused by interactions betw ...
DOI:
10.3390/v14071448

10. Assessment of vegetation change on the Mongolian Plateau over three decades using different remote sensing products

Author:
Yu Bai; Shenggong Li; Menghang Liu; Qun Guo
Source:
Journal of environmental management 2022 v.317 pp. 115509
ISSN:
0301-4797
Subject:
gross primary productivity; net primary productivity,   etc   ; carbon; climate change; fractional vegetation cover; leaf area index; remote sensing; Central Asia;     Show all 8 Subjects
Abstract:
... As a major component of temperate steppes in the Eurasian continent, the Mongolian Plateau (MP) plays a pivotal role in the East Asian and global carbon cycles. This paper describes the use of five remote sensing indices derived from satellite data to characterize vegetation cover on MP, namely: gross primary production (GPP), net primary production (NPP), normalized difference vegetation index (N ...
DOI:
10.1016/j.jenvman.2022.115509

11. Climate change impacts plant carbon balance, increasing mean future carbon use efficiency but decreasing total forest extent at dry range edges

Author:
Justin M. Mathias; Anna T. Trugman
Source:
Ecology letters 2022 v.25 no.2 pp. 498-508
ISSN:
1461-023X
Subject:
gross primary productivity; net primary productivity,   etc   ; canopy; canopy height; carbon; climate; climate change; forests; lidar; models; shrublands; species diversity; uncertainty;     Show all 13 Subjects
Abstract:
... Carbon use efficiency (CUE) represents how efficient a plant is at translating carbon gains through gross primary productivity (GPP) into net primary productivity (NPP) after respiratory costs (Rₐ). CUE varies across space with climate and species composition, but how CUE will respond to climate change is largely unknown due to uncertainty in Rₐ at novel high temperatures. We use a plant physiolog ...
DOI:
10.1111/ele.13945

12. Parasite‐driven cascades or hydra effects: Susceptibility and foraging depression shape parasite–host–resource interactions

Author:
Jason Cosens Walsman; Alexander Thomas Strauss; Spencer Ryan Hall
Source:
Functional ecology 2022 v.36 no.5 pp. 1268-1278
ISSN:
0269-8463
Subject:
primary productivity,   etc   ; Hydra; models; mortality; parasites; zooplankton;     Show all 6 Subjects
Abstract:
... Parasites kill hosts but also can indirectly increase the abundance of their resources. Given this resource feedback, how much will parasites decrease host density? Can they increase host density? Seeking answers, we integrate trait measurements, a resource–host–parasite model and experimental epidemics with plankton. This combination reveals how parasites may decrease or increase host density. Th ...
DOI:
10.1111/1365-2435.14030

13. Submarine groundwater discharge impacts on marine aquaculture: A mini review and perspective

Author:
Jianan Liu; Jinzhou Du
Source:
Current opinion in environmental science & health 2022 v.26 pp. 100325
ISSN:
2468-5844
Subject:
primary productivity,   etc   ; coastal water; fish; groundwater; macroalgae; mariculture;     Show all 6 Subjects
Abstract:
... Submarine groundwater discharge (SGD) acts as a conduit by which terrestrial materials enter coastal seas. In the present review, the impacts of SGD on marine aquaculture species are examined. SGD directly inputs to coastal water, modifying the hydrological conditions can enhance the growth rates of fish. More importantly, SGD-borne nutrient support primary productivity in various coastal ecosyste ...
DOI:
10.1016/j.coesh.2021.100325

14. Phytoplankton community composition, carbon sequestration, and associated regulatory mechanisms in a floodplain lake system

Author:
Junjie Jia; Yang Gao; Kun Sun; Yao Lu; Jing Wang; Kun Shi
Source:
Environmental pollution 2022 v.306 pp. 119411
ISSN:
0269-7491
Subject:
gross primary productivity; net primary productivity,   etc   ; carbon; carbon sequestration; community structure; dry season; floodplains; hydrology; lakes; models; photosynthesis; phytoplankton; pollution; solar radiation; wet season;     Show all 15 Subjects
Abstract:
... Phytoplankton contribute approximately 50% to the global photosynthetic carbon (C) fixation. However, our understanding of the corresponding C sequestration capacity and driving mechanisms associated with each individual phytoplankton taxonomic group is limited. Particularly in the hydrologically dynamic system with highly complex surface hydrological processes (floodplain lake systems). Through i ...
DOI:
10.1016/j.envpol.2022.119411

15. Knowledge Mapping of bioeconomy: A bibliometric analysis

Author:
Xun Wei; Qianqian Liu; Aqing Pu; Shutong Wang; Feifei Chen; Lei Zhang; Yong Zhang; Zhenying Dong; Xiangyuan Wan
Source:
Journal of cleaner production 2022 v.373 pp. 133824
ISSN:
0959-6526
Subject:
primary productivity,   etc   ; bibliometric analysis; bioeconomics; landscapes; social networks; stakeholders;     Show all 6 Subjects
Abstract:
... With its cross-cutting nature, bioeconomy offers a unique opportunity to address complex and inter-connected challenges, while achieving economic goals. This fact has pushed many stakeholders to turn to bioeconomy as a path towards sustainable primary production and processing systems. An increasing number of studies on bioeconomy have reflected the multi-disciplinary nature and the constantly evo ...
DOI:
10.1016/j.jclepro.2022.133824

16. Physical characteristics of northern forested lakes predict sensitivity to climate change

Author:
Mark B. Edlund; Joy M. Ramstack Hobbs; Adam J. Heathcote; Daniel R. Engstrom; Jasmine E. Saros; Kristin E. Strock; William O. Hobbs; Norman A. Andresen; David D. VanderMeulen
Source:
Hydrobiologia 2022 v.849 no.12 pp. 2705-2729
ISSN:
0018-8158
Subject:
primary productivity,   etc   ; Bacillariophyceae; algae; carbon; climate; lakes; silica; watersheds;     Show all 8 Subjects
Abstract:
... Evidence suggests that boreal-lake ecosystems are changing rapidly, but with variable ecological responses, due to climate warming. Paleolimnological analysis of 27 undeveloped northern forested lakes showed significant and potentially climate-mediated shifts in diatom communities and increased carbon and biogenic silica burial. We hypothesize the sensitivity of northern forested lakes to climate ...
DOI:
10.1007/s10750-022-04887-9

17. Organic phosphorus regeneration enhanced since eutrophication occurred in the sub-deep reservoir

Author:
Jia Yu; Yan Zeng; Jingan Chen; Peng Liao; Haiquan Yang; Chao Yin
Source:
Environmental pollution 2022 v.306 pp. 119350
ISSN:
0269-7491
Subject:
primary productivity,   etc   ; biogeochemical cycles; eutrophication; lakes; organic phosphorus; sediments;     Show all 6 Subjects
Abstract:
... Lake eutrophication remains a serious environmental problem of global significance, and phosphorus (P) plays a key role in lake eutrophication. Internal P loading, as a result of P release from sediments, is gathering more and more recognition as an important source governing the P availability in these ecosystems. Anoxic condition can promote the release of P associated with Fe oxides, which has ...
DOI:
10.1016/j.envpol.2022.119350

18. Divergent responses of terrestrial carbon use efficiency to climate variation from 2000 to 2018

Author:
Chengcheng Gang; Zhuonan Wang; Yongfa You; Yue Liu; Rongting Xu; Zihao Bian; Naiqing Pan; Xuerui Gao; Mingxun Chen; Man Zhang
Source:
Global and planetary change 2022 v.208 pp. 103709
ISSN:
0921-8181
Subject:
gross primary productivity; net primary productivity,   etc   ; Earth system science; carbon; climatic factors; cold; ecosystem management; path analysis; temperate zones; temperature; vegetation; Central Africa; India; South America;     Show all 14 Subjects
Abstract:
... Carbon use efficiency (CUE) refers to the allocation of photosynthesized products by plants and is commonly used to measure primary production in terrestrial ecosystems. Despite the fact that the effects of climate variation on vegetation CUE have been studied at various spatial scales, there is still a lack of consensus as to how vegetation CUE responds to climate factors. The objective of this s ...
DOI:
10.1016/j.gloplacha.2021.103709

19. End-to-End Neural Interpolation of Satellite-Derived Sea Surface Suspended Sediment Concentrations

Author:
Jean-Marie Vient; Ronan Fablet; Frédéric Jourdin; Christophe Delacourt
Source:
Remote Sensing 2022 v.14 no.16 pp. -
ISSN:
2072-4292
Subject:
primary productivity,   etc   ; data collection; microorganisms; photosynthesis; sediments; suspended sediment; turbidity;     Show all 7 Subjects
Abstract:
... The characterization of suspended sediment dynamics in the coastal ocean provides key information for both scientific studies and operational challenges regarding, among others, turbidity, water transparency and the development of micro-organisms using photosynthesis, which is critical to primary production. Due to the complex interplay between natural and anthropogenic forcings, the understanding ...
DOI:
10.3390/rs14164024

20. Microbial diversity through an oceanographic lens: refining the concept of ocean provinces through trophic‐level analysis and productivity‐specific length scales

Author:
Cora Hörstmann; Pier Luigi Buttigieg; Uwe John; Eric J. Raes; Dieter Wolf‐Gladrow; Astrid Bracher; Anya M. Waite
Source:
Environmental microbiology 2022 v.24 no.1 pp. 404-419
ISSN:
1462-2912
Subject:
primary productivity,   etc   ; autotrophs; chlorophyll; heterotrophs; latitude; trophic levels; Atlantic Ocean;     Show all 7 Subjects
Abstract:
... In the marine realm, microorganisms are responsible for the bulk of primary production, thereby sustaining marine life across all trophic levels. Longhurst provinces have distinct microbial fingerprints; however, little is known about how microbial diversity and primary productivity change at finer spatial scales. Here, we sampled the Atlantic Ocean from south to north (~50°S–50°N), every ~0.5° la ...
DOI:
10.1111/1462-2920.15832