Results 81 to 90 of about 6,042,123 (195)

Estimating Net Primary Productivity under Climate Change by Application of Global Forest Model (G4M) [PDF]

open access: yes, 2016
Net primary productivity (NPP) is considered as an important indicator for forest ecosystem since the role of the forest is highlighted as a key sector for mitigating climate change.
Sung, S.   +3 more
core   +1 more source

Large Regional Variation in Global Impacts of Agriculture on Terrestrial Insects and Other Arthropods

open access: yesGlobal Change Biology Communications, Volume 1, Issue 3, September 2026.
We show that impacts of agriculture on arthropod biodiversity are notably less negative in Europe than in other regions, which we find is driven by a degraded baseline, a selection bias of reference sites, and novel species compositions in agriculture that favour widespread habitat generalists and non‐native species.
Daan Scheepens   +3 more
wiley   +1 more source

The Relationship Between Human Activities and Ecosystem Service Supply–Demand From the Perspective of Land Use Transformation

open access: yesLand Degradation &Development, Volume 37, Issue 15, Page 10763-10783, September 2026.
ABSTRACT The equilibrium between ecosystem service supply and demand relationships (ESSDR) is essential for regional sustainable development. Understanding the relationship between human activity intensity (HAI) and ESSDR from the perspective of land use transformation (LT) is important for ecological management and governance.
Rongping Liang   +6 more
wiley   +1 more source

Biodiversity: Net primary productivity relationships are eliminated by invasive species dominance [PDF]

open access: yes, 2023
Experiments often find that net primary productivity (NPP) increases with species richness when native species are considered. However, relationships may be altered by exotic (non-native) species, which are hypothesized to reduce richness but increase ...
Polley, H. Wayne   +4 more
core  

Adverse Effects of Ozone Pollution on Net Primary Productivity in the North China Plain

open access: yesGeophysical Research Letters
Tropospheric ozone significantly damages vegetation and reduces net primary productivity (NPP). We developed a stable linear NPP response model based on accumulated ozone exposure over a threshold of 40 parts per billion (ppb) (AOT40).
X. Long   +12 more
doaj   +1 more source

Spatially Heterogeneous and Nonlinear Responses of Ecosystem Service Value to Human Activity Intensity in an Arid Mountain–Oasis–Desert Urban Agglomeration

open access: yesLand Degradation &Development, Volume 37, Issue 15, Page 11277-11297, September 2026.
ABSTRACT Rapid urbanization and agricultural expansion are reshaping human–environment relationships in arid regions; however, the spatially heterogeneous and nonlinear relationships between human activities and ecosystem services remain insufficiently understood.
Hui Zhao   +4 more
wiley   +1 more source

Aboveground Net Primary Productivity in Grazed and Ungrazed pastures: Grazing Optimisation Hypothesis or Local Extinction of Vegetation Species [PDF]

open access: yes, 2009
The controversy that has surrounded herbivory studies in the last few decades prompted our investigation to establish the extent to which herbivore optimisation hypothesis or compensatory growth evidence is real.
Jesse T. Njoka   +4 more
core  

Simulation by remote sensing and analysis of net primary productivity of vegetation based on topographical correction

open access: yes, 2013
The study on simulation of the net primary productivity (NPP) was significant in monitoring carbon balance and understanding deeply the global carbon cycle.
Yu, Jian   +5 more
core   +1 more source

Pyrosome fecal pellet production: Implications for grazing and carbon export

open access: yesLimnology and Oceanography, Volume 71, Issue 9, September 2026.
Abstract This study quantifies the fecal pellet production and pellet sinking rates of the pyrosome Pyrosoma atlanticum in the Southern California Current across a range of conditions, from the productive nearshore to the oligotrophic offshore. Fecal pellet production rates averaged 1310 ± 76 pellets h−1, resulting in the production of up to 390,380 ...
Grace F. Cawley   +5 more
wiley   +1 more source

Appendix C. Net primary productivity (NPP), turnover, mortality, and carbon sequestration in plantations of five experimental tree species in lowland Costa Rica.

open access: yes, 2016
Net primary productivity (NPP), turnover, mortality, and carbon sequestration in plantations of five experimental tree species in lowland Costa ...
Ann E. Russell (2905793)   +4 more
core   +1 more source

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