Results 21 to 30 of about 6,067,770 (256)

Human Appropriated Net Primary Productivity of Complex Mosaic Landscapes

Frontiers in Forests and Global Change, 2019
Quantifying human impact on the environment is increasingly important and particularly so in complex mosaic landscapes. Such landscapes are prolific in the developing world, notably in West African, small holder cocoa farming communities.
Christine Moore, Alexandra C. Morel, Alexandra C. Morel, Rebecca Ashley Asare, Michael Adu Sasu, Stephen Adu-Bredu, Yadvinder Malhi   +6 more
doaj   +1 more source

Evidence for strong seasonality in the carbon storage and carbon use efficiency of an Amazonian forest [PDF]

, 2014
The relative contribution of gross primary production and ecosystem respiration to seasonal changes in the net carbon flux of tropical forests remains poorly quantified by both modelling and field studies.
Benoit Burban, Burban, Benoit, Williams, Mathew, Stephane Ponton, Clement Stahl, Damien Bonal, Joana Zaragoza‐Castells, Stahl, Clement, Ponton, Stephane, Patrick Meir, Timothy Charles Hill, Lucy Rowland, Bonal, Damien, Meir, Patrick, Mathew Williams, Zaragoza-Castells, Joana, Rowland, Lucy, Williams, Mathew; id_orcid, Hill, Timothy Charles, Siebicke, Lukas, Lukas Siebicke   +20 more
core   +1 more source

Rapid primary productivity changes in one of the last coastal rainforests : the case of Kahua, Solomon Islands [PDF]

, 2009
The growth of human populations has many direct and indirect impacts on tropical forest ecosystems both locally and globally. This is particularly true in the Solon-ion Islands, where coastal rainforest cover still remains, but where climate change and a
Brown, Molly E., Molly E. Brown, Fazey, Ioan Raymond Albert, Pettorelli, Nathalie, Ioan Fazey, Nathalie Pettorelli, Fazey, Ioan, Garonna, Irene, Irene Garonna   +8 more
core   +1 more source

Crop Yield Estimation in the Canadian Prairies Using Terra/MODIS-Derived Crop Metrics

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
We evaluated the utility of Terra/MODIS-derived crop metrics for yield estimation across the Canadian Prairies. This study was undertaken at the Census Agriculture Region (CAR) and the Rural Municipality (RM) of the province of Saskatchewan, in three ...
Jiangui Liu, Ted Huffman, Budong Qian, Jiali Shang, Qingmou Li, Taifeng Dong, Andrew Davidson, Qi Jing   +7 more
doaj   +1 more source

Control of primary productivity and the significance of photosynthetic bacteria in a meromictic kettle lake. [PDF]

, 1989
During 1986 planktonic primary production and controlling factors were investigated in a small (A0 = 11.8 · 103 m2, Zmax = 11.5 m) meromictic kettle lake (Mittlerer Buchensee).
Tilzer, Max M., J�rg Overmann, Max M. Tilzer, Overmann, Jörg   +3 more
core   +1 more source

Variations of Terrestrial Net Primary Productivity in East Asia

Terrestrial, Atmospheric and Oceanic Sciences, 2012
Due to the heterogeneity and complexity of terrestrial ecosystems of East Asia, a better understanding of relationships between climate change and net primary productivity (NPP) distribution is important to predict future carbon dynamics.
Fangmin Zhang, Weimin Ju, Shuanghe Shen, Shaoqiang Wang, Guirui Yu, Shijie Han   +5 more
doaj   +1 more source

Community level offset of rain use- and transpiration efficiency for a heavily grazed ecosystem in inner Mongolia grassland.

PLoS ONE, 2013
Water use efficiency (WUE) is a key indicator to assess ecosystem adaptation to water stress. Rain use efficiency (RUE) is usually used as a proxy for WUE due to lack of transpiration data.
Ying Z Gao, Marcus Giese, Qiang Gao, Holger Brueck, Lian X Sheng, Hai J Yang   +5 more
doaj   +1 more source

Fire intensity impacts on post-fire temperate coniferous forest net primary productivity [PDF]

Biogeosciences, 2018
Fire is a dynamic ecological process in forests and impacts the carbon (C) cycle through direct combustion emissions, tree mortality, and by impairing the ability of surviving trees to sequester carbon.
A. M. Sparks, C. A. Kolden, A. M. S. Smith, L. Boschetti, D. M. Johnson, M. A. Cochrane   +5 more
doaj   +1 more source

Quantitative Assessment of Factors Influencing the Spatiotemporal Variation in Carbon Dioxide Fluxes Simulated by Multi-Source Remote Sensing Data in Tropical Vegetation

Remote Sensing, 2023
Vegetation plays a vital role in the global carbon cycle, a function of particular significance in regulating carbon dioxide fluxes within tropical ecosystems.
Ruize Xu, Jiahua Zhang, Jingwen Wang, Fengmei Yao, Sha Zhang   +4 more
doaj   +1 more source

Development of a Dynamic Web Mapping Service for Vegetation Productivity Using Earth Observation and in situ Sensors in a Sensor Web Based Approach [PDF]

, 2009
This paper describes the development of a sensor web based approach which combines earth observation and in situ sensor data to derive typical information offered by a dynamic web mapping service (WMS). A prototype has been developed which provides daily
Aldo Bergsma, Bruin, S., de, Sytze de Bruin, Beatus Chuma, Kooistra, L., de Bruin, S., Lammert Kooistra, Chuma, B., Bergsma, A.R.   +8 more
core   +1 more source