Results 1 to 10 of about 19,442 (199)

Net primary productivity of forest stands in New Hampshire estimated from Landsat and MODIS satellite data [PDF]

Carbon Balance and Management, 2007
Background A simulation model that relies on satellite observations of vegetation cover from the Landsat 7 sensor and from the Moderate Resolution Imaging Spectroradiometer (MODIS) was used to estimate net primary productivity (NPP) of forest stands at ...
Genovese Vanessa, Gross Peggy, Potter Christopher, Smith Marie-Louise   +3 more
doaj   +3 more sources

Grazing intensity drives above–belowground productivity trade-offs and reveals belowground dominance in temperate herbaceous marsh wetlands [PDF]

Frontiers in Plant Science
IntroductionLivestock grazing, as a major anthropogenic disturbance, significantly affects plant species diversity and net primary productivity (NPP) in wetland ecosystems and their relationships with soil properties.
Mingyue Pan, Linguang Luan, Yingqi Han, Qiong Han, Weihong Zhu, Jingzhi Wang   +5 more
doaj   +2 more sources

Comparing global models of terrestrial net primary productivity (NPP): overview and key results

Global Change Biology, 1999
SummarySeventeen global models of terrestrial biogeochemistry were compared with respect to annual and seasonal fluxes of net primary productivity (NPP) for the land biosphere. The comparison, sponsored by IGBP‐GAIM/DIS/GCTE, used standardized input variables wherever possible and was carried out through two international workshops and over the ...
Wolfgang Cramer, AlbertE Bondeau, Galina Churkina   +2 more
exaly   +8 more sources

Research on the estimation method of crop net primary productivity based on improved CASA model [PDF]

Frontiers in Plant Science
Net Primary Productivity (NPP) is a vital indicator for evaluating the carbon source and sink capacities of ecosystems, significantly influencing assessments of agricultural productivity and carbon cycle studies.
Wanning Li, Zhuo Wang, Chunling Chen, Ying Yin, Yuanji Cai, Hao Han, Minghuan Liu, Ziyi Feng   +7 more
doaj   +2 more sources

Quantifying the contributions of climate factors and human activities to variations of net primary productivity in China from 2000 to 2020

Frontiers in Earth Science, 2023
Net primary productivity (NPP) plays a vital role in the globe carbon cycle. Quantitative assessment of the effects of climate changes and human activities on net primary productivity dynamics is vital for understanding the driving mechanisms of ...
Zijian Li, Jiangping Chen, Jiangping Chen, Zhanpeng Chen, Zongyao Sha, Zongyao Sha, Jianhua Yin, Zhaotong Chen   +7 more
doaj   +3 more sources

The impact of vegetation phenology changes on the relationship between climate and net primary productivity in Yunnan, China, under global warming

Frontiers in Plant Science, 2023
Climate influences net primary productivity (NPP) either directly or indirectly via phenology. Therefore, clarifying the indirect effects of climate on NPP through phenology is of utmost importance.
Xu Chen, Xu Chen, Yaping Zhang
doaj   +1 more source

Inconsistent changes in NPP and LAI determined from the parabolic LAI versus NPP relationship

Ecological Indicators, 2021
Rapidly altering vegetation dynamics, is an aspect of global environmental change which has consequences for ecosystem structure, function, and the provision of ecosystem services.
Ning Pan, Shuai Wang, Fangli Wei, Miaogen Shen, Bojie Fu   +4 more
doaj   +1 more source

GRASSLAND NPP MONITORING BASED ON MULTI-SOURCE REMOTE SENSING DATA FUSION [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
Vegetation is an important part of the terrestrial ecosystem. It plays an important role in the energy and material exchange of the ground-atmosphere system and is a key part of the global carbon cycle process.Climate change has an important influence on
Y. R. Cai, J. H. Zheng, J. H. Zheng, J. H. Zheng, M. J. Du, C. Mu, J. Peng   +6 more
doaj   +1 more source

Quantifying and Mapping Human Appropriation of Net Primary Productivity in Qinghai Grasslands in China

Agriculture, 2022
Human appropriation of net primary productivity (HANPP) is an important indicator for assessing ecological sustainability. However, the spatiotemporal dynamics of HANPP in the Qinghai grasslands remain unclear.
Xiaotao Huang, Yongsheng Yang, Chunbo Chen, Hongfei Zhao, Buqing Yao, Zhen Ma, Li Ma, Huakun Zhou   +7 more
doaj   +1 more source

Impact of climate change on net primary production (NPP) in south Iran

Environmental Monitoring and Assessment, 2020
Climate change is a natural hazard which threatens the sustainable development of human health, food security, economic well-being, and natural resources. It also affects photosynthesis, plant respiration, and decomposition of organic matter that contribute to atmospheric carbon flow.
Zahra Azhdari, Elham Rafeie Sardooi, Ommolbanin Bazrafshan, Hossein Zamani, Vijay P. Singh, Mohsen Mohseni Saravi, Mohamadreza Ramezani   +6 more
openaire   +3 more sources