Results 231 to 240 of about 6,350,367 (271)

Extreme drought does not alter the stability of aboveground net primary productivity but decreases the stability of belowground net primary productivity in a desert steppe of northern China

Environmental Science and Pollution Research, 2022
Extreme droughts strongly impact grassland ecology, both functionally and structurally. However, a comprehensive understanding of the drought impacts on the ecosystem stability is critical for its sustainable development under changing climate. We experimentally report the impact of extreme drought on the temporal stability of aboveground net primary ...
Xiangyun, Li, Xiaoan, Zuo, Xueyong, Zhao, Shaokun, Wang, Ping, Yue, Chong, Xu, Qiang, Yu, Eduardo, Medina-Roldán   +7 more
openaire   +2 more sources

Salinity Influences on Aboveground and Belowground Net Primary Productivity in Tidal Wetlands

Journal of Hydrologic Engineering, 2017
AbstractTidal freshwater wetlands are one of the most vulnerable ecosystems to climate change and rising sea levels. However salinification within these systems is poorly understood, therefore, productivity (litterfall, woody biomass, and fine roots) were investigated on three forested tidal wetlands [(1) freshwater, (2) moderately saline, and (3 ...
Kathryn N. Pierfelice, B. Graeme Lockaby, Ken W. Krauss, William H. Conner, Gregory B. Noe, Matthew C. Ricker   +5 more
openaire   +1 more source

Spatial and Temporal Variability in Aboveground Net Primary Production of Uruguayan Grasslands

Rangeland Ecology & Management, 2014
Aboveground net primary production (ANPP) is a variable that integrates many aspects of ecosystem functioning. Variability in ANPP is a key control for carbon input and accumulation in grasslands systems. In this study, we analyzed the spatial and temporal variability of ANPP of Uruguayan grasslands during 2000–2010.
Anaclara Guido, Ramón Díaz Varela, Pablo Baldassini, José Paruelo   +3 more
openaire   +1 more source

Desertification alters patterns of aboveground net primary production in Chihuahuan ecosystems

Global Change Biology, 2002
AbstractThe Chihuahuan desert of New Mexico, USA, has changed in historical times from semiarid grassland to desert shrublands dominated byLarrea tridentataandProsopis glandulosa. Similar displacement of perennial grasslands by shrubs typifies desertification in many regions.
Laura F. Huenneke, John P. Anderson, Marta Remmenga, William H. Schlesinger   +3 more
openaire   +1 more source

Patterns and Controls of Aboveground Net Primary Production in Tallgrass Prairie

1998
Abstract An analysis of the patterns and control of energy input into tallgrass prairie through primary producers can provide a basis for more comprehensive assessments of the causes and consequences of dynamics in populations, communities, and ecosystem-level components of this grassland.
Alan K Knapp, John M Briggs, John M Blair, Clarence L Turner   +3 more
openaire   +1 more source

Aboveground Net Primary Productivity and Nutrient Content of Fertilized Plantation Sweetgum

Soil Science Society of America Journal, 1995
Abstract Sweetgum ( Liquidambar styraciflua L.) is a commercially desirable species that can be successfully established in plantations, and information is needed concerning its genotypic variation and response to fertilization.
L. E. Nelson, M. G. Shelton, G. L. Switzer   +2 more
openaire   +1 more source

Assessing Aboveground Net Primary Production of Vascular Plants in Marshes

Estuaries, 1996
Information of aboveground net primary production (ANPP) in marshes has been limited by the lack of accurate methods for assessment. Most popular methods have weaknesses that cause either underestimates or overesti- mates of ANPP values. The nondestructive growth kinetics monitoring method used by Williams and Murdoch (W-M) has provided, perhaps, a ...
openaire   +1 more source

Variation in aboveground net primary production of diverse European Pinus sylvestris populations

Trees, 2000
On range-wide and regional scales, climate and site factors exert control over tree growth, masking the genetic basis of biomass accumulation and allocation. To determine intrinsic population differences in productivity, aboveground net primary production (ANPP) was measured in 16-year-old Scots pine from 19 geographically distinct populations grown in
J. Oleksyn, P.B. Reich, L. Rachwal, M.G. Tjoelker, P. Karolewski   +4 more
openaire   +1 more source

Spatial variability of aboveground net primary production for a forested landscape in northern Wisconsin

Canadian Journal of Forest Research, 2003
Quantifying forest net primary production (NPP) is critical to understanding the global carbon cycle because forests are responsible for a large portion of the total terrestrial NPP. The objectives of this study were to measure above ground NPP (NPPA) for a land surface in northern Wisconsin, examine the spatial patterns of NPPA and its components ...
S N Burrows, S T Gower, J M Norman, G Diak, D S Mackay, D E Ahl, M K Clayton   +6 more
openaire   +1 more source

Gross and aboveground net primary production at Canadian forest carbon flux sites

Agricultural and Forest Meteorology, 2013
Abstract Simultaneous biometric measurements of aboveground net primary production (ANPP) and eddy-covariance measurements of gross primary production (GPP) were made at 18 forest stands with 80 site-years of data across Canada – to assess the fraction of photosynthesis that is used to produce plant tissues and the consistency of carbon allocation ...
T.S. Zha, A.G. Barr, P.-Y. Bernier, M.B. Lavigne, J.A. Trofymow, B.D. Amiro, M.A. Arain, J.S. Bhatti, T.A. Black, H.A. Margolis, J.H. McCaughey, Z.S. Xing, K.C.J. Van Rees, C. Coursolle   +13 more
openaire   +1 more source