Results 21 to 30 of about 3,124 (194)

Sensitivity of productivity to precipitation amount and pattern varies by topographic position in a semiarid grassland

Ecosphere, 2021
Aboveground net primary productivity (ANPP) in grasslands is an important integrator of terrestrial ecosystem function, a key driver of global biogeochemical cycles, and a critical source of food for wild and domesticated herbivores.
David L. Hoover, William K. Lauenroth, Daniel G. Milchunas, Lauren M. Porensky, David J. Augustine, Justin D. Derner   +5 more
doaj   +1 more source

The Change in Environmental Variables Linked to Climate Change Has a Stronger Effect on Aboveground Net Primary Productivity Than Does Phenological Change in Alpine Grasslands

Frontiers in Plant Science, 2022
More and more studies have focused on responses of ecosystem carbon cycling to climate change and phenological change, and aboveground net primary productivity (ANPP) is a primary component of global carbon cycling.
Jiangwei Wang, Jiangwei Wang, Meng Li, Chengqun Yu, Gang Fu   +4 more
doaj   +1 more source

Vegetation Productivity Dynamics in Response to Climate Change and Human Activities under Different Topography and Land Cover in Northeast China

Remote Sensing, 2021
Net primary productivity (NPP) is the total amount of organic matter fixed by plants from the atmosphere through photosynthesis and is susceptible to the influences of climate change and human activities.
Hui Li, Hongyan Zhang, Qixin Li, Jianjun Zhao, Xiaoyi Guo, Hong Ying, Guorong Deng, Wu Rihan, Shuling Wang   +8 more
doaj   +1 more source

Annual Net Primary Productivity of Different Functional Groups as Affected by Different Intensities of Rainfall Reduction in the Semiarid Grasslands of the Gauteng Province in South Africa

Agronomy, 2021
Rainfall variability is expected to change the soil water regime thereby impacting negatively on rangeland species composition, productivity and ecosystem services.
Thabo Patrick Magandana, Abubeker Hassen, Eyob H. Tesfamariam   +2 more
doaj   +1 more source

Post-harvest establishment influences ANPP, soil C and DOC export in complex mountainous terrain [PDF]

The link between aboveground net primary productivity (ANPP) and resource gradients generated by complex terrain (solar radiation, nutrients, and moisture) has been established in the literature.
Peterson, Fox S.
core   +6 more sources

Assessing production of phytolith and phytolith occluded carbon in above-ground biomass of intensively cultivated rice ecosystems in India

Carbon Management, 2021
Carbon (C) occluded in phytoliths is stable and an important source of long-term C storage into the agroecosystems. As a silicon (Si) accumulator crop, rice produces a large amount of phytolith occluded carbon (PhytOC) and which plays a crucial role in ...
Mohsina Anjum, Prakash Basavarajappa Nagabovanalli   +1 more
doaj   +1 more source

Precipitation Conditions Constrain the Sensitivity of Aboveground Net Primary Productivity in Tibetan Plateau Grasslands to Climate Change

Remote Sensing, 2023
Continued climate warming and precipitation fluctuations are expected to further affect aboveground net primary productivity (ANPP) across alpine grasslands, with associated implications for ecosystem functions.
Na Zeng, Xiaoli Ren, Honglin He, Li Zhang, Zhongen Niu   +4 more
doaj   +1 more source

Effects of resource additions on species richness and ANPP in an alpine meadow community [PDF]

Journal of Plant Ecology, 2009
Aims Theories based on resourceadditions indicate that plant species richness is mainly determined by the number of limiting resources. However, the individual effects of various limiting resources on species richness and aboveground net primary productivity (ANPP) are less well understood.
Z. Ren, Q. Li, C. Chu, L. Zhao, J. Zhang, null Dexiecuo Ai, Y. Yang, G. Wang   +7 more
openaire   +1 more source

Quantifying the Influence of Climate Change and Anthropogenic Activities on the Net Primary Productivity of China’s Grasslands

Remote Sensing, 2022
As one of China’s most common vegetation types, grasslands comprise about 27.5% of its terrestrial area and 41% of its carbon storage. Since climate change (CC) and human activities (HA) have a great effect on grasslands, quantifying the contributions of
Xiafei Zhou, Binbin Peng, Ying Zhou, Fang Yu, Xue-Chao Wang   +4 more
doaj   +1 more source

Evaluation of Therapeutic Opioids in Skin-Derived Matrices (Sweat and Sebum) of Neonatal and Pediatric Patients and Their Role in Opioid Incorporation Into Hair. [PDF]

Drug Test Anal
Concentration ranges, dose–concentration relationships, and metabolite‐to‐parent drug ratios of therapeutic opioids were evaluated in hair and skin swab samples of 150 pediatric patients. Skin‐derived matrices such as sweat or sebum were shown to contribute to analyte incorporation into hair in a systematic manner.
Polke M, Zapf F, Scherer JT, Voegel CD, Restin T, Schmid MW, Kraemer T, Binz TM.   +7 more
europepmc   +2 more sources