Results 11 to 20 of about 436,372 (316)

15N isotope tracing of nitrogen runoff loss on red soil sloping uplands under simulated rainfall conditions

open access: yesPlant, Soil and Environment, 2016
Stable isotope 15N tracer technique was used in combination with artificial rainfall simulation to study the influence of interflow and surface-flow on nitrogen (N) migration loss of soil-plant systems on typical red soil sloping uplands. This study also
H.J. Zheng   +4 more
doaj   +1 more source

Photosynthesis and nutrient-use efficiency in response to N and P addition in three dominant grassland species on the semiarid Loess Plateau

open access: yesPhotosynthetica, 2020
Understanding the ecophysiological and nutrient-use strategies of dominant species is important for clarifying plant growth and an ecological process in their community under unbalanced N and P inputs. This study investigated effects of N and P addition [
Z.F. CHEN   +6 more
doaj   +1 more source

An improved daily standardized precipitation index dataset for mainland China from 1961 to 2018

open access: yesScientific Data, 2022
Measurement(s) Standardized Precipitation Index Technology Type(s) data transformation Factor Type(s) observation period • temporal resolution • spatial resolution Sample Characteristic - Environment drought • climate change • climate extremes Sample ...
Qianfeng Wang   +7 more
doaj   +1 more source

Process identification of soil erosion in steep mountain regions [PDF]

open access: yes, 2010
Mountainous soil erosion processes were investigated in the Urseren Valley (Central Switzerland) by means of measurements and simulations. The quantification of soil erosion was performed on hill slope scale (2 center dot 20 m) for three different land ...
Baenninger, D.   +14 more
core   +1 more source

Erosion-corrosion resistance of engineering materials in various test conditions [PDF]

open access: yes, 2009
Erosion–corrosion is a complex phenomenon which involves the interaction between the mechanical processes of solid particle erosion and the electrochemical processes of corrosion.
Rajahram, S.S   +2 more
core   +1 more source

Characteristics and factors influencing soil organic carbon composition by vegetation type in spoil heaps

open access: yesFrontiers in Plant Science, 2023
IntroductionThe variation of organic carbon content in spoil heaps is closely related to improving soil structure, maintaining soil fertility, and regulating soil carbon cycling balance.
Yiwen Yao   +11 more
doaj   +1 more source

Dental Erosion [PDF]

open access: yesPolish Journal of Public Health, 2014
Dental erosion is described as an irreversible loss of dental hard tissue resulting from exposure to non-bacterial acids or chelating substances. It may be caused by exogenous or endogenous factors. In the former case, food, drink, as well as the environment might be sources of acids; in the latter, acids flowing into the oral cavity from the stomach ...
Ewa Kuchta, Jolanta Szymańska
openaire   +2 more sources

Interrelation of climatic factors of soil formation with the formation of chemical and physical-chemical properties of soil cover in agricultural landscapes of the Central Chernozem Region of Russia

open access: yesЮг России: экология, развитие, 2021
Aim. To assess the interrelations of chemical and physical-chemical parameters of soil cover properties with climatic factors of soil formation in agricultural landscapes of the Central Chernozem Region (CCR) of Russia.Materials and Methods. The research
O. G. Chuyan, L. N. Karaulova
doaj   +1 more source

Characteristics and development of steepland gullies in the dry valleys of Southwest China [PDF]

open access: yesPeerJ
In semi-arid and arid areas, gully erosion is one of the most destructive forms of erosion and causes serious land degradation and resource destruction.
Tingting Cui   +8 more
doaj   +2 more sources

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