Results 31 to 40 of about 35,780 (302)
Applied and Environmental Soil Science, 2020 Understanding topography effects and assessing the soil properties in different land use is an essential first step for sustainable soil management. Hence, land use type and altitudinal gradient on selected soil parameters were studied in Ayiba watershed,
Weldemariam Seifu +2 more
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Photosynthetica, 2020 The performance of PSII photochemistry in five Central European provenances of silver fir differing in the altitude of origin (250-1,300 m a.s.l.) were studied using the chlorophyll a fluorescence parameters derived from the JIP-test.
A. KONÔPKOVÁ +9 more
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Tree growth and its climate signal along latitudinal and altitudinal gradients: comparison of tree rings between Finland and the Tibetan Plateau [PDF]
Biogeosciences, 2017 Latitudinal and altitudinal gradients can be utilized to forecast the impact of climate change on forests. To improve the understanding of how these gradients impact forest dynamics, we tested two hypotheses: (1) the change of the tree growth–climate ...
L. Lyu +5 more
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Altitudinal Gradient of Evapotranspiration in Tropical Highlands
, 2022 Tropical highlands supply water for large cities in the Andes. Based on meteorological records from three weather stations in the paramo Chingaza, Colombia evapotranspiration (ET) is estimated based on the Penman-Monteith (P-M) approach to compare the altitudinal variation and assess the radiation and aerodynamic effects on the water losses. This study
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Diversity of springtails (Hexapoda) according to a altitudinal gradient [PDF]
Pesquisa Agropecuária Brasileira, 2009 The objective of this work was to elevate gradient effect on diversity of Collembola, in a temperate forest on the northeast slope of Iztaccíhuatl Volcano, Mexico. Four expeditions were organized from November 2003 to August 2004, at four altitudes (2,753, 3,015, 3,250 and 3,687 m a.s.l.). In each site, air temperature, CO2 concentration, humidity, and
García-Gómez, Arturo +2 more
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Botanical Sciences, 2018 Background: The Sierra La Laguna Biosphere Reserve is located which is considered an “island of vegetation” within an arid environment. Considering that this protected natural area has an altitudinal gradient that ranges from 500 to 2,100 meters above ...
Jesús Manuel Rascón-Ayala +5 more
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Structural and functional characteristics of soil microbial community in a Pinus massoniana forest at different elevations [PDF]
PeerJ, 2022 Shifts in forest soil microbial communities over altitudinal gradients have long been attracting scientific interest. The distribution patterns of different soil microbial communities along altitudinal gradients in subtropical mountain forest ecosystems ...
Jian Zhang, Ming Xu, Xiao Zou, Jin Chen
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Interpreting the seasonal cycles of atmospheric oxygen and carbon dioxide concentrations at American Samoa Observatory [PDF]
, 2003 We present seven years of atmospheric O2/N2 ratio and CO2 concentration data measured from flask samples collected at American Samoa. These data are unusual, exhibiting higher short-term variability, and seasonal cycles not in phase with other sampling ...
Andrew C. Manning +12 more
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Global Ecology and Conservation, 2022 The multiple functions and services provided by ecosystems that linked human-being are under threat with the global environment changes. Large-scale research of ecosystem multifunctionality (EMF), which include AN, AP, AK, CEC, SOM, SMC, SMN, AGB BGB and
Haoyu Zhang, Chongchong Ye, Shuai Wang
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Journal of Forest Science, 2020 This study was done to quantify the amount of soil organic matter and to evaluate physicochemical properties and vegetation cover changes along the altitudinal gradient. Nine altitudinal transects were selected from 100 m a.s.l. to 1 700 m a.s.l.
Hassan Pourbabaei +3 more
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