搜索结果: 1-9 共查到“农学 N and P pools”相关记录9条 . 查询时间(0.061 秒)
Influence of Soil Properties on P Pools and Its Effect on Forest Productivity in Mediterranean Calcareous Soils
calcareous soils Mediterranean ecosystem phosphorus availability phosphorus fractionation semiarid environment sequential extraction
2023/12/11
Although soil phosphorus is essential for vegetation growth it is not always found in labile forms, hampering its absorption by plants, and is limited in forest ecosystems. This study explores soil P ...
Soil Organic Carbon Pools and Associated Soil Chemical Properties under Two Pine Species (Pinus sylvestris L. and Pinus nigra Arn.) Introduced on Reclaimed Sandy Soils
afforestation mine sites alien species SOM DOC extractable carbon nitrogen
2023/12/6
The roles of different tree species and their impacts are key in assessing the dynamics of soil restoration in afforested post-mining sites. The objective of this study was to compare the effect of Sc...
Elephants reverse the cattle-caused depletion of soil carbon and nutrient pools（图）
Elephant cattle-cause soil carbon nutrient pools
2020/4/10
Wild herbivore populations are declining in many African savannas, a result of replacement by livestock (mainly cattle) and the loss of large plant-eaters, or megaherbivores, such as elephants.Althoug...
Biomass and element pools of selected spruce trees in the catchments of Plešné and Čertovo Lakes in the Šumava Mts.
Norway spruce biomass element pools
2015/3/3
This paper presents detailed data on the biomass and element pools of six sample trees in the catchments
of Plešné and Čertovo Lakes. Diameters and heights of the sample trees ranged from ...
Assessment of microbial pools by an innovative microbiological technique during the co-composting of olive mill by-products
Composting Olive Mill Wastewater Olive Pomace Pruning Residues
2013/3/4
Different mixtures of olive pomace (OP), olive mill wastewater (OMWW) and olive pruning residues (OPR) were aerobically co-composted under natural conditions. Compost temperature showed a sharp increa...
Seed Plant Species Pools：the Development of Species Richness in Eastern Asia and North America
North America Eastern Asia Species Richness Seed Plant
2009/9/23
Great species richness in eastern Asia is the effect of a long history with low extinction and speciati0n
rates,while great richness in northwestern North Am erica is due to recent rapid speciati0n
...
Distribution of carbohydrate pools within water-stable aggregates of an Ultisol in Southern Nigeria
carbohydrate concentrations water-stable aggregates Nigerian Ultiso
2008/11/26
R-CHOc, irrespective of the type of amendment. The distribution of the carbohydrate fractions within the water-stable aggregates generally decreased with increasing time of sampling. At the 3rd and 6...
IMPACTS OF GRAZING INTENSITY ON NITROGEN POOLS AND NITROGEN CYCLE IN AN ALPINE MEADOW ON THE EASTERN TIBETAN PLATEAU
biomass grassland N stocks soil N transformation Tibet Plateau
2010/3/25
Grazers may influence nitrogen (N) pools and alter N inputs and outputs (losses) to the
ecosystem in a number of ways. In this study, we evaluated N pools within the plant-soil system (0-30cm) and so...
PRESENCE OF VIRULENT STRAINS OF AMPHIZOIC AMOEBAE IN SWIMMING POOLS OF THE CITY OF SZCZECIN
swimming pools amoeba virulent Acanthamoeba strains
2010/12/24
The studies included 10 public indoor swimming pools and 3 public open-air swimming pools located in the city of Szczecin. In 2003, water samples were collected for detection of virulent amphizoic amo...