搜索结果: 1-13 共查到“畜牧学 carbon”相关记录13条 . 查询时间(0.093 秒)
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...
Researchers Find Mushrooms May Hold Clues to Effect of Carbon Dioxide on Lawns
Researchers Mushrooms Hold Clues Carbon Dioxide Lawns
2017/4/27
Since the Industrial Revolution, the amount of carbon dioxide in the atmosphere has rapidly increased. Researchers at the University of New Hampshire set out to determine how rising carbon dioxide con...
Nocturnal Light Pulses Lower Carbon Dioxide Production Rate without Affecting Feed Intake in Geese
Feed Intake Goose Intermittent Lighting Metabolic Rate Photoperiod
2016/5/19
This study was conducted to investigate the effect of nocturnal light pulses (NLPs) on the feed intake and metabolic rate in geese. Fourteen adult Chinese geese were penned individually, and randomly ...
Effect of Glutamine, Glutamic Acid and Nucleotides on the Turnover of Carbon (δ13C) in Organs of Weaned Piglets
Liver Pancreas Pigs Stable Isotopes
2016/11/10
Morphological and physiological alterations occur in the digestive system of weanling piglets, compromising the performance in subsequent phases. This experiment aimed at verifying the influence of gl...
Effect of the age and season of fattening period on carbon dioxide emissions from broiler housing
carbon dioxide broiler chickens heating natural gas ventilation rate
2015/6/8
The quantification of emissions of greenhouse gases from human activities is of prime importance for determining the importance of their effect on the environment. The aim of this study was to test a ...
Variation in carbon isotope discrimination in Cleistogenes squarrosa (Trin.) Keng: patterns and drivers at tiller, local, catchment, and regional scales
C4 species 13C discrimination grazing Inner Mongolian steppe leaf nitrogen content precipitation
2015/2/4
Understanding the patterns and drivers of carbon isotope discrimination in C4 species is critical for predicting the effects of global change on C3/C4 ratio of plant community and consequently on ecos...
Large regional-scale variation in C3/C4 distribution pattern of Inner Mongolia steppe is revealed by grazer wool carbon isotope composition
Large regional-scale variation C3/C4 distribution pattern Inner Mongolia steppe grazer wool carbon isotope composition
2015/2/4
This work explored the spatial variation of C3/C4 distribution in the Inner Mongolia, P. R. China, steppe by geostatistical analysis of carbon isotope data of vegetation and sheep wool. Standing commu...
Carbon isotope discrimination of C3 vegetation in Central Asian grassland as related to long-term and short-term precipitation patterns
Carbon isotope discrimination C3 vegetation Central Asian grassland short-term precipitation patterns
2015/2/4
The relationship between carbon isotope discrimination (13 1) of C3 vegetation and long-term (30 years) and short-term (growing period) precipitation was investigated. Different species of Stipa, a do...
Variations in life-form composition and foliar carbon isotope discrimination among eight plant communities under different soil moisture conditions in the Xilin River Basin, Inner Mongolia, China
Grassland Life-forms Soil moisture gradient Stable isotope Water use efficiency
2015/2/4
Water is one of the key limiting factors for the survival and growth of plant species in arid and semi-arid steppe regions. Different plant functional groups (PFGs) based on life-forms differ in their...
Changes in carbon and nitrogen of Chernozem soil along a cultivation chronosequence in a semi-arid grassland
Changes in carbon nitrogen of Chernozem soil cultivation chronosequence semi-arid grassland
2015/2/4
Changes in the carbon (C) stock of grassland soil in response to land use change will increase atmospheric CO2, and consequently affect the climate. In this study we investigated the effects of land u...
Ammonia and Carbon Dioxide Concentrations in a Layer House
Ammonia Carbon Dioxide Concentration Diurnal Pattern Laying Hens Houses
2016/5/17
Higher concentrations of ammonia (NH3) and carbon dioxide (CO2) in animal barns can negatively affect production and health of animals and workers. This paper focuses on measurements of summer concent...
Contribution of Urine and Dung Patches from Grazing Sheep to Methane and Carbon Dioxide Fluxes in an Inner Mongolian Desert Grassland
Urine and Dung Patches CO2 and CH4 Fluxes Greenhouse Effect Inner Mongolia Desert Grassland
2016/5/9
The effects of sheep urine and dung patches on methane (CH4) and carbon dioxide (CO2) fluxes were investigated during the summer-autumn in 2010, to evaluate their contribution to climate change in a d...
GRASS SPECIES FROM C-4 CARBON FIXATION GROUP: POLISH EXPERIMENT WITH A NOVEL ENERGY AND FORAGE PURPOSES CROP
Andropogon gerardi chemical composition Miscanthus sacchariflorus
2010/12/8
Experiment was conducted during four years 2003-2006. Materials used were three genus grass species of C-4 photosynthesis: Andropogon gerardi Vitman, Panicum virgatum L. and Miscanthus sacchariflorus ...