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Soil organic carbon (SOC) represents a significant fraction of the total amount of carbon involved in the global carbon cycle. Hyperspectral remote sensing has a valuable role in the monitoring of the dynamics of SOC. This study focused upon improving the accuracy of SOC quantification by applying wavelet analysis to reflectance spectra. Spectral measurements for all soil samples (three sub-regions...
Surveys has been developed for the quality of the soil environment in the vegetable plot, choosing some vegetable bases in Chengdu's suburb- Pengzhou as the study area. In order to analyze the changing trend of soil environmental quality in the suburban vegetable base, comparisons from the soil pH, soil nutrient composition, soil heavy metals to pesticide residues have been made with the previous...
Sewage irrigation is one of the methods to solve water shortage in north China Plain. The wastewater usually come from urban domestic and industrial sewage, inappropriate sewage irrigation can pollute soil and crops by heavy metal depositing. Thereby impact on health of humanbeing indirectly. This paper try to monitor the impact of heavy metal on wheat leaves by hyperspectral remote sensing. Results...
At present the environment in Yellow River delta region is particularly badly eroded. In view of the situation, use of vegetation for environmental protection is most effective. In order to select suitable tree species, some physiological parameters such as proline content, ratio of bound water and free water, relative conductivity of leaves were applied to this experiment to probe the capability...
The quarry and damaged mountain in peri-urban have an important influence to ecological environment. They have had a series of serious environmental-geological problems to the socio-economic development and urban modernization process, such as increased environmental pollution and soil erosion, destruction of landscape aesthetic, induced geological disasters, and had an impact on groundwater seepage...
Soil contamination with Cd is of concern in many countries throughout the world. Extraction of metals from contaminated soils using high-biomass, metal accumulating Populus has been proposed as a low cost, gentle remediation strategy. In a pot experiment, the phytoaccumulation potential for Cd of 3 poplar species (Populus cathayana, P. prezwaskii, P. yunnanensis) were evaluated on three moderately...
Formed by the stacking of solid waste from the coal industry emissions, the coal gangue dump brought about a series of ecological and environmental problems, such as the decrease of the quality of the air, surface water, groundwater and soil, ecosystem degradation, the losing of species diversity, the damage of landscape and the yield reduction of crops and so on. Therefore, the purpose of governance...
Riparian wetland is the major transition zone of matter, energy, and information transfer between aquatic and terrestrial ecosystems and has important functions of water purification and non-point pollution control. Using the field experiment method and isotope tracing technique, the agricultural non-point nitrogen pollution control function of Phragmites communis Trin in riparian wetlands was studied...
With the Sanlidong gangue wastelands as the subject, the basic status of vegetation restoration was investigated through sample plot survey. Gangue efflorescence and vegetation were conducted based on sampling so as to research and analyze the contents of nutrients and toxic elements between gangue efflorescence and vegetation. The reference vegetation was eastablished and the climax communities could...
The effect of growth of Cynodondactylon from two sources on the distribution of different forms of copper in soil was studied by pot experiments. The results showed that, when soil was spiked with Cu, the vast majority of Cu content was in the residual form, and Cu content in the exchangeable form was low. As the addition of Cu increased, the Cu content increased in all different forms. However,...
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