金华江流域利用硅藻生物学特性监测水质研究

2012年7月对浙江省金华江流域18个监测断面进行了附着硅藻和水质调查，通过硅藻生态群落组成及SPI、BDI硅藻指数对水质进行了评价，并比较了硅藻指数评价与水质理化评价结果的异同性。本次调查共收集到硅藻75种（含变种和变型），隶属于2纲12科30属。硅藻生态类群组成显示各断面以喜中性、N自养、耐低污染和喜好很高氧饱和度硅藻为主。水质理化指标总体评价金华江各监测断面水质多为Ⅲ类及以上，仅有一个断面为V类，硅藻SPI和BDI指数评价各断面水质为中等及中等以上。二者评价结果总体上吻合，但同时存在一定差异。SPI与高锰酸盐指数和硝酸盐氮呈显著负相关，BDI与氨氮呈显著负相关。硅藻指数在金华江流域有一定的适用性，但其在国内其他流域的适用性、评价方法的指示性与稳定性有待进行更深入的研究     

Monitoring the quality of groundwater on the bank of Uyyakondan channel of river Cauvery at Tiruchirappalli, Tamil Nadu??India

The groundwater quality on the banks of Uyyakondan channel of Cauvery at Tiruchirappalli was studied. Two groundwater samples were taken near the bank of the channel on both sides and the other two samples were taken nearly 0.5 km away from the channel at ten stations. The study was carried out every year over a period of 3 years from December 2001-December 2003. The samples were subjected to physico-chemical analysis. The results showed that most of the physico-chemical parameters were in higher concentrations at most of the groundwater stations.     

People’s attitude towards willingness-to-pay for environmental protection in Pakistan

Environmental Science and Pollution Research - Recent environmental research has found that people with higher incomes and in more developed countries are more willing to pay (WTP) to protect their...     

Different sources of irrigation water affect heavy metal accumulation in soils and some properties of guava fruits

Environmental Science and Pollution Research - Guava is a highly nutritious fruit and widely grown in tropical and sub-tropical regions of the world. Guava orchards are frequently irrigated with...     

Assessment of potential human health risk due to heavy metal contamination in edible finfish and shellfish collected around Ennore coast,India

Environmental Science and Pollution Research - This study aims to estimate anthropogenic sources of pollutants such as heavy metals that pollute or poison the commercial marine finfish and...     

Rescue effects of Se-enriched rice on physiological and biochemical characteristics in cadmium poisoning mice

Environmental Science and Pollution Research - Cadmium (Cd) is an element injurious for human health and is possibly toxic to organisms at minor concentrations. While some of other trace metallic...     

Deciphering the impact of novel coronavirus pandemic on agricultural sustainability,food security,and socio-economic sectors—a review

Environmental Science and Pollution Research - The Spanish flu, Asian flu, Hong Kong flu, HIV/AIDS, SARS, Ebola, and Swine flu, among others, have had a significant impact on agriculture,...     

A research on conventional and modern algorithms for maximum power extraction from wind energy conversion system: a review

Environmental Science and Pollution Research - In the last few decades, wind energy has become a significant source of the renewable energy system, and it is essential to use wind energy for...     

Toxic effect of some heavy metals on hematology and histopathology of major carp (Catla catla)

Environmental Science and Pollution Research - The current study was conducted to assess the hematological and histopathological changes in major carp (Catla catla) exposed to different...     

Social and economic considerations in conserving wetlands of indo-gangetic plains: A case study of Kabartal wetland,India

The Kabartal wetland situated in the upper Indo-Gangetic flood plains in northern India is significant because of its hydrological and ecological services, and the socio-economic and cultural values that it represents. Despite being designated as a wildlife sanctuary, this wetland is under threat from anthropogenic pressures. As in the case of most wetlands, the reason is incomplete information on its ecological services and functions, breakdown of traditional management structures and the lack of appropriate and recognized property rights. Our study assesses the economic linkages between the Kabartal wetland and the local people living around it, through socio-economic surveys and Contingent Valuation Method (CVM). The major objective of the study was to determine the importance of this wetland to the local people and to give an indication of the distribution of the benefits among various stakeholders. The people in the region are poor, have low literacy levels and high dependence on Kabartal and more than 50% want that the wetland should be drained and the land used for agriculture. However, they are willing to participate in collaborative management initiatives with the state. The willingness of people to accept compensation, as an alternative to access to Kabartal wetland, regressed on various socio-economic and attitudinal parameters, gave an estimated mean value of US $27,500 per household over a period of 60 years. This value is a pointer of the total value of access to Kabartal wetland to the surrounding villagers and would be useful when decisions to compensate people for lost access to Kabartal are made.