Pb pollution 第1页

EFFECTS OF Pb POLLUTION ON PHOTOSYNTHETIC CHARACTERISTICS, QUALITY, AND YIELD OF TOBACCO LEAVES Tolerance of Three Energy Willow‘s Clones to Heavy Metal Pb Cu and Pb contents in Dichondra repens leaf and their effects on its physiological indexes Relationship between soil Pb pollution and Pb contents in vegetables and pollution threshold of soil Pb Impacts of Cd and Pb pollution on soil microbes in tobacco root zone and on tobacco leaf quality Pb concentration and distribution in main tree species on both sides of highway in suburbs of Nanjing City A Study on Changes of Vegeta tion and Tolerance of Alive Plantto Pb Pollution in the Area around a Lead Smeltery