supported by the National Key Sciences and Technology Program for Water Solution (No.2009ZX07102-004);the National Natural Science Foundation of China (No. 30560034);the Research Foundation for Academic Leaders in Yunnan Province (China)(No. 2006PY01-34);the Project sponsored by theScientific Research Foundation for Returned Overseas Chinese Scholars,State Education Ministry
Field investigations were conducted to measure subsoil trace element content and factors influencing content in an intensive periurban market garden in Chenggong County, Yunnan Province, South-West China. The area was...