在城市经济半径内,由于土壤产品专业化、商品化带来的集 …(国外英文资料).docVIP

在城市经济半径内,由于土壤产品专业化、商品化带来的集 …(国外英文资料) I carefully collated documents, documents from the network I only collect and sort out In case of error Please check it yourself! Study on soil physical and chemical properties of urban green space in Chengdu Chen Xue, 1, Lang Chunyan, 2 (second geological team of Henan Bureau of Geology and mineral resources, 1; Henan Jiaozuo 454000; 2 、 School of materials science, chemistry and chemical engineering, Chengdu University of Technology, Sichuan, Chengdu 610059, China Abstract: the physical and chemical properties of greenbelt soil in Chengdu city were studied and compared with those in suburbs The pH value of greenbelt soil in this city is obviously higher than that in Suburb The organic matter content and total sulfur content were lower than those in the suburbs Key words: urban soil; green space; soil physical and chemical properties CLC number: S153 Urban soil is a long-term disturbance and influence through human activities And the soil developed under the special environment of the city It is compared with natural soil and agricultural soil The urban soil has a special section structure The urban green space is part of the urban soil Specifically refers to the city in order to green based parks, schools, green street, road green space, residential areas, green spaces It has important ecological and socio-economic functions, [1] et al With the increase of city construction and city to accelerate the pace of environmental pressure, the importance of city green environmental regulation and environmental improvement has been strengthened; based on this, the domestic and foreign research on the city green space as the research object also has the progress of [2-7] Nowadays, the soil resources are becoming more and more scarce and the natural space is very narrow The environment is becoming worse and worse It is of great practical significance to strengthen the study on the formation characteristics, development, utilization and pr