昆明市野鸭湖景区的土壤特性研究

通过对昆明市野鸭湖景区不同的植被类型及土壤类型设样调查。其调查研究的结果表明:该景区的主要土壤类型有山地红壤、山地黄红壤、黄壤、黄棕壤、黄色砂壤等5种类型,红壤、黄红壤、黄壤基本各占1/3,土壤质地大多数是粘壤土。主要成土岩石有石灰岩、砂岩、变质岩(板岩、片岩)、红色砂岩、紫色砂岩等,主要成土母质有残积母质、坡积母质等类型;为酸性土壤,土壤的有机质含量较低,缺乏有效氮,严重缺乏有效磷,土壤交换性能较差,肥力偏低,且土壤的侵蚀现象明显。据此,应防止景区植被的进一步破坏。

Study of Soil Characteristics of Yeyahu Resort in Kunming City

The soil characteristics of Yeyahu resort in Kunming city was studied by setting sample plots under different vegetation types and different soil types.The results showed that there were five types of soil namely mountain red soil,mountain red-yellow soil,yellow soil,yellow brown soil and yellow sandy soil.Among which,three major types were red soil,red-yellow soil and yellow soil,and most soil was clay loam.The dominant parent rocks were limestone,sandstone,slate,schist,red sandy stone and purple sandstone.The major parent materials were residual parent material and clinosol parent material.The soil of this resort was acidic,the content of organic matter was low,and short of available nitrogen and available phosphorus.The exchange capacity was not promising,the fertility was low,and the phenomenon of soil erosion was serious.Preventing the vegetation from destruction was very critical for this area.