成都龙泉山地区果木经济区土壤的地球化学特征

肥沃的湖沼沉积物，造就了龙泉山的水果之乡。对双流太平果木区的剖析表明，有机质高，特别是速效钾高有利果木的发育，不同的果木适应不同的土壤条件。金堂脐橙区K2O、P、Mn、Se高，发育在姜石黄壤土和黄红紫泥土的界面上，形成元素的互补是造就“中国脐橙第一乡”的主要原因。蒲江趴梨产区高N、K2O、Se，茶业产区高Cu、B、Mo，TFe2O3、Se较高，土壤偏酸性。

Geochemical Characteristics of Fruit Tree Soil in the Longquan Mountains Area,Chengdu

Fertile lemnetic sediments bring up the land of fruits in the Longquan Monutains area,Chengdu.Analyses of soil from the Taiping Orchard in shuangliu indicate that the soil is rich in organic material;especially,rapid available potash,while soil from orange orchards in Jintang is developed from yellow loam and yellowish and reddish purple mud rich in K 2O,P,Mn,Se which create the first land of orange in China.In addition,soil from pear orchards in Pujiang is rich in N,K 2O,Se,while soil from tea hill areas is rich in Cu,B,TFe 2O 2 and Se.