莱西中华寿桃产区岩土地球化学特征及土壤营养评价  

THE ROCK-SOIL GEOCHEMICAL CHARACTERISTICS AND THE EVALUATION ON THE NUTRIENT ELEMENTS IN SOILS FOR THE PRODUCING AREA OF ‘ZHONGHUASHOUTAO’ PEACH IN LAIXI,SHANGDONG

作　　者：任宏波[1] 万中杰 许静 朱志刚[3] 刘昌岭[3] 刘敬莲 

机构地区：[1]中国海洋大学,山东青岛266003 [2]山东省第四地质矿产勘查院,山东潍坊261021 [3]青岛海洋地质研究所,山东青岛266071 [4]山东省青岛市莱西县南墅林果站,山东莱西266613

出　　处：《物探与化探》2008年第2期186-191,共6页Geophysical and Geochemical Exploration

基　　金：青岛市地质环境质量评价和生态与经济可持续发展项目(121201051140)

摘　　要：对青岛莱西中华寿桃产地的岩土地球化学特征进行了系统研究,结果表明,该地区花岗岩的K2O、Na2O,基性岩的B,透辉岩的MgO、CaO,变粒岩中的Mn、N、P含量较高,与其对应的土壤具有相似的地球化学差异。桃树生长所需营养元素在不同岩性的土壤中含量相差较大,透辉岩、基性岩中的Ca、Mg、Mn、N、P,变粒岩中的N、P、Fe、B含量丰富,而面积较广的花岗岩土壤中营养元素较为贫乏。桃园土壤有效态N、P等主要营养元素含量较高,B、Mn、Mo、Fe等微量及有机质含量偏低。建议在保证N、P、K施用充足的条件下,增加B、Mn、Mo、Fe、Ca、Mg等微肥及有机肥的施用。Investigations on the rock-soil geochemical system for the producing area of Zhonghuashoutao＇peach have been performed in Laixi county. The results show obvious differences of geochemical characteristics in this rock-soil system. Some elements are rich in specific rocks, （e. g. K2O and Na2O in granite, B in base rock, MgO and CaO in canaanite and Mn, N and P in leptite）. As a result, the related soils have the similar geochemical characteristics, whereas the tendency of variations for these elements is not significant . The nutrient elements which are needed for peach trees are found quite different in different soils. For instance , canaanite and base rocks are abundant in Ca, Mg, Mn, N and P, while leptite is sufficent in N, P, Fe and B. However, the nutrient elements are found insufficently in the large grantite soil areas. The effective elements of N and P have high levels in the soils of peach gardens, while B Mn, Mo, Fe and organic matters are relatively low in concentrations. It is suggested that beside the enough N, P and K, some trace elements such as B, Mn, Mo, Fe, Ca, Mg as well as organic fertiltzers must be used to improve the soil quality.

关 键 词：岩石与土壤 地球化学 莱西中华寿桃 

分 类 号：P632[天文地球—地质矿产勘探]