土地利用方式对土壤基本性质及肥力的影响

Effects of Different Land Use Ways on Soil Basic Properties and Fertility

[目的]研究不同土地利用方式下土壤基本性质及肥力的差异。[方法]以山西省吕梁市离石区王家沟为试验基地,研究侧柏和碱草混交、欧李、柠条、苜蓿、油松5种土地利用类型对土壤基本性质、有机质含量、有效磷含量及碱解氮含量的影响。[结果]不同土地利用方式土壤基本性质不同;有机质含量由高到低依次为侧柏和碱草混交、柠条、欧李、油松、苜蓿用地;有效磷含量由高到低依次为侧柏和碱草混交、油松、柠条、欧李、苜蓿用地;碱解氮含量由高到低依次为侧柏和碱草混交、苜蓿、欧李、柠条、油松用地。[结论]侧柏和碱草混交最有利于改良土壤、保土保肥。

[ Objective ] To study the difference of soil basic properties and fertility under different land use ways. [ Method ] Taking Wangjiagou in the Lishi District, Luliang City, Shanxi Province for experimental base, effects of five types of land use （Chinese arborvitae and nutans , caragana, Chinese dwarf cherry, Chinese pine, alfalfa ）on soil basic properties, organic matter content, effective phosphorus content and alkaline hydrolysis nitrogen content were studied. [ Result ] The soil basic properties were different under different land use ways. Order of organic matter content was Chinese arborvitae and nutans ,caragana,Chinese dwarf cherry,Chinese pine, alfalfa; Order of effective phosphorus content was Chinese arborvitae and nutans, alfalfa, Chinese dwarf cherry,caragana, Chinese pine;Order of alkaline hydrolysis nitrogen content was Chinese arborvitae and nutans, alfalfa, Chinese dwarf cherry, caragana, Chinese pine. [ Conclusion ] Chinese arborvitae and nutans was beneficial for soil improvement and fiheration of water quality.