雅安和平小流域不同土地利用类型土壤养分的分布特征  

Distribution Characteristics of Soil Nutrients of Different Land use Types in Small Heping Watershed of Ya'an Region

作　　者：周云珂[1] 

机构地区：[1]四川省林业调查规划院,四川成都610081

出　　处：《四川林业科技》2014年第5期88-91,28,共5页Journal of Sichuan Forestry Science and Technology

摘　　要：为了探索不同土地利用类型土壤养分的分布特征,本试验对枇杷林地、蔬菜地和荒草地3种土地类型土壤养分进行了研究。结果表明:(1)0~10 cm和10 cm^20 cm土层土壤有机质含量分别表现为:荒草地>枇杷林地>菜地,枇杷林地>菜地>荒草地,3种土地利用方式间的土壤有机质差异不大。(2)0~10 cm土层,土壤全氮、碱解氮含量菜地>荒地>林地,全磷、有效磷含量荒草地>菜地>枇杷林地,土壤全钾含量菜地>枇杷林地>荒草地,速效钾含量菜地>荒草地>枇杷林地。(3)10 cm^20 cm土层,土壤全氮含量菜地>枇杷林地>荒草地,而碱解氮、土壤全磷、有效磷含量均为枇杷林地>菜地>荒草地;土壤全钾含量菜地>枇杷林地>荒草地,速效钾含量荒草地>菜地>林地。土地利用类型对土壤养分的分布具有显著影响。To explore the soil nutrients distribution of different land use types, studies were made of the soil nutrients of Eriobotrya japonica woodland, vegetable field and grassland land in this paper. The resuits showed that the organic matter content in 0 - 10 cm soil was the highest in grassland and the next was in E. japonica woodland and vegetable field while that in 10 cm - 20 cm soil was the highest in E. japonica woodland and the next was in the vegetable fi and available N were the highest in the vegetable fie1 woodland, total P and available P were the highest in eld and the grassland. In 0 - 10 cm soil, total N d, the next was in the grassland and E. japonica the grassland, the next was in the vegetable field and E. japonica woodland, total K was the highest in vegetable field , the next was in the E. japonica woodland and grassland while available K was the highest in vegetable field, and the next was in the grassland and E. japonica woodland. As to total N content in 10 cm -20 cm soil, the order was the vegetable field 〉 the E. japonica woodland 〉 the grassland. As to the content of available N, total P and available P in the soil, the order was the E. japonica woodland 〉 the vegetable field 〉 the grassland. As to total K content in the soil, the order was the vegetable field 〉 the E. japonica woodland 〉 the grassland. As to available K content in the soft, the order was the grassland 〉 the vegetable field 〉 the E. japonica woodland. Therefore it indicated that the land use types had significant effect on the distribution of soil nutrients.

关 键 词：和平小流域 土地利用 林地 土壤养分 

分 类 号：S158[农业科学—土壤学]