围栏对新疆山区草地土壤碳氮的影响  

Influences of Fencing on Soil Carbon and Nitrogen of Typical Mountainous Lawn in Xinjiang

作　　者：董自红[1] 蒋平安[1] 程路明[1] 贾宏涛[1] 李慧[1] 

机构地区：[1]新疆农业大学资源环境学院,乌鲁木齐830052

出　　处：《新疆农业大学学报》2006年第1期31-35,共5页Journal of Xinjiang Agricultural University

基　　金：全球环境基金(GEF)资助项目

摘　　要：通过对新疆典型山区草地———高寒草甸、亚高山草甸和山地草原的野外实地监测,在对草原围栏内外植物群落生物量、土壤温度、土壤水分和土壤碳、氮特征研究结果比较基础上,讨论了围栏对天然草地土壤有机碳、氮的影响:有利于土壤有机碳、氮的恢复,但由于土壤碳、氮的积累相对较慢,因此短时间内不明显。The typical mountainous lawn in Xinjiang such as down-land, subalpine meadow and alpine meadow were monitored on the spot to compare plant communities＂ aboveground biomass, soil temperaT ture, soil moisture outside and inside fences, then to discuss the impact of fencing on the soil organic car bon and the nitrogen of the natural grassland, which was beneficial to restoring the soil organic carbon and the nitrogen of further development, but accumulation of the soil organic carbon and the nitrogen was relatively slow, the accumulation of the soil organic carbon and the nitrogen was not obvious in a short time.

关 键 词：土壤碳氮 围栏 草地 新疆 

分 类 号：S154[农业科学—土壤学]