西北地区保护性耕作技术与沙尘暴防治  

Protective tillage and sand-dust storm prevention in northwest China

作　　者：张凤云[1] 张恩和[1] 景锐[1] 

机构地区：[1]甘肃农业大学农学院,甘肃兰州730070

出　　处：《甘肃农业大学学报》2005年第2期245-249,共5页Journal of Gansu Agricultural University

基　　金：国家863计划"北方内陆河灌区(甘肃张掖)节水农业综合技术体系集成与示范"(2002AAZZ4191)。

摘　　要：通过对中国西北地区沙尘暴时空分布特征及成因的分析,阐述了干旱、半干旱地区少免耕技术的防沙尘原理和其产生的历史背景,指出作为保护性耕作技术一项重要内容的高留茬收割防沙尘免耕技术,在未来生态环境恢复和建设中的作用和地位,旨在为少免耕的进一步发展起到积极的作用。Through the analysis of the distribution and causes of sand-dust storm in the northwest region of China, the prevention principle of less and no-tillage system in semiarid and arid region from sand-dust storm and its formation background were reviewed. As one of the important aspect, protective tillage was pointed in the function and status of higher stubble much of the future ecological environment restoration and construction, which meant to improve the development of less and no-tillage.

关 键 词：西北地区 沙尘暴 保护性耕作 高留茬 

分 类 号：S344[农业科学—作物栽培与耕作技术] S181[农业科学—农艺学]