宁夏旱地农业类型分区及评价研究

A STUDY ON CLASSIFICATION AND EVALUATION OF AGRICULTURAL TYPES IN ARID LAND IN NINGXIA

旱地农业是指干旱、半干旱区的雨养农业。类型分区是因地制宜布局农业生产,找出农业技术措施推广的合理区间和开发旱耕地生产潜力之重要条件。该文在指出宁夏干旱特点的基础上,提出旱地农业类型分类的原则与指标和分区方法,最后将宁夏划分为荒漠草原风沙干旱牧业区、半农半牧区、半干旱典型草原旱作农业区和半湿润森林草原农林区。同时也给每一区的资源条件以综合评价。

Dryland farming is such an agricultural type fed by annual rainfall in arid and semiarid area. Zonation of agro-types is important for us to conduct intelligent agricultural distribution, to define the reasonable interval for popularizing agro-techniques and to tap the productive poten- tial of dryland. This paper point outs the principle, index and method for dryland agro-types zonation, on the basis of the arid feature in Ningxia. Accordingly, all Ningxia is divided into 4 types, that is, desert steppe wind-sand-drought livestock area, semi-agriculture and semi-livestock area, semi-arid steppe dry farming area, as well as half-humid forest steppe agro-forest area, simultaneously, gives comprehensive evaluation for each type.