迁移农业

人类的农业生产系统，经历了原始迁移农业、古代传统农业和工业化农业等历史发展阶段.现正探索着向工业化后农业的新阶段发展。

Having passed through such stages as primal migratory agriculture , ancient traditional agriculture and industrialized agriculture , now agriculture production system of mankind is advancing towards the new stage-post industrialization agriculture .

由于这种劳动力迁移和农业领域投资不足，农业生产力未见改善。

As a result of both this labour migration and the under-investment in the agricultural sector , farming productivity has not improved .

安徽宁国地区岩-土系统元素迁移及其农业地质环境效应

Movement of Elements in a Rock-Soil System and the Effects of a Geological Environment on Agriculture in the Ningguo Region , Anhui Province

过量施肥导致的农田土壤氮磷的富集和迁移是农业面源污染的重要来源。

Nitrogen ( N ) and phosphorus ( P ) enriched and transported from farmland soil are the major source of agricultural non-point source pollution .

农村劳动力向城市迁移，农业劳动力向非农产业转移，是全球城市化工业化进程中的必然现象。

The migration from the rural to the cities and the change from the agriculture to non-agricultural industries are natural phenomenon in the global process of industrialization and urbanization .

土壤入渗过程是流域水文循环的重要组成部分，与土壤水分再分配、土壤侵蚀、养分随水分的迁移、农业面源污染等问题密切相关。

Infiltration process is an important part of hydrological cycle , which closely relates to soil moisture redistribution , soil erosion , nutrient migration with moisture , and agricultural non-point source pollution and so on .