摘要
黄土高原重点水土流失区包括黄河河口镇至龙门段沿线的35个县(图1),总面积86378.5km^2,1985年总人口602.69万人,平均人口密度约70人/km^2。这一地区地形复杂,植被稀少,水土流失严重,农林牧业生产基础薄弱,生态环境问题严重,因此,该区一直被作为黄土高原水土保持重点治理区及遥感应用动态监测的重点研究区。本文通过动态仿真模型模拟该区土地利用方式对水土流失和社会经济的潜在影响,优选出能促进该区农林牧业协调发展的土地利用模式,并提出了应采取的对策。
The ecology and environment problem in the serious soil loss area in the Loess Plateau with sparse vegetation and weak production base of agriculture,forestry and animal husbandry is very serious. Through simulating the latent impact of land utilization types on soil lass and social economy by using dynamic emulating models, this paper optimized a rational land utilization model which can improve the coordinative development of agriculture,forestry and animal husbandry in the area. The dynamic tendency of the simulated results indicates that comprehensive exploitation and utilization model of agricultural resources which aims at the rational utilization of land resources and the enhancement of economic benefit,not only can meet the demands of grain but also can improve ecological environment and the coordinative development of agriculture,forestry and animal husbandry. As a whole,economic,social and ecologic benefits in short,medium and long periods can be optimized by the model which can then be taken as the optimum model of rational utilization of agricultural resources in this area.
出处
《中国水土保持》
北大核心
1991年第9期42-45,共4页
Soil and Water Conservation in China
