西藏土地资源特点及其合理开发

THE CHARACTERISTICS OF THE LAND RESOURCE IN XIZANG (TIBET) AND ITS RATIONAL UTILIZATION

西藏土地辽阔，但其宜农土地少而分布集中；宜牧土地数量大，但质量差异大；宜林土地质高量大；高寒干旱及难利用土地较广。这些特点决定了西藏农林牧生产的结构、规模和布局。目前土地开发水平低、商品性生产落后，部分土地有所退化，经济与生态效益均不高。因此，今后应加强科学管理、增加投入，深度开发与保护农林牧各类土地资源。提高现有耕地的单产水平；改良草地与建设人工草地，采育结合；保护森林等乃是促进西藏农业经济发展、改善农业生产条件与生态环境的战略方针和有效对策。

Xizang Autonomous Region (Tibet) is a vast area. There the land suitable for cultivation is few but centralired, the land suitable for pasture is large but different in quality ,and the highfrigid land and the land unsuitable for agriculture are broad. All of these features decide the structure, scale and layout of agriculture in izang. At present the developmental level of lands in Xizang is low, its marketable production is backward and some land has deteriorated so its economic and ecologic benefits are not high, Therefore, alterwards the'intensification of scentific management, incireasing the investment, deep development and protection of thd land resource suitable for agriculture, foresty and pasture reinforced. it is the strategic guiding principles and effective countermeasures for promoting the development of agricultural economy and improving the agricultural productive conditions and ecologic of xizang to raise the per unit area yield of the existing cultivated land improve the grassland, construct the artificial grassland, protect the forests. etc..