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林草植被恢复建造是水土保持型生态农业建设中的重要一环,也是安塞试区极具特色的一个重要方面.进入“九五”以来,试区在整体推进水土保持型生态农业建设中,进一步加强植被建造,调整土地利用结构,生态经济良性循环态势已经呈现出来.1999年农林草地面积比例为 1:2.0:2.2。“九五”前4年平均耕地面积约为“七五”之初的1/2,然而粮食平均单产却是“七五”的 2.85倍,达到 2280kg/hm~2,总产依然得到增加.盖度0.6以上的植被的覆盖率达到57%,天然灌木林成片出现.年输沙模数较治理之初减少80%以上.
The restoration of grassland and grassland vegetation is an important part in the construction of soil and water conservation-oriented eco-agriculture and an important feature of Ansai Experimental Zone. Since entering the Ninth Five-Year Plan, the trial area has been promoting the development of soil and water conservation- , Further strengthening of vegetation construction and adjustment of land use structure has shown a positive cycle of eco-economy. In 1999, the ratio of agriculture and forestry to grassland area was 1: 2.0: 2.2. The average cultivated area in the first four years of the Ninth Five-Year Plan was about 1/2 of the beginning of the Seventh Five-Year Plan. However, the average grain yield was 2.85 times of the Seventh Five-Year Plan, reaching 2280kg / hm 2 and the total output still increased. Coverage of vegetation coverage of more than 0.6 reached 57%, natural shrubs appear into pieces. Annual sediment transport modulus decreased more than 80% from the beginning of treatment.