玛纳斯县新湖农场植物治沙效益评估

Benefit Evaluation on The Plant Anti-desertification of Xinhu Farm in Manasi County

利用新湖农场1998-2007年气象、社会、经济资料及实测植被、土壤数据,分析了近10年来防沙治沙情况,并选取定量、定性指标,建立效益评估模型,对植物治沙产生效益进行评估。结果表明:植被覆盖率由1990年1.63%提高到2007年5.37%,植物种类、土壤碱解N、速效P随栽植年限增加而上升,沙化面积比例由1990年的2.90%减少到2006年的0.59%,风沙天气由1998年的27次减少到2007年的4次;农场土地利用结构得到优化,人均林草面积由1990年人均0.02hm^2增加到2006年0.15hm^2。

The benefit of plant Anti - desertification is evaluated in this paper by using the information of weather, society, economy and the data of plant and soil in Xinhu Farm from 1998 to 2007; analyzing conditions of anti - desertification in this decade; selecting quantitative and qualitative targets as well as establishing the model of benefit evaluation. The results indicate that the bestrew ratio of vegetable has increased from 1.63%in 1990 to 5.37%in 2007. Floristic category and the N/P in soil were also enhanced by plant year increasing. The area rates of desertification reduce from 2.90% in 1990 to 0. 59% in 2006. Sand blown weather times reduce from 27 in 1998 to 4 in 2007. Per capita forest grass area improves from 0. 02hm2 in 1990 to 0.15hm2 in 2006.