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干旱区生态环境脆弱,在该区域从事开发建设活动的同时,必须做好水土保持工作,保护好区域生态环境。以干旱区某飞机场项目的水土流失预测为例,从项目和项目区现状出发,采用资料统计法和类比法对水土流失预测内容进行了定量分析,预测结果是:施工期该项目可能造成的水土流失面积为210.88 hm2,自然恢复期为101.55 hm2;水土流失总量为29 971.79 t,新增水土流失量为21 904.17 t;造成水土流失的区域主要是飞行区、民用航站区等,这两个区域的新增水土流失量占新增水土流失总量的比例分别为57.87%、30.88%。针对预测结果提出了合理的防治建议。
The ecological environment in arid areas is fragile. While developing and constructing activities in this area, we must do a good job in soil and water conservation and protect the regional ecological environment. Taking the prediction of soil and water loss of an airport project in arid area as an example, the content of soil and water loss prediction is quantitatively analyzed by means of data statistics and analogy from the current status of the project and the project area. The prediction results are as follows: The soil erosion area is 210.88 hm2 and the natural recovery period is 101.55 hm2. The total amount of soil and water loss is 29 971.79 t and the newly added amount of soil and water loss is 21 904.17 t. The areas causing water and soil loss are mainly the flight area and the civil airport area, etc. The proportions of new water and soil loss in the two regions accounting for 57.27% and 30.88% of the total newly added water and soil loss respectively. Aiming at the forecasting result, a reasonable prevention and control suggestion is put forward.