| 晋西北地区开荒增洪增沙分析 |
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| 引用本文： | 刘勇,冉大川.晋西北地区开荒增洪增沙分析[J].中国水土保持,2000(4):19-21. |
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| 作者姓名： | 刘勇 冉大川 |
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| 作者单位： | 黄河水利委员会,西峰水土保持科学试验站,甘肃,西峰市,745000 |
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| 摘 要： | 195 9～ 1985年的 2 6年间 ,晋西北地区每增加 1人就要增加 0 487hm2 耕地 ,增加的耕地都是通过垦荒而获得的。垦荒导致地表植被、土体结构破坏 ,使区域内生态环境日趋恶化。据观测资料分析 ,荒坡开垦后基本不增洪 ,60～ 80年代晋西北地区开荒增沙量呈上升趋势 ,80年代年均增沙量达 95 64万t。
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| 关 键 词： | 毁林毁草 开荒 水土流失 晋西北地区 |
Analysis of Flood and Sediment Increases by Wasteland Reclamation in Northwestern Shanxi |
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| LIU Yong,RAN Da-chuan.Analysis of Flood and Sediment Increases by Wasteland Reclamation in Northwestern Shanxi[J].Soil and Water Conservation In China,2000(4):19-21. |
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| Authors: | LIU Yong RAN Da-chuan |
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| Abstract: | From 1959 to 1985, there was 0 487 hm 2 cultivated land need to be reclaimed from waste land for one increased person in northwestern Shanxi.Waste land reclamation leads to destroy of vegetation and soil structure, deteriorate local ecological environment day by day. Based on record data analysis, there is basically no increase of flood. The sediment increase in waste land reclamation area was going up from 1960s to 1980s in northwestern Shanxi, the annual average sediment increase was 956 4 thousand tons in 1980s. |
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| Keywords: | forest and grass destroy waste land reclamation soil and water loss northwestern Shanxi |
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