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| Review and discuss on the effect and influence factors of vegetation construction on soil water in semi-arid area on Loess Plateau |
| Xu Bingcheng,Shan Lun,Chen Yunming |
| State Key Laboratory of Soil Erosion and Dryland Fanning on Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences & Ministry of Water Resources; Northwestern Sci-Tech University of Agriculture and Forestry, 712100, Shaanxi, Yangling, China |
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Abstract Water is the primary limiting factor for plant growth and vegetation construction in semi-arid area on the Loess Plateau, and the vegetation is the most active factor that influences the soil moisture condition. The effects of vegetation types, structure and productivities on soil moisture were studied, the water consumption characteristics and affecting factors of different plants were summarized and discussed. It is proposed that for successful and sustainable vegetation constructions, the productivity of vegetation should be developed moderately and the plant or vegetation type should be chosen rationally according to the regional rainfall and soil moisture capacity. Based on the deeply research on the water requirement and consumption laws of different plants, plant productivity and its water consumption, namely water use efficiency should be strengthened, and the study on the effects of vegetation construction pattern on soil moisture should be developed.
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Received: 20 November 2003
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