佘冬立,邵明安,俞双恩.黄土高原典型植被覆盖下SPAC系统水量平衡模拟[J].农业机械学报,2011,42(5):73-78.
She Dongli,Shao Ming’an,Yu Shuang’en.Water Balance Simulation in SPAC Systems of Slope Lands Covered with Typical Vegetations on Loess Plateau[J].Transactions of the Chinese Society for Agricultural Machinery,2011,42(5):73-78.
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黄土高原典型植被覆盖下SPAC系统水量平衡模拟   [下载全文]
Water Balance Simulation in SPAC Systems of Slope Lands Covered with Typical Vegetations on Loess Plateau   [Download Pdf][in English]
  
DOI:10.3969/j.issn.1000-1298.[year].[issue].[sequence]
中文关键词:  坡耕地  长芒草地  苜蓿草地  水量平衡  SWAP模型
基金项目:南方地区高效灌排与农业水土环境教育部重点实验室开放研究基金资助项目(IDA003)、中央高校基本科研业务费专项资金资助项目(2009B02014)和黄土高原土壤侵蚀与旱地农业国家重点实验室基金资助项目(10501-250)
作者单位
佘冬立 河海大学 
邵明安 中国科学院 
俞双恩 河海大学 
中文摘要:应用土壤-水-大气-植物整合模型(SWAP),在野外观测试验基础上对坡耕地(豆地)、长芒草地和苜蓿草地土壤-植被-大气系统中的水循环进行了数值模拟。结果表明,土壤水分和储水量模拟结果与实测值具有很好的一致性;长芒草地水分收支基本平衡,苜蓿草地的水分支出是坡耕地(豆地)的1.38倍,其中苜蓿的蒸腾耗水量是坡耕地(豆地)的3.88倍,这是引起苜蓿草地群落过度消耗土壤储水而呈现负补偿的主要原因。农地退耕还林还草后会增加SPAC系统水分支出,如果植被群落耗水过大很可能使土壤干化。
She Dongli  Shao Ming’an  Yu Shuang’en
Hohai University;Chinese Academy of Sciences;Hohai University
Key Words:Sloping cropland, Stipa bungeana grassland, Alfalfa grassland, Water balance, SWAP model
Abstract:A numerical model, soil-water-atmosphere-plant model (SWAP), was applied to simulate dynamics of soil moisture and soil water balance in three kinds of land use patterns, including cropland with mung bean, Stipa bungeana grassland and alfalfa grassland, based on field observations. The predicted values of soil moisture and soil water storage had obviously consistent with the measured values. The water input on Stipa bungeana grassland was roughly equal to the output. The water output on alfalfa grassland was 1.38 times of that on cropland, and the evapotranspiration of alfalfa was 3.88 times of that on cropland with mung bean, which was the main reason causing soil water deficit on alfalfa grassland. So conversion of farmland to forest and grassland regeneration will increase the output of water in the SPAC system, if there is a great deal of water consumption by vegetation community, it will lead to soil desiccation.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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