Preliminary Discussion on the Loss of Soil Moisture from Terrance Bank and Its Effects upon Crom Yicld

Yang Kaibao; Guo Peicai

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Preliminary Discussion on the Loss of Soil Moisture from Terrance Bank and Its Effects upon Crom Yicld

- Preliminary Discussion on the Loss of Soil Moisture from Terrance Bank and Its Effects upon Crom Yicld
- Bulletin of Soiland Water Conservation Vol. 13, Issue 4, Pages: 43-47(1994)
- 作者机构：
  
  陕西省黄土高原治理研究所米脂县,718100
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- Published：1994
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Yang Kaibao, Guo Peicai. Preliminary Discussion on the Loss of Soil Moisture from Terrance Bank and Its Effects upon Crom Yicld[J]. Bulletin of Soiland Water Conservation, 1994, 13(4): 43-47.
DOI：

Yang Kaibao, Guo Peicai. Preliminary Discussion on the Loss of Soil Moisture from Terrance Bank and Its Effects upon Crom Yicld[J]. Bulletin of Soiland Water Conservation, 1994, 13(4): 43-47. DOI：

摘要

通过对陕北丘陵沟壑区梯田土壤水分及作物产量监测结果的分析，认为田坎水分蒸发对田面土壤水分的减少作用，在距田坎1m距离内是明显的，它使作物单株产量较坡地减少了18.2%.理论计算表明：1m高田坎水分损失10.9%

2m高田坎水分损失11.2%.

Abstract

In this paper

soil moisture loss from terrance bank and its effects on crop yield were studied

based on themeassurement of soil moisture and crop yield on hilly

and gully region of North Shaanxi. The results indicated thatevaporation from terrance bank obviously affected soil moisture of the terrance land in lm from the bank

and theyield of per stem of crop reduced 18.2% compared to the slope land. According to the calculation

soil water of terrace landwith lm bank lost 10.9% and with 2m bank lost 11.2% compared to the slope land.

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