| 黄土区人工林的土壤持水力与有效水状况 |
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| 引用本文： | 王孟本,柴宝峰,李洪建,冯彩平.黄土区人工林的土壤持水力与有效水状况[J].林业科学,1999,35(2):7-14. |
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| 作者姓名： | 王孟本 柴宝峰 李洪建 冯彩平 |
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| 作者单位： | 山西大学黄土高原研究所,太原,030006 |
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| 基金项目： | 山西省科技攻关项目,山西省留学回国人员基金 |
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| 摘 要： | 以晋西北黄土区河北杨林，小叶杨林和柠条灌木林为对象，就各人工林地的土壤持水力和在４个不同降水的土壤有效水动态特点进行了研究。结果表明，林地间土壤持水力和比水容量为：河北杨林〉小叶杨林〉柠条灌木林。各林地的土壤持水力和供水力普遍偏低。
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| 关 键 词： | 土壤水分特征曲线 土壤持水力 土壤有效水 人工林 黄土区 |
SOIL WATER HOLDING CAPACITY AND SOIL AVAILABLE WATER IN PLANTATIONS IN THE LOESS REGION |
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| Wang Mengben,Chai Baofeng,Li Hongjian,Feng Caiping.SOIL WATER HOLDING CAPACITY AND SOIL AVAILABLE WATER IN PLANTATIONS IN THE LOESS REGION[J].Scientia Silvae Sinicae,1999,35(2):7-14. |
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| Authors: | Wang Mengben Chai Baofeng Li Hongjian Feng Caiping |
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| Abstract: | Based on the fixed field monitoring data of soil water content during the growing season in three different plantations ( Populus hopeiensis,Populus simonii, and Caragana korshinskii) ,by means of soil water characteristic curves the authors studied the soil water holding ability, the specific water capacity as well as soil available water of three plantations at different period of growing season in different precipitation year.The results were as follows: \ \ Of the P.hopeiensis,P.simonii, and C.korshinskii plantations the soil water holding capacity was relatively lower.Among them the soil water holding capacity and the specific water capacity had the following order: P.hopeiensis plantation.> P.simonii plantation> C.korshinskii plantation.Although the dynamics of SAW(soil available water)in a certain year was determined mainly by the amount and seasonal distribution of rainfall it was also influenced by the successive years of drought.Therefore when the precipitation during the growing season was 494 3mm(1992),234 8mm(1993),338 5mm(1994) and 651 6mm(1995),respectively,the SAW content had following order:1995>1992>1993>1994.There was little of SAW content during the early period of the growing season in 1992 and 1995, and it was even quite low during the whole growing season in 1993 and 1994. |
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| Keywords: | Soil water characteristic curve Soil water holding capacity Soil available water Plantation Loess region |
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