车升国,郭胜利,高会议.黄土高原沟壑区果园还耕对土壤水分的影响[J].干旱地区农业研究,2009,27(4):71~75
黄土高原沟壑区果园还耕对土壤水分的影响
Influence of orchard planting-life and returned to cultivated land on soil moisture content in typical gully region of the Loess Plateau
  
DOI：10.7606/j.issn.1000-7601.2009.04.14
中文关键词:  黄土高原  土壤水分  退果还耕
英文关键词:loess plateau  soil moisture content  returning orchard to cultivated land
基金项目:中国科学院知识创新方向项目（KZCX2-YW-424）；陕西省自然科学基金
作者单位
车升国 西北农林科技大学资源与环境学院, 陕西 杨凌 712100 
郭胜利 西北农林科技大学资源与环境学院, 陕西 杨凌 712100； 中国科学院水利部水土保持研究所， 陕西 杨凌 712100 
高会议 西北农林科技大学资源与环境学院, 陕西 杨凌 712100 
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中文摘要:
      在黄土高原沟壑区王东沟小流域，在塬面、梁地和坡地三种地貌类型上，分别选取了盛果期果园、老果园和退耕还田等3种土地利用与管理方式，测定土壤0～400 cm（塬面0～600 cm）水分含量分布，研究果园的利用管理方式变化对土壤剖面中水分含量变化的影响。结果 表明，梁地和坡地上，盛果期果园、老果园土壤水分含量均接近作物凋萎湿度(10%)；塬面上，盛果期果园、老果园土壤水分含量为15%。退果4年的耕地、坡地0～400 cm土层土壤储水量显著增加，梁地和塬面虽有增加但与老果园相比，剖面储水量并没有达到显著水平；退 果4年耕地、坡地和梁地剖面中的60～140 cm和220～400 cm含水量提高最显著，塬面上220～600 cm土层中水分提高显著。
英文摘要:
      The change of land use and land management takes crucial roles on environment of soil moisture content. The various land use and management were collected, such as peak period, aged orchard and cultivated land from returning orchard on three terrains, i.e. tableland, slopeland and ridgeland, to analyze the effect of change of land-use and management on soil moisture content in soil profile in the form of measuring distribution of soil moisture in the 0～400 cm (0～600 cm on tableland). The results show that: on the slopeland and ridgeland, soil moisture content of peak orchard and aged orchard is close to crop wilting humidity, approximately equalled to 10%. On tableland, soil moisture in peak orchard and aged orchard is about 15%. For cultivated land aged fo ur years after returning orchard, the water storage in 0～400 cm on slopeland increases significantly. On tableland and ridgeland, compared to aged orchard the soil water storage in profile can not reach significant level although it increases; and for cultivated land aged four years after returning orchard, the soil moisture in 60～140 cm and 220～400 cm in profile on slopeland and ridgeland increase significantly, compared to 220～600 cm on tableland.
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