黄土高原油松正常生长的最低需水量估计

Estimation of Minimum Water Requirement for Normal Growth of Pinus tabulaeformis in Loess Plateau

摘要: 以13年生油松人工林为研究对象，采用树高生长模拟、逐步回归、生长指数等方法，考虑降水和整地蓄水作用，估计黄土高原地区油松正常生长的最低需水量，结果表明：油松正常生长的最低需水量为540 mm，并据此计算出不同降雨量下的集水区大小。

Abstract: 1.Shelterbelt Construction Station of Shaanxi Province, Xi'an Shaanxi 710082, China；2. Forestry Station of Dingbian County, Dingbian Shaanxi 718600, China；3. Forest Seed & Sapling Station of Wuqi County, Wuqi Shaanxi 717600, China；4. College of Forestry, Southwest Forestry University, Kunming Yunnan 650224, China