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| 黄土丘陵区不同密度人工油松林土壤水分状况研究 | |
| 引用本文： | 黄琳琳,陈云明,王耀凤,王利霞.黄土丘陵区不同密度人工油松林土壤水分状况研究[J].西北林学院学报,2011,26(5):1-5. |
| 作者姓名： | 黄琳琳 陈云明 王耀凤 王利霞 |
| 作者单位： | 1. 西北农林科技大学 资源环境学院,陕西 杨陵,712100 2. 西北农林科技大学 资源环境学院,陕西 杨陵 712100;中国科学院水利部 水土保持研究所,陕西 杨陵 712100 3. 西安市农机监理与推广总站,陕西 西安,710065 |
| 基金项目： | 陕西省科学院科技计划重点项目“陕北黄土丘陵区植被恢复与动物多样性保护关键技术”(2008K-04); 中国科学院知识创新工程“百人计划”项目; 黄土高原半干旱区群落水分平衡与调控机理(KZCX2-YW-BR-02) |
| 摘 要： | 以黄土丘陵区不同密度的人工油松林为对象,通过野外观测资料分析了其土壤含水量的季节及年际动态。结果表明:(1)研究期内降雨量主要集中在6-9月,占到全年降水量的80%以上,1-4月仅占当年降水量的3.2%~17.0%,表现出春旱严重;(2)林地土壤含水量随降雨量具有明显的季节和年际变化,并表现出1-2个月的滞后期,旱季不同密度的人工油松林地土壤含水量差异较小,雨季及生长季末差异明显,0~300 cm土层平均土壤含水量均表现出小密度林地显著高于中密度和大密度林地(P<0.05)。(3)3种不同密度林地的土壤含水量垂直分布具有相似规律,均随土层深度增加而显著减低(P<0.05)。 |
| 关 键 词： | 土壤水分 林分密度 人工油松林 黄土丘陵区 |
Soil Moisture of Artificial Pinus tabulaeformis Stands with Different Densities in Loess Hilly Region |
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| HUANG Lin-lin,CHEN Yun-ming,WANG Yao-feng,WANG Li-xia.Soil Moisture of Artificial Pinus tabulaeformis Stands with Different Densities in Loess Hilly Region[J].Journal of Northwest Forestry University,2011,26(5):1-5. | |
| Authors: | HUANG Lin-lin CHEN Yun-ming WANG Yao-feng WANG Li-xia |
| Institution: | HUANG Lin-lin1,CHEN Yun-ming1,2,WANG Yao-feng3,WANG Li-xia1(1.College of Resources and Environment,Northwest A&F University,Yangling,Shaanxi 712100,China,2.Institute of Soil and Water Conservation of Chinese Academy of Sciences and Ministry of Water Resources,3.Xi'an Center of Agricultural Machinery Monitoring and Extension,Xi'an,Shaanxi 710065,China) |
| Abstract: | From the field investigation,the seasonal and interannual dynamics of soil moisture in artificial Pinus tabulaeformis stands with different densities in the Loess Hilly Region were studied.The results showed that the rainfall mainly happened from June to September,accounting for 80% of a year.Precipitation from January to April accounted for 3.2%-17.0%,and caused severe spring drought.There were significant seasonal and annual variations of soil water content in rainfall reason,and showed 1-2-month lag.The ... |
| Keywords: | soil moisture stand density artificial Pinus tabulaeformis Loess Hilly Region |
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