| 岳庆玲,常庆瑞,刘京,陶文芳,刘文娟.黄土丘陵沟壑区不同人工林地土壤肥力变化研究[J].干旱地区农业研究,2007,(3):100~104 |
| 黄土丘陵沟壑区不同人工林地土壤肥力变化研究 |
| Soil fertilizer change of different artificial forest on Loess plateau Gully |
| |
| DOI：10.7606/j.issn.1000-7601.2007.03.21 |
| 中文关键词: 黄土沟壑 人工林 土壤肥力 混交林 |
| 英文关键词:Loess plateau artificial forest soil fertilizer mixed forest |
| 基金项目:国家自然科学基金项目(30571527)； 国家泥沙研究培训中心研究项目(2005-01-01)； 国家重点基础研究发展计划项目(2007CB407203) |
|
| 摘要点击次数: 335 |
| 全文下载次数: 310 |
| 中文摘要: |
| 通过对吴起县不同纯林及其交互效应混交林地的土壤调查、样品测定和室内分析,了解不同人工林地土壤肥力变化情况。结果表明0~20 cm表层土壤养分变化较大。其中,山杏×沙棘混交林地和山杏纯林地利于改善土壤有机质水平,分别达到20.79 g/kg和13.93 g/kg;山杏×小叶杨混交林地和小叶杨纯林地碱解氮含量增幅较大,分别为61.55 mg/kg和61.11 mg/kg;山杏×小叶杨混交林地有效磷含量相对较高,为5.43 mg/kg;山杏纯林地、山杏×小叶杨混交林地和小叶杨纯林地速效钾变化较为明显,分别为126.94,125.61和119.28 mg/kg。混交林地比纯林地更利于改善土壤肥力,建议种植山杏×沙棘混交林。 |
| 英文摘要: |
| By the survey of the soil vegetation、the sample test and the indoors analysis of the different soil profile,in the north of Shaanxi,Wuqi county,the artificial forest nutrient changes were researched,it indicated that the nutrient variety of the surface layer 0～20 cm was bigger than that of deeper profile.The mixed of Prunus armemiaca and the mixed of Hippopgae Rhamnoides and Prunus armemiaca were beneficial to improving organic matter quality of soil,reached 20.79 g/kg and 13.93 g/kg;the alkaline hydrolysis content of the mixed of Prunus armemiaca and Populus simonii had stonger increase extent,it reached 61.55 mg/kg and 61.11 mg/kg;the available phosphorus content of the mixed of Prunus armemiaca and Populus simonii was relatively higher than that of others,and it is 5.43 mg/kg;the available kalium content variety of Prunus armemiaca and the mixed of Prunus armemiaca and Populus simonii and Populus simonii were evident,they were 126.94,125.61 and 119.28 g/kg respectively.In order to improve soil nutrient contents,strengthen soil fertility,we must reinforce the soil ecological rehabilitation,and guard against land degradation in this area.It recommeds that the mixed forest of Prunus armemiaca and Hippopgae Rhamnoides should be planted in this region.The results showed that the mixed forest is better than purer forest to improve the soil nutrient. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| | |