长汀强度水土流失区不同治理措施对土壤化学性质的影响  

Effects of Different Control Measures on Soil Chemical Properties in the Serious Soil and Water Loss Areas of Changting County

作　　者：岳辉 YUE Hui(Soil and Water Conservation Station of Changting County, Changting 366300, Fujian, Chin)

机构地区：[1]长汀县水土保持事业局,福建长汀366300

出　　处：《亚热带资源与环境学报》2015年第4期38-41,共4页Journal of Subtropical Resources and Environment

基　　金：国家科技支撑计划"南方红壤水土流失治理技术示范"(2013BAC08B03);国家自然科学基金"南方红壤侵蚀区芒萁散布的地学分析及其时空模拟"(41171232);福建省自然科学基金"南方红壤侵蚀区芒萁散布的突变机理"项目(2013J01156)

摘　　要：在福建省长汀县强度水土流失山地,探讨了草灌乔混交、补植乔灌和"老头松"改造等3种不同治理措施经10年演化后对土壤化学性质的影响。结果表明:不同治理措施下的土壤p H值均有所下降,以草灌乔混交措施pH值最低;土壤有机质、全N、速效N、全P、速效P、全K和速效K含量均以草灌乔混交措施最高,补植乔灌"老头松"改造措施次之。3种措施下土壤有机质、全N和速效N含量差异明显,而全P、速效P、全K和速效K含量差异较小,但补植乔灌措施下速效P和速效K含量均接近草灌乔混交措施。本研究显示在土壤改良中草灌乔混交措施优于补植乔灌和"老头松"改造措施,表明丰富植被结构在水土保持生态修复中具有重要作用。Effects on soil chemical properties after 10-year evolution of 3 measures had been studied for seriously water-eroded mountain areas in Changting county of Fujian province. The measures in-cluded：Herb-Shrub-Arbor mixed （ HSA ） , Shrub-Arbor added （ SA ） , and ‘Old-Pine ’ renewed （ OP） . The results showed that：soil pH values under 3 measures were all lower than that of the control measure, and the HAS measure yielded the lowest;the amounts of soil organic matter, total nitrogen, phosphorus and potassium, available nitrogen, phosphorus and potassium were also the greatest under the HAS, followed by SA and OP; the amounts of soil organic matter, total and available nitrogen were obviously different under the 3 measures, while those of total phosphorus, total potassium, availa-ble phosphorus, and available potassium were similar, as well as the available phosphorus and availa-ble potassium under SA were near those under HSA. This study indicated the HAS measure was the best in soil improvement, showing the great importance of enriching vegetation structures in soil and water conservation and ecological restoration.

关 键 词：长汀 水土流失 治理措施 土壤性质 

分 类 号：S718.516[农业科学—林学]