干旱河谷-山地森林交错带植被调控模式对土壤N和P的影响
|
摘要
调控岷江干旱河谷-山地森林交错带生态系统不仅具有遏止干旱河谷上延和扩展亚高山森林生态功能的重要作用,而且是"5.12"地震灾后恢复与重建的重要内容。为了解不同调控模式对交错带土壤养分特征的影响,基于该区"缺N少P"的现状,以调控18个月的4种典型调控模式为研究对象,比较分析了不同调控模式下土壤N和P的特征。各调控模式下土壤N和P含量及贮量无显著差异。相对于其他模式,以固N树种刺槐和固N草本紫花苜蓿为主体的调控模式具有相对较高的土壤NH4-N和速效P含量。同样的,以固N树种刺槐和速生树种墨西哥杨为主体的调控模式可以很好的组合,也表现出较高的土壤速效N和速效P含量。但是仅以速生树种为主体的调控模式可能有较高资源需求量并没有表现出较高的土壤速效N和速P含量。并且,不同调控模式下土壤N和P各组分比例也有所不同。这些结果为岷江干旱河谷-山地森林交错带的植被实践提供了一定的基础数据。
The vegetation modification at the ecotone between arid valley and mountain forest plays an important role in stopping the expansion of dry valley and extending the ecological functions of subalpine forest,which is also the important content of rebuilding and restoration after "5·12" heavy earthquake.In order to understand the effects of modified mode on soil nutrient characters,the characteristics of soil N and P were investigated under four modification modes after 18 month modification.There were insignificant differences in the content and stock of soil N and P among the different modification modes.Compared with other modes,the modes with Robinia pseudoacacia and Medicago sativa,and with Robinia pseudoacacia and poplar showed relative higher content of NH4-N and available P.However,the mode dominated by fast-growing trees did not display higher content of available N and available P due to higher nutrient needs.Additionally,soil N and P pattern was different among the different modes.The results provided basic scientific data for vegetation practice at the ecotone between dry valley and mountain forest.
The vegetation modification at the ecotone between arid valley and mountain forest plays an important role in stopping the expansion of dry valley and extending the ecological functions of subalpine forest,which is also the important content of rebuilding and restoration after "5·12" heavy earthquake.In order to understand the effects of modified mode on soil nutrient characters,the characteristics of soil N and P were investigated under four modification modes after 18 month modification.There were insignificant differences in the content and stock of soil N and P among the different modification modes.Compared with other modes,the modes with Robinia pseudoacacia and Medicago sativa,and with Robinia pseudoacacia and poplar showed relative higher content of NH4-N and available P.However,the mode dominated by fast-growing trees did not display higher content of available N and available P due to higher nutrient needs.Additionally,soil N and P pattern was different among the different modes.The results provided basic scientific data for vegetation practice at the ecotone between dry valley and mountain forest.
引文
[1]刘彬,吴福忠,张健,等.岷江干旱河谷-山地森林交错带震后生态恢复的关键科学技术问题[J].生态学报,2008,28(12):5895-5898.
[2]庞学勇,包维楷,吴宁.岷江上游干旱河谷气候特征及其成因[J].长江流域资源与环境,2008,17(Z1):46-53.
[3]王雁林,王文科,杨泽元,等.渭河流域面向生态的水资源合理配置与调控模式探讨[J].干旱区资源与环境,2005,19(1):14-20.
[4]左其亭,陈嘻,周可法.西部干旱区小流域生态环境调控模式研究[J].水土保持学报,2001,15(3):85-88.
[5]冶民生,关文斌,白占雄,等.岷江干旱河谷植物群落生态梯度分析[J].中国水土保持科学,2005,3(2):70-75.
[6]杨兆平,常禹,胡远满,等.岷江上游干旱河谷景观变化及驱动力分析[J].生态学杂志,2007,26(6):869-874.
[7]林颖,张丁娜,宋庆英.土壤速效养分变化趋势及对策[J].黑河科技,2002,3:59-60.
[8]王文玲,赵力英.关于我区部分地区耕作土壤肥力情况及改良措施的探讨[J].内蒙古石油化工,1997,25:130-132.
[9]张世熔,孙波,赵其国,等.南方丘陵区不同尺度下土壤氮素含量的分布特征[J].土壤学报,2007,44(5):4057-4064.
[10]敖和军,邹应斌,申建波.旱稻施氮对连作晚稻产量和氮肥利用率及土壤有效氮含量的影响[J].植物营养与肥料学报,2007,13(5):772-780.
[11]刘文彬.岷江上游半干旱河谷灌丛植物区系[J].山地研究,1992,10(2):83-88.
[12]周志琼,包维楷,吴福忠,等.岷江干旱河谷黄蔷薇和川滇蔷薇更新能力及其限制因素[J].生态学报,2009,29(4):1931-1939.
[13]柏松,黄成敏,唐亚.岷江上游干旱河谷海拔梯度上的土壤发生特征[J].土壤,2008,40(6):980-985.
[14]谭波,张健,杨万勤,等.岷江干旱河谷-山地森林交错区典型人工林细根生物量及其碳储量特征[J].四川林业科技,2008,29(2):18-22.
[15]杨兆平,常禹,杨梦,等.岷江上游干旱河谷景观边界动态及其影响域[J].应用生态学报,2007,18(9):1972-1976.
[16]冶民生,关文彬,谭辉,等.岷江干旱河谷灌丛α多样性分析[J].生态学报,2004,24(6):1123-1130.
[17]严代碧,岳永杰,郑绍伟,等.岷江上游干旱河谷区土壤水分含量及其动态[J].南京林业大学学报,2006,30(4):64-68.
[18]杨钦周.岷江上游干旱河谷灌丛研究[J].山地学报,2007,25(1):1-32.
[19]秦道珠,李冬初,徐明岗,等.红壤稻田施用控释肥与氮素转化的关系[J].中国农学通报,2008,24(9):273-276.
[20]沈仁芳,赵其国.红壤土柱中营养元素的淋失[J].土壤,2006,12(5),178-181.
[21]王志勇,红梅,杨殿林,等.供氮水平和有机无机配施对夏玉米产量及土壤硝态氮的影响[J].中国土壤与肥料,2008,6:11-14.
[22]周博,周建斌,韩东锋,等.日光温室土壤剖面硝态氮在休闲期的运移研究[J].西北农业学报,2008,17(2):118-121.
[23]张长保,王全九,孙樊军,等.模拟降雨下初始含水量对砂黄土硝态氮迁移特征的影响[J].植物营养与肥料学报,2008,14(5):894-899.
[24]王秀丽,孙波.红壤旱地施用有机肥的氮素淋失过程[J].土壤学报,2008,45(4):745-749.
[25]欧勇胜,张世熔,余琼,等.横断山北部生态脆弱区土壤磷素空间分布特征[J].生态学报,2005,25(10):2776-2781.
[26]娄运生,李忠佩,张桃林.不同水分状况及施磷量对水稻土中速效磷含量的影响[J].土壤,2005,37(6):640-644.
[27]章爱群,贺立源,赵会娥,等.有机酸对土壤无机态磷转化和速效磷的影响[J].生态学报,2009,29(8):4061-4069.
[2]庞学勇,包维楷,吴宁.岷江上游干旱河谷气候特征及其成因[J].长江流域资源与环境,2008,17(Z1):46-53.
[3]王雁林,王文科,杨泽元,等.渭河流域面向生态的水资源合理配置与调控模式探讨[J].干旱区资源与环境,2005,19(1):14-20.
[4]左其亭,陈嘻,周可法.西部干旱区小流域生态环境调控模式研究[J].水土保持学报,2001,15(3):85-88.
[5]冶民生,关文斌,白占雄,等.岷江干旱河谷植物群落生态梯度分析[J].中国水土保持科学,2005,3(2):70-75.
[6]杨兆平,常禹,胡远满,等.岷江上游干旱河谷景观变化及驱动力分析[J].生态学杂志,2007,26(6):869-874.
[7]林颖,张丁娜,宋庆英.土壤速效养分变化趋势及对策[J].黑河科技,2002,3:59-60.
[8]王文玲,赵力英.关于我区部分地区耕作土壤肥力情况及改良措施的探讨[J].内蒙古石油化工,1997,25:130-132.
[9]张世熔,孙波,赵其国,等.南方丘陵区不同尺度下土壤氮素含量的分布特征[J].土壤学报,2007,44(5):4057-4064.
[10]敖和军,邹应斌,申建波.旱稻施氮对连作晚稻产量和氮肥利用率及土壤有效氮含量的影响[J].植物营养与肥料学报,2007,13(5):772-780.
[11]刘文彬.岷江上游半干旱河谷灌丛植物区系[J].山地研究,1992,10(2):83-88.
[12]周志琼,包维楷,吴福忠,等.岷江干旱河谷黄蔷薇和川滇蔷薇更新能力及其限制因素[J].生态学报,2009,29(4):1931-1939.
[13]柏松,黄成敏,唐亚.岷江上游干旱河谷海拔梯度上的土壤发生特征[J].土壤,2008,40(6):980-985.
[14]谭波,张健,杨万勤,等.岷江干旱河谷-山地森林交错区典型人工林细根生物量及其碳储量特征[J].四川林业科技,2008,29(2):18-22.
[15]杨兆平,常禹,杨梦,等.岷江上游干旱河谷景观边界动态及其影响域[J].应用生态学报,2007,18(9):1972-1976.
[16]冶民生,关文彬,谭辉,等.岷江干旱河谷灌丛α多样性分析[J].生态学报,2004,24(6):1123-1130.
[17]严代碧,岳永杰,郑绍伟,等.岷江上游干旱河谷区土壤水分含量及其动态[J].南京林业大学学报,2006,30(4):64-68.
[18]杨钦周.岷江上游干旱河谷灌丛研究[J].山地学报,2007,25(1):1-32.
[19]秦道珠,李冬初,徐明岗,等.红壤稻田施用控释肥与氮素转化的关系[J].中国农学通报,2008,24(9):273-276.
[20]沈仁芳,赵其国.红壤土柱中营养元素的淋失[J].土壤,2006,12(5),178-181.
[21]王志勇,红梅,杨殿林,等.供氮水平和有机无机配施对夏玉米产量及土壤硝态氮的影响[J].中国土壤与肥料,2008,6:11-14.
[22]周博,周建斌,韩东锋,等.日光温室土壤剖面硝态氮在休闲期的运移研究[J].西北农业学报,2008,17(2):118-121.
[23]张长保,王全九,孙樊军,等.模拟降雨下初始含水量对砂黄土硝态氮迁移特征的影响[J].植物营养与肥料学报,2008,14(5):894-899.
[24]王秀丽,孙波.红壤旱地施用有机肥的氮素淋失过程[J].土壤学报,2008,45(4):745-749.
[25]欧勇胜,张世熔,余琼,等.横断山北部生态脆弱区土壤磷素空间分布特征[J].生态学报,2005,25(10):2776-2781.
[26]娄运生,李忠佩,张桃林.不同水分状况及施磷量对水稻土中速效磷含量的影响[J].土壤,2005,37(6):640-644.
[27]章爱群,贺立源,赵会娥,等.有机酸对土壤无机态磷转化和速效磷的影响[J].生态学报,2009,29(8):4061-4069.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心