文献类型：期刊文献

中文题名：六盘山叠叠沟小流域4种植被土壤层水文调节功能的综合评价

英文题名：Comprehensive evluation on the hydrological adjusting function of soils in four vegetation types in the small watershed of Diediegou,Liupan Mountains

作者：王正安[1,2] 邸利[1] 王彦辉[2] 刘宇[3] 李振华[2] 韩新生[2] 左海军[2]

第一作者：王正安

机构：[1]甘肃农业大学资源与环境学院,兰州730070;[2]中国林业科学研究院森林生态环境与保护研究所,国家林业局森林生态环境重点实验室,北京100091;[3]北京林业大学水土保持学院,北京100083

年份：2017

卷号：31

期号：11

起止页码：181-187

中文期刊名：干旱区资源与环境

外文期刊名：Journal of Arid Land Resources and Environment

收录：北大核心:【北大核心2014】；CSSCI:【CSSCI2017_2018】；CSCD:【CSCD2017_2018】；

基金：国家自然科学基金项目(41471029;41390461;41230851;41461112);宁夏回族自治区生态修复与多功能林业综合研究中心联合资助;国家林业局宁夏六盘山森林生态站;国家重点研发计划项目(2016YFC0501603);甘肃省国际合作项目(1504WKCA006)资助

语种：中文

中文关键词：半干旱区;水文调节功能;坐标综合评定法

外文关键词：semi -arid region; hydrological adjusting function; comprehensive coordinate method

分类号：S152.7

摘要：深入认识和定量评价植被土壤层的水文调节功能,是干旱半干旱区生态工程建设和流域水土资源管理的重要科学依据。文中在宁夏六盘山北侧半干旱区的叠叠沟小流域,分析了4种典型植被(华北落叶松林、白桦林、沙棘灌丛和草地)100cm土层的土壤容重、持水能力和渗透性等土壤水文物理性质,运用坐标综合评定法定量评价了其土壤水文调节功能。结果表明:土壤容重(g/cm3)以沙棘灌丛(1.17)最高,白桦林、华北落叶松林和天然草地较接近(1.05~1.07);土壤总孔隙度表现为华北落叶松林(54.41%)>白桦林(53.30%)>天然草地(51.91%)>沙棘灌丛(50.11%);华北落叶松林和白桦林的蓄水性能和渗透性能要优于沙棘灌丛和草地。综合评价结果显示:白桦林地的土壤水文调节功能最强(0.0008),华北落叶松林地(0.0148)和沙棘灌丛(0.0678)次之,草地的土壤水文调节功能最差(0.2418)。
A deep understanding and a quantitative evaluation of the hydrological adjusting function of soils in dif- ferent vegetation types is beneficial for the ecological engineering and water and soil resource management in arid and semi -arid areas. This research investigated and analyzed the bulk density, water- holding capacity and per- meability of 0 -100cm soil layers in three plantation plots （Larix principis -rupprechtii, Betula platyphflla, Hippo- phae rhamnoides） and one grassland plot in the semi -arid area of Liupan Mountains, and evaluated quantitatively the soil hydrological adjusting function by the method of comprehensive coordinate. Results showed the soil bulk density （ g/cm3 ） was the highest in the Hippophae rhamnoides （1.17） plot, that was similar in the grassland, Lar- ix principis - rupprechtii and Betula platyphyila （ 1.05 - 1.07 ） plots. The total soil porosity ranked as ： plot Lar/x principis-rupprechtii （54.41%）, plot Betula platyphyila （53.30%）, plot grassland （51.91%）, plot Hippophae rhamnoides （50.11%）. plot Larix principis - rupprechtii and plot Betula platyphyila had the best water - holding capacity and infiltration capacity, then were the plot Hippophae rhamnoides and the grassland. The comprehensive coordinate evaluation indicated the plot Betula platyphylla had the best soil hydrological adjusting function, fol- lowed by the Larix principis - rupprechtii and Hippophae rhamnoides plots, whereas the grassland was the worst.