文献类型：期刊文献

中文题名：若尔盖高原不同退牧还湿方式下泥炭沼泽表层土壤的水源涵养能力研究

英文题名：Water Conservation Capacity of Topsoil in Peat Bogs under Different Ways of Ceasing Herding in Zoigê Plateau

作者：王京[1] 卓玛姐[2] 阿西[3] 汪晓东[1] 王瑞[1] 玛吉措[2] 林英华[1]

第一作者：王京

机构：[1]中国林业科学研究院生态保护与修复研究所,北京100091;[2]四川若尔盖湿地国家级自然保护区管理局,四川若尔盖624599;[3]四川省若尔盖县林业和草原局,四川若尔盖624599

年份：2022

卷号：20

期号：2

起止页码：188-195

中文期刊名：湿地科学

外文期刊名：Wetland Science

收录：CSTPCD;;Scopus;北大核心:【北大核心2020】；CSCD:【CSCD2021_2022】；

基金：国家重点研发计划项目(2017YFC0504802)资助。

语种：中文

中文关键词：土壤;水源涵养能力;泥炭沼泽;草畜平衡;季节性限牧;禁牧;若尔盖高原

外文关键词：soil;water conservation capacity;peat bog;forage-livestock balance;seasonal restricted grazing;grazing prohibition;ZoigêPlateau

分类号：P343.3

摘要：于2018年和2019年的7月中旬和9月中旬,在若尔盖湿地国家级自然保护区的完全禁牧区、一年载蓄平衡实验区、二年载蓄平衡实验区和每年6月1日至10月31日期间禁牧的季节性限牧实验区中,随机选择一处泥炭沼泽作为采样地,以核心区花湖区的天然泥炭沼泽作为对照地;在采样地和对照地中,采集0~10 cm深度土壤样品,测定其容重、总孔隙度、毛管孔隙度、非毛管孔隙度、自然含水量、毛管持水量、最大持水量和最小持水量,研究不同退牧还湿方式下泥炭沼泽表层土壤的水源涵养能力。研究结果表明,与对照地的天然泥炭沼泽相比,2018年和2019年的7月中旬和9月中旬,完全禁牧区、季节性限牧区、一年载蓄平衡区和二年载蓄平衡区中采样地泥炭沼泽0~10 cm深度土壤的容重都增大了;2018年9月中旬、2019年7月中旬和9月中旬,完全禁牧区、季节性限牧区、一年载蓄平衡区和二年载蓄平衡区中采样地泥炭沼泽0~10 cm深度土壤的毛管持水量和最小持水量都减小了;2018年和2019年的7月中旬和9月中旬,总体上,二年载蓄平衡区泥炭沼泽、季节性限牧区泥炭沼泽、完全禁牧区泥炭沼泽、一年载蓄平衡区泥炭沼泽的0~10 cm深度土壤的水源涵养能力依次减小。
In the middle of July and September 2018 and 2019, in order to study water conservation capacity under different ways of ceasing herding, the soil samples at 0-10 cm depth were collected in a natural peat bog as the control site, and peat bogs of grazing prohibition, seasonal restricted grazing, 1-year forage-livestock balance, and 2-year forage-livestock balance areas as the sampling sites in Zoigê Wetland National Nature Reserve. The bulk density, total porosity, capillary porosity, noncapillary porosity, natural water content,capillary water holding capacity, and minimum water holding capacity of the soil samples at 0-10 cm depth were examined. The results showed that the soil bulk densities at 0-10 cm depth in the sampling sites were increased in the middle of July and September 2018 and 2019;but capillary water holding capacity and the minimum water holding capacity were decreased in the sampling sites in the middle of September 2018 and the middle of July and September 2019 compared with those of natural peat bog of control site;as a whole,the water conservation capacities of the soils at 0-10 cm depth from 2-year forage-livestock balance, seasonal restricted grazing, the grazing prohibition, and 1-year forage-livestock balance areas decreased in turn.