牧压梯度下高寒杂草类草甸土壤持水能力及影响因素分析

doi:10.7522/j.issn.1000-0240.2014.0070

冰川冻土 ›› 2014, Vol. 36 ›› Issue (3): 590-598.doi: 10.7522/j.issn.1000-0240.2014.0070

牧压梯度下高寒杂草类草甸土壤持水能力及影响因素分析

吴启华^1,3, 毛绍娟^1,3, 刘晓琴², 李红琴^1,4, 张法伟^1,4, 李英年^1,4

1. 中国科学院西北高原生物研究所, 青海西宁 810001;
2. 南开大学生命科学学院, 天津 300071;
3. 中国科学院大学, 北京 100049;
4. 中国科学院高原生物适应与进化重点实验室, 青海西宁 810001

收稿日期:2013-11-14 修回日期:2014-03-09 出版日期:2014-06-25 发布日期:2014-07-16
作者简介:吴启华（1987-），女，湖北咸宁人，2011年毕业于河南科技大学，现为硕士研究生，主要从事全球变化生态学研究.E-mail:wqh5859@126.com
基金资助:
中国科学院战略性先导科技专项（XDB03030502）；国家自然科学基金项目（31300385；31270523；31070437）；青海省自然科学基金项目（2014-Z-901）资助

Analysis of the soil water-holding capacity in alpine forb meadow under grazing gradient and relevant influence factors

WU Qihua^1,3, MAO Shaojuan^1,3, LIU Xiaoqin², LI Hongqin^1,4, ZHANG Fawei^1,4, LI Yingnian^1,4

1. Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China;
2. Collage of Life Sciences, Nankai University, Tianjin 300071, China;
3. University of Chinese Academy of Sciences, Beijing 100049, China;
4. Key Laboratory of Adaptation and Evolution of Plateau Biota, Chinese Academy of Sciences, Xining 810001, China

Received:2013-11-14 Revised:2014-03-09 Online:2014-06-25 Published:2014-07-16
Contact: 李英年，E-mail:ynli@nwipb.cas.cn E-mail:ynli@nwipb.cas.cn

摘要/Abstract

摘要： 以祁连山南麓坡地夏季牧场高寒杂草类草甸为研究对象，进行了封育对照（CK，禁牧）、轻度放牧（LG）、中度放牧（MG）和重度放牧（HG）下土壤持水能力及影响因素的分析. 结果表明：牧压梯度下0～10 cm层土壤最大持水量和毛管持水量均在LG最大，土壤自然贮水量LG略小于HG；而在10～20 cm和20～40 cm持水量均在HG最大，说明放牧对表层土壤的持水能力影响比深层更明显. 0～10 cm层土壤容重随牧压强度增加而增大，较深层次土壤容重基本一致，表明放牧对较深层土壤容重造成的影响远小于表层. 牧压梯度下植被地上地下生物量、枯落物、地表半腐殖质随放牧强度增大而减少；0～10 cm土壤有机质含量在MG最大，CK最小，10～20 cm和20～40 cm层土壤的有机质含量CK最大，说明不同土层有机质含量对牧压梯度的响应有所不同. 土壤持水量与多种因素有关，主要受到地下生物量、有机质和容重等因素的影响，表明随放牧强度增大，践踏使土壤表面硬度增加，土壤空隙度减少，同时家畜过度采食使地面植被覆盖降低而增加土壤水分的蒸发. 这些综合作用下引起放牧地土壤持水能力降低.

关键词: 高寒杂草类草甸, 牧压梯度, 土壤持水能力

Abstract: Soil water-holding capacities of the alpine forb meadow lying in the south slopes of the Qilian Mountains under different grazing intensities were analyzed. There are four grazing intensities, i.e., banning grazing (CK), light grazing (LG), moderate grazing (MG) and heavy grazing (HG). It is found that the maximal water-holding capacity and capillary water capacity are the maximum in LG, and natural water-holding capacity is the maximum in HG in the depth of 0-10 cm. Maximal water-holding capacity, capillary water capacity and natural water-holding capacity are the maximum in HG in the depth of 10-20 cm and 20-40 cm, indicating that the influence of grazing on soil water-holding is more evident in surface. Soil bulk density increases with grazing intensity in the depth of 0-10 cm, while in deeper layer the soil bulk density is almost the same, indicating that the impact of grazing intensity on soil bulk density in deeper layer is much less than at the surface. Biomass, litter and humus decreases with grazing intensity. Organic matter is the maximum in MG and minimum in CK in the depth of 0-10 cm, and the maximum in CK within the depth of 10-20 cm and 20-40 cm, indicating that the response of organic matter to grazing intensity in different layers is not same. Soil water-holding capacity is related to various factors and is mainly influenced by belowground biomass, organic matter and soil bulk density. Cattle's trample leads to hardness increasing, porosity and vegetation cover decreasing, resulting in soil water-holding capacity decreases with grazing intensity.

Key words: alpine forb meadow, grazing gradients, soil water-holding capacity

中图分类号:

S152.7+1

吴启华, 毛绍娟, 刘晓琴, 李红琴, 张法伟, 李英年. 牧压梯度下高寒杂草类草甸土壤持水能力及影响因素分析[J]. 冰川冻土, 2014, 36(3): 590-598.

WU Qihua, MAO Shaojuan, LIU Xiaoqin, LI Hongqin, ZHANG Fawei, LI Yingnian. Analysis of the soil water-holding capacity in alpine forb meadow under grazing gradient and relevant influence factors[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2014, 36(3): 590-598.

参考文献

[1] Chen Hongyue, Liu Qian, Kang Minming, et al. Water-holding capacity of litter and soil in different types of mixed forests for water conservation in Dongjiang drainage area[J]. Ecology and Environment, 2006, 15(4): 796-801. [陈红跃, 刘钱, 康敏明, 等. 东江水源林不同混交组合林地枯落物和土壤持水能力研究[J]. 生态环境, 2006, 15(4): 796-801.]
[2] Lin Lin, Jin Huijun, Luo Dongliang, et al. Preliminary study on major features of alpine vegetation in the source area of Yellow River[J]. Journal of Glaciology and Geocryology, 2014, 36(1): 230-236. [林琳, 金会军, 罗栋梁, 等. 黄河源区高寒植被主要特征初探[J]. 冰川冻土, 2014, 36(1): 230-236.]
[3] Wen Jing, Wang Yibo, Gao Zeyong, et al. Soil hydrological characteristics of the degrading meadow in permafrost regions in the Beiluhe basin[J]. Journal of Glaciology and Geocryology, 2013, 35(4): 929-937. [文晶, 王一博, 高泽永, 等. 北麓河流域多年冻土区退化草甸的土壤水文特征分析[J]. 冰川冻土, 2013, 35(4): 929-937.]
[4] Wang Junde, Wang Genxu, Chen Ling. Impact factors to soil moisture of alpine meadow and their spatial heterogeneity[J]. Journal of Glaciology and Geocryology, 2006, 28(3): 428-433. [王军德, 王根绪, 陈玲. 高寒草甸土壤水分的影响因子及其空间变异研究[J]. 冰川冻土, 2006, 28(3): 428-433.]
[5] Western A W, Grayson R B. Observed spatial organization of soil moisture and its relation to terrain indices[J]. Water Resources Research, 1998, 35(3): 797-810.
[6] Yue Guangyang, Zhao Lin, Zhao Yonghua, et al. Relationship between soil properties in permafrost active layer and surface vegetation in Xidatan on the Qinghai-Tibetan Plateau[J]. Journal of Glaciology and Geocryology, 2013, 35(3): 565-573. [岳广阳, 赵林, 赵拥华, 等. 青藏高原西大滩多年冻土活动层与地表植被的关系[J]. 冰川冻土, 2013, 35(3): 565-573.]
[7] Krzic M, Broersma K, Thompson D J, et al. Soil properties and species diversity of grazed crested wheatgrass and native rangelands[J]. Journal of Range Management, 2000, 53: 353-358.
[8] Xu Cui, Zhang Linbo, Du Jiaqiang, et al. Impact of alpine meadow degradation on soil water conservation in the source region of three rivers[J]. Acta Ecologica Sinica, 2013, 33(8): 2388-2399. [徐翠, 张林波, 杜加强, 等. 三江源区高寒草甸退化对土壤水源涵养功能的影响[J]. 生态学报, 2013, 33(8): 2388-2399.]
[9] Liu Xiaoqin, Wu Qihua, Li Hongqin, et al. A comparison of the vegetation/soil carbon density and net ecosystem CO₂exchange of alpine meadow with different enclosure durations[J]. Journal of Glaciology and Geocryology, 2013, 35(4): 848-856. [刘晓琴, 吴启华, 李红琴, 等. 不同封育年限高寒草甸植被/土壤碳密度及净生态系统CO₂交换量的比较[J]. 冰川冻土, 2013, 35(4): 848-856.]
[10] Xiong Yuanqing, Wu Pengfei, Zhang Hongzhi, et al. Dynamics of soil water conservation during the degradation process of the Zoigê alpine wetland[J]. Acta Ecologica Sinica, 2011, 31(19): 5780-5788. [熊远清, 吴鹏飞, 张洪芝, 等. 若尔盖湿地退化过程中土壤水源涵养功能[J]. 生态学报, 2011, 31(19): 5780-5788.]
[11] Li Yingnian, Zhao Xinquan, Cao Guangmin, et al.Analyses on climates and vegetation productivity background at Haibei Alpine Meadow Ecosystem Research Station[J]. Plateau Meteorology, 2004, 23(4): 558-567. [李英年, 赵新全, 曹广民, 等. 海北高寒草甸生态系统定位站气候、植被生产力背景的分析[J]. 高原气象, 2004, 23(4): 558-567.]
[12] Zhou Xingmin, Wu Zhenlan. Vegetation and Plant Keys of Haibei Alpine Meadow Ecosystem Research Station, Chinese Academy of Sciences[M]. Xining: Qinghai People's Publishing House, 2006: 31-39. [周兴民, 吴珍兰. 中国科学院海北高寒草甸生态系统定位站植被与植物检索表[M]. 西宁: 青海人民出版社, 2006: 31-39.]
[13] Zhao Xinquan. The Alpine Meadow Ecosystem and Global Change[M]. Beijing: Science Press, 2009: 56-62. [赵新全. 高寒草甸生态系统与全球变化[M]. 北京: 科学出版社, 2009: 56-62.]
[14] Professional Committee of China Agricultural Chemistry of Soil Science Society. Conventional Analysis Methods of Soil Agricultural Chemistry[M]. Beijing: China Agriculture Press, 1984: 87-91. [中国土壤学会农业化学专业委员会. 土壤农业化学常规分析方法[M]. 北京: 中国农业出版社, 1984: 87-91.]
[15] Huang Changyong. Soil Science[M]. Beijing: China Agriculture Press, 1999: 101-103. [黄昌勇. 土壤学[M]. 北京: 中国农业出版社, 1999: 101-103.]
[16] Zhou Zefu, Li Changzhe. Study on soil moisture characteristics of different forest vegetations in Jiulongshan, Beijing[J]. Forest Research, 1994, 7(1): 48-53. [周择福, 李昌哲. 北京九龙山不同植被土壤水分特征研究[J]. 林业科学研究, 1994, 7(1): 48-53.]
[17] Li Zhaoqing, Zhou Yi, Peng Hongyu, et al. Soil moisture physical characteristics of five forest types in Jiaoling Changtan Provincial Natural Reserve[J]. Guangdong Forestry Science and Technology, 2009, 25(6): 70-75. [李召青, 周毅, 彭红玉, 等. 蕉岭长潭省级自然保护区不同林分类型土壤水分物理性质研究[J]. 广东林业科技, 2009, 25(6): 70-75.]
[18] Mara B V, Nilda M A, Norman P. Soil degradation related to overgrazing in the semiarid southern Caldenal area of Argentina[J]. Soil Science, 2001, 166(7): 441-452.
[19] Shi Yonghong, Han Jianguo, Shao Xinqing, et al. Effects of dairy cows grazing on soil physical and chemical properties of alfalfa-grass pasture in agro-pastoral transitional zone of North China[J]. Chinese Journal of Grassland, 2007, 29(1): 24-30. [石永红, 韩建国, 邵新庆, 等. 奶牛放牧对人工草地土壤理化特性的影响[J]. 中国草地学报, 2007, 29(1): 24-30.]
[20] Li Yonghong, Wang Shiping. Response of plant and plant community to different stocking rates[J]. Grassland of China, 1999(3): 11-19. [李永宏, 汪诗平. 放牧对草原植物的影响[J]. 中国草地, 1999(3): 11-19.]
[21] Lin Huilong, Hou Fujiang, Li Fei. Response of underground biomass to grazing trampling in steppe grassland of Huanxian County, Gansu Province, Northwestern China[J]. Acta Agrestia Sinica, 2008, 16(2): 186-190. [林慧龙, 侯扶江, 李飞. 家畜践踏对环县草原地下生物量的影响[J]. 草地学报, 2008, 16(2): 186-190.]
[22] Wan Liqiang, Chen Weiwei, Li Xianglin, et al. Effects of grazing on soil moisture, bulk and pasture underground biomass[J]. Chinese Agricultural Science Bulletin, 2011, 27(26): 25-29. [万里强, 陈玮玮, 李向林, 等. 放牧对草地土壤含水量与容重及地下生物量的影响[J]. 中国农学通报, 2011, 27(26): 25-29.]
[23] Dong Quanmin, Zhao Xinquan, Ma Yushou, et al. Regressive analysis between stocking rate for yak and aboveground and underground biomass of warm-season pasture in Kobrecia parva alpine meadow[J]. Pratacultural Science, 2005, 22(5): 65-71. [董全民, 赵新全, 马玉寿, 等. 牦牛放牧率与小嵩草高寒草甸暖季草地地上、地下生物量相关分析[J]. 草业科学, 2005, 22(5): 65-71.]
[24] Liu Guohua, Fu Bojie, Wu Gang, et al. Soil organic carbon pool and its spatial distribution pattern in the Circum Bohai Region[J]. Chinese Journal of Applied Ecology, 2003, 14(9): 1489-1493. [刘国华, 傅伯杰, 吴钢, 等. 环渤海地区土壤有机碳库及其空间分布格局的研究[J]. 应用生态学报, 2003, 14(9): 1489-1493.]
[25] Li Shuhui, Zhang Dongwei. Influence of grazing on soil properties in America[J]. Scientific and Technical Information of Soil and Water Conservation, 2003(1): 8-9. [李树会, 张东为. 美国有关放牧对土壤性质影响的研究[J]. 水土保持科技情报, 2003(1): 8-9.]
[26] Greenwood P B, McNamara R M. An analysis of the physical condition of two intensively grazed Southland soils[J]. Proceedings of the New Zealand Grassland Association, 1992, 54: 71-75.
[27] Seitlheko E M, Allen B L, Wester D B. Effect of three grazing intensities on selected soil properties in semi-arid west Texas[J]. Africa Journal of Range Forage Science, 1993, 10(2): 82-85.
[28] Zhang Yunwei, Han Jianguo, Li Zhiqiang. A study of the effects of different grazing intensities on soil physical properties[J]. Acta Agrestia Sinica, 2002, 10(1): 74-78. [张蕴薇, 韩建国, 李志强. 放牧强度对土壤物理性质的影响[J]. 草地学报, 2002, 10(1): 74-78.]
[29] Nemes A, Rawls W. Evaluation of different representations of the particle-size distribution to predict soil water retention[J]. Geoderma, 2006, 132(1/2): 47-58.
[30] Pachepsky Y, Rawls W, Guber A. Soil aggregates and water retention[J]. Developments in Soil Science, 2004, 30(8): 143-150.
[31] Yi Xiangsheng, Li Guosheng, Yin Yanyu, et al. Preliminary study for the influences of grassland degradation on soil water retention in the source region of the Yellow River[J]. Journal of Natural Resources, 2012, 27(10): 1708-1719. [易湘生, 李国胜, 尹衍雨, 等. 黄河源区草地退化对土壤持水性影响的初步研究[J]. 自然资源学报, 2012, 27(10): 1708-1719.]
[32] Li Hongqin, Li Yingnian, Zhang Fawei, et al. Variations of production and water use efficiency of the vegetation in alpine meadow[J]. Journal of Glaciology and Geocryology, 2013, 35(2): 475-482. [李红琴, 李英年, 张法伟, 等. 高寒草甸植被生产量年际变化及水分利用率状况[J]. 冰川冻土, 2013, 35(2): 475-482.]

牧压梯度下高寒杂草类草甸土壤持水能力及影响因素分析

Analysis of the soil water-holding capacity in alpine forb meadow under grazing gradient and relevant influence factors

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