三江源地区草地退化对土壤含水量的影响

吴丹; 曹巍; 邵全琴; 赵志平

doi:10.3969/j.issn.1000-2006.201708008

三江源地区草地退化对土壤含水量的影响

吴丹,曹巍,邵全琴,赵志平

南京林业大学学报（自然科学版） ›› 2018, Vol. 42 ›› Issue (03) : 182-186.

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南京林业大学学报（自然科学版） ›› 2018, Vol. 42 ›› Issue (03) : 182-186. DOI: 10.3969/j.issn.1000-2006.201708008

研究简报

三江源地区草地退化对土壤含水量的影响

吴丹¹,曹巍²,邵全琴^2*,赵志平³

作者信息 +

Influences of grassland degradation on soil saturated moisture content in the Three-River Headwaters Region

WU Dan¹, CAO Wei², SHAO Quanqin^2*, ZHAO Zhiping³

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摘要

【目的】研究草地退化对青海三江源地区土壤含水量的影响,为草地生态系统的综合监测与评估提供科学参考。【方法】根据遥感解译数据,得到20世纪70年代以来三江源地区草地退化的时空特征,结合不同土壤类型、不同退化等级下的孔隙度实测数据,利用空间分布替代时间演替的方法得到不同时段土壤饱和含水量的时空变化,分析该区草地退化与土壤饱和含水量的关联程度。【结果】20世纪70年代中后期至2004年,三江源地区草地退化现象持续发生; 2004—2012年,该区草地得到了一定程度的恢复。20世纪70年代中后期至2004年,三江源地区草地土壤饱和含水量减少了45.58亿m³; 2004—2012年,草地土壤饱和含水量减少了1.50亿m³。【结论】尽管草地退化情况略有减轻,但草地土壤饱和含水量表现出持续减少的现象。植被退化是三江源地区土壤退化的直接原因,由其引起土壤理化性状的改变,进而影响土壤持水性。

Abstract

Abstract: 【Objective】Influences of grassland degradation on soil saturated moisture content in the Three-River Headwaters Region, Qinghai Province, could provide certain scientific reference for comprehensive monitoring and assessment of grassland ecosystem.【Method】Based on remote sensing data, we analyzed the temporal and spatial characteristics of grassland degradation since the middle and late 1970s. According to the measured porosity data for different soil types and different degradation grades, we analyzed the temporal and spatial variation of saturated moisture content of grassland soil in order to analyze their relational degree.【Result】Grassland degradation occurred continually from the middle and late 1970s to 2004. In contrast, the degraded grasslands exhibited a degree of recovery from 2004 to 2012. The saturated moisture content of grassland soil decreased by 4.558 billion m³ and 0.150 billion m³ in these two periods, respectively.【Conclusion】Although the degraded grassland had shown a slight recovery since 2004, the saturated moisture content of grassland soil showed a declining phenomenon. Vegetation degeneration was the direct cause of soil degradation in the study area. Such degeneration could change the soil physical and chemical properties, further affecting soil water retention in grassland ecosystem.

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吴丹,曹巍,邵全琴,赵志平. 三江源地区草地退化对土壤含水量的影响[J]. 南京林业大学学报（自然科学版）. 2018, 42(03): 182-186 https://doi.org/10.3969/j.issn.1000-2006.201708008

WU Dan, CAO Wei, SHAO Quanqin, ZHAO Zhiping. Influences of grassland degradation on soil saturated moisture content in the Three-River Headwaters Region[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2018, 42(03): 182-186 https://doi.org/10.3969/j.issn.1000-2006.201708008

中图分类号： S812.2 S715

参考文献

[1] KAY B D, APDA S, BALDOCK J A. Sensitivity of soil structure to changes in organic carbon content: predictions using pedotransfer functions [J]. Canadian Journal of Soil Science, 1997, 77(4): 655-667. DOI: 10.4141/S96-094.
[2] 李绍良, 陈有君, 关世英, 等. 土壤退化与草地退化关系的研究 [J]. 干旱区资源与环境, 2002, 16(1): 92-95. DOI: 10.13448/j.cnki.jalre.2002.01.016. LI S L, CHEN Y J, GUAN S Y, et al. Relationships between soil degradation and rangeland degradation [J]. Journal of Arid Land Resources and Environment, 2002, 16(1): 92-95.
[3] 王根绪, 沈永平, 钱鞠, 等. 高寒草地植被覆盖变化对土壤水分循环影响研究 [J]. 冰川冻土, 2003, 25(6): 653-659. DOI: 10.3969/j.issn.1000-0240.2003.06.010. WANG G X, SHEN Y P, QIAN J, et al. Study on the influence of vegetation change on soil moisture cycle in Alpine Meadow [J]. Journal of Glaciology and Geocryology, 2003, 25(6): 653-659.
[4] 王一博, 王根绪, 吴青柏, 等. 植被退化对高寒土壤水文特征的影响 [J]. 冰川冻土, 2010, 32(5): 989-998. WANG Y B, WANG G X, WU Q B, et al. The impact of vegetation degeneration on hydrology features of alpine soil [J]. Journal of Glaciology and Geocryology, 2010, 32(5): 989-998.
[5] 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. DOI: 10.5846/stxb201210181449. XU C, ZHANG L B, DU J Q, 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.
[6] FOSTER B L, TILMAN D. Dynamic and static views of succession: testing the descriptive power of the chronosequence approach [J]. Plant Ecology, 1999, 146(1): 1-10. DOI: 10.1023/A:1009895103017.
[7] LIAO J D, BOUTTON T W, JASTROW J D. Storage and dynamics of carbon and nitrogen in soil physical fractions following woody plant invasion of grassland [J]. Soil Biology & Biochemistry, 2006, 38(11): 3184-3196. DOI: 10.1016/j.soilbio.2006.04.003.
[8] 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. DOI: 10.11849/zrzyxb.2012.10.009. YI X S, LI G S, YIN Y Y, 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.
[9] 刘纪远, 徐新良, 邵全琴. 近30年来青海三江源地区草地退化的时空特征 [J]. 地理学报, 2008, 63(4): 364-376. DOI: 10.3321/j.issn:0375-5444.2008.04.006. LIU J Y, XU X L, SHAO Q Q. The spatial and temporal characteristics of grassland degradation in the Three-River Headwaters Region in Qinghai Province [J]. Acta Geographica Sinica, 2008, 63(4): 364-376.
[10] 吴志丰, 李芬, 张林波, 等. 三江源区草地参照覆盖度提取及草地退化研究 [J]. 自然灾害学报, 2014, 23(2): 94-102. DOI: 10.13577/j.jnd.2014.0213. WU Z F, LI F, ZHANG L B, et al. Research on grassland degradation of Three-River Headwaters Region based on reference vegetation coverage [J]. Journal of Natural Disasters, 2014, 23(2): 94-102.
[11] 董锁成, 周长进, 王海英. “三江源”地区主要生态环境问题与对策 [J]. 自然资源学报, 2002, 17(6): 713-720. DOI: 10.3321/j.issn:1000-3037.2002.06.009. DONG S C, ZHOU C J, WANG H Y. Ecological crisis and countermeasures of the Three Rivers' Headstream Regions [J]. Journal of Natural Resources, 2002, 17(6): 713-720.
[12] 刘敏超, 李迪强, 温琰茂. 论三江源自然保护区生物多样性保护 [J]. 干旱区资源与环境, 2005, 19(4): 49-53. DOI: 10.3969/j.issn.1003-7578.2005.04.010. LIU M C, LI D Q, WEN Y M. The protection of biological diversity in the Sanjiangyuan Nature Reserve [J]. Journal of Arid Land Resources and Environment, 2005, 19(4): 49-53.
[13] 韦晶, 郭亚敏, 孙林, 等. 三江源地区生态环境脆弱性评价 [J]. 生态学杂志, 2015, 34(7): 1968-1975. DOI: 10.13292/j.1000-4890.20150615.007. WEI J, GUO Y M, SUN L, et al. Evaluation of ecological environment vulnerability for Sanjiangyuan area [J]. Chinese Journal of Ecology, 2015, 34(7): 1968-1975.
[14] 周华坤, 赵新全, 周立, 等. 层次分析法在江河源区高寒草地退化研究中的应用 [J]. 资源科学, 2005, 27(4): 63-70. DOI: 10.3321/j.issn:1007-7588.2005.04.012. ZHOU H K, ZHAO X Q, ZHOU L, et al. Application of analytic hierarchy process on the alpine grassland degradation in the Source Region of the Yangtze and Yellow Rivers [J]. Resources Science, 2005, 27(4): 63-70.
[15] 赵新全, 周华坤. 三江源区生态环境退化、恢复治理及其可持续发展 [J]. 中国科学院院刊, 2005, 20(6): 471-476. DOI: 10.16418/j.issn.1000-3045.2005.06.008. ZHAO X Q,ZHOU H K. Ecoenvironmental degradation, vegetation regeneration and sustainable development in the Headwaters of Three Rivers on Tibetan Plateau [J]. Bulletin of the Chinese Academy of Sciences, 2005, 20(6): 471-476.
[16] FAN J W, SHAO Q Q, LIU J Y, et al. Assessment of effects of climate change and grazing activity on grassland yield in the Three Rivers Headwaters Region of Qinghai-Tibet Plateau, China [J]. Environmental Monitoring & Assessment, 2010, 170(1-4): 571-84. DOI: 10.1007/s10661-009-1258-1.
[17] 魏强, 王芳, 陈文业, 等. 黄河上游玛曲不同退化程度高寒草地土壤物理特性研究 [J]. 水土保持通报, 2010, 30(5): 16-21. DOI: 10.13961/j.cnki.stbctb.2010.05.044. WEI Q, WANG F, CHEN W Y, et al. Soil physical characteristics on different degraded alpine grasslands in Maqu County in upper Yellow River [J]. Bulletin of Soil and Water Conservation, 2010, 30(5): 16-21.
[18] 韩路, 王海珍, 于军. 塔里木河上游不同植被类型土壤水文特性研究 [J]. 水土保持学报, 2013, 27(6): 124-129. DOI: 10.13870/j.cnki.stbcxb.2013.06.051. HAN L, WANG H Z, YU J. Soil hydrological characteristics of different vegetation types in the upper reaches of Tarim River [J]. Journal of Soil and Water Conservation, 2013, 27(6): 124-129.