官司河流域不同林分枯落物水源涵养与土壤磁化率

doi:10.16036/j.issn.1000-2650.2018.05.010

摘要/Abstract

摘要： 【目的】寻找森林生态系统枯落物层水源涵养功能快速评价的新方法。【方法】选择绵阳官司河流域柏木林、马尾松林、麻栎林、松柏混交林作为研究对象,在野外样地调查及室内处理的基础上,分析不同林分林下枯落物水源涵养功能及其与土壤磁化率的关系。【结果】4种林分林下枯落物储量依次为麻栎林(7.77 t/hm²)>松柏混交林(5.40 t/hm²)>柏木林(4.43 t/hm²)>马尾松林(4.03 t/hm²);林下枯落物最大持水量依次为麻栎林(30.26 t/hm²)>松柏混交林(19.85 t/hm²)>柏木林(18.14 t/hm²)>马尾松林(14.62 t/hm²);单位质量枯落物最大持水量依次为麻栎林(3 094.17 g/kg)>柏木林(3 084.17 g/kg)>松柏混交林(2 633.13 g/kg)>马尾松林(2 622.50 g/kg);4种林分林下枯落物持水量与浸水时间关系满足Q=a ln t+b,林下枯落物吸水速率与浸水时间关系满足S=K tⁿ;林下枯落物储量与土壤磁化率关系满足W_L= 0.384 M_S-4.012 2(R²=0.988 8);林下枯落物最大持水量与土壤磁化率关系满足Q=1.518 7 M_S-16.539(R²=0.960 9)。【结论】土壤磁化率可以反映官司河流域不同林分枯落物储量及最大持水量,土壤磁化率越大,对应林分类型枯落物储量及持水量越大,可以指示该森林生态系统枯落物水源涵养功能越强。

关键词: 水源涵养, 土壤磁化率, 枯落物, 官司河流域

Abstract: 【Objective】 The aim of the study was to find a new method for rapid evaluation of water conservation function of litter layer in forest ecosystem. 【Method】 Four plantations,including Cupressus funebris,Pinus massoniana,Quercus acutissima and pine-cypress mixed forest in the Guansi River Watershed of Mianyang City were selected. The relationships between soil magnetic susceptibility and water conservation function of litter layer in the forest stands were analyzed based on field investigation and lab analysis. 【Result】 The order of litter stock was Q. acutissima forest(7.77 t/hm²)>pine-cypress mixed forest(5.40 t/hm²)>cypress forest(4.43 t/hm²)>P. massoniana forest(4.03 t/hm²). The maximum water-holding capacity of litter layer was Q. acutissima forest(30.26 t/hm²)>pine-cypress mixed forest (19.85 t/hm²)>cypress forest(18.14 t/hm²)>P. massoniana forest(14.62 t/hm²). The order of maximum water-holding capacity of litter per unit mass was Q. acutissima forest(3 094.17 g/kg)>cypress forest (3 084.17 g/kg)>pine-cypress mixed forest(2 633.13 g/kg)>P. massoniana forest(2 622.50 g/kg). The relationship between water-holding capacity of litter and soaking time in four forest types was estimated as Q=a ln t+b and the relationship between water absorption rate of litter and soaking time was calculated as S=Ktⁿ. The relationship between litter reserves and soil magnetic susceptibility was modeled as W_L=0.384 M_S-4.012 2(R²=0.988 8) and the relationship between maximum water-holding capacity of litter and soil magnetic susceptibility was quantified as Q=1.518 7 M_S-16.539(R²= 0.960 9). 【Conclusion】 Soil magnetic susceptibility reflects the litter reserves and maximum water-holding capacity of different forest types in the Guansi River Watershed. The higher the soil magnetic susceptibility,the greater the litter reserves and water-holding capacity of the corresponding forest types,indicating that the water conservation function of litter layer is stronger in the corresponding forest ecosystem.

Key words: water conservation, soil magnetic susceptibility, litter, Guansi River Watershed

中图分类号:

S715

冯宇, 彭培好, 刘贤安, 韩子钧, 庞溯. 官司河流域不同林分枯落物水源涵养与土壤磁化率[J]. 四川农业大学学报, 2018, 36(05): 633-639.

FENG Yu, PENG Peihao, LIU Xianan, HAN Zijun, PANG Su. Water Conservation of Forest Litter and Soil Magnetic Susceptibility in Different Forest Types of Guansi River Watershed[J]. Journal of Sichuan Agricultural University, 2018, 36(05): 633-639.

参考文献 30

[1]	莫菲, 李叙勇, 贺淑霞, 等. 东灵山林区不同森林植被水源涵养功能评价[J]. 生态学报, 2011, 31(17): 5009-5016.
[2]	贺淑霞, 李叙勇, 莫菲, 等. 中国东部森林样带典型森林水源涵养功能[J]. 生态学报, 2011, 31(12): 3285-3295.
[3]	张振明, 余新晓, 牛健植, 等. 不同林分枯落物层的水文生态功能[J]. 水土保持学报, 2005, 19(3): 139-143.
[4]	HENIN S, LE BORGNE.On the Magnetic Properties of Soils and Their Pedological Interpretation[C], Leopoldville: 5th Int. Congr. Soil Sci., 1954.
[5]	LIU L, ZHANG Z D, ZHANG K L, et al.Magnetic susce-ptibility characteristics of surface soils in the Xilingele grassland and their implication for soil redistribution in wind-dominated landscapes: a preliminary study[J]. Catena, 2018, 163: 33-41.
[6]	GRIMLEY D A,ARRUDA N K, BRAMSTEDT M W.Using magnetic susceptibility to facilitate more rapid, reproducible and precise delineation of hydric soils in the midwestern USA[J]. Catena, 2004, 58(2): 183-213.
[7]	NAZAROK P, KRUGLOV O, MENSHOV O, et al.Mapping soil erosion using magnetic susceptibility. A case study in Ukraine[J]. Solid Earth Discussions, 2014, 6(1): 831-848.
[8]	JORDANOVA D, JORDANOVA N, PETROV P.Pattern of cum-ulative soil erosion and redistribution pinpointed through magnetic signature of Chernozem soils[J]. Catena, 2014, 120(1):46-56.
[9]	LIU L, ZHANG K, ZHANG Z, et al.Identifying soil redistribution patterns by magnetic susceptibility on the black soil farmland in Northeast China[J]. Catena, 2015, 129: 103-111.
[10]	ASGARI N, AYOUBI S, DEMATTE J A M. Soil drainage assessment by magnetic susceptibility measures in western Iran[J]. Geoderma Regional, 2018, 13: 35-42.
[11]	KRZYWICKA A E, POCIASK G E, GRIMLEY D A, et al.Hydrology and soil magnetic susceptibility as predictors of planted tree survival in a restored floodplain forest[J]. Ecological Engineering, 2017, 103: 275-287.
[12]	JAROSLAW ZAWADZKI, PIOTR FABIJANCZYK, TADUSZ MAGIERA.The influence of forest stand and organic horizon development on soil surface measurement of magnetic susceptibility[J]. Polish Journal of Soil Science, 2007, 40(2): 113-124.
[13]	JAROSLAW ZAWADZKI, PIOTR FABIJANCZYK, MAGIERA T, et al.Study of litter influence on magnetic susceptibility measurements of urban forest topsoils using the MS2D sensor[J]. Environmental Earth Sciences, 2010, 61(2): 223-230.
[14]	WANG J S, GRIMLEY D A, XU C, et al.Soil magnetic susceptibility reflects soil moisture regimes and the adaptability of tree species to these regimes[J]. Forest Ecology & Management,2008, 255(5): 1664-1673.
[15]	陈俊华, 龚固堂, 朱志芳,等. 官司河流域防护林景观结构及生态功能研究[J]. 生态环境学报, 2010, 19(3): 712-717.
[16]	唐素贤, 郑江坤, 蒲晓君, 等. 官司河流域7种林分枯落物及土壤层水文效应[J]. 东北林业大学学报, 2014, 42(10): 50-53.
[17]	陈俊华, 慕长龙, 龚固堂,等. 官司河流域防护林结构调整及景观格局变化[J]. 山地学报, 2010, 28(1): 85-95.
[18]	方精云, 王襄平, 沈泽昊, 等. 植物群落清查的主要内容、方法和技术规范[J]. 生物多样性, 2009, 17(6): 533-548.
[19]	张卫强, 李召青, 周平,等. 东江中上游主要森林类型枯落物的持水特性[J]. 水土保持学报, 2010, 24(5): 130-134.
[20]	袁秀锦, 王晓荣, 潘磊, 等. 三峡库区不同类型马尾松林枯落物层持水特性比较[J]. 水土保持学报, 2018, 32(3): 160-166.
[21]	陈波, 孟成生, 赵耀新, 等. 冀北山地不同海拔华北落叶松人工林枯落物和土壤水文效应[J]. 水土保持学报, 2012, 26(3): 216-221.
[22]	陈波, 杨新兵, 赵心苗, 等. 冀北山地6种天然纯林枯落物及土壤水文效应[J]. 水土保持学报, 2012, 26(2): 196-202.
[23]	孙一荣, 朱教君, 于立忠, 等. 森林枯落物的水源涵养功能[C]. 武汉: 中国环境科学学会2009年学术年会. 2009.
[24]	胡国庆, 董元杰, 邱现奎, 等. 鲁中山区小流域坡面土壤侵蚀的磁性示踪法研究[J]. 水土保持学报, 2010, 24(5): 169-173.
[25]	王金锡. 长江中上游防护林体系生态效益监测与评价[M]. 成都: 四川科学技术出版社, 2006: 243.
[26]	周娟, 陈丽华,郭文体,等. 大辽河流域水源涵养林枯落物持水特性研究[J]. 水土保持通报,2013,33(4):136-141.
[27]	张卫强, 李召青, 周平, 等. 东江中上游主要森林类型枯落物的持水特性[J]. 水土保持学报, 2010, 24(5): 130-134.
[28]	张建利, 王加国, 李苇洁, 等. 贵州百里杜鹃自然保护区杜鹃林枯落物储量及持水功能[J]. 水土保持学报, 2018, 32(3): 167-173.
[29]	韩路, 王海珍, 吕瑞恒, 等. 塔里木河上游不同森林类型枯落物的持水特性[J]. 水土保持学报, 2014, 28(1): 96-101.
[30]	张峰, 彭祚登, 安永兴, 等. 北京西山主要造林树种林下枯落物的持水特性[J]. 林业科学, 2010, 46(10): 6-14.