Spatiotemporal Heterogeneity of Soil Water Content at Different Size of Gaps of Pinus koraiensis-Dominated Broadleaved Mixed Forest

DUAN Wen-biao; FENG Jing; CHEN Li-xin

Volume 25 Issue 3

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Spatiotemporal Heterogeneity of Soil Water Content at Different Size of Gaps of Pinus koraiensis-Dominated Broadleaved Mixed Forest

1.
College of Forestry, Northeast Forestry University, Harbin 150040, Heilongjiang, China

Received Date: 2011-09-28

Abstract

Sampling plots were established by the method of grids in a forest gap and closed forest of Pinus koraiensis-dominated broadleaved mixed forests in Xiaoxing’anling Mountains, the volumetric soil water content (SWC) in I~III soil layers in medium and small gaps was measured by using time domain reflectometry 200 (TDR 200) during the period of July and September, 2010. The basic characteristics of SWC in each soil layer and the difference in SWC among various sampling locations in the same gap were analyzed by traditional statistics and geostatistical methods, Kriging interpolating was performed and the spatial distribution maps of SWC were drawn by using surfer 8.0 software, the spatiotemporal heterogeneity of SWC in the gaps was analyzed. The aim of this study was to provide the theoretical basis and data support for further studies on soil physical properties, gap regeneration and sustainable management of Pinus koraiensis-dominated broadleaved mixed forest. The results showed that SWC in I~III soil layers in medium and small gaps fell into moderate variation. With increased soil depth, the SWC and patch connection degree increased. The maximum SWC occurred in the area in and around gap center, and this area expanded and approached to the gap center with increased soil depth. However, the minimum SWC appeared within the expanded gaps and closed forest. For medium and small gaps, the difference in SWC in layer II among respective gap center and its edge was larger than that in layer I and layer III. Between July and September, the mean SWC exhibited single-peak variation, larger in medium gap than in small gap, the maximum appeared in August. The SWC in layer I and II in September decreased substantially than that in August, but there was slightly variation in layer III in September as compared with that in August.
- Xiaoxing’anling Mountains,
- Pinus koraiensis-dominated broadleaved mixed forest,
- forest gap,
- soil water content,
- spatiotemporal heterogeneity

References

[1]	Runkle J R . Gap regeneration in some old-growth forests of the eastern United States[J].Ecology,1981,62:1041-1051
[2]	Runkle J R . Patterns of disturbance in some old-growth mesic forests of eastern North America[J]. Ecology, 1982, 63:1533-1546
[3]	姚庆端. 不同杉木混交模式土壤肥力及土壤蓄水量研究[J].福建林学院学报,1996,16(3):282-286
[4]	Noble P S. Root distribution and seasonal production in the north-western Sonaran Desert for a C₃ shrub, a C₄ bunchgrass and a CAM leaf succulent[J]. American Journal Crop of Botany, 1997, 84:949-955
[5]	何其华,何永华,包维楷. 干旱半干旱区山地土壤含水量动态变化[J].山地学报,2003, 21(2): 149-156
[6]	宋新章,肖文发. 林隙微生境及更新研究进展[J]. 林业科学,2005,42(5):114-119
[7]	臧润国,刘静艳,董大方. 林隙动态与森林生物多样性[M].北京:中国林业出版社,1999
[8]	Canham C D. Different responses to gaps among shade-tolerant tree species[J]. Ecology, 1989, 70:548-550
[9]	Gray A N, Spies T A, Easter M J. Microclimatic and soil moisture responses to gap formation in coastal Douglas-fir forests[J]. Canadian Journal of Forest Research, 2002, 32(2):332-343
[10]	Guo D, Mou P, Jones R H, et al. Temporal changes in spatial patterns of soil moisture following disturbance: an experimental approach[J]. Journal of Ecology, 2002, 90,338-347
[11]	Raymond P, Munson A D, Ruel J C, et al. Spatial patterns of soil microclimate, light, regeneration, and growth within silvicultural gaps of mixed tolerant hardwood-white pine stands[J]. Canadian Journal of Forest Research, 2006, 36(3):639-651
[12]	Laszlo G, Barbara M, Andrea H, et al. Effects of gap size and associated changes in light and soil moisture on the understory vegetation of a Hungarian beech forest[J]. Plant Ecology, 2006, 183:133-145
[13]	李猛,段文标,陈立新. 红松阔叶混交林林隙光量子通量密度的时空分布格局[J].应用生态学报, 2011,22(4):880-884
[14]	王政权. 地统计学及在生态上的应用[M].北京:科学出版社,1999:109-133
[15]	Cambardella C A, Moorman A T, Novak J M, et al. Field scale variability of soil properties in central Iowa Soils[J].Soil Science Society of America Journal, 1994, 58(5):1501-1511
[16]	李海滨,林忠辉,刘苏峡. Kriging方法在区域土壤含水量估值中的应用[J].地理研究,2001,20(4):446-452
[17]	李岩,段文标,陈立新,等. 阔叶红松林林隙地面温度微环境变异特征[J].中国水土保持科学,2007,5(2):81-85
[18]	杨秀虹,李适宇. 地统计学方法在环境污染研究中的应用[J].中山大学学报:自然科学版,2005,44(3):97-101
[19]	杨秀云,韩有志,宁鹏,等. 采伐干扰对华北落叶松林下土壤含水量、pH和全氮空间变异的影响[J].土壤学报,2011,48(2):356-365
[20]	李毅,邵明安. 雨强对黄土坡面土壤水分入渗及再分布的影响[J].应用生态学报,2006,17(12):2271-2276
[21]	徐文铎,何兴元,陈玮,等. 长白山植被类型特征与演替规律的研究[J].生态学杂志, 2004,23(5): 162-174
[22]	石培礼,李文华. 森林植被变化对水文过程和径流的影响效应[J].自然资源学报,2002,16(5):481-487
[23]	高红,张斌,粟建荣,等. 林隙更新及其空间环境异质性研究进展[J].四川林勘设计,2011,3(9):24-29
[24]	Ritter E, Dalsgaard L, Einhorn K S. Light, temperature and soil moisture regimes following gap formation in a semi-natural beech-dominated forest in Denmark[J]. Forest Ecology and Management, 2005, 206:15-33
[25]	Clinton B D. Light, temperature, and soil moisture responses to elevation, evergreen understory, and small canopy gaps in the southern Appalachians[J]. Forest Ecology and Management,2003,186:243-255
[26]	Ochiai Y, Okuda S, Sato A.The influence of canopy gap size on soil water conditions in a deciduous broad-leaved secondary forest in Japan[J]. Journal of the Japanese Forestry Society, 1994, 76(4): 308-314
[27]	韩胜利. 大青山油松人工林地土壤含水量特征研究 .呼和浩特:内蒙古农业大学森林培育学科,2006
[28]	林希昊,陈秋波,华元刚,等. 不同树龄橡胶林土壤含水量和细根生物量[J].应用生态学报,2011,22(2): 331-336
[29]	段文标. 阔叶红松林林隙土壤水分微环境变异特征分析[J].自然资源学报,2009,24(5):809-815

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Spatiotemporal Heterogeneity of Soil Water Content at Different Size of Gaps of Pinus koraiensis-Dominated Broadleaved Mixed Forest

1. College of Forestry, Northeast Forestry University, Harbin 150040, Heilongjiang, China

Received Date: 2011-09-28

Available Online: 2012-06-13

Abstract: Sampling plots were established by the method of grids in a forest gap and closed forest of Pinus koraiensis-dominated broadleaved mixed forests in Xiaoxing’anling Mountains, the volumetric soil water content (SWC) in I~III soil layers in medium and small gaps was measured by using time domain reflectometry 200 (TDR 200) during the period of July and September, 2010. The basic characteristics of SWC in each soil layer and the difference in SWC among various sampling locations in the same gap were analyzed by traditional statistics and geostatistical methods, Kriging interpolating was performed and the spatial distribution maps of SWC were drawn by using surfer 8.0 software, the spatiotemporal heterogeneity of SWC in the gaps was analyzed. The aim of this study was to provide the theoretical basis and data support for further studies on soil physical properties, gap regeneration and sustainable management of Pinus koraiensis-dominated broadleaved mixed forest. The results showed that SWC in I~III soil layers in medium and small gaps fell into moderate variation. With increased soil depth, the SWC and patch connection degree increased. The maximum SWC occurred in the area in and around gap center, and this area expanded and approached to the gap center with increased soil depth. However, the minimum SWC appeared within the expanded gaps and closed forest. For medium and small gaps, the difference in SWC in layer II among respective gap center and its edge was larger than that in layer I and layer III. Between July and September, the mean SWC exhibited single-peak variation, larger in medium gap than in small gap, the maximum appeared in August. The SWC in layer I and II in September decreased substantially than that in August, but there was slightly variation in layer III in September as compared with that in August.

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Reference (29)

[1]	Runkle J R . Gap regeneration in some old-growth forests of the eastern United States[J].Ecology,1981,62:1041-1051
[2]	Runkle J R . Patterns of disturbance in some old-growth mesic forests of eastern North America[J]. Ecology, 1982, 63:1533-1546
[3]	姚庆端. 不同杉木混交模式土壤肥力及土壤蓄水量研究[J].福建林学院学报,1996,16(3):282-286
[4]	Noble P S. Root distribution and seasonal production in the north-western Sonaran Desert for a C₃ shrub, a C₄ bunchgrass and a CAM leaf succulent[J]. American Journal Crop of Botany, 1997, 84:949-955
[5]	何其华,何永华,包维楷. 干旱半干旱区山地土壤含水量动态变化[J].山地学报,2003, 21(2): 149-156
[6]	宋新章,肖文发. 林隙微生境及更新研究进展[J]. 林业科学,2005,42(5):114-119
[7]	臧润国,刘静艳,董大方. 林隙动态与森林生物多样性[M].北京:中国林业出版社,1999
[8]	Canham C D. Different responses to gaps among shade-tolerant tree species[J]. Ecology, 1989, 70:548-550
[9]	Gray A N, Spies T A, Easter M J. Microclimatic and soil moisture responses to gap formation in coastal Douglas-fir forests[J]. Canadian Journal of Forest Research, 2002, 32(2):332-343
[10]	Guo D, Mou P, Jones R H, et al. Temporal changes in spatial patterns of soil moisture following disturbance: an experimental approach[J]. Journal of Ecology, 2002, 90,338-347
[11]	Raymond P, Munson A D, Ruel J C, et al. Spatial patterns of soil microclimate, light, regeneration, and growth within silvicultural gaps of mixed tolerant hardwood-white pine stands[J]. Canadian Journal of Forest Research, 2006, 36(3):639-651
[12]	Laszlo G, Barbara M, Andrea H, et al. Effects of gap size and associated changes in light and soil moisture on the understory vegetation of a Hungarian beech forest[J]. Plant Ecology, 2006, 183:133-145
[13]	李猛,段文标,陈立新. 红松阔叶混交林林隙光量子通量密度的时空分布格局[J].应用生态学报, 2011,22(4):880-884
[14]	王政权. 地统计学及在生态上的应用[M].北京:科学出版社,1999:109-133
[15]	Cambardella C A, Moorman A T, Novak J M, et al. Field scale variability of soil properties in central Iowa Soils[J].Soil Science Society of America Journal, 1994, 58(5):1501-1511
[16]	李海滨,林忠辉,刘苏峡. Kriging方法在区域土壤含水量估值中的应用[J].地理研究,2001,20(4):446-452
[17]	李岩,段文标,陈立新,等. 阔叶红松林林隙地面温度微环境变异特征[J].中国水土保持科学,2007,5(2):81-85
[18]	杨秀虹,李适宇. 地统计学方法在环境污染研究中的应用[J].中山大学学报:自然科学版,2005,44(3):97-101
[19]	杨秀云,韩有志,宁鹏,等. 采伐干扰对华北落叶松林下土壤含水量、pH和全氮空间变异的影响[J].土壤学报,2011,48(2):356-365
[20]	李毅,邵明安. 雨强对黄土坡面土壤水分入渗及再分布的影响[J].应用生态学报,2006,17(12):2271-2276
[21]	徐文铎,何兴元,陈玮,等. 长白山植被类型特征与演替规律的研究[J].生态学杂志, 2004,23(5): 162-174
[22]	石培礼,李文华. 森林植被变化对水文过程和径流的影响效应[J].自然资源学报,2002,16(5):481-487
[23]	高红,张斌,粟建荣,等. 林隙更新及其空间环境异质性研究进展[J].四川林勘设计,2011,3(9):24-29
[24]	Ritter E, Dalsgaard L, Einhorn K S. Light, temperature and soil moisture regimes following gap formation in a semi-natural beech-dominated forest in Denmark[J]. Forest Ecology and Management, 2005, 206:15-33
[25]	Clinton B D. Light, temperature, and soil moisture responses to elevation, evergreen understory, and small canopy gaps in the southern Appalachians[J]. Forest Ecology and Management,2003,186:243-255
[26]	Ochiai Y, Okuda S, Sato A.The influence of canopy gap size on soil water conditions in a deciduous broad-leaved secondary forest in Japan[J]. Journal of the Japanese Forestry Society, 1994, 76(4): 308-314
[27]	韩胜利. 大青山油松人工林地土壤含水量特征研究 .呼和浩特:内蒙古农业大学森林培育学科,2006
[28]	林希昊,陈秋波,华元刚,等. 不同树龄橡胶林土壤含水量和细根生物量[J].应用生态学报,2011,22(2): 331-336
[29]	段文标. 阔叶红松林林隙土壤水分微环境变异特征分析[J].自然资源学报,2009,24(5):809-815

Spatiotemporal Heterogeneity of Soil Water Content at Different Size of Gaps of Pinus koraiensis-Dominated Broadleaved Mixed Forest

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通讯作者: 陈斌, bchen63@163.com

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Spatiotemporal Heterogeneity of Soil Water Content at Different Size of Gaps of Pinus koraiensis-Dominated Broadleaved Mixed Forest

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