PDF Download

[1]YANG Yonghong,WANG Fei,CAO Xiuwen,et al.Surface Cover and Soil Hydrological Characteristics of Alpine Timberline Ecotone in the Upper Reaches of Bailongjiang River[J].Research of Soil and Water Conservation,2018,25(02):145-150.

Copy

Surface Cover and Soil Hydrological Characteristics of Alpine Timberline Ecotone in the Upper Reaches of Bailongjiang River

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 25 Number of periods: 2018 02 Page number: 145-150 Column: Public date: 2018-04-03

Title:: Surface Cover and Soil Hydrological Characteristics of Alpine Timberline Ecotone in the Upper Reaches of Bailongjiang River

Author(s):: YANG Yonghong^1,2, WANG Fei^1,2, CAO Xiuwen^1,2, LIU Jinqian^1,2, WANG Ruojian^1,2, LI Sheqin³, XU Decai³, WANG Shuangyan³; 1. Institute of Forestry Science, Bailongjiang Forestry Management Bureau of Gansu Provience, Lanzhou 730070, China;
2. Gansu Bailongjiang National Forest Ecosystem Research Station, Zhouqu, Gansu 746300, China;
3. Beach Forest Farm of Zhouqu County Forestry Bureau, Zhouqu, Gansu 746300, China

Keywords:: alpine timberline; the surface cover; soil; hydrological characteristics

CLC:: S714

DOI:: -

Abstract:: The surface cover and soil hydrological characteristics of alpine timberline ecotone in the upper reaches of Bailongjiang River were studied with the survey of community plots and laboratory analysis methods in the report. The result showed that:(1) the total volume of surface cover varied from 37.33 t/hm² to 127.28 t/hm² in the different areas in the upper reaches of Bailongjiang River, it reached the minimum above the timberline, it reached the maximum under the timberline; the timberline area was no different from the below timberline; the volume of the litter decomposition layer in the surface cover was the largest, it accounted for more than half of total volume; the maximum water holding capacity and specific retention of the surface cover under the timberline were the maximal, instead, they reached the minimum above the timberline; (2) soil bulk density increased significantly with the depth of the soil layer; the change of soil bulk density above the timberline was the maximal; the soil bulk density in 0-10 cm soil layer was 0.56 g/cm³, which reached the minimum, and it was 1.12 g/cm³ in 20-40 cm of soil layer, which reached the maximal; however, the change of non-capillary porosity appeared the diametric trend, non-capillary porosity decreased significantly with the depth of the soil layer; non-capillary porosity of surface soil under the timberline was 8.07%,which reached the maximal; and it was 6.27% above the timberline, which reached the minimum; (3) initial infiltration rate and average infiltration rate were all the largest in 0-10 cm soil layer in the timberline, it reached the minimum above the timberline; the change of initial infiltration rate, final infiltration rate and average infiltration rate were all basically consistent with the changes of the soil layer depths. The result showed that the relation between the specific retention of the surface cover and the immersing time followed the power function. It was expressed as the equation:Y=at^k.

References:: [1] Körner C, Paulsen J. A world-wide study of high altitude treeline temperatures[J]. Journal of Biogeography, 2004,31(5):713-732.
[2] Szeicz J M, Macdonald G M. Recent white spruce dynamics at the subarctic alpine treeline of north-western Canada[J]. Journal of Ecology, 1995,83(5):873-885.
[3] 任青山,杨小林,崔国发,等.西藏色季拉山林线冷杉种群结构与动态[J].生态学报,2007,27(7):2669-2678.
[4] Körner C. A re-assessment of high elevation treeline positions and their explanation[J]. Oecologia, 1998,115(4):445-459.
[5] 李倩茹,许中旗,许晴,等.燕山西部山地灌木群落凋落物积累量及其持水性能研究[J].水土保持学报,2009(2):75-78.
[6] 梁文俊,丁国栋,周美思,等.冀北山地油松和落叶松林下枯落物的水文效应[J].水土保持通报,2012,32(4):71-74.
[7] 贺宇,丁国栋,梁文俊,等.林分密度对枯落物层持水特性的影响[J].西北农林科技大学学报:自然科学版,2012,40(4):68-72.
[8] 王谦,孙保平,丁国栋,等.陕西榆林樟子松人工林土壤及枯落物水文效应[J].西北农林科技大学学报:自然科学版,2015,43(8):123-132.
[9] 邓坤枚,石培礼,杨振林.长白山树线交错带的生物量分配和净生产力[J].自然资源学报,2006,21(6):942-948.
[10] Miao W, Li Q, Xiao D, et al. Effects of soil temperature and soil water content on soil respiration in three forest types in Changbai Mountain[J]. Journal of Forestry Research, 2004,15(2):113-118.
[11] 周晓峰,王晓春,韩士杰,等.长白山岳桦苔原过渡带动态与气候变化[J].地学前缘,2002,9(1):227-231.
[12] 王飞,郭星,陈国鹏,等.甘肃白龙江亚高山杜鹃粗木质残体腐烂程度与持水性能研究[J].西藏大学学报,2015,30(2):44-49.
[13] 王阳临.白龙江林区垂直带划分[C]//尹祚栋,赫卓峰.白龙江洮河林区综合考察论文集.上海:上海科学技术出版社,1991.
[14] 沈志强,卢杰,华敏,等.西藏色季拉山高山松种群点格局分析[J].西北农林科技大学学报:自然科学版,2016,44(5):73-81.
[15] 张东,邵社刚,赵辉.晋西黄土丘陵沟壑区主要人工林枯落物水文特性研究[J].西北农林科技大学学报:自然科学版,2014(5):97-101.
[16] 程金花,张洪江,余新晓,等.贡嘎山冷杉纯林地被物及土壤持水特性[J].北京林业大学学报,2002,24(3):45-49.
[17] 薛立,何跃君,屈明,等.华南典型人工林凋落物的持水特性[J].植物生态学报,2005,29(3):415-421.
[18] 顾宇书,邢兆凯,韩友志,等.浑河上游4种典型林分类型枯落物持水特征[J].南京林业大学学报:自然科学版,2013,37(1):31-36.
[19] 沈盈佳,曾建军.保山北庙水库集水区5种森林类型枯落物持水特性研究[J].长江科学院院报,2015,32(1):43-48.
[20] 胡海波,张金池.平原粉沙淤泥质海岸防护林土壤渗透特性的研究[J].水土保持学报,2001,15(1):39-42.
[21] 赵陟峰,郭建斌,赵廷宁,等.土桥沟流域不同林分枯落物的水文特性[J].西北林学院学报,2008,23(6):14-17.
[22] 赵世伟,周印东,吴金水.子午岭北部不同植被类型土壤水分特征研究[J].水土保持学报,2002,16(4):119-122.
[23] 赵丽,王建国,车明中,等.内蒙古扎兰屯市典型森林枯落物土壤水源涵养功能研究[J].干旱区资源与环境,2014(5):91-96.
[24] 张远东,刘世荣,马姜明.川西高山和亚高山灌丛的地被物及土壤持水性能[J].生态学报,2006,26(9):2775-2782.
[25] 宫渊波,陈林武,罗承德,等.嘉陵江上游严重退化地5种森林植被类型枯落物的持水功能比较[J].林业科学,2007,43(S1):12-16.
[26] 刘洋,张健,杨万勤,等.川西高山树线群落交错带地被物及土壤的水文效应[J].林业科学,2011,47(3):1-6.

Similar References:

Memo

Last Update: 1900-01-01