祁连山干旱山地草地生物量对水分条件的响应

Abstract

Abstract: In this study,the biomass of grassland and its response to soil moisture were studied on arid mountain land in the Qilian Mountains. This will be helpful to quantify the relationship between grassland and water,and provide the theoretical foundation for the management and utilization of mountain grassland. The biomass of grassland was measured from the elevation of 2 700-3 300 m in the Pailugou watershed in the Xishui forest zone of Qilian Mountains,in the arid region of northeast China. A total of four plots with the size of 10 m×10 m were set up at the elevation of 2 700 m,2 900 m,3 100 m,3 300 m,respectively. Five samples with the size of 1 m×1 m were selected in each plot. Grass species,height and biomass were observed from May to September,2014 and 2015. Meanwhile,the soil moisture in each grassland stand were observed. Then characteristics of the biomass of grassland in different month along with elevation gradients and the relationship between biomass of grassland and soil moisture were analyzed. The results show:(1)The mean value of aboveground biomass of grassland was 135.36 g·m^-2. There was a hump-shaped curve by which aboveground biomass of grassland along the elevation reached its peak value of 156.79±28.37 g·m^-2 at the elevation segment of 2 900 m. The mean value of belowground biomass of grassland was 946.13 g·m^-2. The belowground biomass showed an increase trend along with the increase of elevation,and its maximum value was 1 301.19±68.24 g·m^-2 at the elevation segment of 3 000 m. The difference of aboveground biomass and belowground biomass among the elevation of 2 700-300 m was significant(P<0.05).(2)The aboveground biomass and belowground biomass were a hump-shaped curve from May to September. The aboveground biomass of grassland reached its peak value of 162.05±34.42 g·m^-2 in August,while the belowground biomass reached its peak value of 1334.15±66.91 g·m^-2 in July.(3)In the grassland,the proportion of root and canopy width varied from 4.14 to 11.95. (4) The soil moisture varied from 9.23% to 31.31%,and its mean value was 14.94%.(5)The aboveground biomass and belowground biomass of grassland were significantly correlated with the mean soil moisture(P<0.05),their correlation coefficients were 0.7784 and 0.7843 respectively. Therefore,it was concluded that for the grassland community among different elevations,the soil moisture in each soil layer made different contributions to the biomass of grassland,and the soil moisture of root main distribution layer from 0 cm to 60 cm was of great importance to the biomass of grassland.

Key words: mountain grassland, biomass, soil moisture, Qilian Mountains

CLC Number:

Q948.112

WANG Shun-li, WANG Rong-xin, JING Wen-mao, ZHAO Wei-jun, NIU Yun, MA Jian, ZHU Hong. Biomass of grassland and response to soil moisture on arid mountain land in the Qilian mountains[J]., 2017, 40(4): 772-779.

References

[1] 王浩. 基于遥感技术的高寒草地植被盖度动态变化与碳储量估测[D]. 兰州:兰州大学,2012[. WANG Hao. Research of vegetation coverage distribution changes and carbon stocks of alpine grassland based on remote sensing technology[D]. Lanzhou:Lanzhou University,2012.]

[2] 郭忠升,邵明安. 半干旱区人工林草地土壤旱化与土壤水分植被承载力[J]. 生态学报,2003,23(8):1640-1647[. GUO Zhongsheng,SHAO Mingan. Oil water carrying capacity of vegetation and soil desiccation in artificial forestry and grassland in semiarid regions of the Loess Plateau[J]. Acta Ecologica Sinica, 2003,23(8):1640-1647.]

[3] 张千千. 六盘山叠叠沟小流域土壤水分动态变化与植被生长的研究[D]. 保定:河北农业大学,2009.[ZHANG Qianqian. Study on dynamic change of soil moisture and vegetation growth in the small watershed of Diediegou of Liupan Mountains[D]. Baoding:Hebei Agricultural University,2009.]

[4] 刘晶,刘学录,侯莉敏. 祁连山东段山地景观格局变化及其生态脆弱性分析[J]. 干旱区地理,2012,35(5):795-805[. LIU Jing,LIU Xuelu,HOU Limin. Changes and ecological vulnerability of landscape pattern in Eastern Qilian Mountain[J]. Arid Land Geography,2012,35(5):795-805.]

[5] 李昂. 青藏高原人工草地群落结构与生产力稳定性关系的生态学机制研究[D]. 兰州:兰州大学,2011[. LI Ang. Study on the ecology mechanism of therelationship of artificiial grassland community strueture and Produetivity stability on the Tibetan Plateau[D]. Lanzhou:Lanzhou University,2011.]

[6] 李一凡,王卷乐,祝俊祥. 基于地理分区的蒙古国景观格局分析[J]. 干旱区地理,2016,39(4):817-827[. LI Yifan,WANG Juanle,ZHU Junxiang. Landscape pattern analysis of Mongolia based on the geographical partitions[J]. Arid Land Geography, 2016,39(4):817-827.]

[7] 张鹏莉,陈俊,崔树娟,等. 禁牧条件下不同类型草地群落结构特征[J]. 生态学报,2013,33(2):425-434[. ZHANG Pengli, CHEN Jun,CUI Shujuan,et al. The community characteristics of different types of grassland under grazing prohibition condition[J]. Acta Ecologica Sinica,2013,33(2):425-434.]

[8] 周宏斌,石长春,李荣,等. 陕北白于山区草地返青期地形土壤水分与群落结构的关系[J]. 安徽农业科学,2009,(18):8653-8655.[ZHOU Hongbin,SHI Changchun,LI Rong,et al. Relationship among terrain,soil water and community structure in grass turning green period in Baiyu Mountain of northern Shaanxi[J]. Anhui Agricultural Sciences,2009,(18):8653-8655.]

[9] 马文红,方精云,杨元合. 中国北方草地生物量动态及其与气候因子的关系[J].《中国科学:生命科学》,2010,(7):632-641.[MA Wenhong,FANG Jingyun,YANG Yuanhe,et al. Biomass carbon stocks and their changes in northern China's grasslands during 1982-2006[J]. Science Sinica Vitae,2010,(7):632-641.]

[10] 王国宏,任继周,张自和. 河西山地绿洲荒漠植物群落多样性研究[J]. 草业学报,2002,11(1):31-37.[WANG Guohong, REN Jizhou,ZHANG Zihe. Studies on the population diversity of plant community in Hexi mountain-oasis-desert area,Gansu, China[J]. Acta Prataculturae Sinica,2002,11(1):31-37.]

[11] 除多,姬秋梅,普次. 利用EOS/MODIS数据估算西藏藏北高原地表草地生物量[J]. 气象学报,2007,65(4):612-621.[CHU Duo,JI Qiumei,PU Ci. Estimating grassland biomass in north Tibetan Plateau using EOS/MODIS[J]. Acta Meteorologica Sinica,2007,65(4):612-621.]

[12] 魏永林,许存平,张盛魁,等. 气候变化对青海海北地区天然草地生物量及生态环境的响应[J]. 草业科学,2008,25(3):12-17.[WEI Yonglin,XU Cunping,ZHANG Shengkui,et al. Effects of climatic changes on biomass and eco-environments of natural grassland in Haibei region of Qinghai Province[J]. Pratacultural Science,2008,25(3):12-17.]

[13] 方金,黄晓东,王玮,等. 青藏高原草地生物量遥感动态监测[J]. 草业科学,2011,28(7):1345-1351[. FANG Jin,HUANG Xiaodong,WANG Wei,et al. The grassland biomass monitoring by remote sensing technology in the Qinghai-Tibet Plateau[J]. Pratacultural Science,2011,28(7):1345-1351.]

[14] 刘金荣,谢晓蓉. 祁连山高寒草地特点及可持续发展利用对策[J]. 草原与草坪,2002,(2):15-18.[LIU Jinrong,XIE Xiaorong. The features of the alpine grassland in Qilian Mountains and strategies for sustaintable development[J]. Grassland and Turf,2002,(2):15-18.]

[15] 常学向,赵文智,赵爱芬. 祁连山区不同海拔草地群落的物种多样性[J]. 应用生态学报,2004,15(9):1599-1603[. CHANG Xuexiang,ZHAO Wenzhi,ZHAO aifen. Species diversity of pasture community at different altitude levels in Qilian Mountains[J]. Chinese Journal of Applied Ecology,2004,15(9):1599-1603.]

[16] 盛海彦,张春萍,曹广民,等. 放牧对祁连山高寒金露梅灌丛草甸土壤环境的影响[J]. 生态环境学报,2009,18(3):1088-1093[. SHENG Haiyan,ZHANG Chunping,CAO Guangmin,et al. Effect of grazing on soil environment of alpine meadow dominated by Potentilla froticosa shrub on Qilian Mountain[J]. Ecology and Environment,2009,18(3):1088-1093.]

[17] 戴声佩,张勃,王海军,等. 基于SPOT NDVI的祁连山草地植被覆盖时空变化趋势分析[J]. 地理科学进展,2010,(9):1075-1080[. DAI Shengpai,ZHANG Bo,WANG Haijun,et al. Analysis on the spatio-temporal variation of grassland cover using SPOT NDVI in Qilian Mountains[J]. Advances in Earth Science, 2010,(9):1075-1080.]

[18] 闫月娥,王建宏,石建忠,等. 祁连山北坡草地资源及退化现状分析[J]. 草业科学,2010,27(7):24-29[. YAN Yue'e,WANG Jianhong,SHI Jianzhong,et al. Analysis on grassland resources and their deterioration situation on north slope of Qilian Mountains[J]. Pratacultural Science,2010,27(7):24-29.]

[19] 陈晓敢. 祁连山北缘冲断带构造特征研究[D]. 杭州:浙江大学,2006[. CHENG Xiaogan. Structural character study of thrust belt in northern margin of Qilian Mountains[D]. Hangzhou:Zhejiang University,2006.]

[20] 王金叶,车克钧,阎文德. 祁连山(北坡)生物多样性分析[J]. 甘肃林业科技,1996,(2):22-27[. WANG Jinye,CHE Kejun, YAN Wende. Analysis of the biodiversity in Qilian Mountains[J]. Journal of Gansu Forestry Science and Technology,1996, (2):22-27.]

[21] 陈桂琛,彭敏,黄荣福,等. 祁连山区植被特征及其分布规律[J]. 植物学报,1994,36(1):63-72.[CHEN Guichen,PENG Min,HUANG Rongfu,et al. Vegetation characteristics and its distribution of Qilian Mountain Region[J]. Bulletin of Botany, 1994,36(1):63-72.]

[22] 黄德青,于兰,张耀生,等. 祁连山北坡天然草地地上生物量及其与土壤水分关系的比较研究[J]. 草业学报,2011,20(3):20-27.[HUANG Deqing,YU Lan,ZHANG Yaoaheng,et al. Above-ground biomass and its relationship to soil moisture of natural grassland in the northern slopes of the Qilian Mountains[J]. Acta Prataculturae Sinica,2011,20(3):20-27.]

[23] 李凯辉,王万林,胡玉昆,等. 不同海拔梯度高寒草地地下生物量与环境因子的关系[J]. 应用生态学报,2008,19(11):2364-2368[. LI Kaihui,WANG Wanlin,HU Yukun,et al. Relationship between underground biomass and environmental factors in alpine grassland at different altitude[J]. Chinese Journal of Applied Ecology,2008,19(11):2364-2368.]

[24] XIAO X M,CHEN D,PENG Y M,et al. Observation and modeling of plant biomass of meadow steppe in Tumugi,Xing'an League,Inner Mongolia,China[J]. Plant Ecology,1996,127:191-201.

[25] BAI Y F,HAN X G,WU J G,et al. Ecosystem stability and compensatory effects in the Inner Mongolia grassland[J]. Nature, 2004,431:181-184.

Biomass of grassland and response to soil moisture on arid mountain land in the Qilian mountains

PDF (PC)

Like

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Metrics

Comments

Recommended 0

[1]	LIU Wenli, CHEN Zhang, ZHAO Yong, LIANG Yuxin. Influences of soil moisture anomalies in May on June precipitation in Central Asia [J]. Arid Land Geography, 2024, 47(1): 38-47.
[2]	WEN Xin, SHANG Haili, HUANG Xianwu, LI Jianwei, LI Yilin, YANG Hongyu. Simulation experiment on soil moisture and solute transport in different subsidence stress regions [J]. Arid Land Geography, 2023, 46(9): 1481-1492.
[3]	FENG Yiming, LYU Chunyan, WANG Ling, ZHAO Weijun, MA Xue’e, DU Junlin, HE Junling. Carbon and nitrogen storage and allocation patterns of Picea crassifolia forest with different stand density [J]. Arid Land Geography, 2023, 46(7): 1133-1144.
[4]	YU Xiaoyan, WANG Xing, LYU Wen, GAO Yuankang, WANG Yongqiang, WANG Yanchao. Deep soil desiccation and root distribution of belted Caragana korshinskii forest in loess hilly region [J]. Arid Land Geography, 2023, 46(5): 753-762.
[5]	LU Xiongying, LIU Xiande, MA Rui, ZHAO Weijun, JING Wenmao, HE Xiaoling, ZHAO Changxing. Response of Picea crassifolia forest regeneration characteristics to topographic factors in Pailugou watershed of Qilian Mountains [J]. Arid Land Geography, 2023, 46(4): 604-613.
[6]	ZHANG Cunhou, DUAN Xiaofeng, YANG Liping, YUE Kun, ZHANG Li. Characteristics of precipitation and response of soil moisture to precipitation pulse in meadow steppe: A case of Ergun City in Hulunbuir steppe [J]. Arid Land Geography, 2022, 45(6): 1881-1889.
[7]	SUN Yanhui,ZHANG Dinghai,ZHANG Zhishan. Relationship between soil moisture content and topography-vegetation factors in different types of dunes in the Tengger Desert [J]. Arid Land Geography, 2022, 45(5): 1570-1578.
[8]	ZHU Jialong,ZHOU Zhibin,WANG Lisheng,LYU Ping,JIANG Yongxue. Coupling relationship between growth and soil moisture change of Haloxylon ammodendron plantation without irrigation [J]. Arid Land Geography, 2022, 45(5): 1579-1590.
[9]	LUO Xinlan,SUN Yue,LIU Limin,WANG Liwei,YANG Litao,GAO Xining. Simulation of response of potato growth and yield to drought stress in the single-cropping region in northern China: A case of Wuchuan County [J]. Arid Land Geography, 2022, 45(3): 867-878.
[10]	YE Jingyun,WU Bo,JIA Xiaohong,FEI Bingqiang,GAO Junliang,CHENG Long,PANG Yingjun,YAO Bin,KONG Deyong. Estimation of aboveground biomass of sparse desert vegetation based on remote sensing techniques in hyper-arid area [J]. Arid Land Geography, 2022, 45(2): 478-487.
[11]	SHANG Haiyang,SONG Nini. Poverty risk, livelihood resilience and prevention strategy practice: Investigation and analysis of 8 counties in Qilian Mountains National Nature Reserve [J]. Arid Land Geography, 2021, 44(6): 1784-1795.
[12]	WEN Yuhua,LYU Yuemin,LI Zongxing. Changes of extreme precipitation in Qilian Mountains in recent 60 years [J]. Arid Land Geography, 2021, 44(5): 1199-1212.
[13]	MA Jian,LIU Xiande,HE Xiaoling,WANG Shunli,HE Yongyan,WU Xiurong,ZHAO Jingzhong,MA Xue'e. Structural characteristics and diversity of typical shrub communities in Qilian Mountains [J]. Arid Land Geography, 2021, 44(5): 1427-1437.
[14]	SONG Jie,LIU Xuelu. Estimation of forest aboveground carbon density in Qilian Mountains National Park based on remote sensing [J]. Arid Land Geography, 2021, 44(4): 1045-1057.
[15]	LI Cuina,LIU Tianqi,WU Dongli. Anomaly data detection method for in situ automatic soil moisture observation [J]. Arid Land Geography, 2021, 44(4): 1093-1103.