Soil Respiration Characteristics of Typical Grassland on the Northern Slopes of the Tianshan Mountains and Their Response to Environmental Factors

doi:10.13304/j.nykjdb.2021.0290

Abstract

Abstract:

To reveal soil respiration patterns of different types of grassland on the northern slopes of the Tianshan Mountains， this study used the soil carbon flux measurement system LI-840A to monitor the daily and seasonal dynamics of soil respiration （R_s） in desert steppe and shrub meadows on the northern slopes of the Tianshan Mountains. The results showed that the daily variation of soil respiration rate in both types of grasslands in the growing season increased first and then decreased in the day time， and the variation trend was gentle at night， with the maximum daily emission rate occurring at 12:00—16:00 and the minimum value occurring at 4:00—7:00. The soil respiration rate of shrub meadows was higher than the rate of desert steppes in all months of the growing season. Soil respiration was exponentially correlated with temperature in both types of grasslands. Soil water content was more correlated with the soil respiration rate of shrub meadows than with the soil respiration rate of desert steppes. Soil respiration rate was significantly influenced by soil temperature at 5 cm depth （T） and 5 cm soil water content （W）. The best-fit model between the soil respiration rate of desert steppes and both variables was R_s=130.515e^0.031^TW^2.513， whereas shrub meadows satisfied the best-fit model of R_s=-1.290 + 0.010T + 28.007W + 1.199 TW. The purpose of this paper revealed the changing law of soil respiration in desert steppe and shrub meadow， and provided basic data and theoretical support for the study of grassland carbon cycle on the northern slopes of Tianshan Mountains.

Key words: northern slopes of the Tianshan Mountains, soil respiration, desert steppe, shrub meadow, environmental factors

摘要：

为揭示天山北坡不同类型草地的土壤呼吸规律，采用土壤碳通量测量系统LI-840A对天山北坡荒漠草原和灌丛草甸土壤呼吸（soil respiration，R_s）日变化和季节动态进行监测，并利用多元回归模型分析温度和水分对草地土壤呼吸的协同影响。结果表明，2种草地类型生长季土壤呼吸速率均表现为日间先增高后降低，夜间较平缓的日变化趋势，日最大排放速率出现在12:00—16:00，最小值出现在6:00—7:00左右；灌丛草甸生长季各个月份的土壤呼吸速率均高于荒漠草原。2种草地类型土壤呼吸速率与温度均呈指数相关；土壤含水量与灌丛草甸土壤呼吸速率的相关性高于与荒漠草原土壤呼吸速率的相关性；土壤呼吸速率受5 cm土壤温度（T）和5 cm土壤含水量（W）的影响显著，荒漠草原土壤呼吸速率与二者之间满足最佳拟合模型R_s=130.515e^0.031^TW^2.513，灌丛草甸满足最佳拟合模型R_s =-1.290+0.010T+28.007W+1.199TW。研究结果揭示了荒漠草原和灌丛草甸土壤呼吸的变化规律，为天山北坡草地碳循环研究提供基础数据和理论支持。

关键词: 天山北坡, 土壤呼吸, 荒漠草原, 灌丛草甸, 环境因子

CLC Number:

S812.6

Wenzhang GUO, Changqing JING, Xiaojin DENG, Chen CHEN, Weikang ZHAO, Zhixiong HOU, Gongxin WANG. Soil Respiration Characteristics of Typical Grassland on the Northern Slopes of the Tianshan Mountains and Their Response to Environmental Factors[J]. Journal of Agricultural Science and Technology, 2022, 24(10): 189-199.

郭文章, 井长青, 邓小进, 陈宸, 赵苇康, 侯志雄, 王公鑫. 天山北坡典型草地土壤呼吸特征及其对环境因子的响应[J]. 中国农业科技导报, 2022, 24(10): 189-199.

Figures/Tables 8

References 45

1	沈海花,朱言坤,赵霞,等.中国草地资源的现状分析[J].科学通报,2016,61(2):139-154.
	SHEN H H, ZHU Y K, ZHAO X, et al.. Analysis of current grassland resources in China [J]. Chin. Sci. Bull., 2016, 61(2): 139-154.
2	胡毅,朱新萍,韩东亮,等.围栏封育对天山北坡草甸草原土壤呼吸的影响[J].生态学报,2016,36(20):6379-6386.
	HU Y, ZHU X P, HAN D L, et al.. Effects of fencing on soil respiration rates in the meadow steppes in the northern slope of the Tianshan Mountains [J]. Acta Ecol. Sin., 2016, 36(20): 6379-6386.
3	SCHLESINGER W H, ANDREWS J A. Soil respiration and the global carbon cycle [J]. Biogeochemistry, 2000, 48(1): 7-20.
4	马志良,赵文强,刘美,等.土壤呼吸组分对气候变暖的响应研究进展[J].应用生态学报,2018,29(10):3477-3486.
	MA Z L, ZHAO W Q, LIU M, et al.. Research progress on the responses of soil respiration components to climatic warming [J]. Chin. J. Appl. Ecol., 2018, 29(10): 3477-3486.
5	高艳红,刘立超,贾荣亮,等.沙坡头人工植被演替过程的土壤呼吸特征[J].生态学报,2012,32(8):2474-2482.
	GAO Y H, LIU L C, JIA R L, et al.. Soil respiration patterns during restoration of vegetation in the Shapotou area, Northern China [J]. Acta Ecol. Sin., 2012, 32(8): 2474-2482.
6	张东秋,石培礼,张宪洲.土壤呼吸主要影响因素的研究进展[J].地球科学进展,2005,20(7):778-785.
	ZHANG D Q, SHI P L, ZHANG X Z. Some advance in the main factors controlling soil respiration [J]. Adv. Earth Sci., 2005, 20(7): 778-785.
7	王珍,赵萌莉,韩国栋,等.模拟增温及施氮对荒漠草原土壤呼吸的影响[J].干旱区资源与环境,2012,26(9):98-103.
	WANG Z, ZHAO M L, HAN G D, et al.. Response of soil respiration to simulated warming and N addition in the desert steppe [J]. J. Arid Land Res. Environ., 2012, 26(9): 98-103.
8	刘春霞,王玉杰,王云琦,等.重庆缙云山3种林型土壤呼吸及其影响因子[J].土壤通报,2013,44(3):587-593.
	LIU C X, WANG Y J, WANG Y Q, et al.. Soil respiration and impact factors of 3 forest types in Jinyun Mountain of Chongqing [J]. Chin. J. Soil Sci., 2013, 44(3): 587-593.
9	胡保安,贾宏涛,朱新萍,等.新疆巴音布鲁克天鹅湖高寒湿地土壤呼吸对水分条件的响应[J].环境科学研究,2016,29(7):1041-1049.
	HU B A, JIA H T, ZHU X P, et al.. Dynamics of soil respiration under different water conditions in an alpine wetland of the Xinjiang Bayanbulak Swan Lake [J]. Res. Environ. Sci., 2016, 29(7): 1041-1049.
10	付皓宇,井长青,郭文章,等.准噶尔盆地荒漠灌丛草地土壤呼吸变化及其对土壤温、湿度的响应[J].草地学报,2019,27(6):1677-1684.
	FU H Y, JING C Q, GUO W Z, et al.. Changes of soil respiration in desert shrub grassland and its response to soil temperature and humidity in Junggar Basin [J]. Acta Agric. Sin., 2019, 27(6): 1677-1684.
11	张丽华,陈亚宁,赵锐锋,等.温带荒漠中温度和土壤水分对土壤呼吸的影响[J].植物生态学报,2009,33(5):936-949.
	ZHANG L H, CHEN Y N, ZHAO R F, et al.. Impact of temperature and soil water content on soil respiration temperate deserts [J]. J. Plant Ecol., 2009, 33(5): 936-949.
12	GAUMON G D, BlACK T A, GRIFFIS T J, et al.. Interpreting the dependence of soil respiration on soil temperature and water content in a boreal aspen stand [J]. Agric. Forest Meteorol., 2006, 140(1): 220-235.
13	赵鹏,陈桃,王茜,等.气候变化和人类活动对新疆草地生态系统NPP影响的定量分析[J].中国科学院大学学报, 2020,37(1):51-62.
	ZHAO P, CHEN T, WANG Q, et al.. Quantitative analysis of the impact of climate change and human activities on grassland ecosystem NPP in Xinjiang [J]. J. Univ. Chin. Academy Sci., 2020, 37(1): 51-62.
14	陈迪桃,黄法融,李倩,等.1966—2015年天山南北坡空气湿度差异及其影响因素[J].气候变化研究进展,2018,14(6):562-572.
	CHEN D T, HUANG F R, LI Q, et al.. Spatial variation of humidity and its influencing factors in the north and south slopes of the Tianshan Mountains, China during 1966-2015 [J]. Climate Change Res., 2018, 14(6): 562-572.
15	冯志敏,赵玲,安沙舟,等.基于MODIS的天山山区草地类型植被指数变化特征及其与气候因子的关系[J].沙漠与绿洲气象,2015,9(2):57-62.
	FENG Z M, ZHAO L, AN S Z, et al.. Change characteristics of MODIS NDVI and its relations to climate factors in the Tianshan Mountains [J]. Desert Oasis Meteorol., 2015, 9(2): 57-62.
16	杨齐,赵万羽,李建龙,等.新疆天山北坡荒漠草地退化现状及展望[J].草原与草坪,2009(3):86-91.
	YANG Q, ZHAO W Y, LI J L, et al.. Analysis of present situation and research progress of desert grassland degradation in northern slope of Tianshan Mountains in Xinjiang [J]. Grassland Turf., 2009(3): 86-91.
17	温超,单玉梅,晔薷罕,等.氮和水分添加对内蒙古荒漠草原放牧生态系统土壤呼吸的影响[J].植物生态学报,2020,44(1): 80-92.
	WEN C, SHAN Y M, YE R H, et al.. Effects of nitrogen and water addition on soil respiration in the grazing ecosystem of the desert steppe in Inner Mongolia [J]. J. Plant Ecol., 2020, 44(1): 80-92.
18	徐海红,侯向阳,那日苏.不同放牧制度下短花针茅荒漠草原土壤呼吸动态研究[J].草业学报,2011,20(2):219-226.
	XU H H, HOU X Y, NA R S. Dynamics of soil respiration under different grazing systems in a Stipa breviflora desert steppe [J]. Acta Pratac. Sin., 2011, 20(2): 219-226.
19	胡毅,朱新萍,贾宏涛,等.围栏封育对天山北坡草甸草原生态系统碳交换的影响[J].植物生态学报,2018,42(3):372-381.
	HU Y, ZHU X P, JIA H T, et al.. Effects of fencing on ecosystem carbon exchange at meadow steppe in the northern slope of the Tianshan Mountains [J]. J. Plant Ecol., 2018, 42(3): 372-381.
20	魏绍成,黄凤兰,杨俊兰.草甸植物群落的发生学基础[J].草业科学,2001,18(6): 16-19.
	WEI S C, HUANG F L, YANG J L. A base of formation on meadow vegetation [J]. Pratac. Sci., 2001, 18(6): 16-19.
21	丁娓,孙霞,贾阳阳,等.不同放牧强度对天山北坡草原草地生态系统碳交换速率的影响[J].新疆农业大学学报,2014, 37(3):197-202.
	DING W, SUN X, JIA Y Y, et al.. Effects of different grazing intensity on the rate of meadow steppe carbon sequestration in the North Slope of Tianshan Mountains [J]. J. Xinjiang Agric.Univ., 2014, 37(3): 197-202.
22	LUO Y Q, WAN S Q, HUI D F, et al.. Acclimatization of soil respiration to warming in a tall grass prairie [J]. Nature, 2001, 413(6856): 622-625.
23	REY A, PEGORARO E, TEDESCHI V, et al.. Annual variation in soil respiration and its components in a coppice oak forest in Central Italy [J]. Global Change Biol., 2002, 8(9): 851-866.
24	赵青,刘爽,陈燕菲,等.武夷山不同林龄甜槠林土壤呼吸特征及影响因素[J].生态学报,2021,41(6):2326-2338.
	ZHAO Q, LIU S, CHEN Y F, et al.. Soil respiration characteristics and influencing factors of Castanopsis eyrei forest in different forest ages in Wuyi Mountain [J]. Acta Ecol. Sin., 2021, 41(6): 2326-2338.
25	赵成政,王亚军,谢忠奎,等.砾石长期覆盖对土壤呼吸的影响[J].中国沙漠,2020,40(2): 232-239.
	ZHAO C Z, WANG Y J, XIE Z K, et al.. Long-term effects of Gravel-Sand mulch on diurnal variation of soil respiration in Semi-arid Loess Plateau [J]. J. Desert Res., 2020, 40(2): 232-239.
26	杨晶,黄建辉,詹学明,等.农牧交错区不同植物群落土壤呼吸的日动态观测与测定方法比较[J].植物生态学报,2004,28(3):318-325.
	YANG J, HUANG J H, ZHAN X M, et al.. The diurnal dynamic patterns of soil respiration for different plant communities in the agropastoral ecotone with reference to different measuring methods [J]. Chin. J. Plant Ecol., 2004, 28(3): 318-325.
27	王铭,刘兴土,李秀军,等.松嫩平原西部草甸草原典型植物群落土壤呼吸动态及影响因素[J].应用生态学报,2014,25(1):45-52.
	WANG M, LIU X T, LI X J, et al.. Soil respiration dynamics and its controlling factors of typical vegetation communities on meadow steppes in the western Songnen Plain [J]. Chin. J. Applied Ecol., 2014, 25(1): 45-52.
28	汪娜,黄义雄,叶功富,等.杉木人工林土壤呼吸速率对水热条件变化的响应[J].生态学杂志,2012,31(10):2461-2465.
	WANG N, HUANG Y X, YE G F, et al.. Responses of soil respiration rate in Chinese fir plantation to the changes of heat and moisture condition [J]. Chin. J. Ecol., 2012, 31(10): 2461-2465.
29	范子昂,窦晓静,邹陈,等.喀纳斯自然保护区林地和草地土壤呼吸速率差异及影响因素[J].土壤,2017,49(1):189-195.
	FAN Z A, DOU X J, ZOU C, et al.. Differences in soil respiration between forestland and grassland ecosystems and influential factors in Kanas nature reserve [J]. Soil, 2017, 49(1): 189-195.
30	阳维宗,马骁,杨文,等.若尔盖草本沼泽生物量季节动态、根系周转及碳氮磷储量[J].生态学杂志,2021,40(5):1285-1292.
	YANG W Z, MA X, YANG W, et al.. Seasonal dynamics of biomass, root turnover, and carbon, nitrogen and phosphorus storages of Zoige alpine marsh [J]. Chin. J. Ecol., 2021, 40(5): 1285-1292.
31	聂明华,刘敏,侯立军,等.长江口潮滩土壤呼吸季节变化及其影响因素[J].环境科学学报,2011,31(4):824-831.
	NIE M H, LIU M, HOU L J, et al.. Seasonal variation of soil respiration and its influence factors in tidal flat of Yangtze Estuary [J]. Acta Sci. Circ., 2011, 31(4): 824-831.
32	刘尚华,吕世海,冯朝阳,等.京西百花山区六种植物群落凋落物及土壤呼吸特性研究[J].中国草地学报,2008,30(1): 78-86.
	LIU S H, LV S H, FENG C Y, et al.. Study on soil and litter respiration characteristics of six communities in Baihua moun-tainous area in west Beijing [J]. Chin. J. Grassland, 2008, 30(1): 78-86.
33	冯文婷,邹晓明,沙丽清,等.哀牢山中山湿性常绿阔叶林土壤呼吸季节和昼夜变化特征及影响因子比较[J].植物生态学报,2008,32(1):31-39.
	FENG W T, ZOU X M, SHA L Q, et al.. Comparisons between seasonal and diurnal patterns of soil respiration in a montane evergreen broad-leaved forest of Ailao mountains [J]. J. Plant Ecol., 2008, 32(1): 31-39.
34	张丽华,陈亚宁,李卫红,等.干旱区荒漠生态系统的土壤呼吸[J].生态学报,2008,28(5):1911-1922.
	ZHANG L H, CHEN Y N, LI W H, et al.. Soil respiration in desert ecosystems of the arid region [J]. Acta Ecol. Sin., 2008, 28(5): 1911-1922.
35	刘立新,董云社,齐玉春.草地生态系统土壤呼吸研究进展[J].地理科学进展,2004,23(4):35-42.
	LIU L X, DONG Y S, QI Y C. The development on the soil respiration of grassland ecosystem [J]. Progress Geo., 2004, 23(4): 35-42.
36	郭明英,朝克图,尤金成,等.不同利用方式下草地土壤微生物及土壤呼吸特性[J].草地学报,2012,20(1):42-48.
	GUO M Y, ZHAO K T, YOU J C, et al.. Soil microbial characteristic and soil respiration in grassland under different use patterns [J]. Acta Agr. Sin., 2012, 20(1): 42-48.
37	栾军伟,刘世荣.土壤呼吸的温度敏感性—全球变暖正负反馈的不确定因素[J].生态学报,2012,32(15):4902-4913.
	LUAN J W, LIU S R. Temperature sensitivity of soil respiration: uncertainties of global warming positive or negative feedback [J]. Acta Ecol. Sin., 2012, 32(15): 4902-4913.
38	BUCHMANN N. Biotic and abiotic factors controlling soil respiration rates in Picea Abies stands [J]. Soil Biol. Biochem., 2000, 32(11): 1625-1635.
39	陈骥,曹军骥,魏永林,等.青海湖北岸高寒草甸草原非生长季土壤呼吸对温度和湿度的响应[J].草业学报,2014,23(6): 78-86.
	CHEN J, CAO J J, WEI Y L, et al.. Effect of grazing exclusion on soil respiration during the dormant season in alpine meadow grassland ecosystem on the northern shore Qinghai Lake, China [J]. Acta Partac. Sin., 2014, 23(6): 78-86.
40	杨开业,巩合德,李敬,等.元江干热河谷稀树灌草丛生态系统土壤呼吸动态特征[J].浙江农林大学学报,2020,37(5): 849-859.
	YANG K Y, GONG H D, LI J, et al.. Dynamic characteristics of soil respiration of Savanna ecosystem in dry hot valley of Yuanjiang [J]. J. Zhejiang A&F Univ., 2020, 37(5): 849-859.
41	谭炯锐,查同刚,张志强,等.土壤温湿度对北京大兴杨树人工林土壤呼吸的影响[J].生态环境学报,2009,18(6):2308-2315.
	TAN J R, ZHA T G, ZHANG Z Q, et al.. Effects of soil temperature and moisture on soil respiration in a poplar plantation in Daxing district, Beijing [J]. Ecol. Envir. Sci., 2009, 18(6): 2308-2315.
42	于秀丽,姜明.芦苇沼泽和羊草草甸土壤呼吸动态研究[J].中国农机化学报,2016,37(5):236-240.
	YU X L, JIANG M. Research on dynamics of soil respiration in phragmites australis marsh and Leymus chinensis meadow [J]. J.Chin. Agric. Mech., 2016, 37(5): 236-240.
43	王斌,李洁,姜微微,等.草地退化对三江源区高寒草甸生态系统CO₂通量的影响及其原因[J].中国环境科学,2012,32(10):1764-1771.
	WANG B, LI J, JIANG W W, et al.. Impacts of the rangeland degradation on CO₂ flux and the underlying mechanisms in the Three-River Source Region on the Qinghai-Tibetan Plateau [J]. China Environ. Sci., 2012, 32(10): 1764-1771.
44	亓伟伟,牛海山,汪诗平,等.增温对青藏高原高寒草甸生态系统固碳通量影响的模拟研究[J].生态学报,2012,32(6):1713-1722.
	QI W W, NIU H S, WANG S P, et al.. Simulation of effects of warming on carbon budget in alpine meadow ecosystem on the Tibetan Plateau [J]. Acta Ecol. Sin., 2012, 32(6): 1713-1722.
45	张红星,王效科,冯宗炜,等.黄土高原小麦田土壤呼吸对强降雨的响应[J].生态学报,2008,28(12): 6189-6196.
	ZHANG H X, WANG X K, FENG Z W, et al.. The great rainfall effect on soil respiration of wheat field in semi-arid region of the Loess Plateau [J]. Acta Ecol. Sin., 2008, 28(12): 6189-6196.

草地类型 Grassland types	模型 Model	回归方程 Regression equation	R²
荒漠草原 Desert steppe	线性函数 Linear function	R_s=-0.678+18.872W	0.57^**
	二次函数 Quadratic function	R_s=0.811-14.988W+154.652W²	0.63^**
	指数函数 Exponential function	R_s=0.168e^16.389^W	0.66^**
	幂函数 Power exponential function	R_s=129.086W^2.173	0.62^**
	对数函数 Logarithmic function	R_s=1.612lnW+5.148	0.48^**
灌丛草甸 Shrub meadow	线性函数 Linear function	R_s=-2.407+65.015W	0.82^**
	二次函数 Quadratic function	R_s=-5.650+163.540W-689.304W²	0.85^**
	指数函数 Exponential function	R_s=0.265e^27.659^W	0.75^**
	幂函数 Power exponential function	R_s=513.004W^2.091	0.79^**
	对数函数 Logarithmic function	R_s=4.494lnW+14.284	0.84^**

草地类型 Grassland types	模型 Model	回归方程 Regression equation	R²
荒漠草原 Desert steppe	线性函数 Linear function	R_s=-0.678+18.872W	0.57^**
	二次函数 Quadratic function	R_s=0.811-14.988W+154.652W²	0.63^**
	指数函数 Exponential function	R_s=0.168e^16.389^W	0.66^**
	幂函数 Power exponential function	R_s=129.086W^2.173	0.62^**
	对数函数 Logarithmic function	R_s=1.612lnW+5.148	0.48^**
灌丛草甸 Shrub meadow	线性函数 Linear function	R_s=-2.407+65.015W	0.82^**
	二次函数 Quadratic function	R_s=-5.650+163.540W-689.304W²	0.85^**
	指数函数 Exponential function	R_s=0.265e^27.659^W	0.75^**
	幂函数 Power exponential function	R_s=513.004W^2.091	0.79^**
	对数函数 Logarithmic function	R_s=4.494lnW+14.284	0.84^**

拟合模型 Fit model	荒漠草原 Desert steppe		灌丛草甸 Shrub meadow
拟合模型 Fit model	拟合方程 Fitting equation	R²	拟合方程 Fitting equation	R²
公式（8） Formula（8）	R_s=-1.076+0.026T+18.303W	0.62^**	R_s=-2.420+0.069T+50.899W	0.86^**
公式（9） Formula（9）	R_s=130.515e^0.031^TW^2.513	0.75^**	R_s=19.210e^0.069^TW^1.263	0.85^**
公式（10） Formula（10）	R_s=0.379e^0.499^{T W}	0.63^**	R_s=0.634e^0.958^TW	0.80^**
公式（11） Formula（11）	R_s=0.730TW-0.206	0.61^**	R_s=2.161TW-0.247	0.85^**
公式（12） Formula（12）	R_s=0.21+0.058T+2.913W+0.898TW	0.68^**	R_s=-1.290+0.010T+28.007W+1.199TW	0.87^**

拟合模型 Fit model	荒漠草原 Desert steppe		灌丛草甸 Shrub meadow
拟合模型 Fit model	拟合方程 Fitting equation	R²	拟合方程 Fitting equation	R²
公式（8） Formula（8）	R_s=-1.076+0.026T+18.303W	0.62^**	R_s=-2.420+0.069T+50.899W	0.86^**
公式（9） Formula（9）	R_s=130.515e^0.031^TW^2.513	0.75^**	R_s=19.210e^0.069^TW^1.263	0.85^**
公式（10） Formula（10）	R_s=0.379e^0.499^{T W}	0.63^**	R_s=0.634e^0.958^TW	0.80^**
公式（11） Formula（11）	R_s=0.730TW-0.206	0.61^**	R_s=2.161TW-0.247	0.85^**
公式（12） Formula（12）	R_s=0.21+0.058T+2.913W+0.898TW	0.68^**	R_s=-1.290+0.010T+28.007W+1.199TW	0.87^**

[1]	Yanchen WEI, Jixiang CHEN, Yonggang WANG, Tongtong MENG, Yalong HAN, Mei LI. Analysis of Bacterial Diversity in the Rhizosphere Soil of Salsolapasserina and Its Correlation with the Soil Physical and Chemical Properties [J]. Journal of Agricultural Science and Technology, 2022, 24(5): 209-217.
[2]	YIN Quanyu1, LIU Jianhao1, LIU Guoshun1, YANG Xinling2, LI Xiaofu2, ZHANG Yulan1, LI Yang1,YE Hongchao3*. Effects of Biochar Application for Four Consecutive Years on Microbial Community Structure of Tobacco Cinnamon Soil [J]. Journal of Agricultural Science and Technology, 2021, 23(1): 176-185.
[3]	HUANG Yaru1, LI Yonghua2*, XIN Zhiming1, MA Yingbin1, DONG Xue1, LI Xinle1, DUAN Ruibing1, LUO Fengmin1, BIAN Kai1. Sap Flow Variation Characteristics and Its Relationship with Meteorological Factors of artificial Haloxylon ammodendron(C. A. Mey.) Bunge in Summer in Ulan Buh Desert [J]. Journal of Agricultural Science and Technology, 2020, 22(7): 155-165.