祁连圆柏群落特征沿年降水量梯度的变化格局

doi:10.13866/j.azr.2021.06.21

干旱区研究 ›› 2021, Vol. 38 ›› Issue (6): 1695-1703.doi: 10.13866/j.azr.2021.06.21

祁连圆柏群落特征沿年降水量梯度的变化格局

王童犇¹(),朱芩¹,侯晓巍²,郝家田²,李智华²,侯琳^1,³()

1.西北农林科技大学林学院,陕西杨凌 712100
2.国家林业和草原局西北调查规划设计院,陕西西安 710048
3.陕西秦岭森林生态系统国家野外科学观测研究站,陕西杨凌 712100

收稿日期:2021-05-16 修回日期:2021-07-09 出版日期:2021-11-15 发布日期:2021-11-29
通讯作者: 侯琳
作者简介:王童犇（1997-）,女,硕士研究生,主要从事森林生态学研究. E-mail: wangtongben@nwafu.edu.cn
基金资助:
国家林业和草原局西北规划设计院项目(K403218362);旱区生态水文与灾害防治国家林业局重点实验室项目“青海柏树生态系统有机碳空间特征研究”(LC-2-12)

Community characteristics of Juniperus przewalskii along annual precipitation gradients

WANG Tongben¹(),ZHU Qin¹,HOU Xiaowei²,HAO Jiatian²,LI Zhihua²,HOU Lin^1,³()

1. College of Forestry, Northwest A&F University, Yangling 712100, Shaanxi, China
2. Northwest Institute of Forest Inventory, Planning and Design, State Forest and Grassland Administration, Xi’an 710048, Shaanxi, China
3. Qinling National Forest Ecosystem Research Station, Yangling 712100, Shaanxi, China

Received:2021-05-16 Revised:2021-07-09 Online:2021-11-15 Published:2021-11-29
Contact: Lin HOU

摘要/Abstract

摘要：

祁连圆柏（Juniperus przewalskii）群落是青海省的主要森林群落之一,在保持水土、涵养水源和维护生态平衡等方面起着关键作用。为了解祁连圆柏群落特征和祁连圆柏种群年龄结构对年降水量梯度的响应,以青海省祁连圆柏天然群落为研究对象,沿年降水量梯度布设群落样地,开展群落特征调查。结果表明：（1）该地区年降水量自西北向东南逐渐增加,随着年降水量增加,祁连圆柏群落灌木层、草本层优势种的重要值发生了显著变化（P<0.05）。（2）年降水量在169~377 mm之间时种群呈衰退型,年降水量为470 mm、530 mm时,种群分别呈稳定型、增长型。（3）林下植物α多样性指数在不同年降水量下差异显著（P<0.05）。随着年降水量增加,灌木层、草本层的Shannon-Wiener指数、Simpson指数和物种丰富度逐渐增大,且均在年降水量为530 mm时达到最大值。（4）随着年降水量增加,灌木层的β多样性指数呈“波动”变化,Cody和Sorensen指数在年降水量470~530 mm和281~377 mm时,分别达到峰值和谷值;草本层的β多样性指数先增加后降低,Cody和Sorensen指数在年降水量377~470 mm时分别达到峰值和谷值,两者之间β多样性最大,物种更替速率最快。年降水量对祁连圆柏种群年龄结构和群落特征有显著影响,在年降水量低于377 mm的林区,改造林地微地形、蓄集天然降水、防止牛羊危害,有利于天然更新。

关键词: 年降水量梯度, 祁连圆柏（Juniperus przewalskii）, 群落特征, 物种多样性, 青海

Abstract:

Precipitation is the most important factor restricting the structure and species diversity of plant communities in arid and semiarid areas. In recent years, the variation patterns of community species diversity along environmental gradients have become one of the research hotspots in ecology. However, many controversies about the response of plant community characteristics to changes in natural precipitation remain unresolved. In the arid area of Qinghai province, one of the dominant tree species is Juniperus przewalskii, which plays a key role in water and soil conservation, water holding, and ecological balance. Studying the changes in age structure, community composition, and species diversity of J. przewalskii population along the annual precipitation gradient is important for the conservation of natural plant communities in arid areas. This study was conducted to understand the response of the community characteristics of J. przewalskii and the age structure of its population to annual precipitation gradient. The natural community of J. przewalskii in Qinghai province was taken as the research object, and a community sample plot was laid out along the annual precipitation gradient. The community characteristics of this species were also investigated. Results showed that (1) annual precipitation increased gradually from northwest to southeast in this area. As annual precipitation increased, the importance of dominant species in the shrub and herb layers of J. przewalskii communities changed significantly (P<0.05). (2) When the annual precipitation was between 169 and 377 mm, the population decreased. Conversely, the population remained stable at annual precipitation of 470 mm, but it increased at annual precipitation of 530 mm. (3) The α diversity index of understory plants was significantly different under various annual precipitation levels (P<0.05). As annual precipitation increased, the Shannon-Wiener index, Simpson index, and species richness of shrub and herb layers increased gradually and reached the maximum values when the annual precipitation was 530 mm. (4) As annual precipitation increased, the β diversity index of the shrub layer fluctuated. Cody and Sorensen indices peaked and reached a trough value when the annual precipitation levels were 470-530 and 281-377 mm, respectively. The β diversity index of the herb layer increased first and then decreased. The Cody and Sorensen indices peaked and reached the trough value when the annual precipitation ranged from 377 mm to 470 mm. The maximum β diversity and the fastest rate of species replacement were observed in this gradient. Annual precipitation significantly affected the age structure and community characteristics of J. przewalskii population. In a forest area with annual precipitation of less than 377 mm, the following measures should be implemented to promote the health and stability of communities: the microtopography of the forest should be transformed, surface roughness should be increased, natural precipitation should be collected, and management and protection should be strengthened to prevent injury to cattle and sheep and thus facilitate natural regeneration.

Key words: annual precipitation gradient, Juniperus przewalskii, community characteristics, species diversity, Qinghai

王童犇,朱芩,侯晓巍,郝家田,李智华,侯琳. 祁连圆柏群落特征沿年降水量梯度的变化格局[J]. 干旱区研究, 2021, 38(6): 1695-1703.

WANG Tongben,ZHU Qin,HOU Xiaowei,HAO Jiatian,LI Zhihua,HOU Lin. Community characteristics of Juniperus przewalskii along annual precipitation gradients[J]. Arid Zone Research, 2021, 38(6): 1695-1703.

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参考文献 29

[1]	Lieth H, Whittaker R H. Modeling the primary productivity of the world[J]. Springer Berlin Heidelberg, 1975, 12(3):237-263.
[2]	孙一梅, 田青, 吕朋, 等. 极端干旱与氮添加对半干旱沙质草地物种多样性、叶性状和生产力的影响[J]. 干旱区研究, 2020, 37(6):1569-1579.
	[ Sun Yimei, Tian Qing, Lyu Peng, et al. Effects of extreme drought and nitrogen addition on species diversity, leaf trait, and productivity in a semiarid sandy grassland[J]. Arid Zone Research, 2020, 37(6):1569-1579. ]
[3]	秦洁, 司建华, 贾冰, 等. 巴丹吉林沙漠植被群落特征与土壤水分关系研究[J]. 干旱区研究, 2021, 38(1):207-222.
	[ Qin Jie, Si Jianhua, Jia Bing, et al. Study on the relationship between vegetation community characteristics and soil moisture in Badain Jaran Desert[J]. Arid Zone Research, 2021, 38(1):207-222. ]
[4]	孙岩, 何明珠, 王立. 降水控制对荒漠植物群落物种多样性和生物量的影响[J]. 生态学报, 2018, 38(7):2425-2433.
	[ Sun Yan, He Mingzhu, Wang Li. Effects of precipitation control on plant diversity and biomass in a desert region[J]. Acta Ecologica Sinica, 2018, 38(7):2425-2433. ]
[5]	李长斌, 彭云峰, 赵殿智, 等. 降水变化和氮素添加对青藏高原高寒草原群落结构和物种多样性的影响[J]. 水土保持研究, 2016, 23(6):185-191.
	[ Li Changbin, Peng Yunfeng, Zhao Dianzhi, et al. Effects of precipitation change and nitrogen addition on community structure and plant diversity in an alpine steppe on the Qinghai-Tibetan Plateau[J]. Research of Soil and Water Conservation, 2016, 23(6):185-191. ]
[6]	武建双, 李晓佳, 沈振西, 等. 藏北高寒草地样带物种多样性沿降水梯度的分布格局[J]. 草业学报, 2012, 21(3):17-25.
	[ Wu Jianshuang, Li Xiaojia, Shen Zhenxi, et al. Distribution pattern of species diversity along precipitation gradient in alpine grassland transect in northern Tibet[J]. Acta Pratacul Turae Sinica, 2012, 21(3):17-25. ]
[7]	Zelnik I, Arni A. Plant species diversity and composition of wet grasslands in relation to environmental factors[J]. Biodiversity and Conservation, 2013, 22(10):2179-2192. doi: 10.1007/s10531-013-0448-x
[8]	姚俊强, 杨青, 刘志辉, 等. 中国西北干旱区降水时空分布特征[J]. 生态学报, 2015, 35(17):5846-5855.
	[ Yao Junqiang, Yang Qing, Liu Zhihui, et al. Spatio-temporal change of precipitation in arid region of the northwest China[J]. Acta Ecologica Sinica, 2015, 35(17):5846-5855. ]
[9]	金敏艳, 李进军, 车宗玺, 等. 祁连山中部祁连圆柏年内径向生长对气候因子的响应[J]. 生态学报, 2020, 40(21):7699-7708.
	[ Jin Minyan, Li Jinjun, Che Zongxi, et al. Intra-annual radial growth responses of Qilian juniper (Juniperus przewalskii) to climate factors in the central Qilian Mountains, northwest China[J]. Acta Ecologica Sinica, 2020, 40(21):7699-7708. ]
[10]	崔英, 王占林, 张得芳, 等. 土壤含水量和光照对祁连圆柏光合生理指标的影响[J]. 西部林业科学, 2019, 48(5):95-100.
	[ Cui Ying, Wang Zhanlin, Zhang Defang, et al. Effects of soil water content and light on physiological indexes of Juniperus przewalskii kom.[J]. Journal of West China Forestry Science, 2019, 48(5):95-100. ]
[11]	吕鸿光. 祁连圆柏抗旱造林技术[J]. 农业工程, 2019, 9(1):98-100.
	[ Lyu Hongguang. Qilian Sabina drought-resistance afforestation technology[J]. Agricultural Engineering, 2019, 9(1):98-100. ]
[12]	施征, 白登忠, 雷静品, 等. 祁连圆柏光合色素与非结构性碳水化合物含量对海拔变化的响应[J]. 西北植物学报, 2012, 32(11):2286-2292.
	[ Shi Zheng, Bai Dengzhong, Lei Jingpin, et al. Variations of chloroplast pigments and non-structural carbohydrates of Sabina przewalshii along altitude in Qilian Mountains timberline[J]. Acta Botanica Boreali-Occidentalia Sinica, 2012, 32(11):2286-2292. ]
[13]	张静, 陈志林, 侯晓巍, 等. 三江源区祁连圆柏群落物种多样性沿海拔梯度的变化格局[J]. 西北植物学报, 2020, 40(10):1759-1767.
	[ Zhang Jing, Hou Zhilin, Hou Xiaowei, et al. Species diversity of Juniperus przewalskii community in Three River Headwater along altitude gradien[J]. Acta Botanica Boreali-Occidentalia Sinica, 2020, 40(10):1759-1767. ]
[14]	田晓萍, 马力, 占玉芳. 祁连山北坡中段祁连圆柏群落学特征的研究[J]. 西北林学院学报, 2015, 30(2):77-83.
	[ Tian Xiaoping, Ma Li, Zhan Yufang. Community characteristics of Sabina przewalshii in northern slope of Qilian Mountains[J]. Journal of Northwest Forestry University, 2015, 30(2):77-83. ]
[15]	康迪, 郭垚鑫, 杜焰玲, 等. 小陇山人工油松林径级结构及林下植物多样性研究[J]. 西北林学院学报, 2012, 27(4):54-59.
	[ Kang Di, Guo Yaoxin, Du Yanling, et al. Diameter-class structure and understory diversity of Pinus tabulaeformis plantations in Xiaolong Mountain[J]. Journal of Northwest Forestry University, 2012, 27(4):54-59. ]
[16]	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.
	[ Fang Jingyun, Wang Xiangping, Shen Zehao, et al. Methods and protocols for plant community inventory[J]. Biodiversity Science, 2009, 17(6):533-548. ]
[17]	张晓龙, 周继华, 蔡文涛, 等. 水分梯度下黑河流域荒漠植物群落多样性特征[J]. 生态学报, 2017, 37(14):4627-4635.
	[ Zhang Xiaolong, Zhou Jihua, Cai Wentao, et al. Diversity characteristics of plant communities in the arid desert of the Heihe basin under different moisture gradients[J]. Acta Ecologica Sinica, 2017, 37(14):4627-4635. ]
[18]	Knapp A K, Ciais P, Smith M D. Reconciling inconsistencies in precipitation-productivity relationships: implications for climate change[J]. New Phytologis, 2017, 214(1):41-47. doi: 10.1111/nph.2017.214.issue-1
[19]	胡亚, 郭新新, 岳平, 等. 水分和养分添加对内蒙古荒漠草原沙生针茅生长与生理特性及其敏感性的影响[J]. 干旱区研究, 2021, 38(2):487-493.
	[ Hu Ya, Guo Xinxin, Yue Ping, et al. Effects of water and nutrient addition on the growth and physiology of Stipa glareosa in a desert steppe in Inner Mongolia[J]. Arid Zone Research, 2021, 38(2):487-493. ]
[20]	丁龙, 赵慧敏, 曾文静, 等. 五种西北旱区植物对干旱胁迫的生理响应[J]. 应用生态学报, 2017, 28(5):1455-1463.
	[ Ding Long, Zhao Huimin, Zeng Wenjing, et al. Physiological responses of five plants in northwest China arid area under drought stress[J]. Chinese Journal of Applied Ecology, 2017, 28(5):1455-1463. ]
[21]	Schenk H J, Jackson R B. Rooting depths, lateral root spreads and below-ground/above-ground allometries of plants in water-limited ecosystems[J]. Journal of Ecology, 2010, 90(6):480-490. doi: 10.1046/j.1365-2745.2002.00682.x
[22]	Jackson R B. Belowground consequences of vegetation change and their treatment in models[J]. Ecological Applications, 2000, 10(2):470-483. doi: 10.1890/1051-0761(2000)010[0470:BCOVCA]2.0.CO;2
[23]	干珠扎布, 段敏杰, 郭亚奇, 等. 喷灌对藏北高寒草地生产力和物种多样性的影响[J]. 生态学报, 2015, 35(22):7485-7493.
	[ H Ganjurjav, Duan Minjie, Guo Yaqi, et al. Effects of irrigation on alpine grassland Northern Tibet[J]. Acta Ecologica Sinica, 2015, 35(22):7485-7493. ]
[24]	Liu H L, Shi X, Wang J C, et al. Effects of sand burial, soil water content and distribution pattern of seeds in sand on seed germination and seedling survival of Eremosparton songoricum (Fabaceae), a rare species inhabiting the moving sand dunes of the Gurbantunggut Desert of China[J]. Plant and Soil, 2011, 345(1-2):69-87. doi: 10.1007/s11104-011-0761-7
[25]	Ehleringer S. Water use trade-offs and optimal adaptations to pulse-driven arid ecosystems[J]. Journal of Ecology, 2001, 89(3):464-480. doi: 10.1046/j.1365-2745.2001.00576.x
[26]	Yuan Z Y, Chen H. Global trends in senesced-leaf nitrogen and phosphorus[J]. Global Ecology and Biogeography, 2010, 18(5):532-542. doi: 10.1111/geb.2009.18.issue-5
[27]	张志南, 武高林, 王冬, 等. 黄土高原半干旱区天然草地群落结构与土壤水分关系[J]. 草业学报, 2014, 23(6):313-319.
	[ Zhang Zhinan, Wu Gaolin, Wang Dong, et al. Plant community structure and soil moisture in the semi-arid natural grassland of the Loess Plateau[J]. Acta Pratacul Turae Sinica, 2014, 23(6):313-319. ]
[28]	王乐, 赵利清, 陈育, 等. 西鄂尔多斯草原化荒漠植物群落多样性[J]. 干旱区研究, 2015, 32(2):258-265.
	[ Wang Le, Zhao Liqing, Chen Yu, et al. Plant community diversity of steppification desert in West Ordos[J]. Arid Zone Research, 2015, 32(2):258-265. ]
[29]	Jankowski J E, Ciecka A L, Rabenold M. Beta diversity along environmental gradients: Implications of habitat specialization in tropical montane landscapes[J]. Journal of Animal Ecology, 2009, 78(2):315-327. doi: 10.1111/j.1365-2656.2008.01487.x pmid: 19040686

样点	样地数	经纬度	海拔/m	坡度/（°）	坡向	林分密度/(株·hm^-2)	龄组	胸径/cm	树高/m	林冠郁闭度
DLH	19	37°29′11″~37°29′25″N 97°19′40″~97°20′50″E	3641±13ab	30.50±1.46a	阳坡	523.75±19.15a	中龄林	33.4±1.6a	6.1±0.3bc	0.37±0.02c
DL	18	37°01′10″~37°02′34″N 98°39′45″~98°39′56″E	3744±45a	29.93±1.44a	阳坡	541.67±28.31a	中龄林	33.6±1.8a	5.5±0.4c	0.41±0.04c
XH	20	35°59′28″~36°16′40″N 98°06′30″~98°20′10″E	3157±143c	30.00±2.12a	阳坡	616.67±39.09a	中龄林	32.7±1.8a	10.1±0.5a	0.43±0.03bc
HZ	17	35°01′29″~35°04′20″N 100°07′23″~100°09′36″E	3529±74b	31.48±1.72a	阳坡	622.06±33.62a	中龄林	18.7±1.2b	7.2±0.2b	0.48±0.02b
ZK	18	35°11′52″~35°18′35″N 101°52′06″~101°57′41″E	3601±52ab	32.97±0.78a	阳坡	628.13±41,32a	中龄林	17.6±1.8b	6.4±0.8bc	0.56±0.03a

层次	种名	年降水量/mm
层次	种名	169	281	377	470	530
乔木层	祁连圆柏（Juniperus przewalskii）	100.00±0.00	100.00±0.00	100.00±0.00	100.00±0.00	100.00±0.00
灌木层	金露梅（Potentilla fruticosa）	61.02±1.64a	22.29±1.02b	39.41±2.21ab	32.12±1.89b	22.39±3.71b
	银露梅（Potentilla glabra）	18.29±1.83b	0.00±0.00	15.48±1.31b	41.79±1.63a	23.2±1.81b
	鲜黄小檗（Berberis diaphana）	16.14±1.39b	58.37±3.79a	4.01±0.38d	9.03±0.86c	7.27±2.67cd
	长刺茶藨子（Ribes alpestre）	0.00±0.00	0.00±0.00	20.00±1.34	0.00±0.00	0.00±0.00
	高山柳（Salix cupularis）	1.03±0.69c	16.67±1.57a	0.00±0.00	0.00±0.00	3.48±0.26b
	拟小檗（Berberis parapruinosa）	0.00±0.00	0.00±0.00	0.00±0.00	0.00±0.00	17.98±2.27
草本层	披针叶苔草（Carex lanceolata）	31.34±2.14a	30.39±1.36a	25.73±1.18a	27.64±3.04a	11.85±1.43a
	珠芽蓼（Polygonum viviparum）	11.44±2.82ab	20.13±2.22a	23.21±2.47a	6.16±1.64b	7.19±2.42b
	披碱草（Elymus dahuricus）	1.94±0.24b	0.75±0.13b	0.54±0.12b	0.00±0.00	15.1±0.87a
	乳白香青（Anaphalis lactea）	5.43±1.50b	10.65±0.78a	1.84±1.16bc	0.00±0.00	1.18±0.33c

植被层	自变量	平方和	自由度DF	均方MS	F	P
灌木层	H'	2.059	4	0.515	4.995	0.006^**
	D	0.233	4	0.058	3.363	0.031^*
	J_sw	0.265	4	0.066	4.06	0.015^*
	S	39.875	4	9.969	6.093	0.002^**
	Cody	6.091	3	2.03	4.568	0.015^*
	Sorensen	0.034	3	0.011	0.484	0.697
草本层	H'	1.163	4	0.291	5.378	0.002^**
	D	0.043	4	0.011	3.614	0.015^*
	J_sw	0.022	4	0.005	3.039	0.031^*
	S	163.805	4	40.951	2.727	0.046^*
	Cody	275.201	3	91.734	36.362	0.000^**
	Sorensen	0.335	3	0.112	18.283	0.000^**

祁连圆柏群落特征沿年降水量梯度的变化格局

Community characteristics of Juniperus przewalskii along annual precipitation gradients

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