[1] LEVINEL J M, LAMBERS J H R. The importance of niches for maintenance of species diversity[J]. Nature, 2009, 461(7261): 254-257.
[2] THIBAUT L M, CONNOLLY S R. Understanding diversity-stability relationships: towards a unified model of portfolio effects[J]. Ecol Lett, 2013, 16(2): 140-150.
[3] BURKE A. Classification and ordination of plant communities of the Naukluft mountains, Namibia [J]. J Veg Sci, 2001, 12(1): 53-60.
[4] 张雪妮, 吕光辉, 王庭权, 等.荒漠区垂直河岸带植物多样性格局及其成因[J].生态学报, 2015, 35(18):5966-5974.

ZHANG Xueni, LÜ Guanghui, WANG Tingquan, et al. Patterns and mechanisms influencing plant diversity in an arid desert region riparian zone of the Aqikesu River, Xinjiang, China [J]. Acta Ecol Sin, 2015, 35(18): 5966-5974.
[5] 张锦春, 王继和, 赵明, 等.库姆塔格沙漠南缘荒漠植物群落多样性分析[J].植物生态学报, 2006, 30(3):375-382.

ZHANG Jinchun, WANG Jihe, ZHAO Ming, et al. Plant community and species diversity in the south fringe of Kumtag Desert [J]. J Plant Ecol, 2006, 30(3):375-382.
[6] 袁蕾, 周华荣, 宗召磊, 等.乌鲁木齐地区典型灌木群落结构特征及其多样性研究[J].西北植物学报, 2014, 34(3):595-603.

YUAN Lei, ZHOU Huarong, ZONG Zhaolei, et al. Structural characteristics and diversity of typical shrub plant community in the Urumqi Region [J]. Acta Bot Boreal-Occident Sin, 2014, 34(3):595-603.
[7] 孟莹莹, 周莉, 周旺明, 等.长白山风倒区植被恢复26年后物种多样性变化特征[J].生态学报, 2015, 35(1): 142-149.

MENG Yingying, ZHOU Li, ZHOU Wangming, et al. Characteristics of plant species diversity in a windthrow area on Changbai Mountain after 26 years of natural recovery [J]. Acta Ecol Sin, 2015, 35(1): 142-149.
[8]

GASTON K J. Global patterns in biodiversity [J]. Nature, 2000, 405(6783): 220-227.
[9] 崔宁洁, 陈小红, 刘洋, 等.不同林龄马尾松人工林林下灌木和草本多样性[J].生态学报, 2014, 34(15):4313-4323.

CUI Ningjie, CHEN Xiaohong, LIU Yang, et al. Shrub and herb diversity at different ages of Pinus massoniana plantation [J]. Acta Ecol Sin, 2014, 34(15): 4313-4323.
[10] 杨立学, 孙跃志.不同林龄核桃楸林下植物多样性的差异[J].生态学杂志, 2013, 32(4):807-812.

YANG Lixue, SUN Yuezhi. Biodiversity of understory vegetation in different-aged Manchurian walnut plantations [J]. Chin J Ecol, 2013, 32(4): 807-812.
[11] 蒋万杰, 杜连海, 刘桂林, 等.松山自然保护区的生物多样性及其威胁因素研究[J].林业建设, 2008(4): 6-9.

JIANG Wanjie, DU Lianhai, LIU Guilin, et al. Biodiversity and threatening factors in Songshan National Nature Reserve [S]. For Construct, 2008(4): 6-9.
[12] 苏日古嘎, 张金屯, 王永霞.北京松山自然保护区森林群落物种多样性及其神经网络预测[J].生态学报, 2013, 33(11): 3394-3403.

Suriguga, ZHANG Jintun, WANG Yongxia. Species diversity of forest communities and its forecasting by neural network in the Songshan National Nature Reserve, Beijing [J]. Acta Ecol Sin, 2013, 33(11): 3394-3403.
[13] 宋永昌.植被生态学[M].上海:华东师范大学出版社, 2001:550-579.
[14] 邢韶华, 袁秀, 林大影, 等.北京雾灵山自然保护区胡桃楸群落结构[J].浙江林学院学报, 2006, 23(3):290-296.

XING Shaohua, YUAN Xiu, LIN Daying, et al. Juglans mandshurica community structure in Nature Reserve of Mount Wuling [J]. J Zhejiang For Coll, 2006, 23(3):290-296.
[15] 吴征镒.中国植被[M].北京:科学出版社, 1980.
[16]

JENNINGS M D, FABER-LANGENDOEN D, LOUCKS O L, et al. Standards for associations and alliances of the US National Vegetation Classification [J]. Ecol Monogr, 2009, 79(2): 173-199.
[17] 张金屯.数量生态学[M].北京:科学出版社, 2003.
[18]

BOHANEK J R, GRONINGER J W. Productivity of European black alder (Alnus glutinosa) interplanted with black walnut (Juglans nigra) in Illinois, USA [J]. Agrofor Syst, 2005, 64(2): 99-106.
[19] 马斌, 周志宇, 张莉丽, 等.阿拉善左旗植物物种多样性空间分布特征[J].生态学报, 2008, 28(12):6099-6106.

MA Bin, ZHOU Zhiyu, ZHANG Lili, et al. The spatial distribution characteristics of plant diversity in Alex Left Banner [J]. Acta Ecol Sin, 2008, 28(12):6099-6106.
[20] 赵成章, 石福习, 董小刚, 等.祁连山北坡退化林地植被群落的自然恢复过程及土壤特征变化[J].生态学报, 2011, 31(1):115-122.

ZHAO Chengzhang, SHI Fuxi, DONG Xiaogang, et al. Dynamics of vegetation structure and soil properties in the natural restoration process of degraded woodland on the northern slope of Qilian Mountains, northwestern China [J]. Acta Ecol Sin, 2011, 31(1):115-122.
[21] 冶民生, 关文彬, 吴斌, 等.岷江干旱河谷植物群落的复杂性[J].生态学报, 2006, 26(10):3159-3165.

YE Minsheng, GUAN Wenbin, WU Bin, et al. Plant community complexity in the arid valley of Minjiang River [J]. Acta Ecol Sin, 2006, 26(10): 3159-3165.
[22] 吴彦, 刘庆, 何海, 等.亚高山针叶林人工恢复过程中物种多样性变化[J].应用生态学报, 2004, 15(8):1301-1306.

WU Yan, LIU Qing, HE Hai, et al. Dynamics of species diversity in artificial restoration process of subalpine coniferous forest [J]. Chin J Appl Ecol, 2004, 15(8): 1301-1306.
[23]

PONDER F J, TADROS S H. Juglone concentration in soil beneath black walnut interplanted with nitrogen-fixing species [J]. J Chem Ecol, 1985, 11(7): 937-942.