Ecological studies on relationship between the process of des ertification and vegetation dynamics in the west of northeast China:Vegetation o rdination

Abstract

Abstract: Based on the data obtained from 72 plots of plant community and 276 plant species in Hulunbeier Sandy Land and Kerqin Sandy Land in the northeast deserti fication region of China, TWINSPAN analysis and DCA (Detrended Correspondence An alysis) were carried out. The result of DCA ordination reflected sufficiently th e relationship between vegetation in sandy land and geographical, climatic, topo graphical, hydrological, disturbance factors. The axis 1, axis 2, axis 4 of DCA ordination reflected water, soil and heats gradients of vegetation distribution in sandy land respectively. The figure of DCA ordination of axis 1 & axis 2, and axis 1, axis 2 & axis 4 reflected the ecological regulations between vegetation and sandy desertification. Combined with qualitative and quantitative factors, the linear regression model was established between DCA ordination axis and geog raphy, climate, topography, hydrology and disturbances by using dual selection stepwise regression analysis.

Key words: West of northeast China, Sandy desertification r egion, Vegetation, Ordination, growth, Taxus wallichina var. mairei, form quality, Cunninghamia lanceolata, gap size

CLC Number:

Q948

GUAN Wenbin . Ecological studies on relationship between the process of des ertification and vegetation dynamics in the west of northeast China:Vegetation o rdination[J]. Chinese Journal of Applied Ecology, 2001, 12(5): 687-691.

References

[1] Guan W-B(关文彬),Zeng D-H(曾德慧),Jiang F-Q(姜凤岐).2000. Ecological studies on the relationship between the process of desertification and vegetation dynamics in the west of northeast China:Vegetation classification. Chin J Appl Ecol(应用生态学报),11(6):907～911 (in Chinese)

[2] Guan Wenbin, Sun Baoping, Jiang Fengqi. 1998. Assessment of the ecological vulnerability on sandy desertification in the west of northeastChina. J Beijing For Univ, 7 (1):15～27

[3] Guan W-B(关文彬),Zeng D-H(曾德慧),Jiang F-Q(姜凤岐)2000.Ecological studies on the relationship between the process of desertification and vegetation dynamics in the west of northeast China:Community diversity and desertification process. Acta Ecol Sin(生态学报),20(1):93-98(in Chinese)

[4] Xu W-D(徐文铎).1986. The relationship between the distribution ofChinese northeastern main vegetation and the climates. Acta Phytoecolet Geobot Sin(植物生态学与地植物学丛刊),10(4):254-263(inChinese)

[5] Xu W-D(徐文铎).1983. Preliminary study of the relationship between the distribution of construction and common species of Chinesenortheastern vegetation and the water and thermal conditions. ActaBot Sin(植物学报),25(3):264～267(in Chinese)

[6] Xu W-D(徐文铎).1985. Thermal index and its application in China.Chin J Ecol(生态学杂志),(3):35～39(in Chinese)

[7] Yim Y & Kira T. 1975. Distribution of forest vegetation and climate inthe Korean Peninsula Ⅰ. Distribution of some indices of thermal climate. Jap J Ecol, 25 (2):77～88

[8] Yim Y & Kira T. 1976. Distribution of forest vegetation and climate inthe Korean Peninsula Ⅱ. Distribution of climatic humidity/Aridity).Jap J Ecol, 26(3):157～164

[9] Zhang X-S(张新时).1989. Probable evaporating index of vegetationand classification by climates. Acta Phytoecol et Geobot Sin(植物生态学与地植物学学报),13(1):1～9(in Chinese)

[10] Zheng H-Y(郑慧莹),Li J-D(李建东),Zhu T-C(祝廷成).1986Classification and ordination of plant communities in the south of Songnen plain. Acta Phytoecol et G eobot Sin(植物生态学与地植物学学报),10(3):171～179(inChinese)

[1]	ZHANG Yuhan, LI Yao, ZHOU Yue, CHEN Yuanjia, AN Shaoshan. Changes of soil nutrients and organic carbon fractions in Caragana korshinskii forests with different restoration years in mountainous areas of southern Ningxia, China [J]. Chinese Journal of Applied Ecology, 2024, 35(3): 639-647.
[2]	XING Jianwei, SONG Jinming, YUAN Huamao, LI Xuegang, DUAN Liqin, QU Baoxiao, WANG Qidong, MA Jun, WANG Yueqi, DAI Jiajia. Biogenic element driving mechanism in the occurrence of Chinese coastal eco-environmental disasters and regulation for ecological environment health [J]. Chinese Journal of Applied Ecology, 2024, 35(2): 564-576.
[3]	ZHANG Yulin, LIU Lingjuan, LIU Shenglong, FANG Wanli, LUO Zhensha, HONG Xuansheng, CHENG Xiangrong. Effects of community structure of Cunninghamia lanceolata sprouting forests with different densities on ecosystem carbon density at the early stage of succession [J]. Chinese Journal of Applied Ecology, 2024, 35(2): 289-297.
[4]	WANG Jianwu, XU Sen, JI Biyong, DU Qun. Effects of topography and stand spatial structure on the diameter at breast height growth of major pioneer tree species of natural broad-leaved mixed forests in Zhejiang Province, China [J]. Chinese Journal of Applied Ecology, 2024, 35(2): 298-306.
[5]	GAN Feifei, ZHAO Lijun, HUO Chanchan, WANG Sheng. Effects of light and water availability on the growth of Aglaia duperreana seedlings [J]. Chinese Journal of Applied Ecology, 2024, 35(2): 439-446.
[6]	WAN Ding, WANG Zhiyuan, TAN Yong, LI Canbin, CHEN Chao, HE Hanhui. Optimization of production-living-ecology spatial pattern in Dongting Lake Ecological Economic Zone based on comprehensive benefits of development and protection [J]. Chinese Journal of Applied Ecology, 2024, 35(1): 255-267.
[7]	QIAN Guixia, WANG Xiaoxin, LI Wu, ZHANG Qianni. Evolution and implementation pathways from desertification prevention and control to sandy land management and use in China [J]. Chinese Journal of Applied Ecology, 2024, 35(1): 8-16.
[8]	WANG Ziqing, ZHANG Ying, WANG Yang, CUI Ya'nan, CAO Chengyou. Effects of revegetation on soil nitrogen-fixation and carbon-fixation microbial communities in the Horqin Sandy Land, China [J]. Chinese Journal of Applied Ecology, 2024, 35(1): 31-40.
[9]	LIU Hongshun, BU Rencang, WANG Zhengwen, CHANG Yu, XIONG Zaiping, QI Li, GAO Yue. Critical influencing factors on vegetation productivity in sandy land of the Northwestern Liaoning Province,China [J]. Chinese Journal of Applied Ecology, 2024, 35(1): 49-54.
[10]	ZHANG Xiuying, CAI Jiangping, WANG Cong, JIANG Zhiyang, LI Hui, WANG Zhengwen, JIANG Yong, ZHANG Yuge. Effects of different fertilization patterns on soil improvement and vegetation restoration of desertified grassland in northwest Liaoning Province, China [J]. Chinese Journal of Applied Ecology, 2024, 35(1): 55-61.
[11]	WANG Guohua, WANG Jiaqi, LIU Jing. Characteristics of vegetation and soil in Caragana korshinskii plantations in the hilly and sandy areas of northwestern Shanxi Province, China [J]. Chinese Journal of Applied Ecology, 2024, 35(1): 62-72.
[12]	LI Jingzhong, XIN Zhenhua, XIE Xiao, XUE Bing, REN Wanxia. Spatio-temporal variations of vegetation cover in semi-arid regions and its response to climate change: A case study of Xilin Gol, Inner Mongolia, China [J]. Chinese Journal of Applied Ecology, 2024, 35(1): 80-86.
[13]	LIN Yachao, GUO Xiaoping, LI Wenye, YANG Fan, LUO Chao, HAO Jiahang, WU Yuxi. Effects of coal mine waste dump on soil seed bank and vegetation distribution pattern [J]. Chinese Journal of Applied Ecology, 2024, 35(1): 95-101.
[14]	SHEN Jikai, HUANG Yimei, HUANG Qian, XU Fengjing. Accumulation of microbial necromass carbon and their contribution to soil organic carbon in different vegetation types on the Loess Plateau, Northwest China [J]. Chinese Journal of Applied Ecology, 2024, 35(1): 124-132.
[15]	ZHANG Yuhan, LI Yao, ZHOU Yue, LIU Chunhui, AN Shaoshan. Distribution characteristics of microbial necromass carbon along soil profiles in different restoration periods of Caragana korshinskii in mountainous areas of Southern Ningxia, China [J]. Chinese Journal of Applied Ecology, 2024, 35(1): 161-168.