Population dynamics of main sand-fixing shrubs in the Gurbantunggut Desert

doi:10.7522/j.issn.1000-694X.2020.00103

Journal of Desert Research ›› 2021, Vol. 41 ›› Issue (2): 129-137.DOI: 10.7522/j.issn.1000-694X.2020.00103

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Population dynamics of main sand-fixing shrubs in the Gurbantunggut Desert

Gonglin Li¹(), Dinghai Zhang¹(), Zhishan Zhang², Yigang Hu², Lei Huang², Lining Lu¹

^1.Center for Quantitative Biology，College of Science，Gansu Agricultural University，Lanzhou 730070，China
^2.Shapotou Desert Research and Experimental Station，Northwest Institute of Eco-Environment and Resources，Chinese Academy of Sciences，Lanzhou 730000，China

Received:2020-07-16 Revised:2020-09-23 Online:2021-03-20 Published:2021-03-26
Contact: Dinghai Zhang

Abstract

Abstract:

The study of population dynamics is a prerequisite for understanding the current situation of population survival and development dynamics. In this paper， the age structure of sand-fixing shrubs was analyzed and the static life table and survival curve were established based on our survey of the sand-fixing shrubs under three types of sand dunes （i.e. the fixed sand dunes， the semi-fixed sand dunes and the mobile sand dunes） in the Gurbantunggut Desert. We developed the following conclusions：（1） The survival number of sand-fixing shrubs showed a gradual decrease with age-class and high proportion of sand-fixing shrubs population is young individuals in three habitats. （2） On fixed sand dunes： the population survival curves of Haloxylon ammoolenelron was close to Deevey-Ⅰ type which indicated that its population was degonerating； Haloxylon persicum population was close to Deevey-Ⅱ type survival curve， the population was in a dynamic and stable state. （3） On semi-fixed sand dunes： H.persicum belong to Deevey-Ⅱ type survival curve， its population in a relatively stable state； Calligonum mongolicum and Artemesia ordosica all belong to Deevey-Ⅰ type survival curve， which shows that these populations were in a degraded state. （4） On mobile sand dunes： C.mongolicum population presented Deevey-Ⅲ type survival curve， which had great growth potential； H.persicum population presented Deevey-Ⅱ type survival curve， which shows that the population was in a relatively stable state； A.ordosica population presented Deevey-Ⅰ type survival curve， which indicates that the populations was in unstable state of degradation.

Key words: Gurbantunggut Desert, population dynamics, life table, survival curve

CLC Number:

Q948.15

Gonglin Li, Dinghai Zhang, Zhishan Zhang, Yigang Hu, Lei Huang, Lining Lu. Population dynamics of main sand-fixing shrubs in the Gurbantunggut Desert[J]. Journal of Desert Research, 2021, 41(2): 129-137.

Figures/Tables 6

References 37

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沙丘类型	位置	海拔/m	面积	主要固沙灌木（株数）	0—30 cm土壤平均含水量/%
固定沙丘（北沙窝）	44o22′24″N, 87o55′12″E	390—400	40 m×148 m	梭梭（1 059），白梭梭（1 132）	1.52
半固定沙丘（石油管理处）	44o33′34″N, 88o16′35″E	460—485	40 m×180 m	白梭梭（189），沙拐枣（230），油蒿（933）	1.09
流动沙丘（彩南）	44o56′49″N, 88o32′28″E	390—400	40 m×148 m	白梭梭（317），沙拐枣（410），油蒿（320）	0.48

沙丘类型	位置	海拔/m	面积	主要固沙灌木（株数）	0—30 cm土壤平均含水量/%
固定沙丘（北沙窝）	44o22′24″N, 87o55′12″E	390—400	40 m×148 m	梭梭（1 059），白梭梭（1 132）	1.52
半固定沙丘（石油管理处）	44o33′34″N, 88o16′35″E	460—485	40 m×180 m	白梭梭（189），沙拐枣（230），油蒿（933）	1.09
流动沙丘（彩南）	44o56′49″N, 88o32′28″E	390—400	40 m×148 m	白梭梭（317），沙拐枣（410），油蒿（320）	0.48

固沙灌木	Ⅰ	Ⅱ	Ⅲ	Ⅳ	Ⅴ	Ⅵ
梭梭	0—0.15	0.15—1	1—2.5	2.5—6	6—15	>15
白梭梭	0—0.15	0.15—1	1—2.5	2.5—6	6—10	>10
沙拐枣	0—0.1	0.1—0.2	0.2—0.35	0.35—0.5	0.5—1	>1
油蒿	0—0.05	0.05—0.15	0.15—0.25	0.25—0.35	0.35—0.6	>0.6

固沙灌木	Ⅰ	Ⅱ	Ⅲ	Ⅳ	Ⅴ	Ⅵ
梭梭	0—0.15	0.15—1	1—2.5	2.5—6	6—15	>15
白梭梭	0—0.15	0.15—1	1—2.5	2.5—6	6—10	>10
沙拐枣	0—0.1	0.1—0.2	0.2—0.35	0.35—0.5	0.5—1	>1
油蒿	0—0.05	0.05—0.15	0.15—0.25	0.25—0.35	0.35—0.6	>0.6

沙丘类型	固沙灌木	Ⅰ	Ⅱ	Ⅲ	Ⅳ	Ⅴ	Ⅵ
固定沙丘	梭梭	843(38.48%)	143(6.53%)	35(1.60%)	22(1.00%)	13(0.59%)	3(0.14%)
固定沙丘	白梭梭	790(36.06%)	257(11.73%)	37(1.69%)	21(0.96%)	20(0.91%)	7(0.32%)
半固定沙丘	白梭梭	91(6.37%)	33(2.44%)	25(1.85%)	23(1.70%)	10(0.74%)	7(0.52%)
	沙拐枣	146(10.80%)	41(3.03%)	29(2.14%)	9(0.67%)	4(0.30%)	1(0.07%)
	油蒿	523(38.68%)	220(16.27%)	90(6.66%)	47(3.48%)	46(3.40%)	7(0.52%)
流动沙丘	白梭梭	252(24.07%)	45(4.30%)	8(0.76%)	7(0.67%)	3(0.29%)	2(0.19%)
	沙拐枣	261(24.93%)	69(6.59%)	33(3.15%)	19(1.81%)	15(1.43%)	13(1.24%)
	油蒿	168(16.05%)	87(8.31%)	36(3.44%)	15(1.43%)	10(0.96%)	4(0.38%)

Population dynamics of main sand-fixing shrubs in the Gurbantunggut Desert

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沙丘类型	固沙灌木	x	n_x	l_x	lnl_x	d_x	L_x	T_x	q_x	e_x	K_x	S_x
固定沙丘	梭梭	Ⅰ	843	1 000	6.91	830	585	758	0.83	0.76	1.77	0.17
		Ⅱ	143	170	5.14	128	106	173	0.75	1.02	1.40	0.25
		Ⅲ	35	42	3.74	16	34	67	0.38	1.60	0.48	0.62
		Ⅳ	22	26	3.26	11	21	33	0.42	1.27	0.55	0.58
		Ⅴ	13	15	2.71	11	10	12	0.73	0.80	1.32	0.27
		Ⅵ	3	4	1.39	4	2	2	1.00	0.50	0.00	0.00
	白梭梭	Ⅰ	790	1 000	6.91	675	663	934	0.68	0.93	1.13	0.33
		Ⅱ	257	325	5.78	278	186	271	0.86	0.83	1.93	0.14
		Ⅲ	37	47	3.85	20	37	85	0.43	1.81	0.55	0.57
		Ⅳ	21	27	3.30	2	26	48	0.07	1.78	0.08	0.93
		Ⅴ	20	25	3.22	16	17	22	0.64	0.88	1.02	0.36
		Ⅵ	7	9	2.20	9	5	5	1.00	0.56	0.00	0.00
半固定沙丘	白梭梭	Ⅰ	91	1 000	6.91	637	682	1 580	0.64	1.58	1.02	0.36
		Ⅱ	33	363	5.89	88	319	898	0.24	2.47	0.27	0.76
		Ⅲ	25	275	5.62	22	264	579	0.08	2.11	0.09	0.92
		Ⅳ	23	253	5.53	143	182	315	0.57	1.25	0.83	0.43
		Ⅴ	10	110	4.70	33	94	133	0.30	1.21	0.36	0.70
		Ⅵ	7	77	4.34	77	39	39	1.00	0.51	0.00	0.00
	沙拐枣	Ⅰ	146	1 000	6.91	719	641	1 078	0.72	1.08	1.27	0.28
		Ⅱ	41	281	5.64	82	240	437	0.29	1.56	0.35	0.71
		Ⅲ	29	199	5.29	137	131	197	0.69	0.99	1.16	0.31
		Ⅳ	9	62	4.13	35	45	66	0.56	1.06	0.83	0.44
		Ⅴ	4	27	3.30	20	17	21	0.74	0.78	1.35	0.26
		Ⅵ	1	7	1.95	7	4	4	1.00	0.57	0.00	0.00
	油蒿	Ⅰ	523	1 000	6.91	579	711	1 286	0.58	1.29	0.87	0.42
		Ⅱ	220	421	6.04	249	297	575	0.59	1.37	0.89	0.41
		Ⅲ	90	172	5.15	82	131	278	0.48	1.62	0.65	0.52
		Ⅳ	47	90	4.50	2	89	147	0.02	1.63	0.02	0.98
		Ⅴ	46	88	4.48	75	51	58	0.85	0.66	1.92	0.15
		Ⅵ	7	13	2.56	13	7	7	1.00	0.54	0.00	0.00
流动沙丘	白梭梭	Ⅰ	252	1 000	6.91	821	590	760	0.82	0.76	1.72	0.18
		Ⅱ	45	179	5.19	147	106	170	0.82	0.95	1.72	0.18
		Ⅲ	8	32	3.47	4	30	64	0.13	2.00	0.14	0.88
		Ⅳ	7	28	3.33	16	20	34	0.57	1.21	0.85	0.43
		Ⅴ	3	12	2.48	4	10	14	0.33	1.17	0.40	0.67
		Ⅵ	2	8	2.08	8	4	4	1.00	0.50	0.00	0.00
	沙拐枣	Ⅰ	261	1 000	6.91	736	632	1 071	0.74	1.07	1.33	0.26
		Ⅱ	69	264	5.58	138	195	439	0.52	1.66	0.74	0.48
		Ⅲ	33	126	4.84	53	100	244	0.42	1.94	0.55	0.58
		Ⅳ	19	73	4.29	16	65	144	0.22	1.97	0.25	0.78
		Ⅴ	15	57	4.04	7	54	79	0.12	1.39	0.13	0.88
		Ⅵ	13	50	3.91	50	25	25	1.00	0.50	0.00	0.00
	油蒿	Ⅰ	168	1 000	6.91	482	759	1 406	0.48	1.41	0.66	0.52
		Ⅱ	87	518	6.25	304	366	647	0.59	1.25	0.88	0.41
		Ⅲ	36	214	5.37	125	152	281	0.58	1.31	0.88	0.42
		Ⅳ	15	89	4.49	29	75	129	0.33	1.45	0.40	0.67
		Ⅴ	10	60	4.09	36	42	54	0.60	0.90	0.91	0.40
		Ⅵ	4	24	3.18	24	12	12	1.00	0.50	0.00	0.00

沙丘类型	固沙灌木	类型	a	b	R²	F	P
固定沙丘	梭梭	Ⅰ	7.40	1.01	0.95	82.48	0.00
		Ⅱ	9.40	0.29	0.94	68.03	0.00
		Ⅲ	8.00	0.77	0.85	22.97	0.01
	白梭梭	Ⅰ	7.39	0.91	0.92	44.24	0.00
		Ⅱ	8.40	0.22	0.95	78.52	0.00
		Ⅲ	7.61	0.61	0.92	47.47	0.00
半固定沙丘	白梭梭	Ⅰ	7.15	0.47	0.94	63.04	0.00
		Ⅱ	7.35	0.09	0.95	73.47	0.00
		Ⅲ	7.05	0.24	0.90	37.10	0.00
	沙拐枣	Ⅰ	7.84	0.94	0.98	234.68	0.00
		Ⅱ	9.52	0.23	0.92	48.41	0.00
		Ⅲ	8.14	0.60	0.77	13.71	0.02
	油蒿	Ⅰ	7.65	0.77	0.94	57.52	0.00
		Ⅱ	8.60	0.17	0.87	25.88	0.01
		Ⅲ	7.72	0.45	0.74	11.53	0.03
流动沙丘	白梭梭	Ⅰ	7.15	0.93	0.91	38.82	0.00
		Ⅱ	8.20	0.24	0.97	123.53	0.00
		Ⅲ	7.43	0.66	0.96	101.18	0.00
	沙拐枣	Ⅰ	6.95	0.58	0.88	29.76	0.01
		Ⅱ	7.16	0.11	0.92	48.37	0.00
		Ⅲ	6.93	0.33	1.00	878.56	0.00
	油蒿	Ⅰ	7.65	0.74	0.99	556.15	0.00
		Ⅱ	8.32	0.15	0.98	238.10	0.00
		Ⅲ	7.63	0.41	0.88	29.51	0.01

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[6]	Zhang Dinghai, Yang Liping, Zhang Zhishan. Numeric Dynamics of Artemisia ordosica Population under Different Habitats in Southeastern Edge of the Tengger Desert [J]. JOURNAL OF DESERT RESEARCH, 2017, 37(5): 893-901.
[7]	Wang Yinya, Li Chenhua, Ma Jian. Effects of Desert Reclamation on Soil Microbial Community and Microbial Diversity [J]. JOURNAL OF DESERT RESEARCH, 2017, 37(3): 514-522.
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[9]	Zhu Bingjian, Yin Benfeng, Zhang Yuanming. Seasonal Dynamics of Non-structural Carbohydrates Contents of Syntrichia caninervis among Different Microhabitats [J]. JOURNAL OF DESERT RESEARCH, 2017, 37(2): 268-275.
[10]	Li Jun, Wang Xinjun, Jia Hongtao, Zhao Chengyi. Multi-scale Spatial Heterogeneity of Soil Moisture in the South Gurbantunggut Desert during Dry Period [J]. JOURNAL OF DESERT RESEARCH, 2016, 36(6): 1628-1636.
[11]	Han Caixia, Zhang Bingchang, Zhang Yuanming, Tai Fengjiao, Zhang Chi, Shao Hua. Diversity of Culturable Fungi from the Moss Crusts Growing in the Southern Gurbantunggut Desert [J]. JOURNAL OF DESERT RESEARCH, 2016, 36(4): 1050-1055.
[12]	Chen Yongbao, Hu Shunjun, Zhun Hai, Luo Gen. Soil Evaporation of Haloxylon ammodendron Community in the Southern Gurbantunggut Desert [J]. JOURNAL OF DESERT RESEARCH, 2016, 36(1): 190-198.
[13]	Chen Guopeng, Zhao Wenzhi. Age Structure and Dynamics of Salix psammophila Branches in Southern Edge of the Mu Us Sandy Land [J]. JOURNAL OF DESERT RESEARCH, 2015, 35(6): 1520-1526.
[14]	Wang Jun, Li Zhen, Zhou Zihang, Wang Ping, Jiao Jian, Li Yi. Preliminary Study on Reaumurta soongorica Population Dynamics in Lanzhou Semi-desert Vegetation Area [J]. JOURNAL OF DESERT RESEARCH, 2014, 34(5): 1268-1276.
[15]	Li Guodong, Zhang Yuanming. Interactive Effects of Biological Soil Crusts and Seed Appendages on Seed Germination of Four Desert Species [J]. JOURNAL OF DESERT RESEARCH, 2014, 34(3): 725-731.