CORRELATIONS BETWEEN METEOROLOGICAL FACTORS AND LEAF ELEMENT CONTENTS IN DESERT PLANT REAUMURIA SOONGORICA

doi:10.3773/j.issn.1005-264x.2008.04.013

Abstract

Abstract:

Aims Reaumuria soongoricais a major dominant of desert shrub vegetation in arid regions of China. Our objectives were to investigate correlations between foliar characteristics of this desert plant and meteorological factors and to identify the major factor influencing variations in different environments.

Methods We collected 407 individuals of R. soongorica from 21 natural populations in its major area of distribution in northwestern China and measured the nitrogen, phosphorus, potassium and leaf water content and stable carbon isotope composition in leaves. Meteorological data, including mean annual precipitation and temperature, evaporation, mean relative humidity and duration of sunshine, were collected from the Cold and Arid Environmental and Engineering Research Institute, Chinese Academy of Sciences. The relationships between foliar characteristics and meteorological factors were analyzed by simple linear regression and Pearson's correlation.

Important findings Variation of leaf nitrogen content in R. soongorica was due to the complex effect of meteorological factors. Mean relative humidity was the limiting factor that affected leaf potassium content and stable carbon isotope composition. Evaporation and duration of sunshine were the key factors influencing leaf phosphorus content and water content, respectively. The impacts of climate conditions on foliar characteristics of R. soongorica were notable, and the contributions of different meteorological factors to foliar characteristics differed significantly. This pattern of variation in foliar characteristics responded to different meteorological conditions, reflecting the environmental status and the stable extent of desert ecosystems dominated by R. soongorica.

Key words: Reaumuria soongorica, foliar characteristic, meteorological factors, desert ecosystem

MA Jian-Ying, FANG Xiang-Wen, XIA Dun-Sheng, DUAN Zheng-Hu, CHEN Fa-Hu, WANG Gang. CORRELATIONS BETWEEN METEOROLOGICAL FACTORS AND LEAF ELEMENT CONTENTS IN DESERT PLANT REAUMURIA SOONGORICA[J]. Chin J Plant Ecol, 2008, 32(4): 848-857.

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https://www.plant-ecology.com/EN/Y2008/V32/I4/848

Figures/Tables 6

References 43

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种群Population	采样地点 Sampling sites	叶片N含量 Leaf N content (%)	叶片P含量 Leaf P content (%)	叶片K含量 Leaf K content (%)	叶片含水量 Leaf water content (%)	δ¹³C (‰)
1	新疆呼图壁 Hutubi Xinjiang	2.63 ± 0.34	0.12 ± 0.008	0.65 ± 0.05	59.34 ± 1.62	-27.34 ± 0.21
2	新疆沙湾 Shawan Xinjiang	2.80 ± 0.20	0.17 ± 0.013	0.59 ± 0.06	62.00 ± 1.73	-26.43 ± 0.21
3	拜城县黑泽 Heize Baicheng	2.34 ± 0.16	0.07 ± 0.011	0.67 ± 0.04	58.97 ± 1.36	-27.29 ± 0.25
4	拜城县老虎台 Laohutai Baicheng	2.22 ± 0.15	0.05 ± 0.016	0.61 ± 0.06	61.07 ± 1.84	-26.16 ± 0.20
5	新疆伊吾盐池 Yanchi Yiwu	1.98 ± 0.15	0.14 ± 0.028	0.73 ± 0.03	55.28 ±1.30	-26.12 ± 0.17
6	伊吾下马崖 Xiamaya Yiwu	2.54 ± 0.18	0.16 ± 0.10	0.84 ± 0.05	57.07 ± 1.35	-25.21 ± 0.19
7	安西县红柳保护区South of Anxi	2.36 ± 0.16	0.17 ± 0.050	0.88 ± 0.08	59.57 ± 1.41	-24.68 ± 0.28
8	安西县北大桥 North bridge Anxi	2.00 ± 0.12	0.08 ± 0.014	0.81 ± 0.13	58.42 ± 1.58	-25.39 ± 0.12
9	张掖民乐 Minle Zhangye	2.42 ± 0.15	0.09 ± 0.010	0.65 ± 0.06	62.03 ± 1.25	-27.18 ± 0.28
10	张掖临泽 Linze Zhangye	2.87 ± 0.20	0.17 ± 0.018	0.56 ± 0.04	64.70 ±1.26	-25.01 ± 0.30
11	张掖市北 North of Zhangye	2.51 ± 0.19	0.07 ± 0.014	0.65 ± 0.05	64.34 ± 2.18	-27.64 ± 0.21
12	银川市(古窑子) Guyaozi Yinchuan	1.78 ± 0.11	0.09 ± 0.009	0.52 ± 0.03	64.58 ± 1.02	-27.43 ± 0.17
13	银川市黄河南 South of Yinchuan	2.57 ± 0.22	0.12 ± 0.028	0.55 ± 0.04	69.47 ±1.95	-26.86 ± 0.21
14	阿拉善左旗北 North of Alashan	1.80 ± 0.09	0.06 ± 0.009	0.68 ± 0.03	61.57 ± 1.20	-27.35 ± 0.18
15	阿拉善腰坝镇 Yaoba Alashan	2.52 ± 0.12	0.08 ± 0.008	0.92 ± 0.02	61.41 ± 1.00	-25.79 ± 0.20
16	沙坡头Shapotou	2.89 ± 0.23	0.08 ± 0.010	0.65 ± 0.04	62.75 ± 0.92	-26.92 ± 0.24
17	中卫县南 South of Zhongwei	2.46 ± 0.23	0.10 ± 0.014	0.55 ± 0.05	62.65 ± 1.27	-27.47 ± 0.21
18	甘肃景泰白墩子 Baidunzi Jingtai	2.35 ± 0.20	0.19 ± 0	0.73 ± 0	67.72 ± 0	-26.04 ± 0.27
19	白银 Nouth Baiyin	2.34 ± 0.21	0.11 ± 0.020	0.72 ± 0.05	68.43 ± 1.20	-26.67 ± 0.16
20	甘肃铝厂Gansu aluminium factory	2.86 ± 0.11	0.08 ± 0.011	0.75 ± 0.07	65.43 ± 0.50	-26.90 ± 0.31
21	皋兰 Gaolan Gansu	2.17 ± 0.12	0.11 ± 0.004	0.68 ± 0.03	61.05 ± 1.11	-27.00 ± 0.23
样本量 Sample number		399	337	337	359	407
最大值 Maximum		4.48	1.0023	2.08	76.54	-22.77
最小值 Minimum		0.94	0.0072	0.238	48.97	-29.85
平均值 Mean		2.40	0.1079	0.67	62.28	-26.52
F 值 F-value for population difference		18.046^***	7.886^***	9.616^***	23.399^***	16.651^***

种群Population	采样地点 Sampling sites	叶片N含量 Leaf N content (%)	叶片P含量 Leaf P content (%)	叶片K含量 Leaf K content (%)	叶片含水量 Leaf water content (%)	δ¹³C (‰)
1	新疆呼图壁 Hutubi Xinjiang	2.63 ± 0.34	0.12 ± 0.008	0.65 ± 0.05	59.34 ± 1.62	-27.34 ± 0.21
2	新疆沙湾 Shawan Xinjiang	2.80 ± 0.20	0.17 ± 0.013	0.59 ± 0.06	62.00 ± 1.73	-26.43 ± 0.21
3	拜城县黑泽 Heize Baicheng	2.34 ± 0.16	0.07 ± 0.011	0.67 ± 0.04	58.97 ± 1.36	-27.29 ± 0.25
4	拜城县老虎台 Laohutai Baicheng	2.22 ± 0.15	0.05 ± 0.016	0.61 ± 0.06	61.07 ± 1.84	-26.16 ± 0.20
5	新疆伊吾盐池 Yanchi Yiwu	1.98 ± 0.15	0.14 ± 0.028	0.73 ± 0.03	55.28 ±1.30	-26.12 ± 0.17
6	伊吾下马崖 Xiamaya Yiwu	2.54 ± 0.18	0.16 ± 0.10	0.84 ± 0.05	57.07 ± 1.35	-25.21 ± 0.19
7	安西县红柳保护区South of Anxi	2.36 ± 0.16	0.17 ± 0.050	0.88 ± 0.08	59.57 ± 1.41	-24.68 ± 0.28
8	安西县北大桥 North bridge Anxi	2.00 ± 0.12	0.08 ± 0.014	0.81 ± 0.13	58.42 ± 1.58	-25.39 ± 0.12
9	张掖民乐 Minle Zhangye	2.42 ± 0.15	0.09 ± 0.010	0.65 ± 0.06	62.03 ± 1.25	-27.18 ± 0.28
10	张掖临泽 Linze Zhangye	2.87 ± 0.20	0.17 ± 0.018	0.56 ± 0.04	64.70 ±1.26	-25.01 ± 0.30
11	张掖市北 North of Zhangye	2.51 ± 0.19	0.07 ± 0.014	0.65 ± 0.05	64.34 ± 2.18	-27.64 ± 0.21
12	银川市(古窑子) Guyaozi Yinchuan	1.78 ± 0.11	0.09 ± 0.009	0.52 ± 0.03	64.58 ± 1.02	-27.43 ± 0.17
13	银川市黄河南 South of Yinchuan	2.57 ± 0.22	0.12 ± 0.028	0.55 ± 0.04	69.47 ±1.95	-26.86 ± 0.21
14	阿拉善左旗北 North of Alashan	1.80 ± 0.09	0.06 ± 0.009	0.68 ± 0.03	61.57 ± 1.20	-27.35 ± 0.18
15	阿拉善腰坝镇 Yaoba Alashan	2.52 ± 0.12	0.08 ± 0.008	0.92 ± 0.02	61.41 ± 1.00	-25.79 ± 0.20
16	沙坡头Shapotou	2.89 ± 0.23	0.08 ± 0.010	0.65 ± 0.04	62.75 ± 0.92	-26.92 ± 0.24
17	中卫县南 South of Zhongwei	2.46 ± 0.23	0.10 ± 0.014	0.55 ± 0.05	62.65 ± 1.27	-27.47 ± 0.21
18	甘肃景泰白墩子 Baidunzi Jingtai	2.35 ± 0.20	0.19 ± 0	0.73 ± 0	67.72 ± 0	-26.04 ± 0.27
19	白银 Nouth Baiyin	2.34 ± 0.21	0.11 ± 0.020	0.72 ± 0.05	68.43 ± 1.20	-26.67 ± 0.16
20	甘肃铝厂Gansu aluminium factory	2.86 ± 0.11	0.08 ± 0.011	0.75 ± 0.07	65.43 ± 0.50	-26.90 ± 0.31
21	皋兰 Gaolan Gansu	2.17 ± 0.12	0.11 ± 0.004	0.68 ± 0.03	61.05 ± 1.11	-27.00 ± 0.23
样本量 Sample number		399	337	337	359	407
最大值 Maximum		4.48	1.0023	2.08	76.54	-22.77
最小值 Minimum		0.94	0.0072	0.238	48.97	-29.85
平均值 Mean		2.40	0.1079	0.67	62.28	-26.52
F 值 F-value for population difference		18.046^***	7.886^***	9.616^***	23.399^***	16.651^***

项目 Item	影响因子 Influence factors	逐步回归方程 Stepwise regression equation	复相关系数 Multiple correlation coefficient	偏相关系数 Partial correlation coefficient	p值^* Sig.
叶片P含量 Leaf P content	气候因子Meteorological factors	P = 0.013 + 0.000 526 E	0.454	0.454	0.067; 0.067
叶片K含量 Leaf K content		K = 0.680-0.05 RH+ 0.009 06 DS	0.748	-0.429; 0.410	0.003; 0.071; 0.083
叶片含水量 Leaf water content		LWC = 75.399-0.005 DS	0.562	-0.562	0.019; 0.019
叶片稳定碳同位素值 δ¹³C		δ¹³C =-23.304-0.049 RH-0.004 MAP	0.778	-0.491; -0.396	0.001; 0.027; 0.066

项目 Item	影响因子 Influence factors	逐步回归方程 Stepwise regression equation	复相关系数 Multiple correlation coefficient	偏相关系数 Partial correlation coefficient	p值^* Sig.
叶片P含量 Leaf P content	气候因子Meteorological factors	P = 0.013 + 0.000 526 E	0.454	0.454	0.067; 0.067
叶片K含量 Leaf K content		K = 0.680-0.05 RH+ 0.009 06 DS	0.748	-0.429; 0.410	0.003; 0.071; 0.083
叶片含水量 Leaf water content		LWC = 75.399-0.005 DS	0.562	-0.562	0.019; 0.019
叶片稳定碳同位素值 δ¹³C		δ¹³C =-23.304-0.049 RH-0.004 MAP	0.778	-0.491; -0.396	0.001; 0.027; 0.066