Journal of Desert Research ›› 2022, Vol. 42 ›› Issue (5): 122-132.DOI: 10.7522/j.issn.1000-694X.2022.00030
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Wen Zhang1(), Dingding Du1(
), Zhiwen Li1,2, Wangyang Wu1, Xiangjie Li1, Yonghui Bai1
Received:
2022-02-10
Revised:
2022-03-31
Online:
2022-09-20
Published:
2022-09-22
Contact:
Dingding Du
CLC Number:
Wen Zhang, Dingding Du, Zhiwen Li, Wangyang Wu, Xiangjie Li, Yonghui Bai. Grain size characteristics of sediments in sandy land around the Poyang Lake and its influencing factors[J]. Journal of Desert Research, 2022, 42(5): 122-132.
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URL: http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2022.00030
采样点 | 序号 | 地理坐标 | 土地类型 | 植被类型 |
---|---|---|---|---|
庐山市 | 采样点1(LH1—LH3) | 29°19′44″N,116°00′21″E | 流动沙丘 | 无植被 |
采样点2(DC5—DC6) | 29°20′52″N,116°01′17″E | 半流动沙丘 | 无植被 | |
采样点3(DC7—DC8) | 29°20′42″N,116°00′41″E | 固定沙丘 | 水保林内湿地松林 | |
采样点4(DC9—DC11) | 29°20′42″N,116°00′41″E | 固定沙丘 | 水保林内湿地松林 | |
采样点5(DC15—DC16) | 29°20′33″N,116°00′34″E | 固定沙丘 | 湿地松林间地 | |
采样点6(DC17—DC18) | 29°20′33″N,116°00′34″E | 固定沙丘 | 遍布湿地松 | |
都昌县 | 采样点7(DC1—DC2) | 29°22′32″N,116°05′37″E | 固定沙丘 | 遍布湿地松 |
采样点8(DC3—DC4) | 29°22′32″N,116°05′37″E | 固定沙丘 | 旁边生有中华胡枝子 | |
采样点9(PYB1—PYB4) | 29°23′48″N,116°04′05″E | 半固定沙丘 | 遍布狗牙根,种有小棵湿地松 | |
采样点10(PYH5—PYH6) | 29°23′43″N,116°04′05″E | 流动沙丘 | 无植被 | |
采样点11(LJC1—LJC4) | 29°23′53″N,116°05′01″E | 半流动沙丘 | 旁有蔓荆 | |
采样点12(LJCⅡ1—LJCⅡ4) | 29°23′52″N,116°04′22″E | 半固定沙丘 | 有狗牙根 | |
永修县 | 采样点13(DGH1—DGH4) | 29°12′33″N,116°04′09″E | 湿地草滩 | 主要植被为画眉草 |
采样点14(DGH5—DGH7) | 29°12′44″N,116°04′10″E | 湿地草滩 | 主要植被为广州蔊菜、九顶草、丛枝蓼 | |
采样点15(WJC1—WJC4) | 29°12′44″N,116°04′15″E | 半固定沙丘 | 主要植被有木防己、针茅 | |
采样点16(ZXC1—ZXC4) | 29°13′00″N,116°04′15″E | 半固定沙丘 | 主要植被为北京隐子草 | |
采样点17(ZXCⅡ1—ZXCⅡ4) | 29°13′10″N,116°04′19″E | 半固定沙丘 | 主要植被为芨芨草 | |
采样点18(ZXCⅢ1—ZXCⅢ4) | 29°13′21″N,116°04′16″E | 流动沙丘 | 无植被 | |
新建区 | 采样点19(NJ1—NJ2) | 28°58′39″N,116°21′21″E | 河滩 | 旁有狗牙根 |
Table 1 Location of sampling points and vegetation types
采样点 | 序号 | 地理坐标 | 土地类型 | 植被类型 |
---|---|---|---|---|
庐山市 | 采样点1(LH1—LH3) | 29°19′44″N,116°00′21″E | 流动沙丘 | 无植被 |
采样点2(DC5—DC6) | 29°20′52″N,116°01′17″E | 半流动沙丘 | 无植被 | |
采样点3(DC7—DC8) | 29°20′42″N,116°00′41″E | 固定沙丘 | 水保林内湿地松林 | |
采样点4(DC9—DC11) | 29°20′42″N,116°00′41″E | 固定沙丘 | 水保林内湿地松林 | |
采样点5(DC15—DC16) | 29°20′33″N,116°00′34″E | 固定沙丘 | 湿地松林间地 | |
采样点6(DC17—DC18) | 29°20′33″N,116°00′34″E | 固定沙丘 | 遍布湿地松 | |
都昌县 | 采样点7(DC1—DC2) | 29°22′32″N,116°05′37″E | 固定沙丘 | 遍布湿地松 |
采样点8(DC3—DC4) | 29°22′32″N,116°05′37″E | 固定沙丘 | 旁边生有中华胡枝子 | |
采样点9(PYB1—PYB4) | 29°23′48″N,116°04′05″E | 半固定沙丘 | 遍布狗牙根,种有小棵湿地松 | |
采样点10(PYH5—PYH6) | 29°23′43″N,116°04′05″E | 流动沙丘 | 无植被 | |
采样点11(LJC1—LJC4) | 29°23′53″N,116°05′01″E | 半流动沙丘 | 旁有蔓荆 | |
采样点12(LJCⅡ1—LJCⅡ4) | 29°23′52″N,116°04′22″E | 半固定沙丘 | 有狗牙根 | |
永修县 | 采样点13(DGH1—DGH4) | 29°12′33″N,116°04′09″E | 湿地草滩 | 主要植被为画眉草 |
采样点14(DGH5—DGH7) | 29°12′44″N,116°04′10″E | 湿地草滩 | 主要植被为广州蔊菜、九顶草、丛枝蓼 | |
采样点15(WJC1—WJC4) | 29°12′44″N,116°04′15″E | 半固定沙丘 | 主要植被有木防己、针茅 | |
采样点16(ZXC1—ZXC4) | 29°13′00″N,116°04′15″E | 半固定沙丘 | 主要植被为北京隐子草 | |
采样点17(ZXCⅡ1—ZXCⅡ4) | 29°13′10″N,116°04′19″E | 半固定沙丘 | 主要植被为芨芨草 | |
采样点18(ZXCⅢ1—ZXCⅢ4) | 29°13′21″N,116°04′16″E | 流动沙丘 | 无植被 | |
新建区 | 采样点19(NJ1—NJ2) | 28°58′39″N,116°21′21″E | 河滩 | 旁有狗牙根 |
土地类型 | 样品数量 | 指标 | 粒级含量/% | 粒度参数 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
黏土 | 粉沙 | 极细沙 | 细沙 | 中沙 | 粗沙 | 极粗沙 | Mz/Φ | Sd | SK | Kg | |||
固定沙丘 | 13 | 平均值 | 0.68 | 6.22 | 1.78 | 22.37 | 51.87 | 16.22 | 0.86 | 1.69 | 0.95 | 0.26 | 1.68 |
最大值 | 1.14 | 11.69 | 8.04 | 40.61 | 62.32 | 38.76 | 11.14 | 2.24 | 1.39 | 0.48 | 2.47 | ||
最小值 | 0.37 | 2.39 | 0.00 | 6.72 | 38.02 | 2.97 | 0.00 | 1.01 | 0.57 | 0.05 | 0.99 | ||
半固定沙丘 | 26 | 平均值 | 0.70 | 4.85 | 1.76 | 23.94 | 51.89 | 16.76 | 0.09 | 1.72 | 0.92 | 0.21 | 1.48 |
最大值 | 1.53 | 19.39 | 9.04 | 39.60 | 62.26 | 29.08 | 1.88 | 2.55 | 2.06 | 0.62 | 2.69 | ||
最小值 | 0.16 | 0.91 | 0.00 | 15.31 | 40.11 | 3.12 | 0.00 | 1.37 | 0.55 | 0.04 | 0.95 | ||
流动沙丘 | 9 | 平均值 | 0.79 | 3.64 | 0.89 | 23.30 | 58.01 | 13.35 | 0.01 | 1.67 | 0.71 | 0.15 | 1.37 |
最大值 | 1.33 | 5.55 | 5.27 | 35.76 | 67.01 | 19.94 | 0.09 | 1.95 | 1.04 | 0.38 | 3.08 | ||
最小值 | 0.49 | 1.78 | 0.00 | 9.91 | 47.11 | 7.77 | 0.00 | 1.49 | 0.54 | 0.03 | 0.98 | ||
湿地草滩 | 7 | 平均值 | 1.53 | 18.20 | 3.98 | 19.60 | 43.81 | 12.88 | 0.00 | 2.36 | 1.69 | 0.49 | 1.71 |
最大值 | 3.48 | 36.47 | 9.47 | 25.22 | 58.66 | 18.20 | 0.00 | 3.36 | 2.49 | 0.63 | 2.76 | ||
最小值 | 0.62 | 6.20 | 0.10 | 14.18 | 31.58 | 9.53 | 0.00 | 1.56 | 1.14 | 0.38 | 0.83 | ||
河滩 | 2 | 平均值 | 0.78 | 12.09 | 4.60 | 18.14 | 42.73 | 20.98 | 0.69 | 1.93 | 1.51 | 0.47 | 1.87 |
最大值 | 0.97 | 13.38 | 4.94 | 19.89 | 43.07 | 24.22 | 1.38 | 2.11 | 1.60 | 0.52 | 1.87 | ||
最小值 | 0.58 | 10.79 | 4.26 | 16.39 | 42.38 | 17.75 | 0.00 | 1.74 | 1.42 | 0.42 | 1.86 | ||
鄱阳湖沙地 | 57 | 平均值 | 0.82 | 6.86 | 2.00 | 22.75 | 51.54 | 15.77 | 0.26 | 1.79 | 1.01 | 0.26 | 1.55 |
最大值 | 3.48 | 36.47 | 9.47 | 40.61 | 67.01 | 38.76 | 11.14 | 3.36 | 2.49 | 0.63 | 3.08 | ||
最小值 | 0.16 | 0.91 | 0.00 | 6.72 | 33.62 | 2.97 | 0.00 | 1.01 | 0.54 | 0.03 | 0.93 |
Table 2 Grain size distribution and parameters of sediments
土地类型 | 样品数量 | 指标 | 粒级含量/% | 粒度参数 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
黏土 | 粉沙 | 极细沙 | 细沙 | 中沙 | 粗沙 | 极粗沙 | Mz/Φ | Sd | SK | Kg | |||
固定沙丘 | 13 | 平均值 | 0.68 | 6.22 | 1.78 | 22.37 | 51.87 | 16.22 | 0.86 | 1.69 | 0.95 | 0.26 | 1.68 |
最大值 | 1.14 | 11.69 | 8.04 | 40.61 | 62.32 | 38.76 | 11.14 | 2.24 | 1.39 | 0.48 | 2.47 | ||
最小值 | 0.37 | 2.39 | 0.00 | 6.72 | 38.02 | 2.97 | 0.00 | 1.01 | 0.57 | 0.05 | 0.99 | ||
半固定沙丘 | 26 | 平均值 | 0.70 | 4.85 | 1.76 | 23.94 | 51.89 | 16.76 | 0.09 | 1.72 | 0.92 | 0.21 | 1.48 |
最大值 | 1.53 | 19.39 | 9.04 | 39.60 | 62.26 | 29.08 | 1.88 | 2.55 | 2.06 | 0.62 | 2.69 | ||
最小值 | 0.16 | 0.91 | 0.00 | 15.31 | 40.11 | 3.12 | 0.00 | 1.37 | 0.55 | 0.04 | 0.95 | ||
流动沙丘 | 9 | 平均值 | 0.79 | 3.64 | 0.89 | 23.30 | 58.01 | 13.35 | 0.01 | 1.67 | 0.71 | 0.15 | 1.37 |
最大值 | 1.33 | 5.55 | 5.27 | 35.76 | 67.01 | 19.94 | 0.09 | 1.95 | 1.04 | 0.38 | 3.08 | ||
最小值 | 0.49 | 1.78 | 0.00 | 9.91 | 47.11 | 7.77 | 0.00 | 1.49 | 0.54 | 0.03 | 0.98 | ||
湿地草滩 | 7 | 平均值 | 1.53 | 18.20 | 3.98 | 19.60 | 43.81 | 12.88 | 0.00 | 2.36 | 1.69 | 0.49 | 1.71 |
最大值 | 3.48 | 36.47 | 9.47 | 25.22 | 58.66 | 18.20 | 0.00 | 3.36 | 2.49 | 0.63 | 2.76 | ||
最小值 | 0.62 | 6.20 | 0.10 | 14.18 | 31.58 | 9.53 | 0.00 | 1.56 | 1.14 | 0.38 | 0.83 | ||
河滩 | 2 | 平均值 | 0.78 | 12.09 | 4.60 | 18.14 | 42.73 | 20.98 | 0.69 | 1.93 | 1.51 | 0.47 | 1.87 |
最大值 | 0.97 | 13.38 | 4.94 | 19.89 | 43.07 | 24.22 | 1.38 | 2.11 | 1.60 | 0.52 | 1.87 | ||
最小值 | 0.58 | 10.79 | 4.26 | 16.39 | 42.38 | 17.75 | 0.00 | 1.74 | 1.42 | 0.42 | 1.86 | ||
鄱阳湖沙地 | 57 | 平均值 | 0.82 | 6.86 | 2.00 | 22.75 | 51.54 | 15.77 | 0.26 | 1.79 | 1.01 | 0.26 | 1.55 |
最大值 | 3.48 | 36.47 | 9.47 | 40.61 | 67.01 | 38.76 | 11.14 | 3.36 | 2.49 | 0.63 | 3.08 | ||
最小值 | 0.16 | 0.91 | 0.00 | 6.72 | 33.62 | 2.97 | 0.00 | 1.01 | 0.54 | 0.03 | 0.93 |
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