浙江农业学报 ›› 2025, Vol. 37 ›› Issue (11): 2325-2339.DOI: 10.3969/j.issn.1004-1524.20250055
应碧旷1,2(
), 刘宇2, 魏馨2, 李晶2, 王金旺2,*(
)
收稿日期:2025-01-17
出版日期:2025-11-25
发布日期:2025-12-08
作者简介:应碧旷(1998—),男,浙江台州人,硕士研究生,主要从事林业生态研究。E-mail:18857615869@163.com
通讯作者:
*王金旺,E-mail: kingwwang@163.com
基金资助:
YING Bikuang1,2(
), LIU Yu2, WEI Xin2, LI Jing2, WANG Jinwang2,*(
)
Received:2025-01-17
Online:2025-11-25
Published:2025-12-08
摘要: 加拿大一枝黄花(Solidago canadensis)是被列入《中国第二批外来入侵物种名单》的植物,于2003年在温州发现有分布。选择沿海典型生境,基于温州市40个样方调查数据,开展加拿大一枝黄花在不同入侵程度与不同生境中对群落结构、物种多样性的影响研究,探讨其入侵特征与机制。结果表明:温州市沿海典型生境中,加拿大一枝黄花入侵的群落包含维管植物13科28属34种,其中,外来入侵植物的物种数占26.5%。随着加拿大一枝黄花入侵程度的增强,群落内的物种数逐渐降低,外来入侵植物的种类占比逐渐增加,且外来入侵植物的重要值之和逐渐增加。在供试样方中,加拿大一枝黄花的重要值与生态位宽度在各类入侵群落中均最高,且其他外来入侵植物的重要值与生态位宽度也多位于各样方前列。加拿大一枝黄花重度入侵群落的多样性指数显著(p<0.05)低于轻、中度入侵群落。加拿大一枝黄花的相对多度与其他外来入侵植物、本土植物呈负相关关系,且其相关性随入侵程度的增强而增强。生态位重叠指数分析进一步明确,在中、重度入侵群落中,加拿大一枝黄花与其他外来入侵植物、本土植物之间逐渐增强的竞争关系是导致以上结果的重要原因。在各地类中,园地与交通用地有利于外来入侵植物扩散,而耕地有利于防止外来植物入侵。
中图分类号:
应碧旷, 刘宇, 魏馨, 李晶, 王金旺. 加拿大一枝黄花入侵对温州沿海区域植物群落结构的影响[J]. 浙江农业学报, 2025, 37(11): 2325-2339.
YING Bikuang, LIU Yu, WEI Xin, LI Jing, WANG Jinwang. Impacts of Solidago canadensis invasion on plant community structure in coastal region of Wenzhou, China[J]. Acta Agriculturae Zhejiangensis, 2025, 37(11): 2325-2339.
| 科名 Family | 种名 Species | 科名 Family | 种名 Species |
|---|---|---|---|
| 桑科Moraceae | 葎草Humulus scandens | 大戟科Euphorbiaceae | 铁苋菜Acalypha australis |
| 蓼科Polygonaceae | 长鬃蓼Polygonum longisetum | 叶下珠Phyllanthus urinaria | |
| 苋科Amaranthaceae | 喜旱莲子草Alternanthera philoxeroides◆ | 葡萄科Vitaceae | 乌蔹莓Causonis japonica |
| 莲子草Alternanthera sessilis | 禾本科Poaceae | 荩草Arthraxon hispidus | |
| 蔷薇科Rosaceae | 硕苞蔷薇Rosa bracteata | 升马唐Digitaria ciliaris | |
| 豆科Fabaceae | 鸡眼草Kummerowia striata | 红尾翎Digitaria radicosa | |
| 酢浆草科Oxalidaceae | 红花酢浆草Oxalis corniculata◆ | 光头稗Echinochloa colonum | |
| 菊科Asteraceae | 加拿大一枝黄花Solidago canadensis◆ | 大白茅Imperata cylindrica var. major | |
| 钻叶紫菀Symphyotrichum subulatum◆ | 假稻Leersia japonica | ||
| 鳢肠Eclipta prostrata | 糠稷Panicum bisulcatum | ||
| 野艾蒿Artemisia lavandulaefolia | 铺地黍Panicum repens◆ | ||
| 矮蒿Artemisia lancea | 大狗尾草Setaria faberi | ||
| 白花鬼针草Bidens alba◆ | 金色狗尾草Setaria pumlia | ||
| 鬼针草Bidens pilosa◆ | 结缕草Zoysia japonica | ||
| 小蓬草Erigeron canadensis◆ | 莎草科Cyperaceae | 水蜈蚣Kyllinga brevifolia | |
| 香丝草Erigeron bonariensis◆ | 爵床科Acanthaceae | 爵床Justicia procumbens | |
| 翅果菊Lactuca indica | 茜草科Rubiaceae | 鸡矢藤Paederia scandens |
表1 调查地植物名录
Table 1 List of plants in survey site
| 科名 Family | 种名 Species | 科名 Family | 种名 Species |
|---|---|---|---|
| 桑科Moraceae | 葎草Humulus scandens | 大戟科Euphorbiaceae | 铁苋菜Acalypha australis |
| 蓼科Polygonaceae | 长鬃蓼Polygonum longisetum | 叶下珠Phyllanthus urinaria | |
| 苋科Amaranthaceae | 喜旱莲子草Alternanthera philoxeroides◆ | 葡萄科Vitaceae | 乌蔹莓Causonis japonica |
| 莲子草Alternanthera sessilis | 禾本科Poaceae | 荩草Arthraxon hispidus | |
| 蔷薇科Rosaceae | 硕苞蔷薇Rosa bracteata | 升马唐Digitaria ciliaris | |
| 豆科Fabaceae | 鸡眼草Kummerowia striata | 红尾翎Digitaria radicosa | |
| 酢浆草科Oxalidaceae | 红花酢浆草Oxalis corniculata◆ | 光头稗Echinochloa colonum | |
| 菊科Asteraceae | 加拿大一枝黄花Solidago canadensis◆ | 大白茅Imperata cylindrica var. major | |
| 钻叶紫菀Symphyotrichum subulatum◆ | 假稻Leersia japonica | ||
| 鳢肠Eclipta prostrata | 糠稷Panicum bisulcatum | ||
| 野艾蒿Artemisia lavandulaefolia | 铺地黍Panicum repens◆ | ||
| 矮蒿Artemisia lancea | 大狗尾草Setaria faberi | ||
| 白花鬼针草Bidens alba◆ | 金色狗尾草Setaria pumlia | ||
| 鬼针草Bidens pilosa◆ | 结缕草Zoysia japonica | ||
| 小蓬草Erigeron canadensis◆ | 莎草科Cyperaceae | 水蜈蚣Kyllinga brevifolia | |
| 香丝草Erigeron bonariensis◆ | 爵床科Acanthaceae | 爵床Justicia procumbens | |
| 翅果菊Lactuca indica | 茜草科Rubiaceae | 鸡矢藤Paederia scandens |
| 生境类型 Habitat type | 入侵强度 Invasion intensity | 样方数量 Number of quadrats | 科数量 Number of family | 属数量 Number of genus | 植物物种数 Number of plant species | 入侵植物种数 Number of invasive plant species |
|---|---|---|---|---|---|---|
| 城镇用地 | 轻度入侵Slight invasion | 2 | 6 | 9 | 10 | 3 |
| Urban land | 中度入侵Moderate invasion | 5 | 3 | 13 | 13 | 5 |
| 重度入侵Severe invasion | 3 | 3 | 5 | 5 | 4 | |
| 交通用地 | 轻度入侵Slight invasion | 1 | 3 | 4 | 4 | 2 |
| Transportation land | 中度入侵Moderate invasion | 3 | 4 | 6 | 6 | 2 |
| 重度入侵Severe invasion | 6 | 3 | 3 | 3 | 2 | |
| 耕地 | 轻度入侵Slight invasion | 3 | 6 | 13 | 14 | 6 |
| Cultivated land | 中度入侵Moderate invasion | 2 | 5 | 12 | 12 | 5 |
| 重度入侵Severe invasion | 5 | 3 | 10 | 10 | 5 | |
| 园地 | 轻度入侵Slight invasion | 1 | 3 | 5 | 5 | 5 |
| Garden land | 中度入侵Moderate invasion | 2 | 5 | 8 | 8 | 4 |
| 重度入侵Severe invasion | 7 | 3 | 5 | 5 | 5 |
表2 不同生境加拿大一枝黄花入侵群落的物种组成
Table 2 Species composition of invaded communities by Solidago canadensis in different habitats
| 生境类型 Habitat type | 入侵强度 Invasion intensity | 样方数量 Number of quadrats | 科数量 Number of family | 属数量 Number of genus | 植物物种数 Number of plant species | 入侵植物种数 Number of invasive plant species |
|---|---|---|---|---|---|---|
| 城镇用地 | 轻度入侵Slight invasion | 2 | 6 | 9 | 10 | 3 |
| Urban land | 中度入侵Moderate invasion | 5 | 3 | 13 | 13 | 5 |
| 重度入侵Severe invasion | 3 | 3 | 5 | 5 | 4 | |
| 交通用地 | 轻度入侵Slight invasion | 1 | 3 | 4 | 4 | 2 |
| Transportation land | 中度入侵Moderate invasion | 3 | 4 | 6 | 6 | 2 |
| 重度入侵Severe invasion | 6 | 3 | 3 | 3 | 2 | |
| 耕地 | 轻度入侵Slight invasion | 3 | 6 | 13 | 14 | 6 |
| Cultivated land | 中度入侵Moderate invasion | 2 | 5 | 12 | 12 | 5 |
| 重度入侵Severe invasion | 5 | 3 | 10 | 10 | 5 | |
| 园地 | 轻度入侵Slight invasion | 1 | 3 | 5 | 5 | 5 |
| Garden land | 中度入侵Moderate invasion | 2 | 5 | 8 | 8 | 4 |
| 重度入侵Severe invasion | 7 | 3 | 5 | 5 | 5 |
| 物种 Species | 不同入侵强度下物种的重要值Importance values of species under invasion intensities | ||
|---|---|---|---|
| 轻度入侵Slight invasion | 中度入侵Moderate invasion | 重度入侵Severe invasion | |
| 加拿大一枝黄花Solidago canadensis | 15.09 | 22.87 | 50.52 |
| 小蓬草Erigeron canadensis | 11.31 | 6.87 | 3.32 |
| 铺地黍Panicum repens | 5.31 | — | — |
| 白花鬼针草Bidens alba | 4.90 | 3.32 | 9.15 |
| 红花酢浆草Oxalis corniculata | 3.28 | — | — |
| 喜旱莲子草Alternanthera philoxeroides | 2.31 | 20.51 | 4.15 |
| 鬼针草Bidens pilosa | 1.69 | 1.20 | — |
| 香丝草Erigeron bonariensis | 1.39 | 1.65 | 2.91 |
| 钻叶紫菀Symphyotrichum subulatum | 0.70 | 7.42 | 2.03 |
| 入侵植物总和Sum of invasive plants | 45.98 | 63.84 | 72.08 |
| 野艾蒿Artemisia lavandulaefolia | 12.98 | 2.03 | — |
| 翅果菊Lactuca indica | 12.10 | 4.70 | 7.89 |
| 光头稗Echinochloa colonum | 8.39 | 1.36 | — |
| 荩草Arthraxon hispidus | 3.19 | 2.18 | — |
| 矮蒿Artemisia lancea | 2.12 | — | 2.29 |
| 乌蔹莓Causonis japonica | 1.54 | — | — |
| 糠稷Panicum bisulcatum | 1.51 | 3.00 | 3.96 |
| 大白茅Imperata cylindrica var. major | 1.37 | — | — |
| 大狗尾草Setaria faberi | 1.26 | 1.62 | — |
| 假稻Leersia japonica | 1.24 | 4.32 | — |
| 铁苋菜Acalypha australis | 1.18 | — | 2.50 |
| 金色狗尾草Setaria pumlia | 1.15 | — | 3.68 |
| 升马唐Digitaria ciliaris | 0.82 | 6.46 | 4.30 |
| 鸡眼草Kummerowia striata | 0.79 | 2.76 | — |
| 鳢肠Eclipta prostrata | 0.79 | 1.31 | 1.58 |
| 叶下珠Phyllanthus urinaria | 0.67 | — | — |
| 水蜈蚣Kyllinga brevifolia | 0.60 | — | — |
| 莲子草Alternanthera sessilis | 0.60 | — | — |
| 葎草Humulus scandens | 0.53 | — | — |
| 长鬃蓼Polygonum longisetum | 0.60 | — | — |
| 鸡矢藤Paederia scandens | 0.57 | — | — |
| 结缕草Zoysia japonica | — | 3.19 | — |
| 爵床Justicia procumbens | — | 1.93 | — |
| 硕包蔷薇Rosa bracteata | — | — | 1.73 |
| 红尾翎Digitaria radicosa | — | 1.26 | — |
| 本土植物总和Sum of native plants | 54.00 | 36.12 | 27.93 |
表3 不同入侵程度下植物群落的物种重要值(Ⅳ)
Table 3 Importance values (Ⅳ) of species in plant communities under different invasion intensities
| 物种 Species | 不同入侵强度下物种的重要值Importance values of species under invasion intensities | ||
|---|---|---|---|
| 轻度入侵Slight invasion | 中度入侵Moderate invasion | 重度入侵Severe invasion | |
| 加拿大一枝黄花Solidago canadensis | 15.09 | 22.87 | 50.52 |
| 小蓬草Erigeron canadensis | 11.31 | 6.87 | 3.32 |
| 铺地黍Panicum repens | 5.31 | — | — |
| 白花鬼针草Bidens alba | 4.90 | 3.32 | 9.15 |
| 红花酢浆草Oxalis corniculata | 3.28 | — | — |
| 喜旱莲子草Alternanthera philoxeroides | 2.31 | 20.51 | 4.15 |
| 鬼针草Bidens pilosa | 1.69 | 1.20 | — |
| 香丝草Erigeron bonariensis | 1.39 | 1.65 | 2.91 |
| 钻叶紫菀Symphyotrichum subulatum | 0.70 | 7.42 | 2.03 |
| 入侵植物总和Sum of invasive plants | 45.98 | 63.84 | 72.08 |
| 野艾蒿Artemisia lavandulaefolia | 12.98 | 2.03 | — |
| 翅果菊Lactuca indica | 12.10 | 4.70 | 7.89 |
| 光头稗Echinochloa colonum | 8.39 | 1.36 | — |
| 荩草Arthraxon hispidus | 3.19 | 2.18 | — |
| 矮蒿Artemisia lancea | 2.12 | — | 2.29 |
| 乌蔹莓Causonis japonica | 1.54 | — | — |
| 糠稷Panicum bisulcatum | 1.51 | 3.00 | 3.96 |
| 大白茅Imperata cylindrica var. major | 1.37 | — | — |
| 大狗尾草Setaria faberi | 1.26 | 1.62 | — |
| 假稻Leersia japonica | 1.24 | 4.32 | — |
| 铁苋菜Acalypha australis | 1.18 | — | 2.50 |
| 金色狗尾草Setaria pumlia | 1.15 | — | 3.68 |
| 升马唐Digitaria ciliaris | 0.82 | 6.46 | 4.30 |
| 鸡眼草Kummerowia striata | 0.79 | 2.76 | — |
| 鳢肠Eclipta prostrata | 0.79 | 1.31 | 1.58 |
| 叶下珠Phyllanthus urinaria | 0.67 | — | — |
| 水蜈蚣Kyllinga brevifolia | 0.60 | — | — |
| 莲子草Alternanthera sessilis | 0.60 | — | — |
| 葎草Humulus scandens | 0.53 | — | — |
| 长鬃蓼Polygonum longisetum | 0.60 | — | — |
| 鸡矢藤Paederia scandens | 0.57 | — | — |
| 结缕草Zoysia japonica | — | 3.19 | — |
| 爵床Justicia procumbens | — | 1.93 | — |
| 硕包蔷薇Rosa bracteata | — | — | 1.73 |
| 红尾翎Digitaria radicosa | — | 1.26 | — |
| 本土植物总和Sum of native plants | 54.00 | 36.12 | 27.93 |
| 物种 Species | 不同生境下物种的重要值Importance values of species under habitat types | |||
|---|---|---|---|---|
| 耕地 Cultivated land | 城镇用地 Urban land | 交通用地 Transportation land | 园地 Garden land | |
| 加拿大一枝黄花Solidago canadensis | 20.44 | 27.79 | 43.20 | 54.83 |
| 小蓬草Erigeron canadensis | 3.38 | 24.20 | — | — |
| 铺地黍Panicum repens | — | — | — | 4.60 |
| 白花鬼针草Bidens alba | 2.57 | — | — | 6.57 |
| 红花酢浆草Oxalis corniculata | — | — | 2.10 | — |
| 喜旱莲子草Alternanthera philoxeroides | 8.38 | 1.03 | 22.64 | 6.68 |
| 鬼针草Bidens pilosa | 0.95 | — | — | — |
| 香丝草Erigeron bonariensis | — | 0.86 | — | 5.84 |
| 钻叶紫菀Symphyotrichum subulatum | 1.19 | 5.13 | — | — |
| 入侵植物总和Sum of invasive plants | 36.91 | 59.01 | 67.94 | 78.52 |
| 野艾蒿Artemisia lavandulaefolia | — | 2.95 | 18.22 | — |
| 翅果菊Lactuca indica | 5.45 | 5.92 | — | 18.82 |
| 光头稗Echinochloa colonum | 12.44 | — | — | — |
| 荩草Arthraxon hispidus | 2.52 | — | — | — |
| 矮蒿Artemisia lancea | — | 2.63 | — | — |
| 乌蔹莓Causonis japonica | — | 3.54 | 9.27 | — |
| 糠稷Panicum bisulcatum | 7.74 | 2.70 | — | — |
| 大白茅Imperata cylindrica var. major | — | 3.46 | — | — |
| 大狗尾草Setaria faberi | — | 3.24 | — | — |
| 假稻Leersia japonica | 13.06 | — | — | — |
| 铁苋菜Acalypha australis | 5.24 | — | — | 2.66 |
| 金色狗尾草Setaria pumlia | 3.57 | — | — | — |
| 升马唐Digitaria ciliaris | 3.56 | — | — | — |
| 鸡眼草Kummerowia striata | — | 4.44 | — | — |
| 鳢肠Eclipta prostrata | 2.59 | — | — | — |
| 叶下珠Phyllanthus urinaria | — | 5.55 | — | — |
| 水蜈蚣Kyllinga brevifolia | 0.69 | — | — | — |
| 莲子草Alternanthera sessilis | 3.41 | — | — | — |
| 葎草Humulus scandens | — | — | 1.94 | — |
| 长鬃蓼Polygonum longisetum | 0.61 | — | — | — |
| 鸡矢藤Paederia scandens | 0.92 | — | — | — |
| 结缕草Zoysia japonica | — | 4.38 | — | — |
| 爵床Justicia procumbens | 1.26 | — | — | — |
| 硕包蔷薇Rosa bracteata | — | — | 2.64 | — |
| 红尾翎Digitaria radicosa | — | 2.16 | — | — |
| 本土植物总和Sum of native plants | 63.06 | 40.97 | 32.07 | 21.48 |
表4 不同生境下植物群落物种的重要值
Table 4 Importance values of species in plant communities under different habitats
| 物种 Species | 不同生境下物种的重要值Importance values of species under habitat types | |||
|---|---|---|---|---|
| 耕地 Cultivated land | 城镇用地 Urban land | 交通用地 Transportation land | 园地 Garden land | |
| 加拿大一枝黄花Solidago canadensis | 20.44 | 27.79 | 43.20 | 54.83 |
| 小蓬草Erigeron canadensis | 3.38 | 24.20 | — | — |
| 铺地黍Panicum repens | — | — | — | 4.60 |
| 白花鬼针草Bidens alba | 2.57 | — | — | 6.57 |
| 红花酢浆草Oxalis corniculata | — | — | 2.10 | — |
| 喜旱莲子草Alternanthera philoxeroides | 8.38 | 1.03 | 22.64 | 6.68 |
| 鬼针草Bidens pilosa | 0.95 | — | — | — |
| 香丝草Erigeron bonariensis | — | 0.86 | — | 5.84 |
| 钻叶紫菀Symphyotrichum subulatum | 1.19 | 5.13 | — | — |
| 入侵植物总和Sum of invasive plants | 36.91 | 59.01 | 67.94 | 78.52 |
| 野艾蒿Artemisia lavandulaefolia | — | 2.95 | 18.22 | — |
| 翅果菊Lactuca indica | 5.45 | 5.92 | — | 18.82 |
| 光头稗Echinochloa colonum | 12.44 | — | — | — |
| 荩草Arthraxon hispidus | 2.52 | — | — | — |
| 矮蒿Artemisia lancea | — | 2.63 | — | — |
| 乌蔹莓Causonis japonica | — | 3.54 | 9.27 | — |
| 糠稷Panicum bisulcatum | 7.74 | 2.70 | — | — |
| 大白茅Imperata cylindrica var. major | — | 3.46 | — | — |
| 大狗尾草Setaria faberi | — | 3.24 | — | — |
| 假稻Leersia japonica | 13.06 | — | — | — |
| 铁苋菜Acalypha australis | 5.24 | — | — | 2.66 |
| 金色狗尾草Setaria pumlia | 3.57 | — | — | — |
| 升马唐Digitaria ciliaris | 3.56 | — | — | — |
| 鸡眼草Kummerowia striata | — | 4.44 | — | — |
| 鳢肠Eclipta prostrata | 2.59 | — | — | — |
| 叶下珠Phyllanthus urinaria | — | 5.55 | — | — |
| 水蜈蚣Kyllinga brevifolia | 0.69 | — | — | — |
| 莲子草Alternanthera sessilis | 3.41 | — | — | — |
| 葎草Humulus scandens | — | — | 1.94 | — |
| 长鬃蓼Polygonum longisetum | 0.61 | — | — | — |
| 鸡矢藤Paederia scandens | 0.92 | — | — | — |
| 结缕草Zoysia japonica | — | 4.38 | — | — |
| 爵床Justicia procumbens | 1.26 | — | — | — |
| 硕包蔷薇Rosa bracteata | — | — | 2.64 | — |
| 红尾翎Digitaria radicosa | — | 2.16 | — | — |
| 本土植物总和Sum of native plants | 63.06 | 40.97 | 32.07 | 21.48 |
图1 加拿大一枝黄花群落的多样性指数 柱上无相同字母的表示差异显著(p<0.05)。
Fig.1 Diversity index of Solidago canadensis communities Bars marked without the same letters indicate significant difference at p<0.05.
图2 不同入侵程度下加拿大一枝黄花与其他入侵植物(上行)、本土植物(下行)相对多度的相关性 Aph,喜旱莲子草;Ase,莲子草;Rbr硕苞蔷薇;Kst鸡眼草;Oco,红花酢浆草;Sca,加拿大一枝黄花;Ssu,钻叶紫菀;Epr,鳢肠;Ala,野艾蒿;Bal,白花鬼针草;Bpi,鬼针草;Eca,小蓬草;Ebo,香丝草;Lin,翅果菊;Aau,铁苋菜;Pur,叶下珠;Cja,乌蔹莓;Ahi,荩草;Dci,升马唐;Dra,红尾翎;Eco,光头稗;Lja,假稻;Pbi,糠稷;Pre,铺地黍;Spu,金色狗尾草;Zja,结缕草;Kbr,水蜈蚣;Jpr,爵床;Psc,鸡矢藤。标“*”和“**”的分别表示显著(p<0.05)和极显著(p<0.05)相关。下同。
Fig.2 Correlation of relative abundance of Solidago canadensis with other invasive (upper row) and native species (lower row) under different invasion intensities Aph, Alternanthera philoxeroides; Ase, Alternanthera sessilis; Rbr, Rosa bracteata; Kst, Kummerowia striata; Oco, Oxalis corniculata; Sca, Solidago canadensis; Ssu, Symphyotrichum subulatum; Epr, Eclipta prostrata; Ala, Artemisia lavandulaefolia; Bal, Bidens alba; Bpi, Bidens pilosa; Eca, Erigeron canadensis; Ebo, Erigeron bonariensis; Lin, Lactuca indica; Aau, Acalypha australis; Pur, Phyllanthus urinaria; Cja, Causonis japonica; Ahi, Arthraxon hispidus; Dci, Digitaria ciliaris; Dra, Digitaria radicosa; Eco, Echinochloa colonum; Lja, Leersia japonica; Pbi, Panicum bisulcatum; Pre, Panicum repens; Spu, Setaria pumila; Zja, Zoysia japonica; Kbr, Kyllinga brevifolia; Jpr, Justicia procumbens; Psc, Paederia scandens. “*” and “**” indicate significant correlation at p<0.05 and p<0.01 level, respectively.The same as below.
图3 不同生境加拿大一枝黄花与其他外来入侵植物(上行)、乡土植物(下行)相对多度的相关性 Hsc,葎草;Sfa,大狗尾草。
Fig.3 Correlation of relative abundance of Solidago canadensis with other invasive (upper row) and native species (lower row) under different habitat types Hsc, Humulus scandens; Sfa, Setaria faberi.
| 物种 species | 不同入侵强度下的生态位重叠指数 Niche overlap index under invasion intensities | ||
|---|---|---|---|
| 轻度入侵 Slight invasion | 中度入侵 Moderate invasion | 重度入侵 Severe invasion | |
| Eca | 0.45 | 0.68 | — |
| Lin | 0.61 | — | 0.81 |
| Eco | 0.53 | — | — |
| Ala | 0.55 | — | — |
| Aph | — | 0.63 | — |
| Dci | — | 0.41 | — |
| Ssu | — | 0.36 | — |
| Bal | — | — | 0.83 |
表5 不同入侵强度下加拿大一枝黄花与其他植物的生态位重叠指数
Table 5 Niche overlap index between Solidago canadensis and other plants under different invasion intensities
| 物种 species | 不同入侵强度下的生态位重叠指数 Niche overlap index under invasion intensities | ||
|---|---|---|---|
| 轻度入侵 Slight invasion | 中度入侵 Moderate invasion | 重度入侵 Severe invasion | |
| Eca | 0.45 | 0.68 | — |
| Lin | 0.61 | — | 0.81 |
| Eco | 0.53 | — | — |
| Ala | 0.55 | — | — |
| Aph | — | 0.63 | — |
| Dci | — | 0.41 | — |
| Ssu | — | 0.36 | — |
| Bal | — | — | 0.83 |
| 物种 Species | 不同生境的生态位重叠指数Niche overlap index under different habitat types | |||
|---|---|---|---|---|
| 耕地 Cultivated land | 交通用地 Transportation land | 园地 Garden land | 城镇用地 Urban land | |
| Pbi | 0.22 | — | — | — |
| Eca | 0.36 | — | — | 0.27 |
| Aph | 0.35 | 0.85 | 0.84 | — |
| Lin | 0.47 | — | 0.87 | 0.54 |
| Lja | 0.37 | — | — | — |
| Aau | 0.22 | 0.66 | — | — |
| Ebo | — | — | 0.91 | — |
| Bal | — | — | 0.58 | — |
| Pur | — | — | — | 0.61 |
| Ssu | — | — | — | 0.38 |
| Cja | — | 0.77 | — | — |
表6 不同生境加拿大一枝黄花与其他植物的生态位重叠指数
Table 6 Niche overlap index between Solidago canadensis and other plants under different habitats
| 物种 Species | 不同生境的生态位重叠指数Niche overlap index under different habitat types | |||
|---|---|---|---|---|
| 耕地 Cultivated land | 交通用地 Transportation land | 园地 Garden land | 城镇用地 Urban land | |
| Pbi | 0.22 | — | — | — |
| Eca | 0.36 | — | — | 0.27 |
| Aph | 0.35 | 0.85 | 0.84 | — |
| Lin | 0.47 | — | 0.87 | 0.54 |
| Lja | 0.37 | — | — | — |
| Aau | 0.22 | 0.66 | — | — |
| Ebo | — | — | 0.91 | — |
| Bal | — | — | 0.58 | — |
| Pur | — | — | — | 0.61 |
| Ssu | — | — | — | 0.38 |
| Cja | — | 0.77 | — | — |
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