Acta Prataculturae Sinica ›› 2025, Vol. 34 ›› Issue (9): 1-11.DOI: 10.11686/cyxb2024428
Fan-xi KONG(
), Bang-jie TANG, A-li-mi-ri ALIMUJIANG, Ge-ge ADE, Mao-guo YUAN, Jun CHEN(
)
Received:2024-10-29
Revised:2024-12-13
Online:2025-09-20
Published:2025-07-02
Contact:
Jun CHEN
Fan-xi KONG, Bang-jie TANG, A-li-mi-ri ALIMUJIANG, Ge-ge ADE, Mao-guo YUAN, Jun CHEN. Species spatial distribution patterns in grassland under restoration in ‘hill and gully’ regions of the Loess Plateau[J]. Acta Prataculturae Sinica, 2025, 34(9): 1-11.
样地 Site | 退耕年限 Years of fallow land | 地点 Position | 地形 Landform | 气候类型 Climate types | 经纬度 Longitude and latitude | 海拔 Altitude (m) | 调查时间Investigation time (年-月-日year-month-day) |
|---|---|---|---|---|---|---|---|
| 1 | 退耕5 a Restoration years of 5 (2019) | 吴起县中台村老虎沟Wuqi County, Zhongtai Village, Tiger Ditch | 坡地 Slope | 半干旱温带大陆性季风气候Semi-arid temperate continental monsoon climate | 36°54′28″ N, 108°04′05″ E | 1417.3 | 2023-07-17-2023-07-18 |
| 2 | 退耕10 a Restoration years of 10 (2014) | 吴起县中台村老虎沟Wuqi County, Zhongtai Village, Tiger Ditch | 坡地 Slope | 半干旱温带大陆性季风气候Semi-arid temperate continental monsoon climate | 36°54′34″ N, 108°04′09″ E | 1364.1 | 2023-07-13-2023-07-14 |
| 3 | 退耕25 a Restoration years of 25 (1999) | 吴起县中台村老虎沟Wuqi County, Zhongtai Village, Tiger Ditch | 坡地 Slope | 半干旱温带大陆性季风气候Semi-arid temperate continental monsoon climate | 36°54′39″ N, 108°04′11″ E | 1357.2 | 2023-07-15-2023-07-16 |
Table 1 Basic condition of the investigating sites
样地 Site | 退耕年限 Years of fallow land | 地点 Position | 地形 Landform | 气候类型 Climate types | 经纬度 Longitude and latitude | 海拔 Altitude (m) | 调查时间Investigation time (年-月-日year-month-day) |
|---|---|---|---|---|---|---|---|
| 1 | 退耕5 a Restoration years of 5 (2019) | 吴起县中台村老虎沟Wuqi County, Zhongtai Village, Tiger Ditch | 坡地 Slope | 半干旱温带大陆性季风气候Semi-arid temperate continental monsoon climate | 36°54′28″ N, 108°04′05″ E | 1417.3 | 2023-07-17-2023-07-18 |
| 2 | 退耕10 a Restoration years of 10 (2014) | 吴起县中台村老虎沟Wuqi County, Zhongtai Village, Tiger Ditch | 坡地 Slope | 半干旱温带大陆性季风气候Semi-arid temperate continental monsoon climate | 36°54′34″ N, 108°04′09″ E | 1364.1 | 2023-07-13-2023-07-14 |
| 3 | 退耕25 a Restoration years of 25 (1999) | 吴起县中台村老虎沟Wuqi County, Zhongtai Village, Tiger Ditch | 坡地 Slope | 半干旱温带大陆性季风气候Semi-arid temperate continental monsoon climate | 36°54′39″ N, 108°04′11″ E | 1357.2 | 2023-07-15-2023-07-16 |
项目 Item | 年限Year (a) | ||
|---|---|---|---|
| 5 | 10 | 25 | |
| 平均地上生物量Average aboveground biomass (g·0.25 m-2) | 14.87±5.46b | 14.45±3.76b | 19.44±4.64a |
| 平均盖度Average coverage (%) | 44.28±18.40c | 55.96±24.52b | 76.70±16.58a |
| 地上生物量的空间异质性指数Spatial heterogeneity index of aboveground biomass | 2.25 | 3.08 | 1.16 |
| 盖度的空间异质性指数Spatial heterogeneity index of coverage | 2.85 | 2.66 | 0.85 |
Table 2 General characteristics of plant community
项目 Item | 年限Year (a) | ||
|---|---|---|---|
| 5 | 10 | 25 | |
| 平均地上生物量Average aboveground biomass (g·0.25 m-2) | 14.87±5.46b | 14.45±3.76b | 19.44±4.64a |
| 平均盖度Average coverage (%) | 44.28±18.40c | 55.96±24.52b | 76.70±16.58a |
| 地上生物量的空间异质性指数Spatial heterogeneity index of aboveground biomass | 2.25 | 3.08 | 1.16 |
| 盖度的空间异质性指数Spatial heterogeneity index of coverage | 2.85 | 2.66 | 0.85 |
Fig.2 Relationship between aboveground biomass of each plant and its spatial heterogeneity index (Ii ) in grassland communities with different years of restoration
Fig.4 Relationship between the coverage of each plant and its spatial heterogeneity index (Ii ) in grassland communities with different years of restoration
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