[1]WEI Zheng,WANG Xiao,SONG Weifeng,et al.Impact of Different Terrain Conditions on Population Structure and Pattern of Caragana Mirophylla in Otindag Sandland[J].Research of Soil and Water Conservation,2016,23(06):102-107,115.
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Impact of Different Terrain Conditions on Population Structure and Pattern of Caragana Mirophylla in Otindag Sandland
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 06
Page number:
102-107,115
Column:
Public date:
2016-12-28
- Title:
- Impact of Different Terrain Conditions on Population Structure and Pattern of Caragana Mirophylla in Otindag Sandland
- Keywords:
- spatial pattern; slope position; Caragana mirophylla; Otindag Sandland
- CLC:
- Q14,Q948
- DOI:
- -
- Abstract:
- Slope position has different effects on the ecohydrological processes, such as seed dispersal, reproduction, soil water dynamics, heat transfer and nutrient redistribution, etc. In appropriate slope position will unbalance the ecological function, such as soil and water loss and decreased biodiversity, researches about the effect of slope position on the spatial pattern of plant population will contribute to understand the potential ecological processes and biological characteristics of plant populations and their relationships with environmental factors, and be helpful to the rational planning of vegetation types of different slope positions in desertification-prone area. Based on the method of spatial pattern we studied the impact of different slope positions on the structure and pattern of Caragana mirophylla in Otindag Sandland. The results showed that:(1) the population of Caragana mirophylla in the upper part of the slope or on the flat part showed high aggregation within the small scale, as the scale increased, the aggregation intensity gradually decreased and finally became random distribution, while in the middle and lower parts of the slope, the population presented uniform or random distribution within the small scale; (2) according to the crown and height, Caragana mirophylla was divided into the adult and the youth, from the upper, the middle and the lower slope parts down to the flat part, the negative correlation between the adult and the youth existed, with the increase of the scale, the relationship between them gradually weakened and finally showed no association.
- References:
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