Landscape ecological evaluation on the artificial forest of Leucaena leucocephala

Abstract

Based on the theory of ecology, this article conducted a landscape ecological evaluation on Leucaena leucocephala artificial forest in the arid-hot valley, Yuanmou Xiaokua hill, using a combination method of qualitative analysis and landscape comprehensive evaluation. The comprehensive evaluation indexes of landscape include forest coverage, biodiversity, stability, soil erosion, environmental quality, availability, scientific research characteristic, economic benefits. Using AHP (analytical hierarchy process), determine the grade of ecological evaluation factors and the weight of evaluation index and calculate the CEI (comprehensive evaluation index) on ecological evaluation. Evaluation results showed that the area CEI was 0.714 225, a better quality of the ecological level, but biodiversity indicators was the lowest. To sum up, it was difficult to maintain ecological restoration effectiveness and process but also guarantee a good biodiversity in the arid-hot valleys. We must reasonably arrange the alien species and the native species, in order to obtain a stable and sustainable eco-system.

Multiple Analysis of the Relationship between the Characteristics of Plant Landscape and the Spatiotemporal Aggregation of the Population

“…The campus occupies an area of about 80 hm 2 and has 67 plant families, 128 genera, and 193 species with a greening rate of 49.02% [35,36]. After conducting a comprehensive survey on the characteristics of campus plant landscape and types of vegetation structure, we selected 52 typical plant landscape units of 20 m × 20 m under eight classes which were evenly distributed across the campus [37] (Table 1 and Figure 2). The plant landscape unit here refers to the area that mainly represents the plant landscape and can be used for vegetation investigation and sampling to limit the range.…”

Research on Evaluation of the Landscape and its Functions in Houtan Park of the World Exposition 2010 Shanghai, China

“…By the 1990s, evaluation methods had changed drastically, with researchers mainly using computers to build models for landscape evaluation. In the 21st century, many scholars have evaluated the vegetational landscapes of roads, forests and natural coastal tourism resources [3][4][5][6][7][8], and evaluations that comprehensively include functional factors, such as landscape, ecological, social and economic functions, are usually employed in regional land development [9]. With the acceleration of global urbanization, sustainable design concepts have gradually been applied in urban parks, producing urban ecological waterscape parks.…”