landscape ecosystem
2.From the remote sensing information of Huhhot,landscape and ecosystems damaged are very serious.It is showed that farmland,grassland,wetland and urban landscape and ecosystem are damaged by desterification,soiland water loss,salinization pollution and species reduction.So recovery and re-building of landscape ecosystems are fundamental ways to thorough improve ecological environment in Huhhot.
4.It is a unique wetland ecosystem with good wetland vegetation in Tianjin area,with the characteristics of typicalness and frangibility for ecosystem,uniqueness for natural landscape,complexity for habitats,naturalness for ecosystem succession,and particularity for ecological status. The wetland is also an important site for migratory birds in the East Asia-Australasia Flyway.
5.Indexes of landscape pattern and serve function value of ecosystem, and extracting the data by ArcView from the digital land cover mapping which scale is 1∶100 000 are used in the assessment. The types of ecological economy system in Jilin Province are divided in order to facilitate the valid use of land resources and the reasonable arrangement of agr-productivity.
8.Through the introduction of the concept of wetland, the man-made wetland ecosystem, the domestic-and-foreign man-made wetland technology as well as the wetland park related content, with analysis of the Heping Road overpass ground landscape design of Hubei province Wuhan TianXinzhou bridge, it emphatically studies and discusses the construction, the details of technical processes and the embodiment action of man-made wetland garden in the overpass ground landscape.
9.On the theories and principles of modern ecology, such as ecosystem ecology, landscape ecology, and mountain science, a division system with four classes were established: forest region, sub-regions, sub-sub-region and small region according to their spatial structure and geographical characteristics of forest ecosystems in Yunnan hot regions.
10.The results showed that the total annual general service value of the forest ecosystem in Wuyishan Scenery District is up to 202 million Yuan, of which, 3.55 million Yuan is from storing water, 78.16 million Yuan from soil conservation, 42.74 million Yuan from carbon dioxide fixation, 32.32 million Yuan from the output of standing economic trees and forest products, 13.69 million Yuan from forest landscape and tourism, 0.069 million Yuan from biodiversity protection.
