The Study On Forest Landscape Pattern And Management Countermeasure

This article take the Tianershan forest farm in 2003 the SPOT5 remote sensing image, as well as the tree farm topographic diagram and the forest bottom class in kindergarten material as a foundation, has carried on two levels of classifications to the forest landscape. In the geographic information system and the remote sensing processing software and landscape index statistics software FRAGSTATS3.3 and so on under the support, the application landscape ecology principle and the method, calculated the mottling size, the form-exponent, the multiple index, has been divided the dimension, the superiority, fragmentation, gathers and so on, has analyzed the Tianershan forest farm forest landscape pattern present situation and uses the Neuroshell 2 establishments artificial neural networks model simulation landscape change process, the analysis existence question and proposes one new countermeasure to the landscape optimization. The research result indicated that,â‘ Tianershan forest farm forest landscape pattern present situation. An entire audience level of forests landscapes altogether division is 7 kind of landscapes essential factors,Pine forest, the foliage forest, the bamboo grove and the pinery are this area main forest landscape essential factor type. The research indicated studies the region jamming phenomenon extremely universal, also is extremely serious. Among them, foliage forest and bamboo grove mottling density and mottling edge density value very big, the showing landscape fragmentation degree is high. In forest landscape type, because blindly pursues the economic to cause the coniferous forest many for the present artificial cedar forest, the foliage forest are many for the present natural secondary forest. Thus, because the jamming factor is passing through the entire landscape pattern analysis process, as well as in the process which evolves to the secondary forest, receives each kind of environmental factor the influence, causes the foliage forest landscape fragmentation degree high, the mottling type multiple index is also high; But the coniferous forest becomes the planted forest after the natural forest, receives the humanity consciously interference effect, causes the landscape fragmentation degree to reduce, the mottling type multiple index very is also small, shape rule.â‘¡Tianershan forest farm forest landscape pattern change ANN model. This article establishes the artificial neural networks simulated the Tianershan forest farm...