| With the help of integration technologies of GIS and mathematical model, this thesis cited Fujian province forest land, orchard, tea garden, meadow, uncultured grass land, sand and barren land as the evaluation objects. In the first place, it discussed and established the land suitability evaluation factor systems of the main Magnoliaceae precious tree species including Magnolia officinalis, liriodendron, Tsoongiodendron odorum, Michelia fujianensis, michelia maudiae and MangLietia Yuyuanensis Law. In the second, Trend-surface analysis, Kriging or Inverse distance weighted interpolation were applied to build the spatial and attributive database of the suitability evaluation factor system, fuzzy subject function, AHP model, Limiting index comparison, correctional weighting-multiplication model, dynamic clustering analysis were used to assess quantity and quality on land resources for main Magnoliaceae precious tree species in Fujian. At last, on the basis of the research on suitability evaluation, it focused on Fujian Magnoliaceae scientific optimized zoning further according to the geographical position advantages, contiguous and concentrated land size. The results revealed that:1. The area of suitable land of Magnolia officinalis, liriodendron, Tsoongiodendron odorum, Michelia fujianensis, Michelia maudiae and MangLietia Yuyuanensis Law accounted for56.58%,76.38%,84.37%,55.29%,50.86%and97.25%respectively of the total area of the evaluation objects in Fujian. The high suitable land area of relevant tree species accounted for21.89%,21.22%,21.44%,20.57%,15.58%and21.27%respectively of the suitable. The area of medium suitable land accounted for63.14%,60.41%,58.92%,59.70%,80.94%and58.92%respectively of the suitable. The area of low suitable land accounted for14.97%,18.37%,19.63%,19.73%,3.48%and19.81%respectively.2. The optimal zoning shows that Magnolia officinalis planting land use zoning in Fujian province has a total area of4454123.36hectare, of which the priority suitable planting area, the secondary and general accounted for7.77%,73.46%and21.36%respectively of Magnolia officinalis planting land, and besides the key development area would be recommended in Pupheng, Wuyishan, Songxi, Jianou, Yanping and Jianyang county in Nanping city, Sha county in Sanming city. Liriodendron planting land use zoning has a total area of5773240.84hectare, of which the priority suitable planting area, the secondary and general accounted for Magnolia officinalis planting land were25.90%,73.86%and0.24%respectively, Shaowu, Wuyishan, Jianou, and Jianyang county in Nanping city, Sha and Youxi county in Sanming city, Gutian, Zherong and Pingnan county in Ningde city would be recommended as the key development area. Tsoongiodendron odorum planting land use zoning has a total area of4454123.36hectare, of which the priority suitable planting area, the secondary and general accounted for Magnolia officinalis planting land were26.65%,73.46%and0.22%respectively, and the prior development area should be set in Jianou, Yanping, Jianyang and Shunchang county in Nanping city, Nanjing, Liancheng, Xinluo and Zhangping county in Longyan city, Yongan, Qingliu, Sha and Youxi county in Sanming city. Michelia fujianensis planting land use zoning has a total area of4108817.17hectare, of which the priority suitable planting area, the secondary and general accounted for Magnolia officinalis planting land were25.57%,74.01%and0.41%respectively, and the key development area would be recommended in Jianou, Yanping county in Nanping city, Yongan, Sha, Jiangle and Youxi county in Sanming city. Michelia maudiae planting land use zoning has a total area of3381245.81hectare, of which the priority suitable planting area, the secondary and general accounted for Magnolia officinalis planting land were22.71%,76.93%and0.36%respectively, Wuyishan, Shaowu, Guangze, Jianou, Zhenhe, Yanping and Shunchang county in Nanping city, Xinluo, Shanghang, Changting and Wuping in Longyan city, Gutian, Pingnan, Zhouning and Zherong in Ningde city would be better development areas than the others.MangLietia Yuyuanensis Law planting land use zoning has a total area of7220395.70hectare, of which the priority suitable planting area, the secondary and general accounted for Magnolia officinalis planting land were26.50%,73.24%and0.27%respectively, and it has manifested that the region of Jianou, Shaowu and Yanping county in Nanping city, Liancheng and Zhangping county in Longyan city, Yongan and Sha county in Ningde city would be of high quality to plant such a kind of tree.Finally, according to the result of suitability evaluation and optimized zoning of land resources for main Magnoliaceae prescious trees in Fujian, several countermeasures about land resources were put forward in view of the status quo and existing problems of the development of Magnoliaceae prescious trees in Fujian province. |
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