杜超群, 吴昊, 袁慧, 等. 湖北主要造林树种生态区划研究[J]. 西南林业大学学报(自然科学), 2023, 43(6): 1–7 . DOI: 10.11929/j.swfu.202210001
引用本文: 杜超群, 吴昊, 袁慧, 等. 湖北主要造林树种生态区划研究[J]. 西南林业大学学报(自然科学), 2023, 43(6): 1–7 . DOI: 10.11929/j.swfu.202210001
Du Chaoqun, Wu Hao, Yuan Hui, Xu Yezhou. Study on Ecological Regionalization of Main Afforestation Species in Hubei Province[J]. Journal of Southwest Forestry University, 2023, 43(6): 1-7. DOI: 10.11929/j.swfu.202210001
Citation: Du Chaoqun, Wu Hao, Yuan Hui, Xu Yezhou. Study on Ecological Regionalization of Main Afforestation Species in Hubei Province[J]. Journal of Southwest Forestry University, 2023, 43(6): 1-7. DOI: 10.11929/j.swfu.202210001

湖北主要造林树种生态区划研究

Study on Ecological Regionalization of Main Afforestation Species in Hubei Province

  • 摘要: 利用湖北省主要造林树种杉木、南方型黑杨、湿地松和日本落叶松人工林的位置信息及气候、地形和土壤等42个环境因子数据,采用最大熵模型和ArcGIS软件开展4个树种生态栽培区划研究,探讨4个树种人工林的分布格局。结果表明:4个树种的MaxEnt模型预测AUC值为0.855~0.951,通过环境变量的筛选,模型预测精度提高0.23%~3.59%。生物气候因子和地形因子在4个树种适生区预测模型构建过程中累计贡献率达到85%以上,是影响树种分布的主要生态因子,其中海拔在湿地松、日本落叶松和南方型黑杨中的贡献率均排在首位,达到31.48%~47.80%。4个树种的生态区可分为最适宜区、较适宜区和不适宜区3个等级,分别绘制了各树种的适生地理分布图,并从整体上明确了这4个主要造林树种人工林的分布格局,即鄂西北、鄂西南和鄂东南地区适宜发展杉木人工林,鄂中江汉平原地区主要为南方型黑杨,鄂北和鄂东丘陵岗地主要为湿地松,鄂西亚高山区适宜发展日本落叶松人工林。

     

    Abstract: In order to clarify the distribution patterns of Cunninghamia lanceolata, Populus deltoides, Pinus elliottii and Larix kaempferi in Hubei Province, the software MaxEnt and ArcGIS were used to classify cultivation regions of 4 species in Hubei Province with data of 42 environmental factors including climate, topography and soil and the known distribution information. The results showed that the predicted AUC values of the MaxEnt model for the 4 tree species ranged from 0.855 to 0.951, and the prediction accuracy of the model was improved by 0.23%3–3.59% through the screening of environmental variables. Bioclimatic factors and topographic factors contributed more than 85% to the prediction model construction of the suitable areas of the 4 tree species, which were the main ecological factors affecting the distribution. The contribution rate of altitude was the first in all species, reaching 31.48%–47.80%. The ecological areas of the 4 tree species could be divided into 3 grades: the most suitable region, the more suitable region and the less suitable region. The distribution maps of the suitable land of each tree species were drawn respectively, and the distribution patterns of the 4 main afforestation tree species were clarified. It is suitable to develop C. lanceolata plantation in northwest, southwest and southeast of Hubei. It is suitable to develop P. deltoides in Jianghan Plain area of central Hubei. The hilly areas of north and east Hubei are mainly P. elliottii, and the high mountain areas of west Hubei are suitable for the development of L. kaempferi.

     

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