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摘要: 山核桃Carya cathayensis是浙江特有的经济林种之一，浙江的土壤、气候等环境条件比较适宜山核桃的生长，但由于区域布局的不合理制约了浙江山核桃的发展。根据山核桃产量与气象条件的关系和山核桃的生物学特性，提出了山核桃栽培的气候区划指标为年平均气温、年降水量、年日照时数和花期晴天数。综合考虑4个气候因子以及坡度、坡向、海拔高度、土壤类型和土壤质地等环境要素，应用层次分析法确定9个影响因子权重，基于应用统计学方法和地理信息系统，建立山核桃栽培区划的综合评估模型。结合浙江省土壤地理条件和土地利用现状，屏蔽不适宜山核桃种植的地块，将浙江省山核桃栽培综合区划划分为最适宜区、适宜区和不适宜区等3个等级。结果表明：浙江省山核桃最适宜栽培面积约占评价区域的26.31%，适宜区栽培面积约占33.39%，不适宜区栽培面积约占40.30%。图1表3参17Abstract: Carya cathayensis, a special forest and fruit product, is suitable to the soil and climate of Zhejiang, but its development has been restricted due to irrational distribution. To provide a scientific basis for distribution and sustainable development of C. cathayensis in Zhejiang Province, geographical information system（GIS） was used to determine the best planting locations. Based on yield and weather relationships as well as biological characteristics，four climate indexes for planting：1）average annual temperature，2） annual rainfall，3）annual duration of sunshine，and 4）favorable days in florescence, were established. Then，these four climatic factors along with factors of slope, aspect, altitude, soil type, and soil texture were used with an analytical hierarchy process to weight nine factors. Next，a comprehensive regional evaluation model of C. cathayensis was established based on applied statistics and GIS techniques. Soil geographical conditions and actual landuse in Zhejiang Province were combined and regions unsuitable for planting were shielded. Planting zones were divided into three grades：optimum，suitable，and unfavorable. Results of the evaluated area for Zhejiang Province indicated that about 26.31% was optimum，33.39% was suitable，and 40.30% was unfavorable.［Ch，1 fig. 3 tab. 17 ref.］
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Key words:
- cash forestry /
- Carya cathayensis /
- GIS /
- weighting index /
- comprehensive regionalization /
- planting suitability
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链接本文:
https://zlxb.zafu.edu.cn/article/doi/10.11833/j.issn.2095-0756.2011.02.014
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