| 摘要: |
| 【目的】研究甘肃省高原气候条件下夏菜生产区农作物的种植结构，为提高高原夏菜产量和品质提供参考。【方法】应用主成分分析和聚类分析方法，以县(区)为基本单位，利用甘肃省夏菜种植区26个县（区）1949-2000年的气象数据，选取热量、水分、光照等指标，对甘肃省高原夏菜种植区进行气候区划，并根据高原夏菜的生物学特性及其对生态条件的需求，确定各种植区适宜种植的高原夏菜种类。【结果】将甘肃省高原夏菜种植区26县(区)划分为8个种植区，分别为：耐热蔬菜干旱种植区，适宜种植苦瓜、冬瓜、丝瓜等蔬菜；喜温耐热蔬菜干旱种植区，适宜种植洋葱、番茄、辣椒、西葫芦、菜豆、甜瓜等蔬菜；喜温蔬菜干旱种植区，适宜种植黄瓜、辣椒、西葫芦、菜豆等蔬菜；半耐寒蔬菜干旱种植区，适宜种植豌豆、甘蓝、大白菜、花椰菜等蔬菜；喜温半耐寒蔬菜干旱种植区，适宜种植洋葱、番茄、辣椒、菜豆、大白菜、甘蓝、莴苣、胡萝卜等蔬菜；半耐寒耐寒蔬菜半干旱种植区，适宜种植甘蓝、西芹、大白菜、娃娃菜、花椰菜、大蒜、菠菜、香菜等蔬菜；半耐寒蔬菜半湿润种植区，适宜种植甘蓝、大白菜、花椰菜、大葱、胡萝卜等蔬菜；半耐寒耐寒蔬菜干旱种植区，适宜种植花椰菜、甘蓝、大白菜、生菜、西芹、胡萝卜、大蒜等蔬菜。【结论】甘肃省高原夏菜种植区气候区划结果与实际夏菜布局一致，反映了甘肃省夏菜种植结构的区域差异，对该区夏菜的生产有指导作用。 |
| 关键词: 甘肃省 高原夏菜 气候区划 地理信息系统 主成分分析 聚类分析 |
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| 基金项目:国家科技支撑计划项目（2007BAD52B01） |
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| Climate division of plateau summer vegetables in Gansu Province |
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| Abstract: |
| 【Objective】 Under the plateau climate,study on the planting structure can provide reference to improve the yield and quality of plateau summer vegetables in its planting area.【Method】 Based on counties and meteorological data from 1949 to 2000 in Gansu,by using principal component analysis(PCA) and cluster analysis,selecting indexes of heat,water and light for climate division of plateau summer vegetables in Gansu Province,vegetables suitable to each planting area were determined according to the biological characteristics and the demand of ecological conditions of summer vegetables.【Result】 26 counties were divided into 8 planting designs:the arid planting region of heat tolerance vegetables,the suitable vegetables being balsam pear and wax gourd and luffa;the arid planting region of thermophilic and heat tolerance vegetables,the suitable vegetables onion,tomato,pepper,summer squash,bean,melon;the arid planting region of thermophilic vegetables,the suitable vegetables cucumber,pepper,summer squash,bean;the arid planting region of semi-hardy vegetables,the suitable vegetables pea,cabbage,Chinese cabbage,cauliflower;the arid planting region of thermophilic and semi-hardy vegetables,the suitable vegetables onion,tomato,pepper,bean,Chinese cabbage,cabbage,lettuce and carrot;the semi-arid planting region of semi-hardy and hardy vegetables,the suitable vegetables cabbage,west celery,Chinese cabbage,baby cabbage,cauliflower,garlic,spinach,coriander;the semi-humid planting region of semi-hardy vegetables,the suitable vegetables cabbage,Chinese cabbage,cauliflower,welsh onion and carrot;the arid planting region of semi-hardy and hardy vegetables,the suitable vegetables cauliflower,cabbage,Chinese cabbage,lettuce,west celery,carrot and garlic.【Conclusion】 According to the biological characteristic and demand of ecological conditions of plateau summer vegetables suitable planting vegetables in each planting region were determined. |
| Key words: Gansu Province plateau summer vegetables climate division GIS principal component analysis cluster analysis |
