研究毕节市烤烟气候适宜性特征,对促进烤烟持续稳定发展具有重要意义。利用毕节市8个国家站及98个多要素自动站观测资料,基于烤烟气候适宜性评价隶属函数模型,运用ArcGIS技术对毕节市烤烟气候适宜性特征进行分析及区划。结果表明:毕节...研究毕节市烤烟气候适宜性特征,对促进烤烟持续稳定发展具有重要意义。利用毕节市8个国家站及98个多要素自动站观测资料,基于烤烟气候适宜性评价隶属函数模型,运用ArcGIS技术对毕节市烤烟气候适宜性特征进行分析及区划。结果表明:毕节市大部地区温度能满足烤烟各生育期生长需求;移栽–团棵期、旺长期市南部、成熟期全市大部降水偏多;大田期日照充足,相对湿度适宜性除大方县东北部,纳雍县大部、织金县西部及赫章县大部偏低以外,其余地区适宜性较好。毕节市烤烟气候条件总体适宜,最适宜区主要分布在海拔1500 m以下的低山丘陵河谷地带,适宜区主要分布在海拔在1500~2200 m山区,不适宜区主要分布在西部韭菜坪等海拔2200 m以上高山地区;气候变暖有利于毕节市烤烟生产。Analyzing the climate suitability for tobacco curing in Bijie is essential for ensuring the ongoing and stable growth of the tobacco curing industry. Using observational data from eight national stations and 98 multi-element automatic stations in Bijie City, this study analyzes the climate suitability characteristics for tobacco curing using a membership function model based on climate suitability evaluation. ArcGIS technology is employed to conduct the analysis and zoning of the climate suitability for tobacco curing in Bijie City. The result shows that the majority of Bijie City’s regions have temperatures that meet the growth requirements of tobacco curing at various stages of development. During the transplanting-to-budding phase and the vigorous growth period, the southern part of the city experiences excessive rainfall;during the maturity period, most parts of the city also have excessive rainfall. Throughout the field period, sunlight is abundant and relative humidity is generally suitable, except for the northeastern part of Dafang County, most of Nayang County, the western part of Zhijin County, and most of Hezhang County, where it is somewhat low. Overall, the climate conditions in Bijie City are suitable for tobacco curing. The most suitable areas are primarily distributed in the low mountain and hilly river valley zones below 1500 meters in altitude. Suitable areas are mainly located in mountainous regions with altitudes between 1500 and 2200 meters. Unsuitable regions are chiefly found in high mountain areas above 2200 meters in altitude, such as Jiucaiping in the west. Climate warming is beneficial to tobacco production in Bijie City.展开更多
烤烟的适应性强,能在不同的土壤类型和气候条件下生长。但从优质、高产的角度分析,其对生态条件的反应比较敏感,即生态条件对烟叶产量和品质影响较大。众多科研与生产经验证明,虽然不同品种及不同种植方式对烟草的品质构成起着关键作用...烤烟的适应性强,能在不同的土壤类型和气候条件下生长。但从优质、高产的角度分析,其对生态条件的反应比较敏感,即生态条件对烟叶产量和品质影响较大。众多科研与生产经验证明,虽然不同品种及不同种植方式对烟草的品质构成起着关键作用,但其内在机理却是制约烟草品质的根本原因,而生态环境则是制约烟草优质性状的关键因子,其对烟草的产量与品质的作用远强于土壤。Flue-cured tobacco has strong adaptability and can grow under different soil types and climate conditions. But from the angle of high-quality and high-yield, it is more sensitive to ecological conditions, that is, ecological conditions have a greater impact on the yield and quality of tobacco. Many scientific research and production experiences have proved that different varieties and different planting methods play a key role in tobacco quality, but its internal mechanism is the fundamental reason restricting tobacco quality, eco-environment is the key factor that restricts tobacco quality, and its effect on tobacco yield and quality is much stronger than that of soil.展开更多
研究药用植物当归在全球范围内的生态适宜区和生态特征,根据109个当归样本点和37个生态因子,利用最大信息熵模型(Max Ent)和地理信息系统(Geographic information System,GIS)对其进行全球适宜性区划。结果表明,当归生态适宜区主要集中...研究药用植物当归在全球范围内的生态适宜区和生态特征,根据109个当归样本点和37个生态因子,利用最大信息熵模型(Max Ent)和地理信息系统(Geographic information System,GIS)对其进行全球适宜性区划。结果表明,当归生态适宜区主要集中在北纬20—50°范围内的北美洲、欧洲、亚洲和南纬15—35°范围内的南美洲和非洲,共约593.07万km^2。其中生态相似度最高的区域主要分布在中国甘肃省南部、四川省、西藏自治区东部、云南省北部、贵州省、陕西省西南部等地区,可见中国十分适合当归的种植,是当归的主产区。影响当归地理分布的主要气候因子适宜值范围分别为:最暖季降水量为300—700 mm,最冷季平均温为-3—7℃,降水的季节性数值为70—98;影响当归地理分布的主要土壤因子适宜值范围分别为:碳酸钙含量为50%—60%,粘土比重为17%—24%。研究结果为当归人工引种栽培及精细化种植管理提供参考。展开更多
文摘研究毕节市烤烟气候适宜性特征,对促进烤烟持续稳定发展具有重要意义。利用毕节市8个国家站及98个多要素自动站观测资料,基于烤烟气候适宜性评价隶属函数模型,运用ArcGIS技术对毕节市烤烟气候适宜性特征进行分析及区划。结果表明:毕节市大部地区温度能满足烤烟各生育期生长需求;移栽–团棵期、旺长期市南部、成熟期全市大部降水偏多;大田期日照充足,相对湿度适宜性除大方县东北部,纳雍县大部、织金县西部及赫章县大部偏低以外,其余地区适宜性较好。毕节市烤烟气候条件总体适宜,最适宜区主要分布在海拔1500 m以下的低山丘陵河谷地带,适宜区主要分布在海拔在1500~2200 m山区,不适宜区主要分布在西部韭菜坪等海拔2200 m以上高山地区;气候变暖有利于毕节市烤烟生产。Analyzing the climate suitability for tobacco curing in Bijie is essential for ensuring the ongoing and stable growth of the tobacco curing industry. Using observational data from eight national stations and 98 multi-element automatic stations in Bijie City, this study analyzes the climate suitability characteristics for tobacco curing using a membership function model based on climate suitability evaluation. ArcGIS technology is employed to conduct the analysis and zoning of the climate suitability for tobacco curing in Bijie City. The result shows that the majority of Bijie City’s regions have temperatures that meet the growth requirements of tobacco curing at various stages of development. During the transplanting-to-budding phase and the vigorous growth period, the southern part of the city experiences excessive rainfall;during the maturity period, most parts of the city also have excessive rainfall. Throughout the field period, sunlight is abundant and relative humidity is generally suitable, except for the northeastern part of Dafang County, most of Nayang County, the western part of Zhijin County, and most of Hezhang County, where it is somewhat low. Overall, the climate conditions in Bijie City are suitable for tobacco curing. The most suitable areas are primarily distributed in the low mountain and hilly river valley zones below 1500 meters in altitude. Suitable areas are mainly located in mountainous regions with altitudes between 1500 and 2200 meters. Unsuitable regions are chiefly found in high mountain areas above 2200 meters in altitude, such as Jiucaiping in the west. Climate warming is beneficial to tobacco production in Bijie City.
文摘烤烟的适应性强,能在不同的土壤类型和气候条件下生长。但从优质、高产的角度分析,其对生态条件的反应比较敏感,即生态条件对烟叶产量和品质影响较大。众多科研与生产经验证明,虽然不同品种及不同种植方式对烟草的品质构成起着关键作用,但其内在机理却是制约烟草品质的根本原因,而生态环境则是制约烟草优质性状的关键因子,其对烟草的产量与品质的作用远强于土壤。Flue-cured tobacco has strong adaptability and can grow under different soil types and climate conditions. But from the angle of high-quality and high-yield, it is more sensitive to ecological conditions, that is, ecological conditions have a greater impact on the yield and quality of tobacco. Many scientific research and production experiences have proved that different varieties and different planting methods play a key role in tobacco quality, but its internal mechanism is the fundamental reason restricting tobacco quality, eco-environment is the key factor that restricts tobacco quality, and its effect on tobacco yield and quality is much stronger than that of soil.
文摘研究药用植物当归在全球范围内的生态适宜区和生态特征,根据109个当归样本点和37个生态因子,利用最大信息熵模型(Max Ent)和地理信息系统(Geographic information System,GIS)对其进行全球适宜性区划。结果表明,当归生态适宜区主要集中在北纬20—50°范围内的北美洲、欧洲、亚洲和南纬15—35°范围内的南美洲和非洲,共约593.07万km^2。其中生态相似度最高的区域主要分布在中国甘肃省南部、四川省、西藏自治区东部、云南省北部、贵州省、陕西省西南部等地区,可见中国十分适合当归的种植,是当归的主产区。影响当归地理分布的主要气候因子适宜值范围分别为:最暖季降水量为300—700 mm,最冷季平均温为-3—7℃,降水的季节性数值为70—98;影响当归地理分布的主要土壤因子适宜值范围分别为:碳酸钙含量为50%—60%,粘土比重为17%—24%。研究结果为当归人工引种栽培及精细化种植管理提供参考。
