| 农牧交错带农田草地界面土壤温度的影响域 |
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| 引用本文： | 刘洪来,黎琳,陈彦希,陈超.农牧交错带农田草地界面土壤温度的影响域[J].贵州农业科学,2011(9). |
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| 作者姓名： | 刘洪来 黎琳 陈彦希 陈超 |
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| 作者单位： | 贵州大学动物科学学院;中国农业大学动物科学学院; |
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| 基金项目： | 贵州省科学技术基金项目“喀斯特地区农牧交错带土壤资源可持续利用研究”[黔科合J字(2011)2325]; 贵州大学2011年大学生创新性实验计划项目“农牧交错带农田-草地界面土壤温度影响域分析”,贵州大学引进人才科研项目“贵州主要生态型农牧交错带农田-草地界面特征研究”(2010003) |
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| 摘 要： | 为确定华北农牧交错带农田草地界面土壤温度的影响域,采用移动窗口法对该区域的农田-草地景观界面0~20cm土壤温度影响域进行了研究。结果表明:界面温度的影响域草地为7m,农田为10m,总宽度17m,属渐变型界面,农田-草地景观界面可划分为农田、草地和农田-草地3个功能区。农田-草地复合功能区,土壤温度变化剧烈;而在草地功能区与农田功能区内土壤温度基本呈线性分布;农田生态系统土壤平均温度比草地约高2℃。
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| 关 键 词： | 农牧交错带 农田-草地界面 移动窗口法 土壤温度 影响宽度 |
Edge Influence of Soil Temperature at Farmland-Grassland Boundary in Agro-pasturage Ecotone of China |
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| LIU Hong-lai,LI Lin,CHEN Yan-xi,CHEN Chao.Edge Influence of Soil Temperature at Farmland-Grassland Boundary in Agro-pasturage Ecotone of China[J].Guizhou Agricultural Sciences,2011(9). |
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| Authors: | LIU Hong-lai LI Lin CHEN Yan-xi CHEN Chao |
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| Institution: | LIU Hong-lai1,2,LI Lin1,CHEN Yan-xi1,CHEN Chao1*(1.College of Animal Science,Guizhou University,Guiyang,Guizhou 550025,2.College of Animal Science,China Agriculture University,Beijing 100193,China) |
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| Abstract: | The moving split-window technique was adopted to detect the depth of edge influence on surface soil temperature of agro-pasturage landscape boundary in ago-pasturage ecotone of China.The result showed that the depth of edge influence was 17 m from 7 m in grassland and 10 m in cropland,and it was categorized to gradually change type boundary.The agro-pasturage landscape boundary may be divided into three functional zones,that is,grassland zone,cropland zone and compositional ecotone zone.The soil temperature... |
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| Keywords: | agriculture-pasturage ecotone farmland-grassland boundary moving split-window technique soil temperature influence width |
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