| 承德农业生态系统分析 |
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| 引用本文： | 孟宪峰,张月丛.承德农业生态系统分析[J].承德师专学报,2011(2):48-50. |
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| 作者姓名： | 孟宪峰 张月丛 |
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| 作者单位： | 河北民族师范学院物理系; |
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| 摘 要： | 承德市农业生态系统尚未摆脱传统农业模式,无偿利用的环境资源能值较高,经营粗放,生产效率不高,但生产潜力巨大。承德农业生态系统的表土损失率不高,比河北其它各市的土壤保持价值量都要大,这对于作为京津水源供应地和生态屏障地来说,则具有非常重要的意义。
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| 关 键 词： | 承德市 农业生态系统 措施 |
An Analysis of Agricultural Ecological System in Chengde |
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| Meng Xianfeng,Zhang Yuecong.An Analysis of Agricultural Ecological System in Chengde[J].Journal of Chengde Teachers College for Nationalities,2011(2):48-50. |
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| Authors: | Meng Xianfeng Zhang Yuecong |
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| Institution: | Meng Xianfeng,Zhang Yuecong(Department of Physics,Hebei Teachers College for Nationalities,Chengde,Hebei 067000) |
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| Abstract: | The agroecosystem of Chengde City has not gotten rid of the traditional agricultural model.Environmental resources emergy used freely is higher,and with extensive management and lower production efficiency,but productive potential is great.Loss of topsoil of Chengde agroecosystems is not high,but bigger in the soil conservation value than that of other cities of Hebei Province,which has very important significance for a water supplier to Beijing and Tianjin and ecological protective screen. |
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| Keywords: | Chengde agroecosystem measures |
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