1) farmland- leveling precision evaluation system
农田平整精度评价系统
3) land-leveling precision
田面平整精度
4) Agricultural land evaluation system
农田评价
1.
Agricultural land evaluation system is perfected based on quality and site of farmland in order to be accustomed to the farmland protection.
为揭示农田利用可行性 ,提出农田立地概念 ,建立农田评价体系 ,以京郊房山区良乡为例 ,基于GIS技术评价农田质量 ,分析农田立地 ,综合评价农田 ,为划定基本农田提供客观依据 ;根据农田评价评分数值分布 ,通过模糊稀疏度算法模型 ,实现农田自动分等定级 ,减少了界定农田等级指标的主观性。
5) farm leveling
农田平整
6) Farmland system
农田系统
1.
Dynamics characters of energy input and output in farmland system;
村域农田系统能量投入产出的动力学特征研究
2.
Through the investigation of 482 farmland systems of Wugou village, the author would like to explain the inherent causes of how the peasants in the mountain area are not to implement the reforesting policy.
通过对吴沟村全村482块农田系统的有关调查,旨在解释为何山区农民落实退耕还林政策的内在驱动不及。
3.
According to the peasant households census data, the paper compares and analyses the structure of energy input and output and points out that the farmland system of the Wugou s village has a single structure and a high-input and low-output; the farmland system of the Hutuo s village is a low-input and high-output, so the ratio of the Hutuo s village is higher than Wugou s one.
根据农户调查数据,对比分析山地与平原村农田系统各类物质总能量的产投结构及产投比,指出:吴沟村以有机能投入为主,结构单一,是高投入、低产出、低效率系统,而滹沱村是低投入、高产出、高效率的系统;吴沟村农田系统产投比(0 50∶1)小于滹沱村(2 41∶1);对小麦、玉米两大粮食作物能量的投入与产出进行了回归模拟,从农田系统产投结构看,种玉米比小麦更合算;对不同地块类型的投入产出进行了回归分析,探索其最佳投入方案;最后,指出影响农田系统的主要因素:农业天生的弱质地位,人力资源外流,农田地块破碎等。
补充资料：地下水水资源评价(见水资源评价)
地下水水资源评价(见水资源评价)
d ixiashui shuiziyuan Ping】ia地下水水资源评价见水资源评价。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条