1、

In limiting layer, ecological protection function and tree species structure have high contribution to the stability of protection forest system in oasis irrigation area;

在准则层中,功能稳定性较强而结构合理性较脆弱;在约束层中,林分结构和生态防护功能稳定,经济效益较稳定,林种结构和树种结构脆弱,社会效益极脆弱;

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2、

factors affecting heavy metal accumulation in soil of sewage irrigation area

污灌区土壤重金属累积影响因素研究

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3、

For any actual problem of irrigation program, the proposed model will give more rational results, which can be used in the practice of irrigation area.

对于任何一个实际的灌溉规划问题,不管目标函数和约束条件如何,本文给出的这一模型均可提供较为合理的成果,用于指导灌区实践。

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4、

Study on use pump in rice irrigation area to irrigate farmland during the pump is free

利用水田灌区泵站空闲期发展旱田灌溉技术的研究

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5、

The influence of digging well to combat drought on ecology of oasis in Ningxia irrigation area

宁夏引黄灌区抗旱打井对绿洲生态的影响

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6、

The lighthouse irrigation area is the liaoyang city food and quality products, the main production base of existence and development of beacon irrigation area impetus to the development of rural economy.

灯塔灌区是辽阳市粮食和优质农产品的主要生产基地,灯塔灌区的存在和发展带动了区域内农村经济的发展。

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7、
8、

Effect of human activities on groundwater in Alar Irrigation Area in Xinjiang

人类活动对新疆阿拉尔灌区地下水的影响分析

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9、

The Influence of Levying Petroleum Tax to Farming Production in Linxia Irrigation Area

浅析燃油费改税后对宁夏灌区农业生产的影响

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10、

The other Tentative Idea of the Change From Oil Fare to Oil Tax& the Setting-up of Vehicle Journey Tax The Influence of Levying Petroleum Tax to Farming Production in Linxia Irrigation Area

燃油费改税的另一种设想&构建车辆行程税浅析燃油费改税后对宁夏灌区农业生产的影响

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11、

Economic technical indicators of irrigation area On some indicates in general planning in residential complex

灌区技术经济指标体系居住区总体规划中常遇到的几个指标

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12、

With water amount coming from Yellow River reduced, the water flow from Yellow River to Ningxia irrigation area has reduced 30%. Digging wells to combat drought results in the decrease of underground water level in the irrigation area and causes individual lakes dry out.

近年黄河来水减少,宁夏引黄灌区灌溉用水减少了30%,灌区实施抗旱打井工程,造成灌区地下水位下降,个别湖泊出现干涸;

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13、

Research on Optimal Operation of Water Resources of Multi-reservoir System in the Irrigation Area of Manas River

玛纳斯河灌区库群系统水资源优化调度研究

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14、

Information System Design of Nine Large Irrigation Area in Shaanxi Province

陕西省九大灌区信息化系统设计

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15、

statistics results show that pernicious composition content of the soil in guhai irrigation area is lower than limitation of ii level standard of state environment standard ( gb15618-1995).

统计结果表明,固海扩灌区土壤有害成份含量符合《土壤环境质量标准》(GB15618-1995)二级标准;

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16、

Test and Analysis to Water-saving Irrigation Technology in Ningxia Irrigation Area

宁夏引黄灌区小麦节水灌溉试验研究

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17、

Distributed hydrological model for irrigation area based on SWAT ⅱ. Model application

基于SWAT的灌区分布式水文模型&Ⅱ.模型应用

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18、

According to environment status of sand chamber section in Yellow River irrigation area, to table a proposal of environment treatment.

根据引黄灌区沉沙池区农业环境及农村环境现状,提出了治理该区域环境的具体措施。

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19、

Qingzhou City Ren River Irrigation Area Irrigation Project Environmental Impact Assessment

青州市仁河灌区灌溉项目环境影响评价

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20、

The design and implement for the arranging and compiling data system in Dujiang weir irrigation area

都江堰灌区资料整编系统的设计和实现

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