地力
- soil fertility;land capability;productivity of the land
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[soil fertility;productivity of the land] 土壤肥力,土壤供应作物营养的能力
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为了培肥地力,模式养分平衡要求N盈余在40%以上,以实现绿洲农业生态系统养分良性循环。
In order to fertilize the soil fertility , the model of nutrient balance demands that the surplus of N should be over 40 % so as to achieve a good nutrient cycle in the oases agro-ecosystem .
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种植苜蓿改良培肥地力的研究初报
Initial research report on soil fertility improvement by planting Medicago sativa
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地力耗尽的土地上种不了庄稼。
You cannot grow crops on exhausted land .
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这一地区土地的地力都已耗尽,不能再种庄稼了。
The whole area has been farmed out , and no crops will grow there now .
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基于GIS的广德县耕地地力定量评价
Quantitative Assessment of Cultivated-Land Capacity in Guangde County Based on GIS
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GIS支持下的耕地地力评价方法研究
Research on the evaluation method of farmland supported by GIS
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GIS支持下的莆田县耕地基础地力评价与可持续利用对策
Quality evaluation and sustainable use countermeasures of cropland in Putian County by GIS
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基于GIS的华中丘陵区耕地地力评价研究
Evaluation of the farmland productivity of hilly region of central China based on GIS
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基于GIS的县域耕地地力评价、动态分析及改良利用研究
GIS Supported Cultivated Land Fertility Evaluation , Dynamic Analysis , Improvement and Utilization at County Level
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基于GIS的鄂州市地力调查与质量评价及乡镇农田速效养分评价与应用
Assessment of Soil Quality and Environment for E-Zhou City , Effective Nutrient Evaluation and Application in Township Cropland Based on GIS
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通过这些模型方法与GIS和RS结合,快速准确地完成耕地地力评价,并将评价结果成图输出。
Being integrated these methods and models with GIS and RS data , the productivity of cultivated land is evaluated rapidly and exactly .
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本研究以SOTER数据库为基础,建立了基于AHP法的耕地地力评价系统。
A natural productivity evaluation system was established based on SOTER and AHP .
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地力水平与施氮量对小麦淀粉RVA谱特征的影响
Effects of N Application Rate on RVA Profile Characters under Different Land Fertility Levels
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本法可用于不同深度土壤层CO2存储量、释放量变化的测算,以及植被或地力恢复速率的评价。
The method can be used for estimating CO2 storage in soil , measuring the changes of CO2 released by soil and evaluating the recovery rates of vegetation and land productivity .
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结果表明:小区试验不施氮对照(CK)处理产量达到了7855.0kg/hm2表明洪湖试验地土壤基础地力很好,土壤供氮能力很强。
The grain yield of the control ( no N application ) reached 7855.0 kg / hm2 showed that soil N fertility was very high at Honghu .
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为此,本文以湖北省鄂州市为试点进行了耕地地力调查,利用先进的计算机技术及GIS工具,实现了对耕地地力的调查评价。
This dissertation , taking E Zhou city of HuBei province as an example and employing advanced technology of computer and GIS ( Geographical Information System ) carried out the survey of land capacity and its assessment .
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研究建立了荆州市耕地地力评价指标体系,选取了有机质、有效磷、速效钾、有效锌、质地、pH、剖面构型、地貌类型、成土母质、灌溉保证率和排涝能力11项指标。
The system have 11 indicators , including the organic matter , phosphorus , potassium , zinc and effective , texture , pH , profile configuration , landform type , soil parent materials , guaranteed rate of irrigation and drainage capacity .
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而速效钾含量变化规律性不明显。因此,杉木初植密度尽量控制在2805&3750株/hm2之间,以利于杉木产量提高和地力维护。
The planting density of Chinese fir must be confined from 2805 to 3750 trees per hectare in order to raise the yield and maintain the soil fertility .
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首先根据CCD摄像机采集的图像建立虚拟环境模型的初始模型,再利用远地力觉和位置传感器信息对初始模型进行校验。
First , the model of the slave hand and its environment was initialized with images captured by a CCD camera , then the initialized model was modified by remote force and position information to ensure its accuracy .
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长江上游典型地区基于SOTER数据库的耕地地力评价
Natural Productivity Evaluation of Cultivated Land Based on SOTER Database in the Typical Region of Upper Reaches of the Yangtse River
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低施肥水平不足以弥补竹林高产出所消耗的养分,K素在竹林培育和土壤地力维持及养分平衡中有重要作用。
The result indicated that low level fertilization can not recruit the heavy exhaust of the high production in the bamboo forest , and K element has an important affect on the cultivate of the bamboo forest , soil fertility maintain and keep nutrient balance .
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GIS是依托地理科学的信息技术,在地理科学领域得到了更加广泛、深入的应用,如耕地地力评价、土地适宜性评价、土地资源管理与规划等。
Depending on improvement of geographic information technology , GIS is widely used in many fields of geography , such as productive evaluation of cultivated land , land suitability assessment , land resources management and planning . GIS also plays an important role in country land resources management .
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稻田地力贡献与合理施肥
Study on the Contribution of Paddy Soil Fertility and Optimum Fertilization
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寒地稻草还田培肥地力技术研究
Study on Straw Returned Field and Enrich Fertility in Cold Region
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沿海地区地力衰退的原因分析及防治措施
Reasons Analysing for Land Fertility Declining and Countermeasures in Coastal Area
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改土培肥,提高地力。
And 5 , ameliorating soil and improving soil fertility .
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毛竹竹阔混交林群落地力保持研究
Study on the Productivity Maintenance of Bamboo and Broad-leave Tree Mixed Stands
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基础地力中等的耕地占50%;
The infield with medium soil fertility is 50 percent ;
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湖北省苇田土壤肥力状况与地力分级
Fertility conditions and quality assessment of reed soil resource in Hubei Province
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河南省耕地地力调查与评价
Investigation ard Evaluation on Cultivated Land Fertility of Henan Province