水田

GIS技术在土地质量评价中的应用&以苏州市水田为例

Evaluation of land quality based on gis & a case study on paddy field in Suzhou

磷酸酶的活性与有机质、全P和速效P都呈正相关，但与有机质的相关性不显著；与速效P的相关性只在水田中达到显著水平；

There is positive correlation between the phos - phatase activity and soil organic matter , total P and available P. There is notably positive correlation between the phosphatase activity and soil available P in the paddy field .

旱地变水田。

Dry land has been turned into paddy fields .

过去这里的水田多数只种一季，现在全部种两季。

Most paddy fields here used to yield only one crop a year , but now they all yield two .

水田露水N、P含量低于湿地露水。

N and P content was lower in paddy dew than it in wetland .

水田拖拉机驱动轮CAD浅析

A Preliminary Discussion to the Drive Wheel CAD of Paddy Tractor

水分状况对水田土壤N2O排放的影响

N_2o emission from paddy soil as affected by water regime

施肥对水田非生长季土壤中矿化氮的累积以及N素损失没有明显影响。

Fertilization has no obvious impact on nitrogen accumulation and loss to paddy land during non-growing season .

尿素涂层施入水田后对NH3和NOX挥发影响的研究

Effect of Coated Urea on Nitrogen Volatilization in Paddy Soil

VB程序在通河县水田灌溉制度设计中的应用

Application of VB Software in Rice Irrigation System Design of Tonghe County

并提供了12马力机耕船导向圆盘在水田直行时可选用的D、W、H、θ的具体数据。

Practical data of D , W , H and θ are provided for 12 hp boat-type tractors .

基于遗传算法和GIS的县域水田种植制度空间布局优化

Optimization of spatial distribution in paddy field cropping system based on GIS and gene algorithm in the scale of county

浙江富阳金属冶炼厂周围水田土壤-水稻系统中As、Se含量特征

An Investigation on Arsenic and Selenium in Paddy Soil-Rice System in the Vicinity of Metal Smelters in Zhejiang Province

土壤化学性质表现为：Al3+水解产生大量H+，降低了水田湛水层和土层的pH值；

The soil chemistry nature performance is Al ~ ( 3 + ) hydrolyzed and produces massive H ~ + , pH of water and soil reduced ;

施用废渣可显著提高水田土壤硅素释放速率，增加土壤硅素释放量，提高土壤平衡液pH值。

For some treatments applied slag mucks , silicon liberation velocity and silicon liberation accumulation amount of soil was improved significantly , and pH of balanced solution increased .

转Bt基因作物的环境释放对土壤及其根系微生物生态的影响研究主要集中在旱田作物，至今未见有关水田转Bt基因水稻对土壤及水稻根系微生物生态安全和风险性研究报导。

Little is known about the potential impacts of the environmental release of Bt transgenic rice on soil microbiota and their processes .

本文通过田间采样分析和室内培育试验，研究了不同利用年限的3种红壤水田土壤中溶解有机C（DOC）的含量动态和生物降解特征。

Dynamics and transformation of dissolved organic carbon ( DOC ) in paddy soils of the red soil region were studied by sampling analysis and laboratory incubation .

通过随机抽样和农户推荐，对西双版纳大卡老寨12户农民的水田采用典型取样法设立48个1m2（1×1m）的样方进行调查并结合现场社会经济状况调查。

Twelve sampling plots of wet-rice field were investigated of twelve households of Daka , Xishuangbanna , Yunnan .

四种土地的CO2排放通量呈现明显的季节性变异，除水田外，其排放速率都是夏季高于春秋季节，冬季最低。

Soil CO_2 fluxes had marked seasonal fluctuations , CO_2 emission for paddy soil were significantly lower than other soils in summer when flooded , but significantly higher in other seasons .

在水田和旱土各种植模式生态系统中，除早稻机播&低桩再生稻模式中K素亏缺外，其它各模式中的各种养分均有盈余。

Among rice paddy and dry land ecosystem , except early rice machine sow-low stakerecycled rice mode'K is usually scarce , and various kinds of nutrients of all other mode are surplus .

转Bt基因克螟稻秸秆还土对水田厌氧微生物、生物学活性及其种群多样性的研究

Effect of Bt Transgenic Rice ( KMD ) at the Booting Stage on Anaerobic Microorganisms , Biochemical Processes and Bacterial Diversity in Flooded Soil

水田土壤可矿化碳也对单施有机肥响应敏感（P0.05），而分解功能稳定性则对有机无机配施更为敏感，旱地土壤中则无明显的趋势。

Carbon mineralization potential in paddy soil also significantly responded to single application of organic fertilizer ( P0.05 ), while the functional stability of decomposition increased in NPK + OM .

不同培肥方法对水田改旱后土壤盐分、pH、土壤速效养分及有机质的影响作用不同，石膏处理能明显降低土壤pH值；

The effects of different fertilizing manners on contents of total salt , soil pH , contents of soil available nutrients and organic matters were different . The gypsum treatment decreased soil pH significantly .

盆栽试验覆膜旱种稻田土壤N2O平均排放量是常规水田的3.31倍。

The N2O flux of the GCRPS field was 3.31 times of the normal waterlog paddy field in pot experimentation .

水田土（前作水稻）掺施处理的叶绿素总含量、根系活力均小于对照处理（P2）。

The chlorophyll content and root activity of tobacco in the paddy fields ( rice ) treatment are lower than CK .

水田基肥NH4HCO3施用方法对水中NH4~+&N分配量影响的模拟实验

A Simulating Test on the Effects of Application Methods of NH_4HCO_3as Base Fertilizer on the Concentration of NH_4 ~ + & N Paddy Field

施用有机物料后水田和旱地土壤DOM含量均以0～20cm土层最高，越向下含量越低。

The concentration of DOM was highest in the depth of 0 to 20 cm and decreased with depth both two soils .

水田，旱地，林地，果园的CO2年排放量分别为1129632533828gCm~（-2a~（-1）。

The annual CO_2 emission were 1129 , 631 , 533 , and 828gCm ~ ( - 2 ) a ~ ( - 1 ) for paddy , upland , woodland , and garden , respectively .

水田土壤pH值显著高于同一地区其他土壤，常德土壤的pH值和全P、全K含量略低于咸宁土壤。

The pH value of paddy fields is significantly higher than that of other soils in the same area . The soil pH value , total potassium , total phosphorus content of Changde soils is slightly lower than those of Xianning .

外源重金属元素Cd、Cu施入土壤后，无论是低剂量还是高剂量处理，水田土壤Cd元素已迁移到45cm的深度，而Cu元素迁移到30cm的深度。

After introduction of the heavy metals into the paddy soil , the downwards migration was 45 cm and 30 cm depth for Cd and Cu respectively regardless of the doses .