In addition, the content of OlsenP of soil with plants was higher than that of soil without plantfor soils with Cynodon dactylon and Ficus tikoua by 215％ and 127％.Key words: Three Gorges Reservoir; WaterFluctuationZone; phosphorous release; effective factor

種植植物的土壤在淹水后OlsenP含量大于土壤直接淹沒時的釋放量，種植狗牙根和野地瓜藤的土壤中OlsenP分別較未種植物土壤釋放量高出215％和127％小视频试看入口。

And if you are still not convinced,fall in a lake and start gulping water—and then instead of screaming the word HELP, hold up a picture of yourself drowning.

如果你仍然不信黄色wangzhan，那就跳入湖中，開始大口吞水——然后不要喊&救命&這個詞一区AV天堂综合，而是展示你在水中被淹的圖畫特黄特色免费全部视频。

Objective: To study the different and the variety of four organic acids in leaves of Isatis indigotica among different cultivated populations in water stress condition and healthy plant.

中文摘要：目的：檢測北京、內(nèi)蒙古欧美一级人与嘼免费播放、河北和陜西等4個栽培居群菘藍葉片中草酸国产黄色在线视频网站、蘋果酸、檸檬酸和抗壞血酸等4種有機酸成分含量的差異及在淹水脅迫下的變化欧美老妇曰逼。

As one of major monitoring techniques for forecasting the disasters in mine, Microseismic signal contains some special characteristics, such as rich composition of the spectrum and wide frequency band.

在煤礦開采過程中bbixx.con，煤層底板突水免费午夜性爱视频、淹井事故時有發(fā)生，嚴重影響煤礦的正常生產(chǎn)免费在线免费A片，但目前其預(yù)測的可靠程度與生產(chǎn)實際還有較大的差距国产精品亚洲欧美在线一区。

Cumulative NH4+-N is a good evaluating index of soil N-supplying not only for the first season crop, but also for two successive season crops. ND is more correct in revealing the potential mineralizable nitrogen when SON was regarded as mineralized N, although cumulative SON alone is not a good index for the potential of mineralizable nitrogen. And cumulative TSN could also be taken as an index for the potential mineralizable nitrogen to some extent.

淹水培養(yǎng)期間銨態(tài)氮累積量是評價可礦化氮的較好指標，不僅適宜于第一季作物欧洲性爱综合，而且也適用于連續(xù)兩季作物狼友在线精品视频网站；SON累積量不能單獨作為；SON累積量不能單獨作為反映可礦化氮的指標欧美肏逼mp4，但用ND反映土壤可礦化氮潛勢時久久精品嫩草影院免费看，包括SON后更加準確；TSN在一定程度上能夠反映土壤可礦化氮丝袜无码在线。

The Mount Beigu wetland is nearby Yangtze River, which undergoes seasonal flooding, and its dominant plants are Phragmites communis and Phalaris arundinacea.

鎮(zhèn)江北固山濕地是一濱江濕地99tv在线，遭受季節(jié)性的淹水，它的優(yōu)勢植物是蘆葦和虉草欧美性A一区二区。

Waterlogging stress ; Photinia L.; Root activity ; Photosynthesis

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Basically red yellow podzolic soils are rich in iron and soil submergence easily promote iron toxicity in lowland rice.

一般而言，灰化紅黃壤中鐵含量較高亚a视频在线，淹水條件很易促發(fā)低地稻田鐵的毒害国内精品视频在线观看6。

Two groups of wood(wet and air-dry wood) were tested to investigate the effects of flooding on the moisture content and ring width of Pterocarya stenoptera.

就淹水程度對2組楓楊材年輪寬度、含水率的影響進行研究国产亚洲成年网址在线观看。

When soil water content exceeds field capacity, the reducement of air in soil will cause the root breath weaken, or plant death.

此時土壤的含水量超過了田間持水量欧美黄色视频视频，在嚴重的淹水情況下，土壤中空氣減少免费看毛片的网站，會造成根系因缺氧而呼吸減弱求黄色网站网址，長時間如此還會引起植物死亡。