旱季

Along the Mekong River, flooding is becoming increasingly worse for the downstream countries in recent years while aridness is also getting worse during dry seasons.

沟通在湄公河流域，这几年下游国家的洪灾越来越严重，但旱季时却变得更加干旱，那里的人们感到很气愤，认为是中国在上游不负责任地修大坝造成的结果。

This biome usually has warm temperatures year-round and alternating dry and wet seasons (Figure 5-12, top graph).

这种生物群落通常有温暖的气候全年和交替旱季和雨季（图5-12 ，图的顶端）。

Chaparral and maquis are seasonal and have low rainfall witha prolionged dry season.

北美夏旱灌木群落和马基群落是季节性的而且降雨少又具有很长的旱季。

Living in cold regions will be hibernating snails, the type of life in the tropics will be dormant during the dry season, dormant when the mucus secreted in the formation of a layer of dry mouth closed shell, the body hidden in the shell, when temperature and humidity out of the activities when appropriate .

在寒冷地区生活的蜗牛会冬眠，在热带生活的种类旱季也会休眠，休眠时分泌出的黏液形成一层干膜封闭壳口，全身藏在壳中，当气温和湿度合适时就会出来活动。

The results were as follow: At fine, cloudlet and cloud weather in rainy season,the mean value of CO 2 content varied in a range of 349 to 350ml/m\+3 at 2.8m above the canopy, 346 to 348ml/m\+3 at 0.8m above the canopy, 345 to 349ml/m\+3 at 16m inner the forest and 352 to 357ml/m\+3 at 5m above ground in the period from 9:00 to 18:00.The CO 2 content in rainy season was lower than that in dry season. At the same weather and space-time, CO 2 content in rainy season was higher than that of CO 2 in dry season at both day and night. According to the grads calculation, there were the CO 2 flux from atmosphere to canopy with 0.61×10 -6 and 0.71×10 -6kg/(m 2·s) during day time in dry and rainy seasons respectively.

采用梯度法及CI-301PS CO2系统，实现了海南尖峰岭热带山地雨林近冠层CO 2、微气象因子梯度观测研究，结果表明：雨季晴、晴间少云及多云天气，9：00～18：00CO 2浓度平均值分别在349～350ml/m3(冠上2.8m)、346～348ml/m3(冠上0.8m)、345～349ml/m3(林内16m)、352～357ml/m3(林内5m)，较旱季相应天气分别小14～17.5、10.1～23.7、1 6.4～35.7和18.1～36.1ml/m3；1：00～8：00，则雨季CO2浓度大于旱季；梯度浓度廓变量和实时动力计算反映出，8：00～18：00CO2通量由大气向林冠层，旱、雨季平均CO2通量分别为0.61×10-6kg/(m2·s和0.71×10-6kg/(m 2·s)，19：00通量甚微，20：00～7：00CO2通量则由林冠向大气，平均CO2通量分别为0.36×10-6kg/(m2·s)和0.32×10-6kg/(m2·s)；雨季昼夜大气流向冠层的净CO2通量是相应旱季的1.56倍。

Shoot dieback in late dry season was observed in 9 out of these 22 species.

在这22种植物中，有9种植物的顶部枝条在旱季末期出现枯死现象。

During the dry season, sapwood specific hydraulic conductivity K(subscript s was significantly lower compared to that of the wet season in Cleistanthus sumatranus and Lasiococca comberi var.

结果表明，与雨季相比三种植物的叶片凌晨水势在旱季都有显著的降低，说明该生境的植物在旱季遭受较为严重的土壤干旱胁迫。

Pseudoverticillata, but there was no significant change in Celtis wightii. There was no significant change in leaf area specific hydraulic conductivity K(subscript l between the two seasons in all the three species, which may caused by the adjustment in hydraulic architecture through partial loss of leaves during the dry season. In the dry season, maximum carbon assimilate rate A(subscript max was significantly lower than that of the wet season in all the three species.

除油朴的枝条边材比导率K(下标 s在旱季和雨季没有显著性差异外，尖叶闭花木和轮叶戟的K在旱季都有显著的降低；而枝条的叶比导率K(下标 l三树种在两个季节间均无显著变化。K在旱季没有显著性降低，可能是常绿树种在旱季通过脱落部分叶片以调整其水力结构来保持较高的单位叶面积的水分供应。

The plantation defoliated in dry seasons while the mountain rain forest was tall and dense evergreen broadleaved forest and kept green in dry season.The mountain rain forest\'s arbor layer contained 3 layers.Relatively open space under the canopy,rare shrub,sparse grasses,very tall wood vines and rich epiphytes were found in it.4 Afforestation did not change the life form spectrum significantly.

西南桦人工林的乔木层在旱季落叶，而山地雨林外貌为高大、常绿、茂密的阔叶林，即使旱季也仍保持林冠葱绿的外貌，乔木层可明显的分为3层，林下比较空旷，灌木植被少见，草本植物分散，另外具有高大的木质藤本植物和附生植物。4人工造林对群落的物种生活型谱影响不大。

A planting pit about 40 cm on each side, containing a mix of surface soil, well-rotted manure and 100 g of treble super phosphate, should be prepared at the end of the dry season and the seedling planted out at the beginning of the rainy season.

在旱季结束时做好准备，在雨季一开始就种植。（在北美，一般5月到10月为旱季，12月到次年3月为雨季，4月和11月为旱、雨季过渡期。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。