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The objectives of this study were to measure infiltration characteristics of soils on a steep betel palm farm in the Lienhuachi area of central Taiwan using simulated rainfall, and to test the adaptability of Philip's and Horton's respective infiltration models for sloping lands.

本研究经由野外模拟降雨试验,量测台湾中部莲华池坡地槟榔园入掺特性,并验证Philip及Horton入渗模式的适合性。

Its research areas Include: Climatology and biometeorology; Rainfall and its biological effects; Erosion and the deposition of sediments: dust storms; Dunes, their structure and formation; Microclimatology; Dew and hygroscopic moisture; Soil flora and fauna in arid lands; Seed germination and its improvement; Vegetational studies in desert regions worldwide; The physiology and ecology of plants and animals; Foraging patterns of mammals; Parasites and predators; Diurnal rhythmicity and phenology; The impact of grazing; Wildlife conservation; Anthropology and sociology of desert peoples; Oasis settlement; Human ecology and traditional land use; Land classification and improvement; Water control; Remote sensing; Desertification, its causes and control.

具体内容包罗万象:气候学和生物气象学;降雨和它的生物影响;沉积物的腐蚀和沉积;沙丘结构和形成;干旱地区的植物和动物群;寄生物和捕食动物;干旱地区的人类学和社会学;干旱地区的绿地建设;水控制和干旱地区的沙漠化的成因和控制等。

Farmers in Nandom spoke in alternating tones of fatigue and bloody-mindedness about their capricious rains.

南登地区的农民在谈到变化无常的降雨时,语气中充满了疲惫和绝望。

At last,We carry out stability asssessment about the vegetation in virtue of the model builded in this plot.We calculate the vegetation's ecological water requirement on May 2004: canopy of Robinia pseudoacacia L require 5.2mm, Top of Melilotus albus Desr require 32.2mm, Bottome of Melilotus albus Desr require 8.6mm, Layer of soil require 17.6mm, totalize 63.6mm,Which more 22.33 mm than the contemporaneous rainfull 41.27mm.

最后通过本次研究构建的模型对项目区植被进行了稳定性评价,计算出2004年5月份复合植被的生态需水量,分别为刺槐冠层5.2mm,草木樨上层32.2mm,草木樨下层8.6mm,土壤蒸发17.6mm,总计63.6mm,这个结果比当月的多年平均(1980-2002年)降雨量41.27mm多出了22.33mm.6月初白花草木樨收割以后,次生茬生长缓慢,我们假设草木樨没有被收割,分别计算了6月和7月的生态需水量,6月份生态需水为85.64mm,7月份为78.41mm,发现6月份水分亏缺依然严重,7月份降雨完全可以满足复合植被的蒸散需求。

Louis. It has already broken through a number of levees across Missouri. There are fears that more rain in the coming days could make matters worse.

路易斯州泛滥了,河水已经冲垮大量密苏里州的堤坝,而且预计接下来几天将有更多的降雨使得这一状况更加糟糕。

By the capacity test of bryophyte,the authors determine the different water holding abilities of different succession ages.

根据实验数据应用水箱模型,确定出了典型场降雨过程中各作用阶段水文过程模型及参数。

The result showed that the amount of total phosphorus in the soil of farmland is the highest,while the wet grassland field with arbor shrub and grassland field and bulrush field is lower than that in farmland before rain.

结果表明,降雨前农田土壤总磷的含量最高,其次为湿生草本带,乔灌草带和挺水植物带则相对较低;土壤表层总氮的含量乔灌草带最高。

There were four treatments on the hillside: artificial forest with underbrush, artificial forest without underbrush, planting tea bush on contour terrace, barren on contour terrace. The runoff depth, runoff index, water loss, soil erosion and soil organic matter erosion to the 4 treatments during 4 rainfalls were determined by using the Runoff Collector.

试验设计了人工林下地表覆盖、人工林下地表裸露、等高梯田种植茶树和等高梯田裸地对照4个处理,采用自制的径流收集器分别测定了各处理4场降雨的径流深度、径流系数、水土流失量和侵蚀量等指标。

It was found that, for the control treatment the average runoff depth was 3.72mm per 10mm, the water loss index was 37.2%, the average soil erosion was 43.6 kg*hm-2*10mm-1, and the soil erosion modulus was 7.42 t*km-2*a-1, which are all high in the 4 treatments. For the other three treatments, the surface runoff and the average soil erosion amount were 2.20%-67.08%and 43.81%-90.83%lower than those of the control, respectively. The most effective pattern for soil conservation was the artificial forest with underbrush treatment, and the best water conservation pattern was the treatment of planting tea bush on contour terrace.

结果表明,CK的平均径流深度为3.72 mm/10 mm,降水流失率为37.2%,平均每10mm降雨的土壤侵蚀量为43.6kg*hm-2,年土壤侵蚀模数为7.42 t*hm-2;其它3个不同植被覆盖处理的地表径流量比裸地对照降低2.20%~67.08%,平均土壤侵蚀量减少43.81%~90.83%;林下地表覆盖处理的保土效果最好,等高梯田种植茶树处理的保水效果最好。

This article calculate the rainwater resources capacity use of the genesis analytical method and comprehensive coefficients method according to the rainfall and the city development programs of the cantonal of Baoji.

根据陕西省宝鸡市区的多年降雨资料及城市发展规划,分别用成因分析法和综合系数法计算市区雨水资源潜力。

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