1) water holding capacity
持水量
1.
In the study of litter standing crop,litter layer accumulative and water holding capacity,Quercus mongolica and Pinus koraiensis>Pi- nus koraiensis.
森林凋落物是森林生产力的重要组成部分,辽西建平付山地区试验研究,在凋落物现存量、林下凋落物层的积累量和持水量等方面均表现为油松蒙古栎混交林>油松纯林。
2.
In order to probe the influence of grassland litter in the hydrological function,the hydrological characteristic parameters of grassland litter with the increase of grazing intensity had been tested,such as water holding capacity and the water absorption rate.
结果表明:随着放牧强度的增加,草地凋落物的持水量呈现先增加后降低的趋势,重度放牧下草地凋落物的持水量仅为108g/kg,比中度放牧区的持水量1971。
3.
Sample plot method and quadrat method were used to determine the biomass,the maximum water holding capacity in 24 hours in different sections of the forest and that of total stand in the main types of forests improved in Taihang Mt.
用标准木法和样方法分别测定了林分单位面积各森林植被层的生物量及总生物量 ,用浸水法测定了各森林植被层的日最大持水量。
2) water-holding capacity
持水量
1.
Investigation on soil physical properties,water-holding capacity of forest floor and soil for the different age-stages of a subtropical evergreen broad-leaved forest was conducted in Xiaokeng,Southern Anhui Province,and the results showed that there existed significant differences in soil properties and water conservation function among different stages of the forest.
对安徽肖坑亚热带常绿阔叶林不同林龄阶段林分的土壤物理性质、凋落物持水量以及林地土壤蓄水性能等进行研究。
2.
By the methods of field survey and soaking extraction,the storage,water-holding capacity,water-holding rate,and water-absorption rate of the litters in Larix principis-ruprechtii,Larix kaempferi,Picea asperate,and Picea abies plantations in west Qinling Mountains were studied.
采用野外实地观测与室内浸提法,对秦岭西部地区4种主要针叶林(华北落叶松、日本落叶松、粗枝云杉和欧洲云杉)林地凋落物的储量、持水量、持水率和吸水速率进行了研究。
3.
By the methods of field survey and soaking extraction,the storage,water-holding capacity,water-holding rate,and water-absorption rate of the litters in 7 difference plantations in Dapingzhang Forest Park were studied.
对广东省东莞大屏障森林公园7种林分凋落物储量和持水过程进行研究,结果表明:凋落物的吸水速率随浸泡时间呈幂函数曲线降低,持水量随浸泡时间的增加呈对数曲线增长,不同森林类型的凋落物厚度为2。
3) moisture capacity
持水量
1.
In general,as far as the different parts of moisture capacity were concerned,the order of moisture capacity.
对长乐市大鹤国有防护林场防护林树种-肯氏相思、大叶直干相思、纹荚相思、卷荚相思、厚荚相思、马占相思地上部分持水量特征进行了研究。
2.
The maximum moisture capacity of the litter varied from 20.
结果表明:与当地的阔叶红松林相比灌木林在水源涵养方面也有着不可忽视的作用,5种灌木林类型的枯落物最大持水量和有效持水量分别在20。
3.
The results indicated that the maximum moisture capacity of the litter varied from 16.
对1987年营造的水曲柳针叶混交林和水曲柳纯林的静态持水能力进行了研究,结果表明:枯落物最大持水量和有效持水量分别为16。
4) Water capacity
持水量
1.
Relation between seedling water capacity and survival rate of Pinus sylvestris var. mongolica;
樟子松苗木持水量与造林成活率关系的研究
2.
forest) in the Three Gorges area in Hubei Province of China, the litter amount and the characteristics parameters, such as the maximum water capacity and water absorption speed, was studied.
该文通过对三峡库区 3种森林类型 (松栎混交林、栓皮栎纯林、马尾松纯林 )林下枯落物储量调查分析及其持水特性试验 ,得到不同森林类型林下枯落物储量、最大持水量、吸水速率等水文特征参数 。
3.
forest)in the Three Gorges area,the moss amount and the hydrological characteris - tic parameters,such as the maximum water capacity,water absorption speed,have been studied.
通过对三峡库区三种森林类型(松栎混交林、栓皮栎纯林、马尾松纯林)林下苔藓储量调查分析及其持水特性试验,得到不同森林类型林下苔藓储量、最大持水量、吸水速率等水文特征参数。
5) water retaining capacity
持水量
1.
The results of the study on moisture content and water retaining capacity of different provenances of Dendrocalamopsis oldhami in Yong’an and Longhai, Fujian province, show that the biomass of different prov- enances is positively correlated with water retaining capacity.
通过对永安和龙海不同绿竹种源含水率与持水量的研究,结果表明:不同绿竹种源的生物量与持水量呈正相关。
6) water quantity holding
水量保持
补充资料：饱和持水量测定
饱和持水量测定
measurement of saturation moisture capacity
匕aohe ehishuiliang eeding饱和持水t测定(measurement of satu-ration moisture eaPaeity)土壤农业水文特性测定项目之一，是测定土壤孔隙完全充满水时的l几壤湿度。饱和持水t所占容积等于土壤总孔隙度，可用来鉴定土壤水分饱和程度和总孔隙度。 测定方法是浸水饱和法。即在欲测地段上，用容重环刀取原状土，取土方法与测定卜壤容重时取_L相同(见土壤容l测定)。把装有未遭破坏土样的环刀称重后，使其有孔底一端(内垫滤纸)朝下，放在盛水的平底磁盘中或充满水的砂层上，使盘内水面与环刀上缘保持一样高，切勿使水面淹没环刀，以免影响空气自土壤孔隙排出，使水不能充满孔隙。经过一定时间后(砂土4一8小时，粘土8一12小时)迅速取出，用盒盖托住称重。然后再放入盘中，继续使水充满孔隙，直至前后两次重量无显著差异为止。为了计算环刀中土体的干土重，必须在同一土层上，另取土样，用称重烘干法测其湿度。用下式计算饱和持水量(占干土重的百分数): 环刀中上样吸水饱和*、、、。_后的含水量吧刊’寸小里一环万币王释的不干甭入川U.式中上样干土重(克)=环刀中的湿土重(克)xl()0100十上样湿度的百分数 此外，通过下式也可计算饱和持水量(占干土重的百分数):饱和持水量二总孔隙度 容重火10()%式中总孔隙度二1一宣重比重(林家栋)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条