查询词典 vegetation

Although forest canopy layer could prevent splash erosion effectively, clay was taken away by overland flow and run off easily, the erosion amount became less after removing the forest canopy and surface soil, while the splash erosion still produced in the surface layer; the splash function weakened after having water current, the starting particles were less than bareland, so removing the surface disturbed soil made the erosion amount and clay less, silty sand more than bareland, but unsteady, the wear and tear energy used by raindrop splash and current function for overcoming sediments separating and starting were comparatively large, sediments were very difficult to be started and transported, it explained that forest root systems could increase anti-erosion capability of forest vegetation, make rainfall-current system splash and export finer particles than bareland.

虽然林冠层能有效防止溅蚀的发生，但坡面流还是能带走粘粒部分，粘粒还是容易流失。去除林冠和表层土后，侵蚀量变得更少，但表层还是会被溅蚀，有水流后，溅蚀作用减弱，颗粒起动的比裸地的少，所以，去除表层扰动土后，侵蚀量更少，粉沙多，粘粒比裸地更少一些，但不稳定，雨滴击溅和水流作用用于克服泥沙分离起动损耗的能量较大，很难被起动输移，这说明森林植被根系的作用增加了林地植被的抗蚀力，使降雨一水流系统仅能溅起输出比裸地坡面更细小的泥沙颗粒。

Lijiang has glaciers and magic scenery in Glacier Park in the snow mountain scenic spot; luxuriant cypresses and pines and picturesque scenery in Yushan Ping and Maoniu Ping; clean water and gorgeous scenery in Lugu Lake, a provincial development tourist area usually called the " Plateau Pearl "; as well as Laojun Mountain 99 Longtan Scenic Spot distributed with numerous natural lakes in mountains and forests, famous for its thick alpine vegetation; Qiangui Peak with beautiful scenery and unique flavor; Tiger Leaping Gorge famous as the deepest and steepest gorge; the first gulf stone drumlin endowed with magnificant and beautiful scenery; Liming mainly with Danxia landform spectacle; Baoshan Stone Town with important and dangerous landscape and unique flavor; harmonious and natural Lashi Sea National Level Protection Marsh with abundant bilogical resources; elegant and silent Heilongtan Jade Spring Park; and Wanduo camellia said to be the " First Branch on Yunling " and " Global First Tree "… etc.

雪山景区的冰川公园冰川林立、景色奇幻，云杉坪、牦牛坪苍松翠柏、风景如画；丽江还有碧水如镜，澄澈绮丽，素称&高原明珠&的省级开发旅游区泸沽湖；有以丰茂的高山植被闻名，在群山和森林中分布着众多天然湖泊的老君山九十九龙潭风景区和景色秀丽、韵味独特的千龟顶；有世界著名的最深最险的虎跳峡，气势雄浑，风景宜人的长江第一湾石鼓，以丹霞地貌奇观为主的黎明，地势险要、独具风情的宝山石头城等；还有生物资源丰富，一派和谐天然的拉市国家级保护湿地，清雅大气、幽深静谧的黑龙潭玉泉公园，号称被誉为&云岭第一枝&、&环球第一树&的万朵山茶……等等，众多各具特色的景区在丽江共同构成了一幅壮阔而优美的自然画卷。

In fact, this simple scale transformation of space data sometimes exists large error. Based on above view, we adopt the method that combining field data and multi-scale remotely sensed data to measure vegetation fractional coverage.

该模型与目视解译法、目视估测法、网格法和监督分类法等常用的估测植被盖度的方法相比，无论在处理数码相片的效率上，还是在提取植被盖度信息的精度上都有很大的改进。

Famous local products -·ádowntown donkey soup Huaiqing House unique geographical environment, Feng-mao herb vegetation upbringing Yubei Plain donkey, whose body Kin elite, succulent delicacy, nutrient-rich, deeply commendable people.

怀庆府独特的地理环境，丰茂的药草植被养育的豫北平原驴，其体健精锐，肉质细腻、营养丰富、深受国人称道。

Moisture soil absorbs more heat than loose, dry soil covered with more mulch or vegetation.

潮湿的土壤比松散的土壤更能汲取热量，干燥的土壤用更多的护根或植物覆盖。

Moist soil observes absorbs more heat than lose loose , dry soil covered with moach mulch or vegetation.

潮湿的土壤比植被覆盖的干燥松散的土壤吸收更多的热量。

Moist soil absorbs more heat than loose, dry soil covered with mulch or vegetation.

潮湿的土壤比疏松，干旱，覆盖有保护物或草木的土壤更容易吸收热量。

So, this thesis has studied a kind of method of complex protection, called the Ecological Reinforced Wire Retaining Wall, to integrate ecosystem restoration into engineering measure based on the late research results, which not only can satisfy vegetation restoration of slope, but also form and stabilize the structure system full of ecological effects.

由此，本文基于以往研究成果，提出了一种将生态效应融入工程防护的复合型护坡方法——生态型加筋网墙技术，它不仅满足坡面的绿化，更是将工程防护技术与植被恢复理论统一结合，以形成稳固而又富于生态景观效应的防护结构体系。

Mainly reed and willow shrub vegetation, the surrounding area is a dwarf shrub.

主要植被芦苇和柳树灌木，周围地区是矮灌丛。

In addition,temperature was also the key factor controlling the spatial distribution of vegetation types,such as meadow,steppe, shrub and

此外，热量成为大兴安岭东西两麓发育的林缘草甸、草原、灌丛和低湿地等植被类型空间分布的主导因素。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。