Sand'.'' protection and control, and research and apply optimized plantation of indeciduous forest and grass, and selection and breeding of indeciduous plant for ''.

治理'又粗又黑又长欧美视频。''模式研究；常綠林草優(yōu)化種植国产A级无码大黄片、防沙治沙抗旱常綠植物的選育及裝備技術(shù)研究與應(yīng)用

We shall emphatically study the layout and planning and control mode of ecological construction of sand protection and control, and research and apply optimized plantation of indeciduous forest and grass, and selection and breeding of indeciduous plant for sand protection and control and drought resistance and its facility and technology.

重點(diǎn)開展防沙治沙生態(tài)建設(shè)布局黄片一男一女免费、規(guī)劃和治理模式研究；常綠林草優(yōu)化種植www6969、防沙治沙抗旱常綠植物的選育及裝備技術(shù)研究與應(yīng)用

We shall emphatically study the layout and planning and control mode of ecological construction of sand protection and control, and research and apply optimized plantation of indeciduous forest and grass, and selection and breeding of indeciduous plant for sand protection and control and drought resistance and its facility and technology.

重點(diǎn)開展防沙治沙生態(tài)建設(shè)布局日韩精品欧美在线、規(guī)劃和治理模式研究；常綠林草優(yōu)化種植国产啪视频免费视频观看视频、防沙治沙抗旱常綠植物的選育及裝備技術(shù)研究與應(yīng)用黄色网站在线看的黄色网站；利馬→干旱城。

Effects of the interplanting of Tephrosia candida on nutrient cycling of eucalyptus plantation ecosystem

桉樹林間種山毛豆對(duì)生態(tài)系統(tǒng)養(yǎng)分循環(huán)的作用

Adaptability of interplanting of eucalyptus plantation with white tephrosia Tephrosia candida DC.

本文研究了桉樹人工林間種山毛豆的適應(yīng)性及其對(duì)林木和土壤的影響午夜丰满少妇拍拍视频。

The authors investigate and study the species diversity of Leucaena leucocephala plantation. discuss its function of ecology and the relation between species diversity and the function of ecosystem.

通過對(duì)金沙江干熱河谷新銀合歡人工林物種多樣性方面的研究中文字幕无码片丝袜美腿，討論了種在退化生態(tài)系統(tǒng)功能恢復(fù)中的作用及物種多樣性與生態(tài)系統(tǒng)功能的關(guān)系。

Leucaena leucocephala plantation, as pioneer species in the initial stage of ecosystem restoration, improves microenvironment of ecosystem, and creates favorable conditions for post species to intrude and colonize.

新銀合歡作為生態(tài)恢復(fù)初期的先鋒樹種明顯改善了生態(tài)系統(tǒng)的微環(huán)境亚洲精品国产aV成拍色，為后繼種的入侵和定居創(chuàng)造了條件免费黄色亚洲视频。

A mixed plantation dominated by Litsea rotundifolia, Cinnamomum burmanni, Litsea glutinosa. Lindera chuni had much higher TOC in deep soil than other plantations, similar to that of nearby secondary natural forest.

以豹皮樟Litsea rotundifolia偷拍网站网址，陰香Cinnamomum burmanni香蕉黄色a级在线特级毛片，潺槁木姜子Litsea glutinosa，陳氏釣樟Lindera chuni等為優(yōu)勢種的混交林伊人无码一区二区，深層土壤含碳量顯著高于其它混交林www.天天操，并與村邊林相似。

Finally, I apply the concepts of dragonfly's biotopes to Kanding ecological park. Various types of lentic and lotic freshwaters surrounded by abundant hydrophytes and multi layers trees are planned. Besides, ecological landscape design with construction proceeds in terms of the following aspects: site gradation and sewage system, circulations and land use, plantation types and materials, and ecological construction methods with waterfront design details.

最后應(yīng)用蜻蜓生物托邦之概念於崁頂生態(tài)公園正品毛片黄片，其生態(tài)地景設(shè)計(jì)在規(guī)劃層次上考慮不同型態(tài)之流水與止水域空間的配置以及復(fù)層密林植被與豐富之水生植物的應(yīng)用亚洲第一区二区在线观看；并且從整地與排水、土地使用區(qū)分與動(dòng)線系統(tǒng)国产精品三区视频、植被類型與植材選定狼狠亚洲综合狼狼久久、生態(tài)工法與親水細(xì)部構(gòu)想進(jìn)行設(shè)計(jì)與營造国产A及黄色视频。

Brazil's second most populous region is the Northeast region, from Maranhao in the north down to Bahia (the most African of Brazilian states). The architecture of cities like Recife and Salvador (Portuguese colonial capital, 1549-1763) shows an earlier age of plantation wealth, but today this is a poor region subject to devastating droughts.

巴西的第二大人口稠密區(qū)位于東北部，從北部的圣路易斯到巴伊亞国产丶欧美丶日本不卡视频，許多城市例如累西腓和薩爾瓦多(葡萄牙殖民時(shí)期的首都三级不卡毛片，1549-1763)的建筑顯示出當(dāng)年殖民時(shí)期的富庶，但是現(xiàn)在這里卻因干旱而變得貧瘠爱爱人人操。