本文選題：沙石質(zhì)建筑垃圾 + 覆蓋方式��； 參考：《中國沙漠》2016年05期

【摘要】：為了解沙石質(zhì)建筑垃圾不同覆蓋方式防風(fēng)固沙效益,在野外對(duì)不同覆蓋方式的風(fēng)蝕風(fēng)積量、風(fēng)沙流特征、土壤水分、植被生長狀況進(jìn)行了觀測(cè)研究。結(jié)果表明:(1)不同覆蓋方式年風(fēng)蝕量較流沙減少了91%以上,其中平鋪覆蓋方式固沙效果好于帶狀和方格覆蓋方式。平鋪覆蓋方式和流沙風(fēng)沙流結(jié)構(gòu)呈冪、指數(shù)函數(shù)分布,帶狀、方格覆蓋方式呈多項(xiàng)式函數(shù)分布;(2)不同覆蓋方式較流沙顯著提高了土壤容積含水率(P0.05),平鋪方式保水效果好于方格和帶狀覆蓋方式。覆蓋度30%平鋪、1.5m×1.5m方格和寬1.5m帶狀土壤各層平均容積含水率比流沙分別提高了3.1%、2.8%和1.5%;(3)不同的覆蓋方式較流沙顯著增加了植被蓋度(P0.05),其中平鋪方式群落多樣性指數(shù)最高。覆蓋度30%平鋪植被蓋度較流沙提高了5%。1.5m×1.5m方格覆蓋方式植被群落多樣性指數(shù)最低,植被蓋度最高,較流沙提高了14%。
[Abstract]:In order to understand the sand stone construction waste mulching windbreak efficiency, in the field of wind erosion on different covering methods in volume, characteristics, sand soil moisture, vegetation growth status were observed. The results showed that: (1) different methods of wind erosion amount of sand decreased by more than 91%, the tile covering sand better than the strip and grid coverage. Tile coverage and sand sand flow structure in power, exponential distribution, lorate, grid coverage is a polynomial function distribution; (2) the different covering methods than sand significantly improves the soil volumetric water content (P0.05), tile water retention effect is better than the square and strip cover. Cover 30% tile, 1.5m * 1.5m layers and 1.5m wide strip grid average soil volumetric water content ratio of sand were increased by 3.1%, 2.8% and 1.5%; (3) the different cover is quicksand increased significantly The vegetation coverage (P0.05) was the highest in the vegetation coverage. The community diversity index was the highest. The coverage was 30%. The vegetation coverage was higher than that of the quicksand. The vegetation coverage index increased by 5%.1.5m * 1.5m. The vegetation diversity index was the lowest, and the vegetation coverage was the highest, which increased 14%. compared with the quicksand.

【作者單位】： 甘肅省治沙研究所甘肅民勤荒漠草地生態(tài)系統(tǒng)國家野外科學(xué)觀測(cè)研究站/甘肅省荒漠化與風(fēng)沙災(zāi)害防治國家重點(diǎn)實(shí)驗(yàn)室(培育基地);
【基金】：國家公益性行業(yè)(林業(yè))科研專項(xiàng)計(jì)劃項(xiàng)目(201404306) 甘肅省青年科技基金計(jì)劃項(xiàng)目(1308RJYA067) 甘肅省杰出青年基金計(jì)劃項(xiàng)目(145RJDA327) 甘肅省技術(shù)研究與開發(fā)專項(xiàng)計(jì)劃項(xiàng)目(1207TCYA047)
【分類號(hào)】：X799.1;S288;P425.62
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本文編號(hào)：1750006