a国产,中文字幕久久波多野结衣AV,欧美粗大猛烈老熟妇,女人av天堂

河北省棗強(qiáng)縣綠色農(nóng)產(chǎn)品土地環(huán)境評(píng)價(jià)

發(fā)布時(shí)間:2018-12-10 19:59
【摘要】:[目的]通過(guò)開(kāi)展綠色農(nóng)產(chǎn)品土地環(huán)境評(píng)價(jià),圈定適宜發(fā)展綠色農(nóng)產(chǎn)品的土地范圍,為農(nóng)業(yè)部門制定相關(guān)決策提供科學(xué)依據(jù),實(shí)現(xiàn)農(nóng)業(yè)的可持續(xù)發(fā)展;為進(jìn)一步申請(qǐng)綠色產(chǎn)地認(rèn)證和局部區(qū)域的土、水環(huán)境污染治理提供地球化學(xué)依據(jù)。[方法]文章基于1:50 000土壤和灌溉水地球化學(xué)調(diào)查結(jié)果,依據(jù)《綠色食品產(chǎn)地環(huán)境技術(shù)條件》(NY/T 391-2000)評(píng)價(jià)標(biāo)準(zhǔn),對(duì)河北省棗強(qiáng)縣開(kāi)展綠色農(nóng)產(chǎn)品土地環(huán)境評(píng)價(jià)。[結(jié)果]棗強(qiáng)縣絕大部分地區(qū)單項(xiàng)污染指數(shù)小于1,調(diào)查區(qū)99.66%的面積符合土壤綠色產(chǎn)地要求,僅個(gè)別樣點(diǎn)表現(xiàn)出超標(biāo)現(xiàn)象,超標(biāo)指標(biāo)主要為汞和鎘;78.21%的面積符合灌溉水綠色產(chǎn)地要求,超標(biāo)指標(biāo)主要為氟化物和pH。[結(jié)論]棗強(qiáng)縣具備開(kāi)發(fā)綠色農(nóng)產(chǎn)品的土地環(huán)境潛力,以此為依托,提高農(nóng)產(chǎn)品附加值,增加農(nóng)民收入。
[Abstract]:[objective] to define the land range suitable for the development of green agricultural products by carrying out the land environment evaluation of green agricultural products, to provide scientific basis for making relevant decisions in the agricultural sector, and to realize the sustainable development of agriculture. It provides geochemical basis for the application of green origin certification and local soil pollution control. [methods] based on the geochemical investigation results of 1:50 soil and irrigation water and according to NY/T 391-2000, the green agricultural land environment evaluation was carried out in Zaoqiang County, Hebei Province. [results] in most areas of Zaoqiang County, the single pollution index was less than 1. 99.66% of the area in the investigation area was in line with the requirement of green producing area of soil. Only one other spot showed the phenomenon of exceeding the standard, and the main indicators of exceeding the standard were mercury and cadmium. 78.21% of the area met the requirement of green producing area of irrigation water, and the main indicators of exceeding the standard were fluoride and pH.. [conclusion] Zaoqiang County has the land environmental potential to develop green agricultural products, which can improve the added value of agricultural products and increase farmers' income.
【作者單位】: 中國(guó)科學(xué)院遺傳與發(fā)育生物學(xué)研究所農(nóng)業(yè)資源研究中心;中國(guó)科學(xué)院大學(xué);河北省地質(zhì)調(diào)查院;河北省土地服務(wù)中心;河北工程技術(shù)學(xué)院;
【基金】:河北省地質(zhì)礦產(chǎn)勘查開(kāi)發(fā)局扶貧項(xiàng)目“棗強(qiáng)縣農(nóng)業(yè)生態(tài)地質(zhì)環(huán)境調(diào)查與評(píng)價(jià)”(冀地地審[2013]3號(hào))
【分類號(hào)】:X825


本文編號(hào):2371120

資料下載
論文發(fā)表

本文鏈接:http://www.wukwdryxk.cn/shengtaihuanjingbaohulunwen/2371120.html


Copyright(c)文論論文網(wǎng)All Rights Reserved | 網(wǎng)站地圖 |

版權(quán)申明:資料由用戶333b9***提供,本站僅收錄摘要或目錄,作者需要?jiǎng)h除請(qǐng)E-mail郵箱bigeng88@qq.com
特大欧美黑人巨大xxoo| 亚洲熟妇中文字幕五十中出| av一二三| 国产精品日日摸天天碰| 黄色av小说| 97免费| 国产午夜精品免费一区二区三区| 美女扒开尿口让男人桶| 在线视频国产99| 九九久久精品无码专区| 天天狠天天透天干天天怕| yy1111111少妇影院光屁股| 麻豆国产尤物av尤物在线观看| 国产精品2021年在线观看| 成全视频观看免费高清第6季| 精品国产乱码久久久久久浪潮| 无人区在线影院免费高清| av中文字幕潮喷人妻系列| 三级三级三级a三级三级| 爱爱一区| 与岳乱lun第2部| 国产一级做a爰片久久| 97碰碰视频| 操丝袜人妻| 37p粉嫩大胆色噜噜噜| 国模吧一区二区三区| 中文字幕少妇人妻| 啪啪啪网站免费| 少妇人妻的欲望| 菲菲影院| 国产人成无码视频在线观看| 伊人久久大香线焦AV色| 日日摸夜夜添夜夜添AV| 丝瓜草莓视频app| 久久久亚洲一区二区三区 | 婷婷综合缴情亚洲狠狠小说| 国产精品永久免费| 尖峰时刻2| 大黄片| 白嫩丰满少妇videoshd| 人妻一区|