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测土壤水分的方法,土壤含水量测定仪

作者:admin 来源:未知 时间:2021-03-04 点击:次

[文章前言]:  土壤水分如何测量?在市场上有多种测量方法,如烘干法、电阻法、中子散射法、TDR法等,但在现代农业生产中,测量土壤水分含量多用仪器法(土壤含水量测定仪),土壤含水量测定

  TURANGSHUIFENRUHECELIANG?ZAISHICHANGSHANGYOUDUOZHONGCELIANGFANGFA,RUHONGGANFA、DIANZUFA、ZHONGZISANSHEFA、TDRFADENG,DANZAIXIANDAINONGYESHENGCHANZHONG,CELIANGTURANGSHUIFENHANLIANGDUOYONGYIQIFA(TURANGHANSHUILIANGCEDINGYI),TURANGHANSHUILIANGCEDINGYISHIYIKUANZHUANMENYONGLAICEDINGTURANGHANSHUILIANGDEYIQI,JULEJIE,MUQIANGAIYIQIGUANGFANYINGYONGYUTURANGSHANGQINGJIANCE、JIESHUIGUANGAI、JINGXINONGYE、LINYE、DIZHIKANTAN、ZHIWUPEIYUDENGLINGYU。XIAMIANWOMENDUIYISHANGSUOTIDAODEJIZHONGTURANGSHUIFENCELIANGFANGFAZUOYIJIANDANDEJIESHAO。

  一、烘干法(失重法)

  HONGGANFASHICELIANGTURANGSHUIFENDESHIGENGJIAPUBIANDEFANGFA,YESHIBIAOZHUNFANGFA,TAYONGLAICEDINGTURANGZHILIANGHANSHUILIANG。TONGCHANGJIANGCONGYEWAIQULAIDEYUANZHUANGTUZHUZHONGCHENGCHUYIZHIZHONGLIANGDECHAOSHITURANGYANGPIN,FANGZAIWENDU105℃DEHONGXIANGZHONGHONGGANHOUZAICHENGZHONG。JIAREERSHIQUDESHUIFENDAIBIAOCHAOSHIYANGPINZHONGDETURANGSHUIFEN。

  二、电阻法

  DIANZUFASHILIYONGMOUXIEDUOKONGXINGWUZHIRUSHIGAO、NILONG、BOLIXIANWEIDENGDEDIANZUHETAMENDEHANSHUILIANGYOUGUANXIZHEIYISHISHIERCAIYONGDEYIZHONGFANGFA。DANGZHEIXIEQIANYOUDIANJIDEKUAIZHUANGZUJIANFANGZHIZAICHAOSHIDETURANGZHONGSHI,TAMENXISHOUTURANGSHUIFENYIZHIDADAOPINGHENGZHUANGTAI。KUAIZHUANGZUJIANDEDIANZUYOUTAMENDEHANSHUILIANGJUEDINGDE,BINGYICIYOUFUJINTURANGSHUIFENZHANGLIHUODEXILISUOJUEDING。DIANZUDUSHUHETURANGSHUIFENBAIFENSHUZHIJIANDEGUANXIKEYIYONGBIAODINGFANGFALAIQUEDING。ZHEIXIEKUAIZHUANGZUJIANZAIYIDUANSHIJIANNEIYONGLAICEDINGTIANJIANXUANDINGWEIZHIDEHANSHUILIANG。ZAI1~15DAQIYAXILIFANWEINEITAMENJICHUXIANGDANGZHUNQUEDESHUIFENDUSHU。

  三、中子散射法

  ZHONGZISANSHEFAYESHICEDINGYEWAITURANGSHUIFENDEYIZHONGFANGFA。ZHONGZISHUIFENJIDE.XINGSHIJIYUZHEIYIYUANZE,JIQINGZAIJIJUJIANDIKUAIZHONGZIDESUDUBINGBATAMENSANSHEKAIDENENGLIFANGMIANSHIBIJIAOJINGMIDE。ZHONGZISHUIFENJISUIRANANGGUI,DANSHITAJUYOUDUOFANGMIANDEYOUDIAN,BINGQIENENGXIANGDANGZHUNQUEDICEDINGKUANGZHITURANGZHONGZUOWEIHUAHEQINGDEZHUYAOLAIYUANDESHUIDEHANLIANG。ZHEIYIFANGFADUIYUYOUJIZHITURANGYOUMINGXIANDEXIANZHI,YINWEIYOUJIZHIZHONGXUDUOHUAHEQINGSHIYISHUIYIWAIDEQITAXINGSHICUNZAI。CIWAITABUSHIYICEDINGBIAOCENG0-15LIMIDETURANGSHUIHANLIANG。

  四、TDR法

  TDRFASHI20SHIJI80NIANDAICHUFAZHANQILAIDEYIZHONGCEDINGFANGFATASHOUXIANFAXIANKEYONGYUTURANGRONGJIHANSHUILIANGDECEDING,JIERYOUFAXIANQIKEYONGYUTURANGHANYANLIANGDECEDING。TDRXITONGLEISIYIGEDUANBOLEIDAXITONG,KEYIZHIJIE、KUAISU、FANGBIAN、SHIDIJIANCETURANGSHUIYANZHUANGKUANG,YUQITACEDINGFANGFAXIANGBI,TDRJUYOUJIAOQIANGDEDULIXING,CEDINGJIEGUOJIHUYUTURANGLEIXING、MIDU、WENDUDENGWUGUAN。TDRLINGYIGETEDIANSHIKETONGSHIJIANCETURANGSHUIYANHANLIANG,ZAITONGYIDIDIANTONGSHICEDING,CEDINGJIEGUOJUYOUYIZHIXING。ERERZHECEDINGSHIWANQUANDULIDE,HUBUYINGXIANG。

  五、仪器法(土壤含水量测定仪)

  PMS710XINGTURANGHANSHUILIANGCEDINGYINENGGOUZHUNQUECELIANGTURANGSHUIFENHANLIANG,CELIANGJINGDUGAO,CUNCHURONGLIANGDA,TIJIXIAOQIAO,BIANYUXIEDAI。KEYONGYUNONGTIAN、SHUILI、SENLIN、CAOPING、GONGLU、TIELUYANGHUDENGDEZHANGQIJIANCE,KELIANXUJIANCETURANGDESHUIFENWENDU,XINGNENGWENDING,KEKAOXINGGAO。MUQIANZAISHICHANGSHANGSHOUDAOGUANGDAYONGHUDEQINGLAIYUHAOPING。

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