碳酸盐结合态

碳酸盐结合态锌是土壤中锌形态间转化的主要参与者。

Bound to carbonates is the main participant of transformation between weak absorption and strong absorption .

土壤中七种形态的稀土元素含量顺序为：残渣态有机物结合态铁锰氧化物结合态碳酸盐结合态可交换态和水溶态。

The amount of the seven forms of the REEs follows the order : residual bound to organic matter bound to Fe - Mn oxides bound to carbonates exchangeable and water-soluble .

根际pH的降低促进了Pb、Ni碳酸盐结合态的溶解、释放。

PH decreasing accelerated the dissolving and release of Pb - , Ni-carbonate bound type .

五种形态中碳酸盐结合态是Cd在各种胁迫水平下的主要存在形态。

Among the five patterns , carbonates fraction was the primary one while Cd was under diversified stresses .

Cd的主要形态是可交换态及碳酸盐结合态。（5）巢湖西部湖区污染最严重。

The main form of Cd is exchangeable and carbonate fraction . ( 5 ) The west area of Chao Lake is most seriously polluted .

在缺Zn褐土上，施入的Zn迅速转化为各种形态，其中碳酸盐结合态是有效Zn的主要仓库。

In drab soil deficient in Zn , the applied Zn transforms rapidly into its various forms , among which , the carbonate-bound one is the major storage of available Zn .

除残渣态外，Pb、Zn在土壤、炼锌废渣中主要呈铁锰氧化物结合态，沉积物中则为碳酸盐结合态。

Except for residue fractions , Fe and Mn oxide bound fractions for Pb , Zn overwhelm in soils and in slags , while carbonate bound fractions dominate in river sediments .

相关分析表明：锑矿区构树的POD、SOD、CAT酶活性与土壤中锑元素可交换态和碳酸盐结合态有显著相关性，与锑有机结合态呈负相关，与残渣态无相关性。

Correlation analysis showed that : the POD , SOD , CAT and MDA activity was significantly correlated with the exchangeable and carbonate form of Sb , no correlation with the residual .

土壤Pb、Zn形态分析结果显示，与非根际土壤相比，多数作物根际可交换态、碳酸盐结合态、有机质结合态Pb比例降低，而铁锰氧化物结合态、残渣态Pb则显著增加；

Comparing with control soil , exchangeable , bound to carbonate compounds and bound to organic matter Pb decreased slightly , but bound to Fe-Mn oxides and residual Pb increased significantly in rhizospheric soil .

在三种元素中，Zn的化学形态变化趋势最为一致，表现为残留态>碳酸盐结合态>铁锰结合态>有机态>交换态；

Of the three elements , the Zn chemomorphosis change tendency was the most consistent , being that residual form > carbonate combined form > Fe-Mn oxide combined form > organic form > exchangeable form .

所有的形态转化中，pH对交换态和碳酸盐结合态影响最大，且这两者之间的转化对生物有效量起决定性作用。

In all the transformations of Cd chemical forms , the influences of pH on the exchange state and carbonate binding state are greatest , and transformation between the two states plays a decisive role in the bioavailable dose .

运用连续提取的方法，对几类污染物质进行Cd，Zn，Cu和Mn等元素的可交换态、吸附态、有机态、碳酸盐结合态和残余态测定。

Successive extraction method was adopted to determine exchangeable form , adsorbed form , organic form , carbonated form and residual form of Cd , Zn , Cu , Mn in several polluted soils and sediments .

污染区与对照区土壤中Pb的交换态、碳酸盐结合态和Fe-Mn氧化物结合态均无显著差异。

Moreover , no significant differences existed between the contaminated and the non-contaminated soils for the exchangeable fraction , the carbonate fraction and the iron-manganese oxides fraction of Pb .

结果表明，Cu各形态的植物可利用性的顺序为水溶交换态、有机结合态>碳酸盐结合态>铁锰氧化物结合态>残渣态；

The results showed that the sequence of availability of Cu forms to plant is soluble plus exchangeable Cu and organic matter bound Cu > Cu bound to carbonate > Fe / Mn oxide bound Cu > residual Cu .

外源Cd加入后，随有机酸浓度增加，柠檬酸使可交换态Cd比例显著提高，在10mmol/kg时基本达到最大值，而苹果酸能更有效提高碳酸盐结合态Cd含量。

After external Cd entered , with higher concentration of organic acids added , citric acid can make percentage content of exchangeable Cd significantly increased , and basically reached the peak under the concentration of 10mmol / kg .

施用赤泥能提高土壤pH，降低土壤交换态Cd含量，将交换态Cd转变为铁锰结合态和碳酸盐结合态，减少水稻糙米中Cd的累积量。

The application of red mud can increased soil pH , reduce the content of soil exchangeable Cd , transform exchangeable Cd into iron manganese bound and carbonate bound , and reduce the cumulative amount of Cd in brown rice .

添加赤泥后土壤中交换态Cd含量减少；碳酸盐结合态Cd含量、铁锰氧化物结合态Cd含量和残渣态Cd含量增加；有机结合态Cd含量变化不大。

With the application of red mud , the contents of exchangeable Cadmium in soil has decreased , while the contents of carbonate-bound and Fe-Mn oxide-bound and residual Cadmium in the soil increased , the contents of organic matter-bound Cadmium in soil did not change significantly .

结果表明，K和Rb等元素，主要赋存于残留态中，而Ca、Sr等元素主要赋存于碳酸盐结合态和残留态中。

The organic matter bounded ; and ( 6 ) residual forms of elements . Results show that elements , such as K and Rb , are predominantly associated with the residual , whereas Ca and Sr are mainly in carbonate bounded and residual forms .

北碚区城市土壤表层重金属Pb的不同形态的含量为残渣态碳酸盐结合态铁锰氧化物结合态可交换态有机结合态。

The contact of genesis in different soil layers is disrupted and even not existing . ( 4 ) The sequence of different forms of Pb in urban soil surface of Beibei was bount to residual carbonate fraction Fe-Mn oxide bound exchangeable fraction bound to organic matter .

而活性较强的可交换态和碳酸盐结合态所占比例较低。

But the proportion of exchange faction and carbonate is low .

锑矿区构树各酶活性与镉元素的可交换态，碳酸盐结合态，铁锰氧化态与有机结合态呈极显著相关，与残渣态无显著相关性。

There is significantly correlated with the exchangeable , carbonate , Fe-Mn oxide and organic form of Cd .

大多数重金属元素在碳酸化飞灰中的残渣态比例较原灰中略有提高，交换态比例明显降低，碳酸盐结合态比例明显提高。

After carbonation , the residual fraction and carbonate fraction of most of heavy metals increase , and the exchangeable fraction significantly decrease .

污泥中铜主要以有机质结合态存在；镍主要是碳酸盐结合态和铁锰氧化物结合态。

Cu in the sludge is mainly existing in organic matter bound , while Ni is mainly carbonates bound and Fe / Mn oxides bound .

成都市表生土壤中的腐殖质与可交换态镉、有机结合态镉、残留态镉有一定相关性，与碳酸盐结合态镉、铁锰氧化物结合态镉相关性不显著；

Humus has a certain correlation with exchangeable Cd , organic-bound Cd and residual Cd , and has no obvious correlation with other chemical speciations .

七种重金属元素的铁锰氧化物结合态的潜在危害性都是最大的，碳酸盐结合态的潜在危害性都是最小的。

The potential hazardous of seven kinds of heavy metal element in Fe-Mn oxide combined form are largest , the potential hazardous of carbonate combined form is least .

逐级化学提取法分析表明：煤中大部分溴以水溶态、离子交换态、碳酸盐结合态、铁锰结合态和有机态存在。

The experimental results of sequential chemical extraction show that the bromine in coal mainly occurs in the water-soluble , ion exchangeable , carbonate , Fe-Mn oxides and organic fraction .

结果表明，结壳中稀土元素在不同结合态中的富集顺序为：残渣态>有机结合态>锰氧化物结合态>碳酸盐结合态>吸附态。

The results show that the enrichment of rare earth elements in different phases conforms to the following order : residual phases > organic phases > manganese oxide phases > carbonate phases > adsorbate .

从潜在有效态（可交换态、碳酸盐结合态、铁锰氧化结合态、有机结合态）重金属占总量的比例来看，重金属的活性大小为Cd>Zn>Ni>Cu>Cr>Pb。

From the content rate of potential effective form ( Fe-Mn-Ox , O - , C - and Ex - ) with total heavy metal , heavy metal activity order was Cd > Zn > Ni > Cu > Cr > Pb .

各种重金属在土样中主要以残留态、硫化物和有机物结合态、或是Fe/Mn氧化物结合态存在，可交换态与碳酸盐结合态的含量极少。

A large proportion of heavy metals in the soil samples mainly existed in the form of residual fraction , combination of sulfides and organic substance , or the combination of Fe / Mn oxide fractions , less in the exchangeable form and combination of carbonate .

通过对重金属形态与土壤理化性质的相关性分析表明：Ni的碳酸盐态与有机结合态、Cu的铁锰氧化态、Cd的碳酸盐结合态与土壤水分均呈显著正相关。

The correlation analysis of heavy metals morphology and soil physical and chemical properties shows that : the carbonate-bound state and organic-bound state of Ni , Fe-Mn oxidation state of Cu , organic-bound state of Cd showed a significantly positive correlation with soil moisture .