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Table 4 Desertification evaluation system based on this study Indicators Severe High Moderate Low Plant canopy [%] <10 10-30 30-60 >60 0.25-0.05mm sand [%] <13.75 13.75-25.82 25.82-43.93 >43.93 Content of OM [g.kg-1] <1.28 1.28-2.83 2.83-5.85 >5.85 The most direct representation of desertification is the variation of landform and landscape, such as dramatic increase in the number of dust storms, increase in deforested and denuded land, and decrease of vegetation cover, but its essence is the transformation of soil physical composition, physical and chemical properties and production quality, which differ with the extent of desertification, such as deterioration of the physical properties of soil components which include declining of soil structure and soil water status, losses in soil fertility and organic matter, and decrease of soil cation exchange capacity and biological properties, which finally result in depletion of the land productivity.
Bao, Soil and agricultural chemistry analysis, China Agricultural Press, Beijing, 2000

The pore distribution of exfoliated graphite becomes more uniform, and more microcellular structures form in it, and its layers become thinner, as shown in Fig. 1(d), the interlayers are fully opened. 4 Conclusions Exfoliated graphite with large EV has been prepared by two-step intercalation, in which the mixture of HNO3 and H3PO4 and that of HNO3 and CH3COOH were employed as intercalating agent, and KMnO4 was used as oxidant.
Chinese Journal of Inorganic Chemistry, 1997, 13(2): 231-233.

Spatial-Temporal Correlativity of Hydrological monitoring Information In the hydrological monitoring area where all kinds of sensor nodes are centrally arranged, the monitored variables (such as rainfall, water depth, flow velocity, PH value, and dissolved oxygen) are usually associated in some ways and their distribution is "structured".
Industrial & Engineering Chemistry Research, vol.32, no.12, pp.3020-3028, 1993

The cross-linked structure offers the copolymer good thermal stability.
Kim: Chemistry of materials Vol. 22 (2009), p. 587-603 [4] P.V.

Since the IGT is predominantly affected by the structure and physical properties of the ground, air temperature variations, and solar radiation [3, 4], varying according to depth of test point and test time, it appears different characteristics in different depth.
Physics and Chemistry of the Earth, 2011; 36: 28-36

Montmorillonite (MMT) is a typical kind of layered silicate clay mineral[10], and Indium (In) is a kind of low-melting-point metal with square crystal structure.
Ag Nanoparticles: Preparation in Functional Ionic Liquid and Friction Properties［J］.Chinese Journal of Inorganic Chemistry,2006,22(1):65-68.

References [1] J.Davidovits: Geopolymer: chemistry and application.
[23] P.Chindaprasirt, U.Rattanasak, S.Taebuanhuad: Materials and Structures Vol.46(2013), p. 375-381

Fansuri4,g 1Civil Engineering Department, Institute of Technology Sepuluh Nopember, Indonesia 2Civil Engineering Department, Universiti Teknologi PETRONAS, Malaysia 3Department of Physics, UNM, Makassar 90223, Indonesia 4Department of Chemistry, Institut Teknologi Sepuluh Nopember, Sukolilo, Surabaya, 60111, Indonesia abayuaji@ce.its.ac.id, bfadhilnuruddin@petronas.com.my, cshahanema_f@yahoo.com.my, djanuarti_je@yahoo.com, etriwulan_marwan @yahoo.com, fjzubayir@yahoo.com, gh.fansuri@chem.its.ac.id Keyword: Geopolymer, Microwave Incinerated Rice Husk Ash (MIRHA), Fly Ash, Curing Regime, Mechanical Properties Abstract.
Also, it has been reported that many concrete structures, especially those built in corrosive environments, start to deteriorate after 20 to 30 years, even though they have been calculated for more than 50 years of service life [3].

It is observed that the addition of oxides of the rare earth elements (CeO2) increases the thermal stability of the porous structure [5].
The chromate will stabilize the melt chemistry, and as a result prevent the dissolution of the protective oxide scale [21].

Since, the microstructural features (principle responsible for SCC process) of the 7xxx series alloys are very complex and the alterations of microstructural features (governing factor of the SCC mechanisms) depend on many variables such as alloy chemistry, the solute content, Zn/Mg and Cu/Mg ratio, artificial ageing schedules, retrogression temperature and time etc., the research on this field is still very active and vibrant.
Sankaran, Structure−properties correlation in Al 7055 high strength aluminium alloys, Mater.