The Influence of Cultivation System on Distribution Profile Of 137cs and Erosion / Deposition Rate

Nita Suhartini(1*)

(1) Pusat Aplikasi Tehnologi Isotop dan Radiasi - BATAN Jl. Cinere Pasar Jumat Kotak Pos 7002 JKSKL, Jakarta 12070, Indonesia
(*) Corresponding Author

Abstract

137Cs radiogenic content in the soil can be used to estimate the rate of erosion and deposition in an area occurring since 1950’s, by comparing the content of the 137Cs in observed site with those in a stable reference site. This experiment aimed to investigate the influence of cultivation type on distribution profile of 137Cs and distribution of erosion and deposition rate in cultivated area. A study site was small cultivated area with slope steepness < 10o and length 2 km located in Bojong – Ciawi. For this purpose, the top of a slope was chosen for reference site and three plot sites were selected namely Land Use I that using simple cultivation, Land Use II that using simple cultivation with ridge and furrow, and Land Use III using machine cultivation. The results showed that cultivation could make a movement of 137Cs to the deeper layer and ridges and furrows cultivation system could minimized an erosion process. The net erosion and deposition for land Use I, II and III were -25 t/ha/yr , 24 t/ha/yr and -58 t/ha/yr, respectively.

Full Text:

PDF

References

Dibyosaputro, S. 2005. “Muatan Suspensi Total dan Laju Sedimentasi Sungai Kayan di

Kabupaten Bulungan, Kalimantan Timur”. Forum Geografi, Vol. 19, No. 2, Desember

Hlm 103-114.

Elliott,G.L., Loughran., R.J., and Campbell,B.L., 1992, Appl.Radiat.Isot. A41, p.1 – 1

He, Q., and Walling,D.E., 2003, Hydrol. Process, 17, p 901 – 916

Loughran, R.J., Elliott, G.L., and Campbell, B.L., 1993, Appl. Geogr.,13,p.109 – 188.

Porto,P., Walling,D.E., and Ferro,V., 2001, J of Hydr., 248, p.93 – 108.

Ritchie,J.C., and McHenry, J.R., 1990, J.Environ. Qual., 19, p.215 – 233

Suhartini,N., Country Report of RAS/5/039, Mid-Term Meeting of IAEA, Jakarta, 2003

Suhartini, N., Laporan Tehnis, BATAN, 2004.

Wahyu Santosa, Langgeng. 2005. “Identifikasi Kerusakan Lahan dan Cara Penanganannya

di Zona Perbukitan Baturagung Kabupaten Gunung Kidul”. Forum Geografi, Vol. 19,

No. 1, Juli 2005. Hlm 30-54.

Walling, D.E., 1998, IAEA – TECDOC, 1028, p.39 – 62

Walling,D.E., Collins,A.L., and Sichingabula,H.M., 2003, Geomorphology, 52,p.193 -213

Wischmeier, W.H., and Smith,D.D., 1978, Predicting rainfall losses: A guide to conservation

planning, Agri.Handbook, vol.537, USDA, Washington, DC, p.58

Zapata, F., 2002, Handbook or The Assessment of Soil Erosion and sedimentationUsing

Environmental radionuclides, Kluwer Academic Publishers, Netherlands, p.1–16.

Article Metrics

Abstract view(s): 284 time(s)
PDF: 276 time(s)

Refbacks

  • There are currently no refbacks.