KANDUNGAN KARBON DAN BAHAN ORGANIK

KANDUNGAN KARBON DAN BAHAN ORGANIK DALAM TANAH
PADA TEGAKAN Ki putri (Podocarpus neriifolius),
JATI (Tectona grandis), Legaran (Alstonia spectabillis R.Br) DI HUTAN
PENDIDIKAN WANAGAMA I
Oleh :
Mohamad Rizal Sanjani
(11/321359/DKT/1536)
INTISARI
Hutan pendidikan Wanagama I sebagai sarana pembelajaran maka perlu
dilakukan penelitian tentang unsur hara yang tersedia di dalam tanah hutan
pendidikan Wanagama I. Tanaman sangat membutuhkan unsur-unsur hara
esensial. Tidak semua jenis tanaman di Wanagama I mampu tumbuh cepat dan
subur, hal ini dikarenakan adanya pengaruh kesuburan tanah serta kesesuaian
tempat tumbuh jenis tanaman. Salah satu ciri tanah yang subur mengandung
banyak bahan organik. Karbon merupakan penyusun bahan organik terbesar
sehingga ketersediaan unsur karbon sangat dipengaruhi oleh banyaknya bahan
organik. Tersedianya bahan organik dalam tanah berarti pula tersedianya sumber
karbon dan energi bagi mikroorganisme tanah yang perannya sangat dominan
dalam proses perombakan bahan organik. Sehingga perlu adanya penelitian
tentang kandungan tanah Wanagama I untuk mengetahui kandungan bahan
organik dan karbon tanah.
Sampel yang digunakan berasal dari 3 jenis tegakan di hutan pendidikan
Wanagama I yang tanahnya belum diolah. Vegetasi yang digunakan ialah Jenis
Legaran, Jati, dan Ki putri dan kedalaman tanah (0-10, 10-20, 20-30, 30-50).
Indikator yang digunakan adalah kandungan bahan organik dan karbon di dalam
tanah Hutan pendidikan Wanagama I. Dalam penetapan kadar bahan organik dan
unsur karbon digunakan metode Walkey & Black (method volumetris), nilainya
77% kebenaranya, dihitung dinyatakan dalam method Denntedt (metode
pembakaran) yang nilainya 100% kebenaran. Analisisnya disebut analisa
kuantitatif volumetric axisimetris.
Hasil penelitian menunjukkan bahwa kandungan unsur karbon di lahan
Wanagama I yang belum diolah memiliki kriteria tinggi pada kedalaman 0-10 dan
10-20, sedang pada kedalaman 20-30, rendah pada kedalaman 30-50. Legaran :
rendah, Jati (petak 7) : sangat tinggi, Jati (petak 6) : tinggi, Podocarpus : tinggi.
Kata kunci : Wanagama I, PUP, Karbon, Bahan Organik.
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ORGANIC CARBON CONTENT AND MATERIALS IN SOIL AT
STANDS Ki putri (Podocarpus neriifolius),
TEAK (Tectona grandis), Legaran (Alstonia spectabillis R.Br) Wanagama
EDUCATION IN THE FOREST I
by :
Mohamad Rizal Sanjani
(11/321359/DKT/1536)
ABSTRACT
Forest education as a means of learning Wanagama I then need to do
research on available nutrients in forest soils Wanagama I. Plants require essential
nutrients. Not all types of plants in Wanagama I was able to grow fast and lush,
this is due to the influence of soil fertility as well as the suitability of the type of
crop grown. One characteristic of fertile soil contains a lot of organic matter.
Carbon is a constituent of most organic material so that the availability of carbon
is strongly influenced by the amount of organic matter. The availability of organic
matter in the soil also means the availability of carbon and energy source for soil
microorganisms which are very dominant role in the reform process of organic
materials. So the need for research on the content of soil Wanagama I to
determine
the
content
of
organic
matter
and
soil
carbon.
Samples were taken from 3 kinds of stands in the forest I Wanagama
education whose land has not been processed. Vegetation type used is Legaran,
Teak, and Ki daughter and soil depth (0-10, 10-20, 20-30, 30-50). The indicator
used is the carbon content of organic matter in the soil and forest education
Wanagama I. In the assay of organic matter and carbon elements used method of
Walkey & Black (volumetric method), 77% were correct value, calculated
expressed in Denntedt method (combustion method) which value is 100% truth.
The analysis
called
quantitative volumetric analysis
axisimetris.
The results showed that the content of carbon in the land element
unprocessed Wanagama I have high criteria at depths of 0-10 and 10-20, was at a
depth of 20-30, 30-50 low on depth. Legaran: low, Teak (plot 7): very high, Teak
(plot 6): high,Podocarpus : high.
Keywords: Wanagama I, PUP, Carbon, Organic Materials.
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