Modelling sylvopastoral systems in dry rangelands Khan T.A., Pathak P.S. Systèmes sylvopastoraux. Pour un environnement, une agriculture et une économie durables Zaragoza : CIHEAM Cahiers Options Méditerranéennes; n. 12 1995

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Systèmes sylvopastoraux. Pour un environnement, une agriculture et une économie durables

Zaragoza : CIHEAM

Cahiers Options Méditerranéennes; n. 12 1995

pages 235-238

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Khan T.A., Pathak P.S. Modellin g sylvopastoral systems in dry ran gelan ds. Systèmes

sylvopastoraux. Pour un environnement, une agriculture et une économie durables . Zaragoza : CIHEAM, 1995. p. 235-238 (Cahiers Options Méditerranéennes; n. 12)

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systems in dry rangelands

and P.S.Pathak

sheet based models based on A. tortilis, A. amara, and H; binata C.

ciliaris, setigrus a legume S. hamata have by

The optimum yield on the basis of

of A. tortilis, A. amara and H; binata be 11,

and 8 of at 'in the systems show that H.

binata associated system gave the maximum tonnage followed by A. tortilis and A. amara biomass

l functions evolved on the basis of five initial data of components in the systems.

in m

to monsoon climate, the

is to meet the

&

to optimize the at

to in

of

1

I

l

Site : is situated at 25'27' N, 78'37' E and at an altitude of 275 m above

i msl on alfisols in an 900 mm

with as high as 46.3'C and as low as 1.5'C

Acacia tortilis, Albizia amara, and Hardwickia binatu

Cenchrus ciliaris, Cenchrus setigrus and a legume Stylosanthes hamuta at

and biomass at tha)

l

^study.

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-

lotus 123 ( &

1990-9 1 and Thomas et al 1991).

A. tortilis

0.7078 0.744

dy ⁼1.1 131 0.74

A. amara

H. binata

dy= 1.227 0.81

on mean

of A. tortilis, A. amara, and H. binata to be 11, 8, and 8

2.

A. tortilis A. amara

H. binata

)), 0.983

20 Em(-4.2937 0.526

. 20 0.896

3.

A. tortilis

0.081 1 , 0.834

0.784

Leaf biomass= 0.003 0.57

biomassz 0.043 18 0.981

0.808 Twig biomass= 0.01658 0.888

0.895 0.71

Leaf biomass= 0.0026 0.57

A. amara

H. binata

4.

show (Fig 1,2 & 3).

of above in at 10, 12, and 15

at system show that among the systems the H binata

giving the maximum tonnage.

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A.tortiYis, Csetigerus & S.hamata

593 439

2

⁴⁹⁵

431 397 333

l 3 5 7 9 11 13 15

Year of study Dry grass yield A. silvipastoral system

Sehima

-

Dichantium natural cover

m 435 3,5 235 135

1 3 5 7 ⁹ ¹¹ ¹³ 15

Year

of study 2: Dry grass yield A. amara silvipastoral system

C.ciliaris, Smervosum & S.hamata

7 6 g 4

3 2 1

1 3 5 7 9 11 13 15

Year

of study 3: Dry grass yield binata silvipastoral system

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Table vstern

et al (1 994)

A. tortilis by at a

site to the benefit the

Acknowledgements

thankful to jhansi

facilities. We thankful to staff of help in the data. Financial is also acknowledged.

Patil Pathak P.S., 1977. plantations and systems

T.A., Pathak P.S., Gupta 1994. Acucia tortilis using

system analysis methodologies. & Agroforestry : 15(2)pp 203-210.

T.A., Pathak P.S., 1990-91. Annual Jhansi, pp 75-

Thomas Suntud Sangkur, Willis 1991. Agroforestry in Asia and the (Eds. W.

12: 75-87.

and 199115 FAO,