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Rural Works Department-
Arunachal Pradesh

River Valley Project

 

Soil conservation for enhancing the productivity of degraded lands in the catchments of River Valley Project and Flood Prone River (RVP and FPR) is one of the major centrally sponsored watershed development programmes of Govt. of India, Ministry of Agriculture. The details of the programme are described below:-

Background:-

The Centrally Sponsored Scheme of soil conservation in the catchments of River Valley Projects (RVP) was launched in the III Five Year Plan. Subsequently another Centrally Sponsored Scheme of integrated watershed management in the catchments of Flood Prone River (FPR) was launched during VI Five Year Plan. These schemes are primarily meant for treating catchments areas (extending over more than one State) with appropriate soil and water conservation measures to enhance the productivity of degraded lands, minimize siltation rates in reservoirs and reduce flood peaks in flood prone rivers. During IX Plan both schemes have been merged together and from November 2000 onwards this scheme has also been amalgamated under Macro Management Mode.

Objectives:-

The initial objectives of these two programmes were to reduce siltation of the reservoirs and also to reduce flood peak and volume. However, with change in watershed approach the objective of the programme has been revised as given below:-

(1)    Prevention of land degradation by adoption of multi-disciplinary integrated approach of soil conservation and watershed management in the catchment areas.

(2)    Improvement of land capacity and moisture regime.

(3)    Promotion of landuse to match land capacity.

(4)    Prevention of soil loss from the catchments to reduce siltation of multipurpose reservoirs and enhance the in-situ moisture conservation and surface rain water storages in the catchments to  reduce flood peaks and volume of runoff.

 

Identification of catchments/watersheds:-

Under this programme the catchments of inter-State nature having high rate of siltation and flood magnitude are adopted for catchment area treatment. After inclusion of the catchment the All India Soil & Land Use Survey (AIS&LUS) Organisation conducts priority delineation survey and categorized the watershed depending upon the degradation of the area. Out of five categories viz.  very high, high, medium, low and very low, only high and very high categories of watersheds are adopted for catchment area treatment.

Operational area:-

                        During X Five Year Plan two catchments of Arunachal Pradesh, namely Dikrong and Jia Bharali have been included in RVP and FPR programme. This programme is being implemented in these two catchments.

The details of the priority delineation done by AIS&LUS, Kolkata is given below:-

S.No.

Name of catchment

Category

No. of micro watershed

Area in

Ha

Percentage

1.

Dikrong

1) Very high

49 Nos.

26,716

16.52

 

 

2) High

101 No.

55,142

34.09

 

 

3) Medium

62 Nos.

32,420

20.05

 

 

4) Low

25 Nos.

11,932

7.38

 

 

5) Very Low

45 Nos.

35,521

21.96

 

 

Grand total

282 Nos.

1,61,731

100

2.

Jia Bharali

a) 3A3B (Part)

1) Very high

51

30,880

30.14

 

 

2) High

35

20,155

19.67

 

 

3) Medium

85

50,121

48.93

 

 

4) Low

3

1286

1.26

 

 

Total

174

1,02,442

100

 

b) 3A3D (Part)

1) Very high

115

87,370

88.91

 

 

2) High

18

10,896

11.09

 

 

Total

133

98,266

100

At present 8 nos micro watersheds of Dikrong catchment and 1 No. micro watershed of Jia Bharali are under implementation and 1 No. Silt Monitoring Station has been set up at Dikrong catchment.

Package of treatment:-

In view to minimize soil erosion, to reduce sedimentation deposited into the reservoirs, to reduce flood peaks and volume and ultimately increase agricultural productivity, soil and water conservation measures have been adopted under RVP & FPR on watershed basis in an integrated manner. All type of lands viz. agriculture land, forest land and waste land are treated with suitable soil and water conservation measures as per the guidelines of the scheme.

Approach:-

The treatments of the watersheds are planned on a project basis for a total period of five years. For this purpose, the watershed is divided into micro watersheds of 500 1000 Ha and the work programme disaggregated on the basis of these micro watersheds. The treatment of each micro watershed would be phased over 3 to 5 years, so as to saturate the whole watershed in a period of 5 years. Treatment measures for soil and moisture conservation and afforestation are planned in a synchronized manner so as to complete the treatment of the whole watershed within the planned period from all aspects.

 

Implementation through Macro Management Mode:-

After amalgamation under Macro Management Mode, the Policy and Plan Division of Department of Agriculture and Cooperation, Govt. of India is providing funds to State Agriculture Department and State Agriculture Department further release fund to concerned line department wherever required. The programme is being implemented as per the guidelines approved during IX Plan and is also being monitored by the Natural Resource Management Division, Govt. of India, New Delhi.

 

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